Merge pull request #3 from Agorise/develop

Develop

app/build.gradle

@@ -1,7 +1,10 @@
 apply plugin: 'com.android.application'
+apply plugin: "androidx.navigation.safeargs"
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 apply plugin: 'kotlin-kapt'
+apply plugin: 'io.fabric'
+apply plugin: 'com.google.gms.google-services'
 
 android {
     compileSdkVersion 28
@@ -15,31 +18,69 @@ android {
     }
     buildTypes {
         release {
-            minifyEnabled false
+            minifyEnabled true
+            shrinkResources true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
+        debug {
+            // TODO enabling minify breaks the debugger breakpoints, find a way to fix it and enable minify again
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            resValue("string", "PORT_NUMBER", "8082")
+        }
+    }
+    android.packagingOptions {
+        exclude 'lib/x86_64/darwin/libscrypt.dylib'
+        exclude 'lib/x86_64/freebsd/libscrypt.so'
+        exclude 'lib/x86_64/linux/libscrypt.so'
     }
 }
 
 dependencies {
     def lifecycle_version = "2.0.0"
-    def room_version = "2.1.0-alpha02"
+    def room_version = "2.1.0-alpha03"
+    def nav_version = "1.0.0-alpha09"
+    def rx_bindings_version = "3.0.0-alpha2"
 
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation project(':graphenejlib:graphenej')
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-    implementation 'androidx.appcompat:appcompat:1.0.0'
+    // AndroidX
+    implementation 'androidx.appcompat:appcompat:1.0.2'
     implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha2'
-    implementation 'com.google.android.material:material:1.0.0'
+    // Google
-    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     implementation 'com.google.zxing:core:3.3.1'
-    implementation 'me.dm7.barcodescanner:zxing:1.9.8'
+    implementation 'com.google.code.gson:gson:2.8.5'
-
+    implementation 'com.google.android.material:material:1.0.0'
+    implementation 'com.google.android.gms:play-services-maps:16.0.0'
+    // AAC Lifecycle
     implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"
     kapt "androidx.lifecycle:lifecycle-compiler:$lifecycle_version"
-
+    // AAC Room
     implementation "androidx.room:room-runtime:$room_version"
     kapt "androidx.room:room-compiler:$room_version"
+    implementation "androidx.room:room-rxjava2:$room_version" // RxJava support for Room
+    // AAC Navigation
+    implementation "android.arch.navigation:navigation-fragment-ktx:$nav_version"
+    implementation "android.arch.navigation:navigation-ui-ktx:$nav_version"
+    // RxBindings
+    implementation "com.jakewharton.rxbinding3:rxbinding:$rx_bindings_version"
+    implementation "com.jakewharton.rxbinding3:rxbinding-material:$rx_bindings_version" // Material Components widgets
+    implementation "com.jakewharton.rxbinding3:rxbinding-appcompat:$rx_bindings_version" // AndroidX appcompat widgets
+    // Retrofit
+    implementation 'com.squareup.retrofit2:retrofit:2.5.0'
+    implementation 'com.squareup.retrofit2:converter-gson:2.5.0'
+    //Firebase
+    implementation 'com.google.firebase:firebase-core:16.0.6'
+    implementation 'com.google.firebase:firebase-crash:16.2.1'
+    implementation 'com.crashlytics.sdk.android:crashlytics:2.9.7'
+    // Others
+    implementation 'org.bitcoinj:bitcoinj-core:0.14.3'
+    implementation 'com.moldedbits.r2d2:r2d2:1.0.1'
+    implementation 'me.dm7.barcodescanner:zxing:1.9.8'
+    implementation 'com.afollestad.material-dialogs:core:2.0.0-rc3'
+    // Android Debug Database
+    debugImplementation 'com.amitshekhar.android:debug-db:1.0.4'
 
 //    TODO enable and make proper testing
 //    testImplementation 'junit:junit:4.12'

app/proguard-rules.pro

@@ -19,3 +19,14 @@
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
+
+-dontwarn sun.misc.Unsafe
+-dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
+-dontwarn org.bitcoinj.store**
+-dontwarn org.slf4j.**
+-dontwarn okhttp3.internal.platform.*
+
+# Firabase Crashlytics
+-keepattributes *Annotation*
+-keepattributes SourceFile,LineNumberTable
+-keep public class * extends java.lang.Exception

app/src/debug/res/values/google_maps_api.xml

@@ -0,0 +1,24 @@
+<resources>
+    <!--
+    Before you run your application, you need a Google Maps API key.
+
+    To get one, follow this link, follow the directions and press "Create" at the end:
+
+    https://console.developers.google.com/flows/enableapi?apiid=maps_android_backend&keyType=CLIENT_SIDE_ANDROID&r=08:07:B8:EC:7B:1E:00:82:29:24:A8:08:A6:AD:84:76:1C:D2:69:1A%3Bcy.agorise.bitsybitshareswallet.activities
+
+    You can also add your credentials to an existing key, using these values:
+
+    Package name:
+    08:07:B8:EC:7B:1E:00:82:29:24:A8:08:A6:AD:84:76:1C:D2:69:1A
+
+    SHA-1 certificate fingerprint:
+    08:07:B8:EC:7B:1E:00:82:29:24:A8:08:A6:AD:84:76:1C:D2:69:1A
+
+    Alternatively, follow the directions here:
+    https://developers.google.com/maps/documentation/android/start#get-key
+
+    Once you have your key (it starts with "AIza"), replace the "google_maps_key"
+    string in this file.
+    -->
+    <string name="google_maps_key" translatable="false" templateMergeStrategy="preserve">AIzaSyDIYbjdkZqbLUINQXrAzNSjNwep5jGNjKA</string>
+</resources>

app/src/main/AndroidManifest.xml

@@ -3,42 +3,64 @@
           xmlns:tools="http://schemas.android.com/tools"
           package="cy.agorise.bitsybitshareswallet">
 
+    <!--
+         The ACCESS_COARSE/FINE_LOCATION permissions are not required to use
+         Google Maps Android API v2, but you must specify either coarse or fine
+         location permissions for the 'MyLocation' functionality.
+    -->
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.CAMERA"/>
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+
     <application
+        android:name=".utils.BitsyApplication"
         android:allowBackup="true"
-        android:icon="@drawable/bts_logo"
+        android:icon="@drawable/ic_bitsy_logo"
         android:label="@string/app_name"
-        android:roundIcon="@drawable/bts_logo"
+        android:roundIcon="@drawable/ic_bitsy_logo"
         android:supportsRtl="true"
-        android:theme="@style/AppTheme"
+        android:theme="@style/Theme.Bitsy"
         tools:ignore="GoogleAppIndexingWarning">
+
+        <!--
+             The API key for Google Maps-based APIs is defined as a string resource.
+             (See the file "res/values/google_maps_api.xml").
+             Note that the API key is linked to the encryption key used to sign the APK.
+             You need a different API key for each encryption key, including the release key that is used to
+             sign the APK for publishing.
+             You can define the keys for the debug and release targets in src/debug/ and src/release/.
+        -->
+        <meta-data
+            android:name="com.google.android.geo.API_KEY"
+            android:value="@string/google_maps_key"/>
         <activity
-            android:name=".activities.MainActivity"
+            android:name=".activities.SplashActivity"
-            android:label="@string/app_name"
+            android:theme="@style/SplashTheme">
-            android:theme="@style/AppTheme.NoActionBar">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
 
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
+        <activity android:name=".activities.LicenseActivity"/>
+        <activity android:name=".activities.ImportBrainkeyActivity"/>
         <activity
-            android:name=".activities.SettingsActivity"
+            android:name=".activities.MainActivity"
-            android:label="@string/title_settings">
-        </activity>
-        <activity android:name=".activities.SendTransactionActivity">
-        </activity>
-        <activity android:name=".activities.ReceiveTransactionActivity">
-        </activity>
-
-        <!--<activity
-                android:name="de.bitshares_munich.smartcoinswallet.ReceiveActivity"
             android:screenOrientation="portrait"
-                android:theme="@style/AppTheme" />-->
+            android:theme="@style/Theme.Bitsy.NoActionBar"
-
+            android:windowSoftInputMode="adjustPan"/>
-        <activity
+        <!-- Used to share QR code on QRCodeActivity -->
-                android:name=".activities.RequestActivity"
+        <provider
-                android:screenOrientation="portrait"
+            android:name="androidx.core.content.FileProvider"
-                android:theme="@style/AppTheme" />
+            android:authorities="cy.agorise.bitsybitshareswallet.FileProvider"
+            android:grantUriPermissions="true"
+            android:exported="false">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/tmp_image_path" />
+        </provider>
     </application>
 
 </manifest>

app/src/main/java/cy/agorise/bitsybitshareswallet/activities/ConnectedActivity.kt

@@ -0,0 +1,420 @@
+package cy.agorise.bitsybitshareswallet.activities
+
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.content.ServiceConnection
+import android.os.Bundle
+import android.os.Handler
+import android.os.IBinder
+import android.preference.PreferenceManager
+import android.util.Log
+import android.widget.Toast
+import androidx.appcompat.app.AppCompatActivity
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProviders
+import cy.agorise.bitsybitshareswallet.database.entities.Balance
+import cy.agorise.bitsybitshareswallet.processors.TransfersLoader
+import cy.agorise.bitsybitshareswallet.repositories.AssetRepository
+import cy.agorise.bitsybitshareswallet.utils.Constants
+import cy.agorise.bitsybitshareswallet.viewmodels.BalanceViewModel
+import cy.agorise.bitsybitshareswallet.viewmodels.TransferViewModel
+import cy.agorise.bitsybitshareswallet.viewmodels.UserAccountViewModel
+import cy.agorise.graphenej.Asset
+import cy.agorise.graphenej.AssetAmount
+import cy.agorise.graphenej.UserAccount
+import cy.agorise.graphenej.api.ConnectionStatusUpdate
+import cy.agorise.graphenej.api.android.NetworkService
+import cy.agorise.graphenej.api.android.RxBus
+import cy.agorise.graphenej.api.calls.*
+import cy.agorise.graphenej.models.AccountProperties
+import cy.agorise.graphenej.models.BlockHeader
+import cy.agorise.graphenej.models.FullAccountDetails
+import cy.agorise.graphenej.models.JsonRpcResponse
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.disposables.Disposable
+import java.text.ParseException
+import java.text.SimpleDateFormat
+import java.util.*
+import kotlin.collections.ArrayList
+import kotlin.collections.HashMap
+
+/**
+ * Class in charge of managing the connection to graphenej's NetworkService
+ */
+abstract class ConnectedActivity : AppCompatActivity(), ServiceConnection {
+    private val TAG = this.javaClass.simpleName
+
+    private val RESPONSE_GET_FULL_ACCOUNTS = 1
+    private val RESPONSE_GET_ACCOUNTS = 2
+    private val RESPONSE_GET_ACCOUNT_BALANCES = 3
+    private val RESPONSE_GET_ASSETS = 4
+    private val RESPONSE_GET_BLOCK_HEADER = 5
+
+    private lateinit var mUserAccountViewModel: UserAccountViewModel
+    private lateinit var mBalanceViewModel: BalanceViewModel
+    private lateinit var mTransferViewModel: TransferViewModel
+
+    private lateinit var mAssetRepository: AssetRepository
+
+    /* Current user account */
+    protected var mCurrentAccount: UserAccount? = null
+
+    private val mHandler = Handler()
+
+    // Disposable returned at the bus subscription
+    private var mDisposable: Disposable? = null
+
+    private var storedOpCount: Long = -1
+
+    private var missingUserAccounts = ArrayList<UserAccount>()
+    private var missingAssets = ArrayList<Asset>()
+
+    /* Network service connection */
+    protected var mNetworkService: NetworkService? = null
+
+    // Map used to keep track of request and response id pairs
+    private val responseMap = HashMap<Long, Int>()
+
+    /** Map used to keep track of request id and block number pairs */
+    private val requestIdToBlockNumberMap = HashMap<Long, Long>()
+
+    private var blockNumberWithMissingTime = 0L
+
+    /**
+     * Flag used to keep track of the NetworkService binding state
+     */
+    private var mShouldUnbindNetwork: Boolean = false
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        val userId = PreferenceManager.getDefaultSharedPreferences(this)
+            .getString(Constants.KEY_CURRENT_ACCOUNT_ID, "")
+        if (userId != "")
+            mCurrentAccount = UserAccount(userId)
+
+        mAssetRepository = AssetRepository(this)
+
+        // Configure UserAccountViewModel to obtain the missing account ids
+        mUserAccountViewModel = ViewModelProviders.of(this).get(UserAccountViewModel::class.java)
+
+        mUserAccountViewModel.getMissingUserAccountIds().observe(this, Observer<List<String>>{ userAccountIds ->
+            if (userAccountIds.isNotEmpty()) {
+                missingUserAccounts.clear()
+                for (userAccountId in userAccountIds)
+                    missingUserAccounts.add(UserAccount(userAccountId))
+
+                mHandler.postDelayed(mRequestMissingUserAccountsTask, Constants.NETWORK_SERVICE_RETRY_PERIOD)
+            }
+        })
+
+        // Configure UserAccountViewModel to obtain the missing account ids
+        mBalanceViewModel = ViewModelProviders.of(this).get(BalanceViewModel::class.java)
+
+        mBalanceViewModel.getMissingAssetIds().observe(this, Observer<List<String>>{ assetIds ->
+            if (assetIds.isNotEmpty()) {
+                missingAssets.clear()
+                for (assetId in assetIds)
+                    missingAssets.add(Asset(assetId))
+
+                mHandler.postDelayed(mRequestMissingAssetsTask, Constants.NETWORK_SERVICE_RETRY_PERIOD)
+            }
+        })
+
+        //Configure TransferViewModel to obtain the Transfer's block numbers with missing time information, one by one
+        mTransferViewModel = ViewModelProviders.of(this).get(TransferViewModel::class.java)
+
+        mTransferViewModel.getTransferBlockNumberWithMissingTime().observe(this, Observer<Long>{ blockNumber ->
+            if (blockNumber != null && blockNumber != blockNumberWithMissingTime) {
+                blockNumberWithMissingTime = blockNumber
+                Log.d(TAG, "Block number: $blockNumber, Time: ${System.currentTimeMillis()}")
+                mHandler.postDelayed(mRequestBlockMissingTimeTask, 10)
+            }
+        })
+
+        mDisposable = RxBus.getBusInstance()
+            .asFlowable()
+            .observeOn(AndroidSchedulers.mainThread())
+            .subscribe { handleIncomingMessage(it) }
+    }
+
+    private fun handleIncomingMessage(message: Any?) {
+        if (message is JsonRpcResponse<*>) {
+            // Generic processing taken care by subclasses
+            handleJsonRpcResponse(message)
+
+            if (message.error == null) {
+                if (responseMap.containsKey(message.id)) {
+                    val responseType = responseMap[message.id]
+                    when (responseType) {
+                        RESPONSE_GET_FULL_ACCOUNTS      ->
+                            handleAccountDetails((message.result as List<*>)[0] as FullAccountDetails)
+
+                        RESPONSE_GET_ACCOUNTS           ->
+                            handleAccountProperties(message.result as List<AccountProperties>)
+
+                        RESPONSE_GET_ACCOUNT_BALANCES   ->
+                            handleBalanceUpdate(message.result as List<AssetAmount>)
+
+                        RESPONSE_GET_ASSETS             ->
+                            handleAssets(message.result as List<Asset>)
+
+                        RESPONSE_GET_BLOCK_HEADER       -> {
+                            val blockNumber = requestIdToBlockNumberMap[message.id] ?: 0L
+                            handleBlockHeader(message.result as BlockHeader, blockNumber)
+                            requestIdToBlockNumberMap.remove(message.id)
+                        }
+                    }
+                    responseMap.remove(message.id)
+                }
+            } else {
+                // In case of error
+                Log.e(TAG, "Got error message from full node. Msg: " + message.error.message)
+                Toast.makeText(
+                    this@ConnectedActivity,
+                    String.format("Error from full node. Msg: %s", message.error.message),
+                    Toast.LENGTH_LONG
+                ).show()
+            }
+        } else if (message is ConnectionStatusUpdate) {
+            handleConnectionStatusUpdate(message)
+            if (message.updateCode == ConnectionStatusUpdate.DISCONNECTED) {
+                // If we got a disconnection notification, we should clear our response map, since
+                // all its stored request ids will now be reset
+                responseMap.clear()
+            }
+        }
+    }
+
+    /**
+     * Method called whenever a response to the 'get_full_accounts' API call has been detected.
+     * @param accountDetails    De-serialized account details object
+     */
+    private fun handleAccountDetails(accountDetails: FullAccountDetails) {
+        val latestOpCount = accountDetails.statistics.total_ops
+        Log.d(TAG, "handleAccountDetails. prev count: $storedOpCount, current count: $latestOpCount")
+
+        if (latestOpCount == 0L) {
+            Log.d(TAG, "The node returned 0 total_ops for current account and may not have installed the history plugin. " +
+                    "\nAsk the NetworkService to remove the node from the list and connect to another one.")
+            mNetworkService!!.removeCurrentNodeAndReconnect()
+        } else if (storedOpCount == -1L) {
+            // Initial case when the app starts
+            storedOpCount = latestOpCount
+            PreferenceManager.getDefaultSharedPreferences(this)
+                .edit().putLong(Constants.KEY_ACCOUNT_OPERATION_COUNT, latestOpCount).apply()
+            TransfersLoader(this)
+            updateBalances()
+        } else if (latestOpCount > storedOpCount) {
+            storedOpCount = latestOpCount
+            TransfersLoader(this)
+            updateBalances()
+        }
+    }
+
+    /**
+     * Receives a list of missing [AccountProperties] from which it extracts the required information to
+     * create a list of BiTSy's UserAccount objects and stores them into the database
+     */
+    private fun handleAccountProperties(accountPropertiesList: List<AccountProperties>) {
+        val userAccounts = ArrayList<cy.agorise.bitsybitshareswallet.database.entities.UserAccount>()
+
+        for (accountProperties in accountPropertiesList) {
+            val userAccount = cy.agorise.bitsybitshareswallet.database.entities.UserAccount(
+                accountProperties.id,
+                accountProperties.name,
+                accountProperties.membership_expiration_date == Constants.LIFETIME_EXPIRATION_DATE
+            )
+
+            userAccounts.add(userAccount)
+        }
+
+        mUserAccountViewModel.insertAll(userAccounts)
+        missingUserAccounts.clear()
+    }
+
+    private fun handleBalanceUpdate(assetAmountList: List<AssetAmount>) {
+        Log.d(TAG, "handleBalanceUpdate")
+        val now = System.currentTimeMillis() / 1000
+        val balances = ArrayList<Balance>()
+        for (assetAmount in assetAmountList) {
+            val balance = Balance(
+                assetAmount.asset.objectId,
+                assetAmount.amount.toLong(),
+                now
+            )
+
+            balances.add(balance)
+        }
+
+        mBalanceViewModel.insertAll(balances)
+    }
+
+    /**
+     * Receives a list of missing [Asset] from which it extracts the required information to
+     * create a list of BiTSy's Asset objects and stores them into the database
+     */
+    private fun handleAssets(_assets: List<Asset>) {
+        val assets = ArrayList<cy.agorise.bitsybitshareswallet.database.entities.Asset>()
+
+        for (_asset in _assets) {
+            val asset = cy.agorise.bitsybitshareswallet.database.entities.Asset(
+                _asset.objectId,
+                _asset.symbol,
+                _asset.precision,
+                _asset.description ?: "",
+                _asset.bitassetId ?: ""
+            )
+
+            assets.add(asset)
+        }
+
+        mAssetRepository.insertAll(assets)
+        missingAssets.clear()
+    }
+
+    /**
+     * Receives the [BlockHeader] related to a Transfer's missing time and saves it into the database.
+     */
+    private fun handleBlockHeader(blockHeader: BlockHeader, blockNumber: Long) {
+
+        val dateFormat = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss", Locale.US)
+        dateFormat.timeZone = TimeZone.getTimeZone("GMT")
+
+        try {
+            val date = dateFormat.parse(blockHeader.timestamp)
+            mTransferViewModel.setBlockTime(blockNumber, date.time / 1000)
+        } catch (e: ParseException) {
+            Log.e(TAG, "ParseException. Msg: " + e.message)
+        }
+    }
+
+    private fun updateBalances() {
+        if (mNetworkService!!.isConnected) {
+            val id = mNetworkService!!.sendMessage(GetAccountBalances(mCurrentAccount, ArrayList()),
+                GetAccountBalances.REQUIRED_API)
+
+            responseMap[id] = RESPONSE_GET_ACCOUNT_BALANCES
+        }
+    }
+
+    /**
+     * Task used to obtain the missing UserAccounts from Graphenej's NetworkService.
+     */
+    private val mRequestMissingUserAccountsTask = object : Runnable {
+        override fun run() {
+            if (mNetworkService!!.isConnected) {
+                val id = mNetworkService!!.sendMessage(GetAccounts(missingUserAccounts), GetAccounts.REQUIRED_API)
+
+                responseMap[id] = RESPONSE_GET_ACCOUNTS
+            } else if (missingUserAccounts.isNotEmpty()){
+                mHandler.postDelayed(this, Constants.NETWORK_SERVICE_RETRY_PERIOD)
+            }
+        }
+    }
+
+    /**
+     * Task used to obtain the missing Assets from Graphenej's NetworkService.
+     */
+    private val mRequestMissingAssetsTask = object : Runnable {
+        override fun run() {
+            if (mNetworkService!!.isConnected) {
+                val id = mNetworkService!!.sendMessage(GetAssets(missingAssets), GetAssets.REQUIRED_API)
+
+                responseMap[id] = RESPONSE_GET_ASSETS
+            } else if (missingAssets.isNotEmpty()){
+                mHandler.postDelayed(this, Constants.NETWORK_SERVICE_RETRY_PERIOD)
+            }
+        }
+    }
+
+    /**
+     * Task used to perform a redundant payment check.
+     */
+    private val mCheckMissingPaymentsTask = object : Runnable {
+        override fun run() {
+            if (mNetworkService != null && mNetworkService!!.isConnected) {
+                if (mCurrentAccount != null) {
+                    val userAccounts = ArrayList<String>()
+                    userAccounts.add(mCurrentAccount!!.objectId)
+                    val id = mNetworkService!!.sendMessage(GetFullAccounts(userAccounts, false),
+                        GetFullAccounts.REQUIRED_API)
+
+                    responseMap[id] = RESPONSE_GET_FULL_ACCOUNTS
+                }
+            } else {
+                Log.w(TAG, "NetworkService is null or is not connected. mNetworkService: $mNetworkService")
+            }
+            mHandler.postDelayed(this, Constants.MISSING_PAYMENT_CHECK_PERIOD)
+
+        }
+    }
+
+    /**
+     * Task used to obtain the missing time from a block from Graphenej's NetworkService.
+     */
+    private val mRequestBlockMissingTimeTask = object : Runnable {
+        override fun run() {
+
+            if (mNetworkService != null && mNetworkService!!.isConnected) {
+                val id = mNetworkService!!.sendMessage(GetBlockHeader(blockNumberWithMissingTime),
+                    GetBlockHeader.REQUIRED_API)
+
+                responseMap[id] = RESPONSE_GET_BLOCK_HEADER
+                requestIdToBlockNumberMap[id] = blockNumberWithMissingTime
+            } else {
+                mHandler.postDelayed(this, Constants.MISSING_PAYMENT_CHECK_PERIOD)
+            }
+        }
+    }
+
+    override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
+        // We've bound to LocalService, cast the IBinder and get LocalService instance
+        val binder = service as NetworkService.LocalBinder
+        mNetworkService = binder.service
+    }
+
+    override fun onServiceDisconnected(name: ComponentName?) { }
+
+    override fun onPause() {
+        super.onPause()
+        // Unbinding from network service
+        if (mShouldUnbindNetwork) {
+            unbindService(this)
+            mShouldUnbindNetwork = false
+        }
+        mHandler.removeCallbacks(mCheckMissingPaymentsTask)
+        mHandler.removeCallbacks(mRequestMissingUserAccountsTask)
+        mHandler.removeCallbacks(mRequestMissingAssetsTask)
+    }
+
+    override fun onResume() {
+        super.onResume()
+
+        val intent = Intent(this, NetworkService::class.java)
+        if (bindService(intent, this, Context.BIND_AUTO_CREATE)) {
+            mShouldUnbindNetwork = true
+        } else {
+            Log.e(TAG, "Binding to the network service failed.")
+        }
+        mHandler.postDelayed(mCheckMissingPaymentsTask, Constants.MISSING_PAYMENT_CHECK_PERIOD)
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        if (!mDisposable!!.isDisposed) mDisposable!!.dispose()
+    }
+
+    /**
+     * Method to be implemented by all subclasses in order to be notified of JSON-RPC responses.
+     * @param response
+     */
+    internal abstract fun handleJsonRpcResponse(response: JsonRpcResponse<*>)
+
+    /**
+     * Method to be implemented by all subclasses in order to be notified of connection status updates
+     * @param connectionStatusUpdate
+     */
+    internal abstract fun handleConnectionStatusUpdate(connectionStatusUpdate: ConnectionStatusUpdate)
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/activities/ImportBrainkeyActivity.kt

@@ -0,0 +1,357 @@
+package cy.agorise.bitsybitshareswallet.activities
+
+import android.content.Intent
+import android.os.Bundle
+import android.preference.PreferenceManager
+import android.util.Log
+import android.widget.Toast
+import com.afollestad.materialdialogs.MaterialDialog
+import com.afollestad.materialdialogs.list.listItemsSingleChoice
+import com.jakewharton.rxbinding3.widget.textChanges
+import cy.agorise.bitsybitshareswallet.R
+import cy.agorise.bitsybitshareswallet.database.entities.Authority
+import cy.agorise.bitsybitshareswallet.repositories.AuthorityRepository
+import cy.agorise.bitsybitshareswallet.repositories.UserAccountRepository
+import cy.agorise.bitsybitshareswallet.utils.Constants
+import cy.agorise.bitsybitshareswallet.utils.CryptoUtils
+import cy.agorise.graphenej.*
+import cy.agorise.graphenej.api.ConnectionStatusUpdate
+import cy.agorise.graphenej.api.calls.GetAccounts
+import cy.agorise.graphenej.api.calls.GetKeyReferences
+import cy.agorise.graphenej.models.AccountProperties
+import cy.agorise.graphenej.models.JsonRpcResponse
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.disposables.CompositeDisposable
+import kotlinx.android.synthetic.main.activity_import_brainkey.*
+import org.bitcoinj.core.ECKey
+import java.util.ArrayList
+import java.util.concurrent.TimeUnit
+
+// TODO Add method to load the 20? most important assets
+// TODO add progress bar or something while the user waits for the import response from the node
+
+class ImportBrainkeyActivity : ConnectedActivity() {
+    private val TAG = "ImportBrainkeyActivity"
+
+    /**
+     * Private variable that will hold an instance of the [BrainKey] class
+     */
+    private var mBrainKey: BrainKey? = null
+
+    /**
+     * User account associated with the key derived from the brainkey that the user just typed in
+     */
+    private var mUserAccount: UserAccount? = null
+
+    /**
+     * List of user account candidates, this is required in order to allow the user to select a single
+     * user account in case one key (derived from the brainkey) controls more than one account.
+     */
+    private var mUserAccountCandidates: List<UserAccount>? = null
+
+    private var mKeyReferencesAttempts = 0
+
+    private var keyReferencesRequestId: Long = 0
+    private var getAccountsRequestId: Long = 0
+
+    private var mDisposables = CompositeDisposable()
+
+    private var isPINValid = false
+    private var isPINConfirmationValid = false
+    private var isBrainKeyValid = false
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_import_brainkey)
+
+        // Use RxJava Debounce to update the PIN error only after the user stops writing for > 500 ms
+        mDisposables.add(
+            tietPin.textChanges()
+                .skipInitialValue()
+                .debounce(500, TimeUnit.MILLISECONDS)
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe { validatePIN() }
+        )
+
+        // Use RxJava Debounce to update the PIN Confirmation error only after the user stops writing for > 500 ms
+        mDisposables.add(
+            tietPinConfirmation.textChanges()
+                .skipInitialValue()
+                .debounce(500, TimeUnit.MILLISECONDS)
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe { validatePINConfirmation() }
+        )
+
+        // Use RxJava Debounce to update the BrainKey error only after the user stops writing for > 500 ms
+        mDisposables.add(
+            tietBrainKey.textChanges()
+                .skipInitialValue()
+                .debounce(500, TimeUnit.MILLISECONDS)
+                .map { it.toString().trim() }
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe { validateBrainKey(it) }
+        )
+
+        btnImport.isEnabled = false
+        btnImport.setOnClickListener { verifyBrainKey(false) }
+    }
+
+    private fun validatePIN() {
+        val pin = tietPin.text.toString()
+
+        if (pin.length < Constants.MIN_PIN_LENGTH) {
+            tilPin.error = getString(R.string.error__pin_too_short)
+            isPINValid = false
+        } else {
+            tilPin.isErrorEnabled = false
+            isPINValid = true
+        }
+
+        validatePINConfirmation()
+    }
+
+    private fun validatePINConfirmation() {
+        val pinConfirmation = tietPinConfirmation.text.toString()
+
+        if (pinConfirmation != tietPin.text.toString()) {
+            tilPinConfirmation.error = getString(R.string.error__pin_mismatch)
+            isPINConfirmationValid = false
+        } else {
+            tilPinConfirmation.isErrorEnabled = false
+            isPINConfirmationValid = true
+        }
+
+        enableDisableImportButton()
+    }
+
+    private fun validateBrainKey(brainKey: String) {
+        if (brainKey.isEmpty() || !brainKey.contains(" ") || brainKey.split(" ").size !in 12..16) {
+            tilBrainKey.error = getString(R.string.error__enter_correct_brainkey)
+            isBrainKeyValid = false
+        } else {
+            tilBrainKey.isErrorEnabled = false
+            isBrainKeyValid = true
+        }
+
+        enableDisableImportButton()
+    }
+
+    private fun enableDisableImportButton() {
+        btnImport.isEnabled =  (isPINValid && isPINConfirmationValid && isBrainKeyValid)
+    }
+
+    /**
+     * Method that will verify the provided brain key, and if valid will retrieve the account information
+     * associated to the user id.
+     *
+     * This method will perform a network lookup to look which accounts use the public key associated
+     * with the user provided brainkey.
+     *
+     * Some sources use brainkeys in capital letters, while others use lowercase. The activity should
+     * initially call this method with the 'switchCase' parameter as false, in order to try the
+     * brainkey as it was provided by the user.
+     *
+     * But in case this lookup fails, it is expected that the activity makes another attempt. This time
+     * with the 'switchCase' argument set to true.
+     *
+     * If both attempts fail, then we can be certain that the provided brainkey is not currently
+     * associated with any account.
+     *
+     * @param switchCase Whether to switch the case used in the brainkey or not.
+     */
+    private fun verifyBrainKey(switchCase: Boolean) {
+        //showDialog("", getString(R.string.importing_your_wallet))
+        val brainKey = tietBrainKey.text.toString()
+        // Should we switch the brainkey case?
+        if (switchCase) {
+            if (Character.isUpperCase(brainKey.toCharArray()[brainKey.length - 1])) {
+                // If the last character is an uppercase, we assume the whole brainkey
+                // was given in capital letters and turn it to lowercase
+                getAccountFromBrainkey(brainKey.toLowerCase())
+            } else {
+                // Otherwise we turn the whole brainkey to capital letters
+                getAccountFromBrainkey(brainKey.toUpperCase())
+            }
+        } else {
+            // If no case switching should take place, we perform the network call with
+            // the brainkey as it was provided to us.
+            getAccountFromBrainkey(brainKey)
+        }
+    }
+
+    /**
+     * Method that will send a network request asking for all the accounts that make use of the
+     * key derived from a give brain key.
+     *
+     * @param brainKey The brain key the user has just typed
+     */
+    private fun getAccountFromBrainkey(brainKey: String) {
+        mBrainKey = BrainKey(brainKey, 0)
+        val address = Address(ECKey.fromPublicOnly(mBrainKey!!.privateKey.pubKey))
+        Log.d(TAG, String.format("Brainkey would generate address: %s", address.toString()))
+        keyReferencesRequestId = mNetworkService!!.sendMessage(GetKeyReferences(address), GetKeyReferences.REQUIRED_API)
+    }
+
+    override fun handleJsonRpcResponse(response: JsonRpcResponse<*>) {
+        Log.d(TAG, "handleResponse.Thread: " + Thread.currentThread().name)
+        if (response.id == keyReferencesRequestId) {
+            val resp = response.result as List<List<UserAccount>>
+            val accountList: List<UserAccount> = resp[0].distinct()
+            if (accountList.isEmpty() && mKeyReferencesAttempts == 0) {
+                mKeyReferencesAttempts++
+                verifyBrainKey(true)
+            } else {
+                if (accountList.isEmpty()) {
+                    //hideDialog()
+                    Toast.makeText(applicationContext, R.string.error__invalid_brainkey, Toast.LENGTH_SHORT).show()
+                } else {
+                    if (accountList.size == 1) {
+                        // If we only found one account linked to this key, then we just proceed
+                        // trying to find out the account name
+                        mUserAccount = accountList[0]
+                        getAccountsRequestId =
+                                mNetworkService!!.sendMessage(GetAccounts(mUserAccount), GetAccounts.REQUIRED_API)
+                    } else {
+                        // If we found more than one account linked to this key, we must also
+                        // find out the account names, but the procedure is a bit different in
+                        // that after having those, we must still ask the user to decide which
+                        // account should be imported.
+                        mUserAccountCandidates = accountList
+                        getAccountsRequestId = mNetworkService!!.sendMessage(
+                            GetAccounts(mUserAccountCandidates),
+                            GetAccounts.REQUIRED_API
+                        )
+                    }
+                }
+            }
+        } else if (response.id == getAccountsRequestId) {
+            val accountPropertiesList = response.result as List<AccountProperties>
+            if (accountPropertiesList.size > 1) {
+                val candidates = ArrayList<String>()
+                for (accountProperties in accountPropertiesList) {
+                    candidates.add(accountProperties.name)
+                }
+//                hideDialog()
+                MaterialDialog(this)
+                    .title(R.string.dialog__account_candidates_title)
+                    .message(R.string.dialog__account_candidates_content)
+                    .listItemsSingleChoice (items = candidates, initialSelection = -1) { _, index, _ ->
+                        if (index >= 0) {
+                            // If one account was selected, we keep a reference to it and
+                            // store the account properties
+                            mUserAccount = mUserAccountCandidates!![index]
+                            onAccountSelected(accountPropertiesList[index])
+                        }
+                    }
+                    .positiveButton(android.R.string.ok)
+                    .negativeButton(android.R.string.cancel) {
+                        mKeyReferencesAttempts = 0
+                    }
+                    .cancelable(false)
+                    .show()
+            } else if (accountPropertiesList.size == 1) {
+                onAccountSelected(accountPropertiesList[0])
+            } else {
+                Toast.makeText(applicationContext, R.string.error__try_again, Toast.LENGTH_SHORT).show()
+            }
+        }
+    }
+
+    override fun handleConnectionStatusUpdate(connectionStatusUpdate: ConnectionStatusUpdate) {
+        Log.d(TAG, "handleConnectionStatusUpdate. code: " + connectionStatusUpdate.updateCode)
+    }
+
+    /**
+     * Method called internally once an account has been detected. This method will store internally
+     * the following details:
+     *
+     * - Account name in the database
+     * - Account authorities in the database
+     * - The current account id in the shared preferences
+     *
+     * @param accountProperties Account properties object
+     */
+    private fun onAccountSelected(accountProperties: AccountProperties) {
+        mUserAccount!!.name = accountProperties.name
+
+        val encryptedPIN = CryptoUtils.encrypt(this, tietPin.text!!.toString())
+
+        // Stores the user selected PIN encrypted
+        PreferenceManager.getDefaultSharedPreferences(this)
+            .edit()
+            .putString(Constants.KEY_ENCRYPTED_PIN, encryptedPIN)
+            .apply()
+
+        // Stores the accounts this key refers to
+        val id = accountProperties.id
+        val name = accountProperties.name
+        val isLTM = accountProperties.membership_expiration_date == Constants.LIFETIME_EXPIRATION_DATE
+
+        val userAccount = cy.agorise.bitsybitshareswallet.database.entities.UserAccount(id, name, isLTM)
+
+        val userAccountRepository = UserAccountRepository(application)
+        userAccountRepository.insert(userAccount)
+
+        // Stores the id of the currently active user account
+        PreferenceManager.getDefaultSharedPreferences(this)
+            .edit()
+            .putString(Constants.KEY_CURRENT_ACCOUNT_ID, mUserAccount!!.objectId)
+            .apply()
+
+        // Trying to store all possible authorities (owner, active and memo) into the database
+        val ownerAuthority = accountProperties.owner
+        val activeAuthority = accountProperties.active
+        val options = accountProperties.options
+
+        for (i in 0..2) {
+            mBrainKey!!.sequenceNumber = i
+            val publicKey = PublicKey(ECKey.fromPublicOnly(mBrainKey!!.privateKey.pubKey))
+
+            if (ownerAuthority.keyAuths.keys.contains(publicKey)) {
+                addAuthorityToDatabase(accountProperties.id, AuthorityType.OWNER.ordinal, mBrainKey!!)
+            }
+            if (activeAuthority.keyAuths.keys.contains(publicKey)) {
+                addAuthorityToDatabase(accountProperties.id, AuthorityType.ACTIVE.ordinal, mBrainKey!!)
+            }
+            if (options.memoKey == publicKey) {
+                addAuthorityToDatabase(accountProperties.id, AuthorityType.MEMO.ordinal, mBrainKey!!)
+            }
+        }
+
+        // Stores a flag into the SharedPreferences to tell the app there is an active account and there is no need
+        // to show this activity again, until the account is removed.
+        PreferenceManager.getDefaultSharedPreferences(this)
+            .edit()
+            .putBoolean(Constants.KEY_INITIAL_SETUP_DONE, true)
+            .apply()
+
+        // Send the user to the MainActivity
+        val intent = Intent(this, MainActivity::class.java)
+        startActivity(intent)
+        finish()
+    }
+
+    /**
+     * Adds the given BrainKey encrypted as AuthorityType of userId.
+     */
+    private fun addAuthorityToDatabase(userId: String, authorityType: Int, brainKey: BrainKey) {
+        val brainKeyWords = brainKey.brainKey
+        val wif = brainKey.walletImportFormat
+        val sequenceNumber = brainKey.sequenceNumber
+
+        val encryptedBrainKey = CryptoUtils.encrypt(this, brainKeyWords)
+        val encryptedSequenceNumber = CryptoUtils.encrypt(this, sequenceNumber.toString())
+        val encryptedWIF = CryptoUtils.encrypt(this, wif)
+
+        val authority = Authority(0, userId, authorityType, encryptedWIF, encryptedBrainKey, encryptedSequenceNumber)
+
+        val authorityRepository = AuthorityRepository(this)
+        authorityRepository.insert(authority)
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+
+        if (!mDisposables.isDisposed) mDisposables.dispose()
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/activities/LicenseActivity.kt

@@ -0,0 +1,55 @@
+package cy.agorise.bitsybitshareswallet.activities
+
+import android.content.Intent
+import android.os.Bundle
+import android.preference.PreferenceManager
+import androidx.appcompat.app.AppCompatActivity
+import cy.agorise.bitsybitshareswallet.R
+import cy.agorise.bitsybitshareswallet.utils.Constants
+import kotlinx.android.synthetic.main.activity_license.*
+
+class LicenseActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_license)
+
+        // Get version number of the last agreed license version
+        val agreedLicenseVersion = PreferenceManager.getDefaultSharedPreferences(this)
+            .getInt(Constants.KEY_LAST_AGREED_LICENSE_VERSION, 0)
+
+        // If the last agreed license version is the actual one then proceed to the following Activities
+        if (agreedLicenseVersion == Constants.CURRENT_LICENSE_VERSION) {
+            agree()
+        } else {
+            wbLA.loadData(getString(R.string.licence_html), "text/html", "UTF-8")
+
+            btnDisagree.setOnClickListener { finish() }
+
+            btnAgree.setOnClickListener { agree() }
+        }
+    }
+
+    /**
+     * This function stores the version of the current accepted license version into the Shared Preferences and
+     * sends the user to import/create account if there is no active account or to the MainActivity otherwise.
+     */
+    private fun agree() {
+        PreferenceManager.getDefaultSharedPreferences(this).edit()
+            .putInt(Constants.KEY_LAST_AGREED_LICENSE_VERSION, Constants.CURRENT_LICENSE_VERSION).apply()
+
+        val intent : Intent?
+
+        val initialSetupDone = PreferenceManager.getDefaultSharedPreferences(this)
+            .getBoolean(Constants.KEY_INITIAL_SETUP_DONE, false)
+
+        intent = if (!initialSetupDone)
+            Intent(this, ImportBrainkeyActivity::class.java)
+        else
+            Intent(this, MainActivity::class.java)
+
+
+        startActivity(intent)
+        finish()
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/activities/MainActivity.kt

@@ -1,90 +1,114 @@
 package cy.agorise.bitsybitshareswallet.activities
 
-import android.content.Intent
-import androidx.appcompat.app.AppCompatActivity
-
-import androidx.fragment.app.FragmentPagerAdapter
 import android.os.Bundle
-import androidx.fragment.app.Fragment
+import android.os.Handler
-import androidx.fragment.app.FragmentManager
+import android.preference.PreferenceManager
-import cy.agorise.bitsybitshareswallet.BuildConfig
+import android.view.MenuItem
+import androidx.navigation.findNavController
+import androidx.navigation.fragment.NavHostFragment
+import androidx.navigation.ui.AppBarConfiguration
+import androidx.navigation.ui.navigateUp
+import androidx.navigation.ui.onNavDestinationSelected
+import androidx.navigation.ui.setupActionBarWithNavController
 import cy.agorise.bitsybitshareswallet.R
-import cy.agorise.bitsybitshareswallet.fragments.BalancesFragment
+import cy.agorise.bitsybitshareswallet.utils.Constants
-import cy.agorise.bitsybitshareswallet.fragments.MerchantsFragment
+import cy.agorise.graphenej.api.ConnectionStatusUpdate
-import cy.agorise.bitsybitshareswallet.fragments.TransactionsFragment
+import cy.agorise.graphenej.models.JsonRpcResponse
-
 import kotlinx.android.synthetic.main.activity_main.*
 
-class MainActivity : AppCompatActivity() {
+class MainActivity : ConnectedActivity() {
+    private val TAG = this.javaClass.simpleName
 
-    /**
+    private lateinit var appBarConfiguration : AppBarConfiguration
-     * The [androidx.fragment.app.FragmentPagerAdapter] that will provide
+
-     * fragments for each of the sections. We use a
+    // Handler and Runnable used to add a timer for user inaction and close the app if enough time has passed
-     * {@link FragmentPagerAdapter} derivative, which will keep every
+    private lateinit var mHandler: Handler
-     * loaded fragment in memory. If this becomes too memory intensive, it
+    private lateinit var mRunnable: Runnable
-     * may be best to switch to a
-     * [androidx.fragment.app.FragmentStatePagerAdapter].
-     */
-    private var mSectionsPagerAdapter: SectionsPagerAdapter? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+        // Sets the theme to night mode if it has been selected by the user
+        if (PreferenceManager.getDefaultSharedPreferences(this)
+                .getBoolean(Constants.KEY_NIGHT_MODE_ACTIVATED, false)) {
+            setTheme(R.style.Theme_Bitsy_Dark_NoActionBar)
+        }
         setContentView(R.layout.activity_main)
 
-        // Create the adapter that will return a fragment for each of the three
+        setSupportActionBar(toolbar)
-        // primary sections of the activity.
-        mSectionsPagerAdapter = SectionsPagerAdapter(supportFragmentManager)
 
-        // Set up the ViewPager with the sections adapter.
+        val host: NavHostFragment = supportFragmentManager
-        viewPager.adapter = mSectionsPagerAdapter
+            .findFragmentById(R.id.navHostFragment) as NavHostFragment? ?: return
-        tabLayout.setupWithViewPager(viewPager)
 
-        // Force first tab to show BTS icon
+        // Set up Action Bar with Navigation's controller
-        tabLayout.getTabAt(0)?.setIcon(R.drawable.tab_home_selector)
+        val navController = host.navController
 
-        initBottomBar()
+        appBarConfiguration = AppBarConfiguration(navController.graph)
 
-        ivSettings.setOnClickListener {
+        // Sets up the ActionBar with the navigation controller so that it automatically responds to clicks on toolbar
-            val intent = Intent(this, SettingsActivity::class.java)
+        // menu items and shows the up navigation button on all fragments except home (Balances)
-            startActivity(intent)
+        setupActionBarWithNavController(navController, appBarConfiguration)
+
+        mHandler = Handler()
+
+        // When this runnable finishes it first verifies if the auto close feature is enabled and if it is then it
+        // closes the app, if not then it just restarts the Handler (timer)
+        mRunnable = Runnable {
+            if (PreferenceManager.getDefaultSharedPreferences(this)
+                    .getBoolean(Constants.KEY_AUTO_CLOSE_ACTIVATED, true))
+                finish()
+            else
+                restartHandler()
         }
-    }
+        startHandler()
-
-    private fun initBottomBar() {
-        // Show app version number in bottom bar
-        tvBuildVersion.text = String.format("v%s", BuildConfig.VERSION_NAME)
-
-        // Show block number in bottom bar
-        tvBlockNumber.text = getString(R.string.block_number_bottom_bar, "-----")
-
-        // TODO add listener to update block number
     }
 
     /**
-     * A [FragmentPagerAdapter] that returns a fragment corresponding to
+     * Restarts the Handler (timer) each time there is user's interaction
-     * one of the sections/tabs/pages.
      */
-    inner class SectionsPagerAdapter(fm: FragmentManager) : FragmentPagerAdapter(fm) {
+    override fun onUserInteraction() {
-
+        super.onUserInteraction()
-        override fun getItem(position: Int): Fragment {
+        restartHandler()
-            return when (position) {
-                0       -> BalancesFragment()
-                1       -> TransactionsFragment()
-                else    -> MerchantsFragment()
-            }
     }
 
-        override fun getCount(): Int {
+    /**
-            // Show 3 total pages.
+     * Stops and then restarts the Handler
-            return 3
+     */
+    private fun restartHandler() {
+        stopHandler()
+        startHandler()
     }
 
-        override fun getPageTitle(position: Int): CharSequence? {
+    private fun stopHandler() {
-            return when (position) {
+        mHandler.removeCallbacks(mRunnable)
-                0       -> ""
-                1       -> getString(R.string.title_transactions)
-                else    -> getString(R.string.title_merchants)
     }
+
+    private fun startHandler() {
+        mHandler.postDelayed(mRunnable, 3 * 60 * 1000) //for 3 minutes
     }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        // Have the NavigationUI look for an action or destination matching the menu
+        // item id and navigate there if found.
+        // Otherwise, bubble up to the parent.
+        return item.onNavDestinationSelected(findNavController(R.id.navHostFragment))
+                || super.onOptionsItemSelected(item)
+    }
+
+    override fun onSupportNavigateUp(): Boolean {
+        // Allows NavigationUI to support proper up navigation or the drawer layout
+        // drawer menu, depending on the situation
+        return findNavController(R.id.navHostFragment).navigateUp(appBarConfiguration)
+    }
+
+    override fun handleJsonRpcResponse(response: JsonRpcResponse<*>) {
+
+    }
+
+    /**
+     * Private method called whenever there's an update to the connection status
+     * @param connectionStatusUpdate  Connection status update.
+     */
+    override fun handleConnectionStatusUpdate(connectionStatusUpdate: ConnectionStatusUpdate) {
+
     }
 }

app/src/main/java/cy/agorise/bitsybitshareswallet/activities/SendTransactionActivity.kt

@@ -1,13 +0,0 @@
-package cy.agorise.bitsybitshareswallet.activities
-
-import androidx.appcompat.app.AppCompatActivity
-import android.os.Bundle
-import cy.agorise.bitsybitshareswallet.R
-
-class SendTransactionActivity : AppCompatActivity() {
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_send_transaction)
-    }
-}

app/src/main/java/cy/agorise/bitsybitshareswallet/activities/SettingsActivity.kt

@@ -1,65 +0,0 @@
-package cy.agorise.bitsybitshareswallet.activities
-
-import android.os.Bundle
-import android.preference.PreferenceManager
-import android.view.MenuItem
-import androidx.appcompat.app.AppCompatActivity
-import cy.agorise.bitsybitshareswallet.R
-import cy.agorise.bitsybitshareswallet.utils.Constants
-import kotlinx.android.synthetic.main.activity_settings.*
-
-/**
- * A simple activity for the user to select his preferences
- */
-class SettingsActivity : AppCompatActivity() {
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-
-        // TODO move the below to a BaseActivity to apply it to all activities
-        // Sets the theme to night mode if it has been selected by the user
-        if (PreferenceManager.getDefaultSharedPreferences(this)
-                .getBoolean(Constants.KEY_NIGHT_MODE_ACTIVATED, false)
-        ) {
-            setTheme(R.style.AppTheme_Dark)
-        }
-
-        setContentView(R.layout.activity_settings)
-
-        setupActionBar()
-
-        initNightModeSwitch()
-    }
-
-    /**
-     * Set up the [android.app.ActionBar], if the API is available.
-     */
-    private fun setupActionBar() {
-        supportActionBar?.setDisplayHomeAsUpEnabled(true)
-    }
-
-    private fun initNightModeSwitch() {
-        val nightModeOn = PreferenceManager.getDefaultSharedPreferences(this)
-            .getBoolean(Constants.KEY_NIGHT_MODE_ACTIVATED, false)
-
-        switchNightMode.isChecked = nightModeOn
-
-        switchNightMode.setOnCheckedChangeListener { buttonView, isChecked ->
-
-            PreferenceManager.getDefaultSharedPreferences(buttonView.context).edit()
-                    .putBoolean(Constants.KEY_NIGHT_MODE_ACTIVATED, isChecked).apply()
-
-            // Recreates the activity to apply the selected theme
-            this.recreate()
-        }
-    }
-
-    override fun onOptionsItemSelected(item: MenuItem): Boolean {
-        if (item.itemId == android.R.id.home) {
-            onBackPressed()
-            return true
-        }
-        return super.onOptionsItemSelected(item)
-    }
-
-}

app/src/main/java/cy/agorise/bitsybitshareswallet/activities/SplashActivity.kt

@@ -1,13 +1,16 @@
 package cy.agorise.bitsybitshareswallet.activities
 
-import androidx.appcompat.app.AppCompatActivity
+import android.content.Intent
 import android.os.Bundle
-import cy.agorise.bitsybitshareswallet.R
+import androidx.appcompat.app.AppCompatActivity
 
-class ReceiveTransactionActivity : AppCompatActivity() {
+class SplashActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_receive_transaction)
+
+        val intent = Intent(this, LicenseActivity::class.java)
+        startActivity(intent)
+        finish()
     }
 }

app/src/main/java/cy/agorise/bitsybitshareswallet/adapters/AssetsAdapter.kt

@@ -0,0 +1,40 @@
+package cy.agorise.bitsybitshareswallet.adapters
+
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ArrayAdapter
+import android.widget.TextView
+import cy.agorise.bitsybitshareswallet.database.entities.Asset
+
+class AssetsAdapter(context: Context, resource: Int, data: List<Asset>) :
+    ArrayAdapter<Asset>(context, resource, data) {
+
+    override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
+        var cv = convertView
+
+        if (cv == null) {
+            val inflater = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
+            cv = inflater.inflate(android.R.layout.simple_spinner_item, parent, false)
+        }
+
+        val text: TextView = cv!!.findViewById(android.R.id.text1)
+
+        val asset = getItem(position)
+        text.text = asset!!.symbol
+
+        return cv
+    }
+
+    override fun getDropDownView(position: Int, convertView: View?, parent: ViewGroup): View {
+        val inflater = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
+        val v = inflater.inflate(android.R.layout.simple_spinner_dropdown_item, parent, false)
+        val text: TextView = v.findViewById(android.R.id.text1)
+
+        val asset = getItem(position)
+        text.text = asset!!.symbol
+
+        return v
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/adapters/AutoSuggestAssetAdapter.kt

@@ -0,0 +1,24 @@
+package cy.agorise.bitsybitshareswallet.adapters
+
+import android.content.Context
+import android.widget.ArrayAdapter
+import cy.agorise.bitsybitshareswallet.database.entities.Asset
+
+class AutoSuggestAssetAdapter(context: Context, resource: Int):
+    ArrayAdapter<Asset>(context, resource) {
+
+    private var mAssets = ArrayList<Asset>()
+
+    fun setData(assets: List<Asset>) {
+        mAssets.clear()
+        mAssets.addAll(assets)
+    }
+
+    override fun getCount(): Int {
+        return mAssets.size
+    }
+
+    override fun getItem(position: Int): Asset? {
+        return mAssets[position]
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/adapters/BalancesAdapter.kt

@@ -0,0 +1,107 @@
+package cy.agorise.bitsybitshareswallet.adapters
+
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.SortedList
+import cy.agorise.bitsybitshareswallet.R
+import cy.agorise.bitsybitshareswallet.database.joins.BalanceDetail
+
+class BalancesAdapter(private val context: Context) :
+    RecyclerView.Adapter<BalancesAdapter.ViewHolder>() {
+
+    private val mComparator =
+        Comparator<BalanceDetail> { a, b -> a.symbol.compareTo(b.symbol) }
+
+    private val mSortedList =
+        SortedList<BalanceDetail>(BalanceDetail::class.java, object : SortedList.Callback<BalanceDetail>() {
+            override fun onInserted(position: Int, count: Int) {
+                notifyItemRangeInserted(position, count)
+            }
+
+            override fun onRemoved(position: Int, count: Int) {
+                notifyItemRangeRemoved(position, count)
+            }
+
+            override fun onMoved(fromPosition: Int, toPosition: Int) {
+                notifyItemMoved(fromPosition, toPosition)
+            }
+
+            override fun onChanged(position: Int, count: Int) {
+                notifyItemRangeChanged(position, count)
+            }
+
+            override fun compare(a: BalanceDetail, b: BalanceDetail): Int {
+                return mComparator.compare(a, b)
+            }
+
+            override fun areContentsTheSame(oldItem: BalanceDetail, newItem: BalanceDetail): Boolean {
+                return oldItem == newItem
+            }
+
+            override fun areItemsTheSame(item1: BalanceDetail, item2: BalanceDetail): Boolean {
+                return item1.id == item2.id
+            }
+        })
+
+    inner class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        val tvSymbol: TextView = itemView.findViewById(R.id.tvSymbol)
+        val tvAmount: TextView = itemView.findViewById(R.id.tvAmount)
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BalancesAdapter.ViewHolder {
+        val inflater = LayoutInflater.from(context)
+
+        val balanceView = inflater.inflate(R.layout.item_balance, parent, false)
+
+        return ViewHolder(balanceView)
+    }
+
+    override fun onBindViewHolder(viewHolder: ViewHolder, position: Int) {
+        val balance = mSortedList.get(position)
+
+        viewHolder.tvSymbol.text = balance.symbol
+
+        val amount = balance.amount.toDouble() / Math.pow(10.0, balance.precision.toDouble())
+        viewHolder.tvAmount.text = String.format("%." + Math.min(balance.precision, 8) + "f", amount)
+    }
+
+    fun add(balance: BalanceDetail) {
+        mSortedList.add(balance)
+    }
+
+    fun remove(balance: BalanceDetail) {
+        mSortedList.remove(balance)
+    }
+
+    fun add(balances: List<BalanceDetail>) {
+        mSortedList.addAll(balances)
+    }
+
+    fun remove(balances: List<BalanceDetail>) {
+        mSortedList.beginBatchedUpdates()
+        for (balance in balances) {
+            mSortedList.remove(balance)
+        }
+        mSortedList.endBatchedUpdates()
+    }
+
+    fun replaceAll(balances: List<BalanceDetail>) {
+        mSortedList.beginBatchedUpdates()
+        for (i in mSortedList.size() - 1 downTo 0) {
+            val balance = mSortedList.get(i)
+            if (!balances.contains(balance)) {
+                mSortedList.remove(balance)
+            }
+        }
+        mSortedList.addAll(balances)
+        mSortedList.endBatchedUpdates()
+    }
+
+    override fun getItemCount(): Int {
+        return mSortedList.size()
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/adapters/BalancesDetailsAdapter.kt

@@ -0,0 +1,42 @@
+package cy.agorise.bitsybitshareswallet.adapters
+
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ArrayAdapter
+import android.widget.TextView
+import cy.agorise.bitsybitshareswallet.database.joins.BalanceDetail
+
+
+
+class BalancesDetailsAdapter(context: Context, resource: Int, data: List<BalanceDetail>) :
+    ArrayAdapter<BalanceDetail>(context, resource, data) {
+
+    override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
+        var cv = convertView
+
+        if (cv == null) {
+            val inflater = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
+            cv = inflater.inflate(android.R.layout.simple_spinner_item, parent, false)
+        }
+
+        val text: TextView = cv!!.findViewById(android.R.id.text1)
+
+        val balanceDetail = getItem(position)
+        text.text = balanceDetail!!.symbol
+
+        return cv
+    }
+
+    override fun getDropDownView(position: Int, convertView: View?, parent: ViewGroup): View {
+        val inflater = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
+        val v = inflater.inflate(android.R.layout.simple_spinner_dropdown_item, parent, false)
+        val text: TextView = v.findViewById(android.R.id.text1)
+
+        val balanceDetail = getItem(position)
+        text.text = balanceDetail!!.symbol
+
+        return v
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/adapters/FullNodesAdapter.kt

@@ -0,0 +1,140 @@
+package cy.agorise.bitsybitshareswallet.adapters
+
+import android.content.Context
+import android.graphics.Color
+import android.graphics.Typeface
+import androidx.core.content.ContextCompat
+import androidx.recyclerview.widget.SortedList
+import androidx.recyclerview.widget.RecyclerView
+import android.text.SpannableStringBuilder
+import android.text.Spanned
+import android.text.style.ForegroundColorSpan
+import android.text.style.StyleSpan
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import cy.agorise.bitsybitshareswallet.R
+import cy.agorise.graphenej.network.FullNode
+import java.util.*
+
+
+/**
+ * Adapter used to populate the elements of the Bitshares nodes dialog in order to show a list of
+ * nodes with their latency.
+ */
+class FullNodesAdapter(private val context: Context) : RecyclerView.Adapter<FullNodesAdapter.ViewHolder>() {
+    val TAG: String = this.javaClass.name
+
+    private val mComparator =
+        Comparator<FullNode> { a, b -> java.lang.Double.compare(a.latencyValue, b.latencyValue) }
+
+    inner class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        val tvNodeName: TextView = itemView.findViewById(R.id.tvNodeName)
+        val ivNodeStatus: ImageView = itemView.findViewById(R.id.ivNodeStatus)
+    }
+
+    private val mSortedList = SortedList(FullNode::class.java, object : SortedList.Callback<FullNode>() {
+        override fun onInserted(position: Int, count: Int) {
+            notifyItemRangeInserted(position, count)
+        }
+
+        override fun onRemoved(position: Int, count: Int) {
+            notifyItemRangeRemoved(position, count)
+        }
+
+        override fun onMoved(fromPosition: Int, toPosition: Int) {
+            notifyItemMoved(fromPosition, toPosition)
+        }
+
+        override fun onChanged(position: Int, count: Int) {
+            notifyItemRangeChanged(position, count)
+        }
+
+        override fun compare(a: FullNode, b: FullNode): Int {
+            return mComparator.compare(a, b)
+        }
+
+        override fun areContentsTheSame(oldItem: FullNode, newItem: FullNode): Boolean {
+            return oldItem.latencyValue == newItem.latencyValue
+        }
+
+        override fun areItemsTheSame(item1: FullNode, item2: FullNode): Boolean {
+            return item1.url == item2.url
+        }
+    })
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): FullNodesAdapter.ViewHolder {
+        val inflater = LayoutInflater.from(context)
+
+        val transactionView = inflater.inflate(R.layout.item_node, parent, false)
+
+        return ViewHolder(transactionView)
+    }
+
+    override fun onBindViewHolder(viewHolder: ViewHolder, position: Int) {
+        val fullNode = mSortedList[position]
+
+        // Show the green check mark before the node name if that node is the one being used
+        if (fullNode.isConnected)
+            viewHolder.ivNodeStatus.setImageResource(R.drawable.ic_connected)
+        else
+            viewHolder.ivNodeStatus.setImageDrawable(null)
+
+        val latency = fullNode.latencyValue
+
+        // Select correct color span according to the latency value
+        val colorSpan = when {
+            latency < 400 -> ForegroundColorSpan(ContextCompat.getColor(context, R.color.ppGreen))
+            latency < 800 -> ForegroundColorSpan(Color.rgb(255,136,0)) // Holo orange
+            else -> ForegroundColorSpan(Color.rgb(204,0,0)) // Holo red
+        }
+
+        // Create a string with the latency number colored according to their amount
+        val ssb = SpannableStringBuilder()
+        ssb.append(fullNode.url.replace("wss://", ""), StyleSpan(Typeface.BOLD), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
+        ssb.append(" (")
+
+        // 2000 ms is the timeout of the websocket used to calculate the latency, therefore if the
+        // received latency is greater than such value we can assume the node was not reachable.
+        val ms = if(latency < 2000) "%.0f ms".format(latency) else "??"
+
+        ssb.append(ms, colorSpan, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
+        ssb.append(")")
+
+        viewHolder.tvNodeName.text = ssb
+    }
+
+    /**
+     * Functions that adds/updates a FullNode to the SortedList
+     */
+    fun add(fullNode: FullNode) {
+        // Remove the old instance of the FullNode before adding a new one. My understanding is that
+        // the sorted list should be able to automatically find repeated elements and update them
+        // instead of adding duplicates but it wasn't working so I opted for manually removing old
+        // instances of FullNodes before adding the updated ones.
+        var removed = 0
+        for (i in 0 until mSortedList.size())
+            if (mSortedList[i-removed].url == (fullNode.url))
+                mSortedList.removeItemAt(i-removed++)
+
+        mSortedList.add(fullNode)
+    }
+
+    /**
+     * Function that adds a whole list of nodes to the SortedList. It should only be used at the
+     * moment of populating the SortedList for the first time.
+     */
+    fun add(fullNodes: List<FullNode>) {
+        mSortedList.addAll(fullNodes)
+    }
+
+    fun remove(fullNode: FullNode) {
+        mSortedList.remove(fullNode)
+    }
+
+    override fun getItemCount(): Int {
+        return mSortedList.size()
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/adapters/TransfersDetailsAdapter.kt

@@ -0,0 +1,173 @@
+package cy.agorise.bitsybitshareswallet.adapters
+
+import android.content.Context
+import android.preference.PreferenceManager
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.LinearLayout
+import android.widget.TextView
+import androidx.constraintlayout.widget.ConstraintLayout
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.SortedList
+import cy.agorise.bitsybitshareswallet.R
+import cy.agorise.bitsybitshareswallet.database.joins.TransferDetail
+import cy.agorise.bitsybitshareswallet.utils.Constants
+import java.math.RoundingMode
+import java.text.DecimalFormat
+import java.text.DecimalFormatSymbols
+import java.text.SimpleDateFormat
+import java.util.*
+
+class TransfersDetailsAdapter(private val context: Context) :
+    RecyclerView.Adapter<TransfersDetailsAdapter.ViewHolder>() {
+
+    val userId = PreferenceManager.getDefaultSharedPreferences(context)
+        .getString(Constants.KEY_CURRENT_ACCOUNT_ID, "")!!
+
+    private val mComparator =
+        Comparator<TransferDetail> { a, b -> b.id.compareTo(a.id) }
+
+    private val mSortedList =
+        SortedList<TransferDetail>(TransferDetail::class.java, object : SortedList.Callback<TransferDetail>() {
+            override fun onInserted(position: Int, count: Int) {
+                notifyItemRangeInserted(position, count)
+            }
+
+            override fun onRemoved(position: Int, count: Int) {
+                notifyItemRangeRemoved(position, count)
+            }
+
+            override fun onMoved(fromPosition: Int, toPosition: Int) {
+                notifyItemMoved(fromPosition, toPosition)
+            }
+
+            override fun onChanged(position: Int, count: Int) {
+                notifyItemRangeChanged(position, count)
+            }
+
+            override fun compare(a: TransferDetail, b: TransferDetail): Int {
+                return mComparator.compare(a, b)
+            }
+
+            override fun areContentsTheSame(oldItem: TransferDetail, newItem: TransferDetail): Boolean {
+                return oldItem == newItem
+            }
+
+            override fun areItemsTheSame(item1: TransferDetail, item2: TransferDetail): Boolean {
+                return item1.id == item2.id
+            }
+        })
+
+    private val dateFormat: SimpleDateFormat
+    private val timeFormat: SimpleDateFormat
+
+    init {
+        val locale = context.resources.configuration.locale
+        dateFormat = SimpleDateFormat("dd MMM", locale)
+        timeFormat = SimpleDateFormat("HH:mm:ss z", locale)
+    }
+
+    inner class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        val rootView: ConstraintLayout  = itemView.findViewById(R.id.rootView)
+        val vPaymentDirection: View     = itemView.findViewById(R.id.vPaymentDirection)
+        val tvFrom: TextView            = itemView.findViewById(R.id.tvFrom)
+        val ivDirectionArrow: ImageView = itemView.findViewById(R.id.ivDirectionArrow)
+        val tvTo: TextView              = itemView.findViewById(R.id.tvTo)
+        val llMemo: LinearLayout        = itemView.findViewById(R.id.llMemo)
+        val tvMemo: TextView            = itemView.findViewById(R.id.tvMemo)
+        val tvDate: TextView            = itemView.findViewById(R.id.tvDate)
+        val tvTime: TextView            = itemView.findViewById(R.id.tvTime)
+        val tvCryptoAmount: TextView    = itemView.findViewById(R.id.tvCryptoAmount)
+        val tvFiatEquivalent: TextView  = itemView.findViewById(R.id.tvFiatEquivalent)
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): TransfersDetailsAdapter.ViewHolder {
+        val inflater = LayoutInflater.from(context)
+
+        val transactionView = inflater.inflate(R.layout.item_transaction, parent, false)
+
+        return ViewHolder(transactionView)
+    }
+
+    override fun onBindViewHolder(viewHolder: ViewHolder, position: Int) {
+        val transferDetail = mSortedList.get(position)
+
+        viewHolder.vPaymentDirection.setBackgroundColor(context.resources.getColor(
+            if(transferDetail.direction) R.color.colorReceive else R.color.colorSend
+        ))
+
+        viewHolder.tvFrom.text = transferDetail.from ?: ""
+        viewHolder.tvTo.text = transferDetail.to ?: ""
+
+        // Shows memo if available
+        val memo = transferDetail.memo
+        if (memo == "") {
+            viewHolder.tvMemo.text = ""
+            viewHolder.llMemo.visibility = View.GONE
+        } else {
+            viewHolder.tvMemo.text = memo
+            viewHolder.llMemo.visibility = View.VISIBLE
+        }
+
+        // Format date and time
+        val date = Date(transferDetail.date * 1000)
+
+        viewHolder.tvDate.text = dateFormat.format(date)
+        viewHolder.tvTime.text = timeFormat.format(date)
+
+        // Show the crypto amount correctly formatted
+        // TODO lift the DecimalFormat declaration to other place to make things more efficient
+        val df = DecimalFormat("####."+("#".repeat(transferDetail.cryptoPrecision)))
+        df.roundingMode = RoundingMode.CEILING
+        df.decimalFormatSymbols = DecimalFormatSymbols(Locale.getDefault())
+
+        val amount = transferDetail.cryptoAmount.toDouble() /
+                Math.pow(10.toDouble(), transferDetail.cryptoPrecision.toDouble())
+        val cryptoAmount = "${df.format(amount)} ${transferDetail.cryptoSymbol}"
+        viewHolder.tvCryptoAmount.text = cryptoAmount
+
+        viewHolder.tvFiatEquivalent.text = "$4119.75"
+
+        viewHolder.ivDirectionArrow.setImageDrawable(context.getDrawable(
+            if(transferDetail.direction) R.drawable.ic_arrow_receive else R.drawable.ic_arrow_send
+        ))
+    }
+
+    fun add(transferDetail: TransferDetail) {
+        mSortedList.add(transferDetail)
+    }
+
+    fun remove(transferDetail: TransferDetail) {
+        mSortedList.remove(transferDetail)
+    }
+
+    fun add(transfersDetails: List<TransferDetail>) {
+        mSortedList.addAll(transfersDetails)
+    }
+
+    fun remove(transfersDetails: List<TransferDetail>) {
+        mSortedList.beginBatchedUpdates()
+        for (transferDetail in transfersDetails) {
+            mSortedList.remove(transferDetail)
+        }
+        mSortedList.endBatchedUpdates()
+    }
+
+    fun replaceAll(transfersDetails: List<TransferDetail>) {
+        mSortedList.beginBatchedUpdates()
+        for (i in mSortedList.size() - 1 downTo 0) {
+            val transferDetail = mSortedList.get(i)
+            if (!transfersDetails.contains(transferDetail)) {
+                mSortedList.remove(transferDetail)
+            }
+        }
+        mSortedList.addAll(transfersDetails)
+        mSortedList.endBatchedUpdates()
+    }
+
+    override fun getItemCount(): Int {
+        return mSortedList.size()
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/database/BitsyDatabase.kt

@@ -0,0 +1,52 @@
+package cy.agorise.bitsybitshareswallet.database
+
+import android.content.Context
+import androidx.room.Database
+import androidx.room.Room
+import androidx.room.RoomDatabase
+import cy.agorise.bitsybitshareswallet.database.daos.*
+import cy.agorise.bitsybitshareswallet.database.entities.*
+import cy.agorise.bitsybitshareswallet.database.joins.BalanceDetailDao
+import cy.agorise.bitsybitshareswallet.database.joins.TransferDetailDao
+
+@Database(entities = [
+        Asset::class,
+        Authority::class,
+        Balance::class,
+        EquivalentValue::class,
+        Transfer::class,
+        UserAccount::class
+    ],
+    version = 1, exportSchema = false)
+abstract class BitsyDatabase : RoomDatabase() {
+
+    abstract fun assetDao(): AssetDao
+    abstract fun authorityDao(): AuthorityDao
+    abstract fun balanceDao(): BalanceDao
+    abstract fun equivalentValueDao(): EquivalentValueDao
+    abstract fun transferDao(): TransferDao
+    abstract fun userAccountDao(): UserAccountDao
+    abstract fun balanceDetailDao(): BalanceDetailDao
+    abstract fun transferDetailDao(): TransferDetailDao
+
+    companion object {
+
+        // To make sure there is always only one instance of the database open
+        @Volatile
+        private var INSTANCE: BitsyDatabase? = null
+
+        internal fun getDatabase(context: Context): BitsyDatabase? {
+            if (INSTANCE == null) {
+                synchronized(BitsyDatabase::class.java) {
+                    INSTANCE = Room.databaseBuilder(
+                        context.applicationContext,
+                        BitsyDatabase::class.java, "BiTSyWallet.db"
+                    )
+                        .build()
+                }
+            }
+
+            return INSTANCE
+        }
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/database/daos/AssetDao.kt

@@ -0,0 +1,20 @@
+package cy.agorise.bitsybitshareswallet.database.daos
+
+import androidx.lifecycle.LiveData
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import cy.agorise.bitsybitshareswallet.database.entities.Asset
+
+@Dao
+interface AssetDao {
+    @Insert
+    fun insert(asset: Asset)
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun insertAll(assets: List<Asset>)
+
+    @Query("SELECT * FROM assets")
+    fun getAll(): LiveData<List<Asset>>
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/database/daos/AuthorityDao.kt

@@ -0,0 +1,23 @@
+package cy.agorise.bitsybitshareswallet.database.daos
+
+import androidx.lifecycle.LiveData
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.Query
+import cy.agorise.bitsybitshareswallet.database.entities.Authority
+import io.reactivex.Single
+
+@Dao
+interface AuthorityDao {
+    @Insert
+    fun insert(authority: Authority)
+
+    @Query("SELECT * FROM authorities WHERE user_id=:userId LIMIT 1")
+    fun get(userId: String): Single<Authority>
+
+    @Query("SELECT * FROM authorities")
+    fun getAll(): LiveData<List<Authority>>
+
+    @Query("SELECT encrypted_wif FROM authorities WHERE user_id=:userId AND authority_type=:authorityType")
+    fun getWIF(userId: String, authorityType: Int): Single<String>
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/database/daos/BalanceDao.kt

@@ -0,0 +1,24 @@
+package cy.agorise.bitsybitshareswallet.database.daos
+
+import androidx.lifecycle.LiveData
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import cy.agorise.bitsybitshareswallet.database.entities.Balance
+
+@Dao
+interface BalanceDao {
+    @Insert
+    fun insert(balance: Balance)
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun insertAll(balances: List<Balance>)
+
+    @Query("SELECT * FROM balances")
+    fun getAll(): LiveData<List<Balance>>
+
+    // TODO not sure if this is the best place for this query as it involves two entities
+    @Query("SELECT DISTINCT asset_id FROM balances WHERE asset_id NOT IN (SELECT id FROM assets)")
+    fun getMissingAssetIds(): LiveData<List<String>>
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/database/daos/EquivalentValueDao.kt

@@ -0,0 +1,16 @@
+package cy.agorise.bitsybitshareswallet.database.daos
+
+import androidx.lifecycle.LiveData
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.Query
+import cy.agorise.bitsybitshareswallet.database.entities.EquivalentValue
+
+@Dao
+interface EquivalentValueDao {
+    @Insert
+    fun insert(equivalentValue: EquivalentValue)
+
+    @Query("SELECT * FROM equivalent_values")
+    fun getAllEquivalentValues(): LiveData<List<EquivalentValue>>
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/database/daos/TransferDao.kt

@@ -0,0 +1,34 @@
+package cy.agorise.bitsybitshareswallet.database.daos
+
+import androidx.lifecycle.LiveData
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import cy.agorise.bitsybitshareswallet.database.entities.Transfer
+import io.reactivex.Single
+
+@Dao
+interface TransferDao {
+    @Insert
+    fun insert(transfer: Transfer)
+
+    // TODO find a way to return number of added rows
+    @Insert(onConflict = OnConflictStrategy.IGNORE)
+    fun insertAll(transfers: List<Transfer>)
+
+    @Query("UPDATE transfers SET timestamp=:timestamp WHERE block_number=:blockNumber")
+    fun setBlockTime(blockNumber: Long, timestamp: Long)
+
+    @Query("SELECT * FROM transfers")
+    fun getAll(): LiveData<List<Transfer>>
+
+    @Query("SELECT COUNT(*) FROM transfers")
+    fun getCount(): Single<Int>
+
+    @Query("SELECT block_number FROM transfers WHERE timestamp='0' LIMIT 1")
+    fun getTransferBlockNumberWithMissingTime(): LiveData<Long>
+
+    @Query("DELETE FROM transfers")
+    fun deleteAll()
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/database/daos/UserAccountDao.kt

@@ -0,0 +1,27 @@
+package cy.agorise.bitsybitshareswallet.database.daos
+
+import androidx.lifecycle.LiveData
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import cy.agorise.bitsybitshareswallet.database.entities.UserAccount
+
+@Dao
+interface UserAccountDao {
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun insert(userAccount: UserAccount)
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun insertAll(userAccounts: List<UserAccount>)
+
+    @Query("SELECT * FROM user_accounts WHERE user_accounts.id = :id")
+    fun getUserAccount(id: String): LiveData<UserAccount>
+
+    @Query("SELECT * FROM user_accounts")
+    fun getAll(): LiveData<List<UserAccount>>
+
+    // TODO not sure if this is the best place for this query as it involves two entities
+    @Query("SELECT DISTINCT destination FROM transfers WHERE destination NOT IN (SELECT id FROM user_accounts) UNION SELECT DISTINCT source FROM transfers WHERE source NOT IN (SELECT id FROM user_accounts)")
+    fun getMissingAccountIds(): LiveData<List<String>>
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/database/entities/Asset.kt

@@ -0,0 +1,19 @@
+package cy.agorise.bitsybitshareswallet.database.entities
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "assets")
+data class Asset(
+    @PrimaryKey
+    @ColumnInfo(name = "id") val id: String,
+    @ColumnInfo(name = "symbol") val symbol: String,
+    @ColumnInfo(name = "precision") val precision: Int,
+    @ColumnInfo(name = "description") val description: String,
+    @ColumnInfo(name = "bit_asset_id") val bitAssetId: String
+) {
+    override fun toString(): String {
+        return symbol
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/database/entities/Authority.kt

@@ -0,0 +1,16 @@
+package cy.agorise.bitsybitshareswallet.database.entities
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "authorities")
+data class Authority (
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo(name = "id") val id: Long,
+    @ColumnInfo(name = "user_id") val userId: String,
+    @ColumnInfo(name = "authority_type") val authorityType: Int,
+    @ColumnInfo(name = "encrypted_wif") val encryptedWIF: String,
+    @ColumnInfo(name = "encrypted_brain_key") val encryptedBrainKey: String,
+    @ColumnInfo(name = "encrypted_sequence_number") val encryptedSequenceNumber: String
+)

app/src/main/java/cy/agorise/bitsybitshareswallet/database/entities/Balance.kt

@@ -0,0 +1,13 @@
+package cy.agorise.bitsybitshareswallet.database.entities
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "balances")
+data class Balance(
+    @PrimaryKey
+    @ColumnInfo(name = "asset_id") val assetId: String, // TODO should be foreign key?
+    @ColumnInfo(name = "asset_amount") val assetAmount: Long,
+    @ColumnInfo(name = "last_update") val lastUpdate: Long
+)

app/src/main/java/cy/agorise/bitsybitshareswallet/database/entities/EquivalentValue.kt

@@ -0,0 +1,25 @@
+package cy.agorise.bitsybitshareswallet.database.entities
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.ForeignKey
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "equivalent_values",foreignKeys =
+    [ForeignKey(
+        entity = Transfer::class,
+        parentColumns = ["id"],
+        childColumns = ["transfer_id"]
+    ), ForeignKey(
+        entity = Asset::class,
+        parentColumns = ["id"],
+        childColumns = ["asset_id"]
+    )]
+)
+data class EquivalentValue (
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo(name = "id") val id: Long,
+    @ColumnInfo(name = "transfer_id") val transferId: String,
+    @ColumnInfo(name = "value") val value: Long,
+    @ColumnInfo(name = "asset_id") val assetId: String
+)

app/src/main/java/cy/agorise/bitsybitshareswallet/database/entities/Transfer.kt

@@ -0,0 +1,20 @@
+package cy.agorise.bitsybitshareswallet.database.entities
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "transfers")
+data class Transfer (
+    @PrimaryKey
+    @ColumnInfo(name = "id") val id: String,
+    @ColumnInfo(name = "block_number") val blockNumber: Long,
+    @ColumnInfo(name = "timestamp") val timestamp: Long,
+    @ColumnInfo(name = "fee_amount") val feeAmount: Long,
+    @ColumnInfo(name = "fee_asset_id") val feeAssetId: String, // TODO should be foreign key to Asset
+    @ColumnInfo(name = "source") val source: String, // TODO should be foreign key to UserAccount
+    @ColumnInfo(name = "destination") val destination: String, // TODO should be foreign key to UserAccount
+    @ColumnInfo(name = "transfer_amount") val transferAmount: Long,
+    @ColumnInfo(name = "transfer_asset_id") val transferAssetId: String, // TODO should be foreign key to Asset
+    @ColumnInfo(name = "memo") val memo: String
+)

app/src/main/java/cy/agorise/bitsybitshareswallet/database/entities/UserAccount.kt

@@ -0,0 +1,13 @@
+package cy.agorise.bitsybitshareswallet.database.entities
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "user_accounts")
+data class UserAccount (
+    @PrimaryKey
+    @ColumnInfo(name = "id") val id: String,
+    @ColumnInfo(name = "name") val name: String,
+    @ColumnInfo(name = "is_ltm") val isLtm: Boolean
+)

app/src/main/java/cy/agorise/bitsybitshareswallet/database/joins/BalanceDetail.kt

@@ -0,0 +1,8 @@
+package cy.agorise.bitsybitshareswallet.database.joins
+
+data class BalanceDetail(
+    val id: String,
+    val amount: Long,
+    val precision: Int,
+    val symbol: String
+)

app/src/main/java/cy/agorise/bitsybitshareswallet/database/joins/BalanceDetailDao.kt

@@ -0,0 +1,12 @@
+package cy.agorise.bitsybitshareswallet.database.joins
+
+import androidx.lifecycle.LiveData
+import androidx.room.Dao
+import androidx.room.Query
+
+@Dao
+interface BalanceDetailDao {
+    @Query("SELECT assets.id AS id, balances.asset_amount AS amount, assets.precision, assets.symbol " +
+            "FROM balances INNER JOIN assets on balances.asset_id = assets.id")
+    fun getAll(): LiveData<List<BalanceDetail>>
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/database/joins/TransferDetail.kt

@@ -0,0 +1,15 @@
+package cy.agorise.bitsybitshareswallet.database.joins
+
+data class TransferDetail(
+    val id: String,
+    val from: String?,
+    val to: String?,
+    val direction: Boolean, // True -> Received, False -> Sent
+    val memo: String,
+    val date: Long,
+    val cryptoAmount: Long,
+    val cryptoPrecision: Int,
+    val cryptoSymbol: String
+//    val fiatAmount: Long,
+//    val fiatCurrency: String
+)

app/src/main/java/cy/agorise/bitsybitshareswallet/database/joins/TransferDetailDao.kt

@@ -0,0 +1,12 @@
+package cy.agorise.bitsybitshareswallet.database.joins
+
+import androidx.lifecycle.LiveData
+import androidx.room.Dao
+import androidx.room.Query
+
+@Dao
+interface TransferDetailDao {
+
+    @Query("SELECT transfers.id, (SELECT name FROM user_accounts WHERE user_accounts.id=transfers.source) AS `from`, (SELECT name FROM user_accounts WHERE user_accounts.id=transfers.destination) AS `to`, (CASE WHEN destination=:userId THEN 1 ELSE 0 END) AS `direction`, transfers.memo AS `memo`, transfers.timestamp AS `date`, transfers.transfer_amount AS `cryptoAmount`, assets.precision AS `cryptoPrecision`, assets.symbol AS cryptoSymbol FROM transfers INNER JOIN assets WHERE transfers.transfer_asset_id = assets.id")
+    fun getAll(userId: String): LiveData<List<TransferDetail>>
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/BalancesFragment.kt

@@ -1,52 +1,55 @@
 package cy.agorise.bitsybitshareswallet.fragments
 
-import androidx.lifecycle.ViewModelProviders
-import android.content.Intent
 import android.os.Bundle
-import androidx.fragment.app.Fragment
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProviders
+import androidx.recyclerview.widget.DividerItemDecoration
+import androidx.recyclerview.widget.LinearLayoutManager
 import cy.agorise.bitsybitshareswallet.R
-import cy.agorise.bitsybitshareswallet.activities.ReceiveTransactionActivity
+import cy.agorise.bitsybitshareswallet.adapters.BalancesAdapter
-import cy.agorise.bitsybitshareswallet.activities.SendTransactionActivity
+import cy.agorise.bitsybitshareswallet.database.joins.BalanceDetail
-import cy.agorise.bitsybitshareswallet.viewmodels.BalancesViewModel
+import cy.agorise.bitsybitshareswallet.viewmodels.BalanceDetailViewModel
 import kotlinx.android.synthetic.main.fragment_balances.*
 
-class BalancesFragment : Fragment() {
+class BalancesFragment: Fragment() {
+    private val TAG = this.javaClass.simpleName
 
-    companion object {
+    private lateinit var mBalanceDetailViewModel: BalanceDetailViewModel
-        fun newInstance() = BalancesFragment()
-    }
-
-    private lateinit var viewModel: BalancesViewModel
 
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        return inflater.inflate(R.layout.fragment_balances, container, false)
+        setHasOptionsMenu(true)
-    }
 
-    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        return inflater.inflate(R.layout.fragment_balances, container, false)
-        super.onActivityCreated(savedInstanceState)
-        viewModel = ViewModelProviders.of(this).get(BalancesViewModel::class.java)
-        // TODO: Use the ViewModel
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
-        btnReceive.setOnClickListener {
+        // Configure BalanceDetailViewModel to show the current balances
-            val intent = Intent(view.context, ReceiveTransactionActivity::class.java)
+        mBalanceDetailViewModel = ViewModelProviders.of(this).get(BalanceDetailViewModel::class.java)
-            startActivity(intent)
+
+        val balancesAdapter = BalancesAdapter(context!!)
+        rvBalances.adapter = balancesAdapter
+        rvBalances.layoutManager = LinearLayoutManager(context!!)
+        rvBalances.addItemDecoration(DividerItemDecoration(context!!, DividerItemDecoration.VERTICAL))
+
+        mBalanceDetailViewModel.getAll().observe(this, Observer<List<BalanceDetail>> { balancesDetails ->
+            balancesAdapter.replaceAll(balancesDetails)
+        })
     }
 
-        btnSend.setOnClickListener {
+    override fun setUserVisibleHint(isVisibleToUser: Boolean) {
-            val intent = Intent(view.context, SendTransactionActivity::class.java)
+        super.setUserVisibleHint(isVisibleToUser)
-            startActivity(intent)
+        if (isVisibleToUser) {
+            // TODO find a better way to recreate the fragment, that does it only when the theme has been changed
+            fragmentManager!!.beginTransaction().detach(this).attach(this).commit()
         }
     }
-
 }

app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/FilterOptionsDialog.kt

@@ -0,0 +1,316 @@
+package cy.agorise.bitsybitshareswallet.fragments
+
+
+import android.app.Dialog
+import android.content.res.Resources
+import android.os.Bundle
+import android.os.Handler
+import android.os.Message
+import androidx.fragment.app.DialogFragment
+import android.widget.*
+import androidx.appcompat.app.AlertDialog
+import androidx.fragment.app.Fragment
+import cy.agorise.bitsybitshareswallet.R
+import java.text.SimpleDateFormat
+import java.util.*
+import kotlin.ClassCastException
+
+
+/**
+ * Creates a Dialog that communicates with {@link TransactionsActivity} to give it parameters about
+ * how to filter the list of Transactions
+ */
+class FilterOptionsDialog : DialogFragment() {
+
+    // Widgets TODO use android-kotlin-extensions {onViewCreated}
+    lateinit var rbTransactionAll: RadioButton
+    lateinit var rbTransactionSent: RadioButton
+    lateinit var rbTransactionReceived: RadioButton
+    lateinit var cbDateRange: CheckBox
+    lateinit var llDateRange: LinearLayout
+    lateinit var tvStartDate: TextView
+    lateinit var tvEndDate: TextView
+    lateinit var cbCryptocurrency: CheckBox
+    lateinit var sCryptocurrency: Spinner
+    lateinit var cbFiatAmount: CheckBox
+    lateinit var llFiatAmount: LinearLayout
+//    lateinit var etFromFiatAmount: CurrencyEditText
+//    lateinit var etToFiatAmount: CurrencyEditText
+
+    private var mCallback: OnFilterOptionsSelectedListener? = null
+
+    private var mDatePickerHandler: DatePickerHandler? = null
+
+    private var dateFormat: SimpleDateFormat = SimpleDateFormat("d/MMM/yyyy",
+        Resources.getSystem().configuration.locale)
+
+    private var startDate: Long = 0
+    private var endDate: Long = 0
+
+//    /**
+//     * Variable used to keep track of the current user's currency
+//     */
+//    private val mUserCurrency = RuntimeData.EXTERNAL_CURRENCY
+
+    companion object {
+
+        const val KEY_FILTER_TRANSACTION_DIRECTION = "key_filter_transaction_direction"
+        const val KEY_FILTER_DATE_RANGE_ALL = "key_filter_date_range_all"
+        const val KEY_FILTER_START_DATE = "key_filter_start_date"
+        const val KEY_FILTER_END_DATE = "key_filter_end_date"
+        const val KEY_FILTER_CRYPTOCURRENCY_ALL = "key_filter_cryptocurrency_all"
+        const val KEY_FILTER_CRYPTOCURRENCY = "key_filter_cryptocurrency"
+        const val KEY_FILTER_FIAT_AMOUNT_ALL = "key_filter_fiat_amount_all"
+        const val KEY_FILTER_FROM_FIAT_AMOUNT = "filter_from_fiat_amount"
+        const val KEY_FILTER_TO_FIAT_AMOUNT = "filter_to_fiat_amount"
+
+        const val KEY_TIMESTAMP = "key_timestamp"
+
+        const val START_DATE_PICKER = 0
+        const val END_DATE_PICKER = 1
+
+        fun newInstance(filterTransactionsDirection: Int, filterDateRangeAll: Boolean,
+                        filterStartDate: Long, filterEndDate: Long, filterCryptocurrencyAll: Boolean,
+                        filterCryptocurrency: String, filterFiatAmountAll: Boolean,
+                        filterFromFiatAmount: Long, filterToFiatAmount: Long): FilterOptionsDialog {
+            val frag = FilterOptionsDialog()
+            val args = Bundle()
+            args.putInt(KEY_FILTER_TRANSACTION_DIRECTION, filterTransactionsDirection)
+            args.putBoolean(KEY_FILTER_DATE_RANGE_ALL, filterDateRangeAll)
+            args.putLong(KEY_FILTER_START_DATE, filterStartDate)
+            args.putLong(KEY_FILTER_END_DATE, filterEndDate)
+            args.putBoolean(KEY_FILTER_CRYPTOCURRENCY_ALL, filterCryptocurrencyAll)
+            args.putString(KEY_FILTER_CRYPTOCURRENCY, filterCryptocurrency)
+            args.putBoolean(KEY_FILTER_FIAT_AMOUNT_ALL, filterFiatAmountAll)
+            args.putLong(KEY_FILTER_FROM_FIAT_AMOUNT, filterFromFiatAmount)
+            args.putLong(KEY_FILTER_TO_FIAT_AMOUNT, filterToFiatAmount)
+            frag.arguments = args
+            return frag
+        }
+
+    }
+
+    /**
+     * DatePicker message handler.
+     */
+    inner class DatePickerHandler : Handler() {
+
+        override fun handleMessage(msg: Message) {
+            super.handleMessage(msg)
+            val bundle = msg.data
+            val timestamp = bundle.get(KEY_TIMESTAMP) as Long
+            //Log.d(TAG, "timestamp: $timestamp")
+            when (msg.arg1) {
+                START_DATE_PICKER -> {
+                    startDate = timestamp
+
+                    updateDateTextViews()
+                }
+                END_DATE_PICKER -> {
+                    endDate = timestamp
+
+                    // Make sure there is at least one moth difference between start and end time
+                    val calendar = Calendar.getInstance()
+                    calendar.timeInMillis = endDate
+                    calendar.add(Calendar.MONTH, -1)
+
+                    val tmpTime = calendar.timeInMillis
+
+                    if (tmpTime < startDate)
+                        startDate = tmpTime
+
+                    updateDateTextViews()
+                }
+            }
+        }
+    }
+
+    private fun updateDateTextViews() {
+        var date = Date(startDate)
+        tvStartDate.text = dateFormat.format(date)
+
+        date = Date(endDate)
+        tvEndDate.text = dateFormat.format(date)
+    }
+
+    // Container Activity must implement this interface
+    interface OnFilterOptionsSelectedListener {
+        fun onFilterOptionsSelected(filterTransactionsDirection: Int,
+                                    filterDateRangeAll: Boolean,
+                                    filterStartDate: Long,
+                                    filterEndDate: Long,
+                                    filterCryptocurrencyAll: Boolean,
+                                    filterCryptocurrency: String,
+                                    filterFiatAmountAll: Boolean,
+                                    filterFromFiatAmount: Long,
+                                    filterToFiatAmount: Long)
+    }
+
+
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        onAttachToParentFragment(parentFragment!!)
+
+        // Initialize handler for communication with the DatePicker
+        mDatePickerHandler = DatePickerHandler()
+
+        val builder = AlertDialog.Builder(context!!)
+            .setTitle("Filter options")
+            .setPositiveButton("Filter") { _, _ ->  validateFields() }
+            .setNegativeButton("Cancel") { _, _ ->  dismiss() }
+
+        // Inflate layout
+        val inflater = activity!!.layoutInflater
+        val view = inflater.inflate(R.layout.dialog_filter_options, null)
+
+        // Initialize Transactions direction
+        rbTransactionAll = view.findViewById(R.id.rbTransactionAll)
+        rbTransactionSent = view.findViewById(R.id.rbTransactionSent)
+        rbTransactionReceived = view.findViewById(R.id.rbTransactionReceived)
+        val radioButtonChecked = arguments!!.getInt(KEY_FILTER_TRANSACTION_DIRECTION, 0)
+        when (radioButtonChecked) {
+            0 -> rbTransactionAll.isChecked = true
+            1 -> rbTransactionSent.isChecked = true
+            2 -> rbTransactionReceived.isChecked = true
+        }
+
+        // Initialize Date range
+        cbDateRange = view.findViewById(R.id.cbDateRange)
+//        llDateRange = view.findViewById(R.id.llDateRange)
+//        cbDateRange.setOnCheckedChangeListener { _, isChecked ->
+//            llDateRange.visibility = if(isChecked) View.GONE else View.VISIBLE }
+        cbDateRange.isChecked = arguments!!.getBoolean(KEY_FILTER_DATE_RANGE_ALL, true)
+//
+//        tvStartDate = view.findViewById(R.id.tvStartDate)
+//        tvEndDate = view.findViewById(R.id.tvEndDate)
+//
+//        startDate = arguments!!.getLong(KEY_FILTER_START_DATE, 0)
+//        tvStartDate.setOnClickListener(mDateClickListener)
+//
+//        endDate = arguments!!.getLong(KEY_FILTER_END_DATE, 0)
+//        tvEndDate.setOnClickListener(mDateClickListener)
+//
+//        updateDateTextViews()
+
+        // Initialize Cryptocurrency
+        cbCryptocurrency = view.findViewById(R.id.cbCryptocurrency)
+//        sCryptocurrency = view.findViewById(R.id.sCryptocurrency)
+//        cbCryptocurrency.setOnCheckedChangeListener { _, isChecked ->
+//            sCryptocurrency.visibility = if(isChecked) View.GONE else View.VISIBLE }
+        cbCryptocurrency.isChecked = arguments!!.getBoolean(KEY_FILTER_CRYPTOCURRENCY_ALL, true)
+
+//        sCryptocurrency = view.findViewById(R.id.sCryptocurrency)
+//        initializeCryptocurrencySpinner()
+
+
+        // Initialize Fiat amount
+        cbFiatAmount = view.findViewById(R.id.cbFiatAmount)
+//        llFiatAmount = view.findViewById(R.id.llFiatAmount)
+//        cbFiatAmount.setOnCheckedChangeListener { _, isChecked ->
+//            llFiatAmount.visibility = if(isChecked) View.GONE else View.VISIBLE }
+        cbFiatAmount.isChecked = arguments!!.getBoolean(KEY_FILTER_FIAT_AMOUNT_ALL, true)
+
+//        val locale = Resources.getSystem().configuration.locale
+//
+//        etFromFiatAmount = view.findViewById(R.id.etFromFiatAmount)
+//        etFromFiatAmount.locale = locale
+//        val fromFiatAmount = arguments!!.getLong(KEY_FILTER_FROM_FIAT_AMOUNT, 0)
+//        etFromFiatAmount.setText("$fromFiatAmount", TextView.BufferType.EDITABLE)
+//
+//        etToFiatAmount = view.findViewById(R.id.etToFiatAmount)
+//        etToFiatAmount.locale = locale
+//        val toFiatAmount = arguments!!.getLong(KEY_FILTER_TO_FIAT_AMOUNT, 0)
+//        etToFiatAmount.setText("$toFiatAmount", TextView.BufferType.EDITABLE)
+
+        builder.setView(view)
+
+        return builder.create()
+    }
+
+    /**
+     * Attaches the current [DialogFragment] to its [Fragment] parent, to initialize the
+     * [OnFilterOptionsSelectedListener] interface
+     */
+    private fun onAttachToParentFragment(fragment: Fragment) {
+        try {
+            mCallback = fragment as OnFilterOptionsSelectedListener
+        } catch (e: ClassCastException) {
+            throw ClassCastException(fragment.toString() + " must implement OnFilterOptionsSelectedListener")
+        }
+    }
+
+//    private fun initializeCryptocurrencySpinner() {
+//        val cryptoCurrencyList = database!!.getSortedCryptoCurrencies(false,
+//            SortType.DESCENDING, true)
+//
+//        val cryptocurrencySpinnerAdapter = CryptocurrencySpinnerAdapter(context!!,
+//            R.layout.item_cryptocurrency,
+//            R.id.tvCryptocurrencyName,
+//            cryptoCurrencyList)
+//
+//        sCryptocurrency.adapter = cryptocurrencySpinnerAdapter
+//
+//        val cryptocurrencySelected = arguments!!.getString(KEY_FILTER_CRYPTOCURRENCY)
+//
+//        val index = Math.max(cryptocurrencySpinnerAdapter.getPosition(database!!.getCryptocurrencyBySymbol(
+//            cryptocurrencySelected)), 0)
+//
+//        sCryptocurrency.setSelection(index)
+//    }
+
+//    private val mDateClickListener = View.OnClickListener { v ->
+//        val calendar = Calendar.getInstance()
+//
+//        // Variable used to select that date on the calendar
+//        var currentTime = calendar.timeInMillis
+//        var maxTime = currentTime
+//
+//        var which = -1
+//        if (v.id == R.id.tvStartDate) {
+//            which = START_DATE_PICKER
+//            currentTime = startDate
+//            calendar.timeInMillis = endDate
+//            calendar.add(Calendar.MONTH, -1)
+//            maxTime = calendar.timeInMillis
+//        } else if (v.id == R.id.tvEndDate) {
+//            which = END_DATE_PICKER
+//            currentTime = endDate
+//        }
+//
+//        val datePickerFragment = DatePickerFragment.newInstance(which, currentTime,
+//            maxTime, mDatePickerHandler)
+//        datePickerFragment.show(activity!!.supportFragmentManager, "date-picker")
+//    }
+
+    private fun validateFields() {
+        val filterTransactionsDirection =  when {
+            rbTransactionAll.isChecked -> 0
+            rbTransactionSent.isChecked -> 1
+            rbTransactionReceived.isChecked -> 2
+            else -> { 0 }
+        }
+
+        val filterDateRangeAll = cbDateRange.isChecked
+
+        val filterCryptocurrencyAll = cbCryptocurrency.isChecked
+
+        val filterCryptocurrency = "" //(sCryptocurrency.selectedItem as CryptoCurrency).symbol
+
+        val filterFiatAmountAll = cbFiatAmount.isChecked
+
+        val filterFromFiatAmount = 0L//(etFromFiatAmount.currencyDouble *
+//                Math.pow(10.0, mUserCurrency.defaultFractionDigits.toDouble())).toLong()
+
+        var filterToFiatAmount = 1L//(etToFiatAmount.currencyDouble *
+//                Math.pow(10.0, mUserCurrency.defaultFractionDigits.toDouble())).toLong()
+
+        // Make sure ToFiatAmount is at least 50 units bigger than FromFiatAmount
+//        if (!filterFiatAmountAll && filterToFiatAmount <= filterFromFiatAmount) {
+//            filterToFiatAmount = filterFromFiatAmount + 50 *
+//                    Math.pow(10.0, mUserCurrency.defaultFractionDigits.toDouble()).toLong()
+//        }
+
+        mCallback!!.onFilterOptionsSelected(filterTransactionsDirection, filterDateRangeAll,
+            startDate, endDate, filterCryptocurrencyAll, filterCryptocurrency, filterFiatAmountAll,
+            filterFromFiatAmount, filterToFiatAmount)
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/HomeFragment.kt

@@ -0,0 +1,101 @@
+package cy.agorise.bitsybitshareswallet.fragments
+
+import androidx.lifecycle.ViewModelProviders
+import android.os.Bundle
+import android.preference.PreferenceManager
+import android.util.Log
+import android.view.*
+import androidx.appcompat.widget.Toolbar
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentManager
+import androidx.fragment.app.FragmentPagerAdapter
+import androidx.lifecycle.Observer
+import androidx.navigation.Navigation
+import androidx.navigation.fragment.findNavController
+
+import cy.agorise.bitsybitshareswallet.R
+import cy.agorise.bitsybitshareswallet.database.entities.UserAccount
+import cy.agorise.bitsybitshareswallet.utils.Constants
+import cy.agorise.bitsybitshareswallet.viewmodels.UserAccountViewModel
+import kotlinx.android.synthetic.main.fragment_home.*
+
+class HomeFragment : Fragment() {
+
+    private lateinit var mUserAccountViewModel: UserAccountViewModel
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        setHasOptionsMenu(true)
+
+        val toolbar: Toolbar? = activity?.findViewById(R.id.toolbar)
+        toolbar?.navigationIcon = resources.getDrawable(R.drawable.ic_bitsy_logo_2, null)
+
+        return inflater.inflate(R.layout.fragment_home, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        // Configure UserAccountViewModel to show the current account
+        mUserAccountViewModel = ViewModelProviders.of(this).get(UserAccountViewModel::class.java)
+
+        val userId = PreferenceManager.getDefaultSharedPreferences(context)
+            .getString(Constants.KEY_CURRENT_ACCOUNT_ID, "")
+
+        mUserAccountViewModel.getUserAccount(userId!!).observe(this, Observer<UserAccount>{ user ->
+            tvAccountName.text = user.name
+        })
+
+        // Navigate to the Receive Transaction Fragment
+        fabReceiveTransaction.setOnClickListener (
+            Navigation.createNavigateOnClickListener(R.id.receive_action)
+        )
+
+        // Navigate to the Send Transaction Fragment without activating the camera
+        fabSendTransaction.setOnClickListener(
+            Navigation.createNavigateOnClickListener(R.id.send_action)
+        )
+
+        // Navigate to the Send Transaction Fragment using Navigation's SafeArgs to activate the camera
+        fabSendTransactionCamera.setOnClickListener {
+            val action = HomeFragmentDirections.sendActionCamera()
+            action.setOpenCamera(true)
+            findNavController().navigate(action)
+        }
+
+        // Configure ViewPager with PagerAdapter and TabLayout to display the Balances/NetWorth section
+        val pagerAdapter = PagerAdapter(fragmentManager!!)
+        viewPager.adapter = pagerAdapter
+        tabLayout.setupWithViewPager(viewPager)
+        // Set the pie chart icon for the third tab
+        tabLayout.getTabAt(2)?.setIcon(R.drawable.ic_pie_chart)
+    }
+
+    /**
+     * Pager adapter to create the placeholder fragments
+     */
+    private inner class PagerAdapter internal constructor(fm: FragmentManager) : FragmentPagerAdapter(fm) {
+
+        override fun getItem(position: Int): Fragment {
+            // getItem is called to instantiate the fragment for the given page.
+            return if (position == 0)
+                BalancesFragment()
+            else
+                NetWorthFragment()
+        }
+
+        override fun getPageTitle(position: Int): CharSequence? {
+            return listOf(getString(R.string.title_balances), getString(R.string.title_net_worth), "")[position]
+        }
+
+        override fun getCount(): Int {
+            return 3
+        }
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
+        inflater.inflate(R.menu.menu_home, menu)
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/MerchantsFragment.kt

@@ -1,22 +1,42 @@
 package cy.agorise.bitsybitshareswallet.fragments
 
-import androidx.lifecycle.ViewModelProviders
 import android.os.Bundle
+import android.util.Log
 import androidx.fragment.app.Fragment
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import com.google.android.gms.maps.GoogleMap
+import com.google.android.gms.maps.OnMapReadyCallback
+import com.google.android.gms.maps.SupportMapFragment
+import com.google.android.gms.maps.model.BitmapDescriptorFactory
+import com.google.android.gms.maps.model.LatLng
+import com.google.android.gms.maps.model.MarkerOptions
+import com.google.gson.GsonBuilder
 
 import cy.agorise.bitsybitshareswallet.R
-import cy.agorise.bitsybitshareswallet.viewmodels.MerchantsViewModel
+import cy.agorise.bitsybitshareswallet.models.Merchant
+import cy.agorise.bitsybitshareswallet.network.AmbassadorService
+import cy.agorise.bitsybitshareswallet.network.FeathersResponse
+import retrofit2.Call
+import retrofit2.Response
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+import java.io.IOException
+import android.graphics.Bitmap
+import android.graphics.Canvas
+import android.graphics.drawable.Drawable
+import com.google.android.gms.maps.model.BitmapDescriptor
+import cy.agorise.bitsybitshareswallet.utils.Constants
 
-class MerchantsFragment : Fragment() {
 
-    companion object {
+class MerchantsFragment : Fragment(), OnMapReadyCallback, retrofit2.Callback<FeathersResponse<Merchant>> {
-        fun newInstance() = MerchantsFragment()
-    }
 
-    private lateinit var viewModel: MerchantsViewModel
+    private lateinit var mMap: GoogleMap
+
+    private var merchants: List<Merchant>? = null
+
+    private lateinit var merchantIcon: BitmapDescriptor
 
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?,
@@ -25,10 +45,73 @@ class MerchantsFragment : Fragment() {
         return inflater.inflate(R.layout.fragment_merchants, container, false)
     }
 
-    override fun onActivityCreated(savedInstanceState: Bundle?) {
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onActivityCreated(savedInstanceState)
+        super.onViewCreated(view, savedInstanceState)
-        viewModel = ViewModelProviders.of(this).get(MerchantsViewModel::class.java)
+
-        // TODO: Use the ViewModel
+        // Obtain the SupportMapFragment and get notified when the map is ready to be used.
+        val mapFragment = childFragmentManager.findFragmentById(R.id.map) as SupportMapFragment
+        mapFragment.getMapAsync(this)
+
+        merchantIcon = getMarkerIconFromDrawable(resources.getDrawable(R.drawable.ic_pin_merchants, null))
+
+        // TODO https://github.com/Agorise/bitsy-wallet/blob/feat_merchants/app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/MapFragment.kt
     }
 
+    /**
+     * Manipulates the map once available.
+     * This callback is triggered when the map is ready to be used.
+     * This is where we can add markers or lines, add listeners or move the camera. In this case,
+     * we just add a marker near Sydney, Australia.
+     * If Google Play services is not installed on the device, the user will be prompted to install
+     * it inside the SupportMapFragment. This method will only be triggered once the user has
+     * installed Google Play services and returned to the app.
+     */
+    override fun onMapReady(googleMap: GoogleMap) {
+        mMap = googleMap
+
+        val gson = GsonBuilder()
+            .setLenient()
+            .create()
+        val retrofit = Retrofit.Builder()
+            .baseUrl(Constants.MERCHANTS_WEBSERVICE_URL)
+            .addConverterFactory(GsonConverterFactory.create(gson))
+            .build()
+
+        val ambassadorService = retrofit.create<AmbassadorService>(AmbassadorService::class.java)
+        val call = ambassadorService.allMerchants
+        call.enqueue(this)
+    }
+
+    override fun onResponse(call: Call<FeathersResponse<Merchant>>, response: Response<FeathersResponse<Merchant>>) {
+        if (response.isSuccessful) {
+            val res: FeathersResponse<Merchant>? = response.body()
+            merchants = res!!.data
+            for (mer in merchants!!) {
+                val location = LatLng(mer.lat.toDouble(), mer.lon.toDouble())
+                mMap.addMarker(
+                    MarkerOptions().position(location).title(mer.name).snippet(mer.address).icon(merchantIcon)
+                )
+            }
+        } else {
+            try {
+                Log.e("error_bitsy", response.errorBody()?.string())
+            } catch (e: IOException) {
+                e.printStackTrace()
+            }
+
+        }
+    }
+
+    override fun onFailure(call: Call<FeathersResponse<Merchant>>, t: Throwable) {
+
+    }
+
+    private fun getMarkerIconFromDrawable(drawable: Drawable): BitmapDescriptor {
+        val canvas = Canvas()
+        val bitmap = Bitmap.createBitmap(drawable.intrinsicWidth, drawable.intrinsicHeight, Bitmap.Config.ARGB_8888)
+        canvas.setBitmap(bitmap)
+        drawable.setBounds(0, 0, drawable.intrinsicWidth, drawable.intrinsicHeight)
+        drawable.draw(canvas)
+        return BitmapDescriptorFactory.fromBitmap(bitmap)
+    }
 }

app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/NetWorthFragment.kt

@@ -0,0 +1,28 @@
+package cy.agorise.bitsybitshareswallet.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import cy.agorise.bitsybitshareswallet.R
+
+class NetWorthFragment: Fragment() {
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        setHasOptionsMenu(true)
+
+        return inflater.inflate(R.layout.fragment_net_worth, container, false)
+    }
+
+    override fun setUserVisibleHint(isVisibleToUser: Boolean) {
+        super.setUserVisibleHint(isVisibleToUser)
+        if (isVisibleToUser) {
+            // TODO find a better way to recreate the fragment, that does it only when the theme has been changed
+            fragmentManager!!.beginTransaction().detach(this).attach(this).commit()
+        }
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/ReceiveTransactionFragment.kt

@@ -0,0 +1,444 @@
+package cy.agorise.bitsybitshareswallet.fragments
+
+import android.Manifest
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.content.ServiceConnection
+import android.content.pm.PackageManager
+import android.graphics.Bitmap
+import android.graphics.Color
+import android.os.Bundle
+import android.os.IBinder
+import android.preference.PreferenceManager
+import android.util.Log
+import android.view.*
+import android.widget.AdapterView
+import android.widget.Toast
+import androidx.core.content.ContextCompat
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProviders
+import com.google.common.primitives.UnsignedLong
+import com.google.zxing.BarcodeFormat
+import com.google.zxing.EncodeHintType
+import com.google.zxing.MultiFormatWriter
+import com.google.zxing.WriterException
+import com.google.zxing.common.BitMatrix
+import com.jakewharton.rxbinding3.widget.textChanges
+import cy.agorise.bitsybitshareswallet.R
+import cy.agorise.bitsybitshareswallet.adapters.AssetsAdapter
+import cy.agorise.bitsybitshareswallet.adapters.AutoSuggestAssetAdapter
+import cy.agorise.bitsybitshareswallet.utils.Constants
+import cy.agorise.bitsybitshareswallet.utils.Helper
+import cy.agorise.bitsybitshareswallet.viewmodels.AssetViewModel
+import cy.agorise.bitsybitshareswallet.viewmodels.UserAccountViewModel
+import cy.agorise.graphenej.*
+import cy.agorise.graphenej.api.ConnectionStatusUpdate
+import cy.agorise.graphenej.api.android.NetworkService
+import cy.agorise.graphenej.api.android.RxBus
+import cy.agorise.graphenej.api.calls.ListAssets
+import cy.agorise.graphenej.models.JsonRpcResponse
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.disposables.CompositeDisposable
+import kotlinx.android.synthetic.main.fragment_receive_transaction.*
+import java.lang.Exception
+import java.math.RoundingMode
+import java.text.DecimalFormat
+import java.text.DecimalFormatSymbols
+import java.util.*
+import java.util.concurrent.TimeUnit
+import kotlin.collections.ArrayList
+
+class ReceiveTransactionFragment : Fragment(), ServiceConnection {
+    private val TAG = this.javaClass.simpleName
+
+    private val RESPONSE_LIST_ASSETS = 1
+    private val REQUEST_WRITE_EXTERNAL_STORAGE_PERMISSION = 100
+
+    /** Number of assets to request from the NetworkService to show as suggestions in the AutoCompleteTextView */
+    private val AUTO_SUGGEST_ASSET_LIMIT = 5
+
+    private val OTHER_ASSET = "other_asset"
+
+    private lateinit var mUserAccountViewModel: UserAccountViewModel
+    private lateinit var mAssetViewModel: AssetViewModel
+
+    /** Current user account */
+    private var mUserAccount: UserAccount? = null
+
+    private var mDisposables = CompositeDisposable()
+
+    private var mAsset: Asset? = null
+
+    private var mAssetsAdapter: AssetsAdapter? = null
+
+    private lateinit var mAutoSuggestAssetAdapter: AutoSuggestAssetAdapter
+
+    private var mAssets = ArrayList<cy.agorise.bitsybitshareswallet.database.entities.Asset>()
+
+    private var selectedAssetSymbol = ""
+
+    /** Used to avoid erasing the QR code when the user selects an item from the AutoComplete suggestions */
+    private var selectedInAutoCompleteTextView = false
+
+    // Map used to keep track of request and response id pairs
+    private val responseMap = HashMap<Long, Int>()
+
+    /* Network service connection */
+    private var mNetworkService: NetworkService? = null
+
+    /** Flag used to keep track of the NetworkService binding state */
+    private var mShouldUnbindNetwork: Boolean = false
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        setHasOptionsMenu(true)
+
+        return inflater.inflate(R.layout.fragment_receive_transaction, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        // Configure UserAccountViewModel to show the current account
+        mUserAccountViewModel = ViewModelProviders.of(this).get(UserAccountViewModel::class.java)
+
+        val userId = PreferenceManager.getDefaultSharedPreferences(context)
+            .getString(Constants.KEY_CURRENT_ACCOUNT_ID, "")
+
+        mUserAccountViewModel.getUserAccount(userId!!).observe(this,
+            Observer<cy.agorise.bitsybitshareswallet.database.entities.UserAccount>{ user ->
+                mUserAccount = UserAccount(user.id, user.name)
+        })
+
+        // Configure Assets spinner to show Assets already saved into the db
+        mAssetViewModel = ViewModelProviders.of(this).get(AssetViewModel::class.java)
+
+        mAssetViewModel.getAll().observe(this,
+            Observer<List<cy.agorise.bitsybitshareswallet.database.entities.Asset>> { assets ->
+                mAssets.clear()
+                mAssets.addAll(assets)
+
+                // Add an option at the end so the user can search for an asset other than the ones saved in the db
+                val asset = cy.agorise.bitsybitshareswallet.database.entities.Asset(
+                    OTHER_ASSET, "Other...", 0, "", ""
+                )
+                mAssets.add(asset)
+
+                mAssetsAdapter = AssetsAdapter(context!!, android.R.layout.simple_spinner_item, mAssets)
+                spAsset.adapter = mAssetsAdapter
+
+                // Try to select the selectedAssetSymbol
+                for (i in 0 until mAssetsAdapter!!.count) {
+                    if (mAssetsAdapter!!.getItem(i)!!.symbol == selectedAssetSymbol) {
+                        spAsset.setSelection(i)
+                        break
+                    }
+                }
+        })
+
+        spAsset.onItemSelectedListener = object : AdapterView.OnItemSelectedListener{
+            override fun onNothingSelected(parent: AdapterView<*>?) { }
+
+            override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
+                val asset = mAssetsAdapter!!.getItem(position)!!
+
+                if (asset.id == OTHER_ASSET) {
+                    tilAsset.visibility = View.VISIBLE
+                    mAsset = null
+                } else {
+                    tilAsset.visibility = View.GONE
+                    selectedAssetSymbol = asset.symbol
+
+                    mAsset = Asset(asset.id, asset.symbol, asset.precision)
+                }
+                updateQR()
+            }
+        }
+
+        // Use RxJava Debounce to create QR code only after the user stopped typing an amount
+        mDisposables.add(
+            tietAmount.textChanges()
+                .debounce(1000, TimeUnit.MILLISECONDS)
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe { updateQR() }
+        )
+
+        // Add adapter to the Assets AutoCompleteTextView
+        mAutoSuggestAssetAdapter = AutoSuggestAssetAdapter(context!!, android.R.layout.simple_dropdown_item_1line)
+        actvAsset.setAdapter(mAutoSuggestAssetAdapter)
+
+        // Use RxJava Debounce to avoid making calls to the NetworkService on every text change event and also avoid
+        // the first call when the View is created
+        mDisposables.add(
+            actvAsset.textChanges()
+                .skipInitialValue()
+                .debounce(500, TimeUnit.MILLISECONDS)
+                .map { it.toString().trim().toUpperCase() }
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe {
+                    if (!selectedInAutoCompleteTextView) {
+                        mAsset = null
+                        updateQR()
+                    }
+                    selectedInAutoCompleteTextView = false
+
+                    // Get a list of assets that match the already typed string by the user
+                    if (it.length > 1 && mNetworkService != null) {
+                        val id = mNetworkService!!.sendMessage(ListAssets(it, AUTO_SUGGEST_ASSET_LIMIT),
+                            ListAssets.REQUIRED_API)
+                        responseMap[id] = RESPONSE_LIST_ASSETS
+                    }
+                }
+        )
+
+        actvAsset.setOnItemClickListener { parent, _, position, _ ->
+            val asset = parent.adapter.getItem(position) as cy.agorise.bitsybitshareswallet.database.entities.Asset
+            mAsset = Asset(asset.id, asset.symbol, asset.precision)
+            selectedInAutoCompleteTextView = true
+            updateQR()
+        }
+
+        // Connect to the RxBus, which receives events from the NetworkService
+        mDisposables.add(
+            RxBus.getBusInstance()
+                .asFlowable()
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe { handleIncomingMessage(it) }
+        )
+    }
+
+    private fun handleIncomingMessage(message: Any?) {
+        if (message is JsonRpcResponse<*>) {
+            if (responseMap.containsKey(message.id)) {
+                val responseType = responseMap[message.id]
+                when (responseType) {
+                    RESPONSE_LIST_ASSETS            -> handleListAssets(message.result as List<Asset>)
+                }
+                responseMap.remove(message.id)
+            }
+        } else if (message is ConnectionStatusUpdate) {
+            if (message.updateCode == ConnectionStatusUpdate.DISCONNECTED) {
+                // If we got a disconnection notification, we should clear our response map, since
+                // all its stored request ids will now be reset
+                responseMap.clear()
+            }
+        }
+    }
+
+    private fun handleListAssets(assetList: List<Asset>) {
+        Log.d(TAG, "handleListAssets")
+        val assets = ArrayList<cy.agorise.bitsybitshareswallet.database.entities.Asset>()
+        for (_asset in assetList) {
+            val asset = cy.agorise.bitsybitshareswallet.database.entities.Asset(
+                _asset.objectId,
+                _asset.symbol,
+                _asset.precision,
+                _asset.description ?: "",
+                _asset.bitassetId ?: ""
+            )
+
+            assets.add(asset)
+        }
+        mAutoSuggestAssetAdapter.setData(assets)
+        mAutoSuggestAssetAdapter.notifyDataSetChanged()
+    }
+
+    private fun updateQR() {
+        if (mAsset == null) {
+            ivQR.setImageDrawable(null)
+            // TODO clean the please pay and to text at the bottom too
+            return
+        }
+
+        // Try to obtain the amount from the Amount Text Field or make it zero otherwise
+        val amount: Long = try {
+            val tmpAmount = tietAmount.text.toString().toDouble()
+            (tmpAmount * Math.pow(10.0, mAsset!!.precision.toDouble())).toLong()
+        }catch (e: Exception) {
+            0
+        }
+
+        val total = AssetAmount(UnsignedLong.valueOf(amount), mAsset!!)
+        val totalInDouble = Util.fromBase(total)
+        val items = arrayOf(LineItem("transfer", 1, totalInDouble))
+        val invoice = Invoice(mUserAccount!!.name, "", "#bitsy", mAsset!!.symbol, items, "", "")
+        Log.d(TAG, "invoice: " + invoice.toJsonString())
+        try {
+            val bitmap = encodeAsBitmap(Invoice.toQrCode(invoice), "#139657") // PalmPay green
+            ivQR.setImageBitmap(bitmap)
+            updateAmountAddressUI(total, mUserAccount!!.name)
+        } catch (e: WriterException) {
+            Log.e(TAG, "WriterException. Msg: " + e.message)
+        }
+    }
+
+    /**
+     * Encodes the provided data as a QR-code. Used to provide payment requests.
+     * @param data: Data containing payment request data as the recipient's address and the requested amount.
+     * @param color: The color used for the QR-code
+     * @return Bitmap with the QR-code encoded data
+     * @throws WriterException if QR Code cannot be generated
+     */
+    @Throws(WriterException::class)
+    internal fun encodeAsBitmap(data: String, color: String): Bitmap? {
+        val result: BitMatrix
+
+        // Get measured width and height of the ImageView where the QR code will be placed
+        var w = ivQR.width
+        var h = ivQR.height
+
+        // Gets minimum side length and sets both width and height to that value so the final
+        // QR code has a squared shape
+        val minSide = if (w < h) w else h
+        h = minSide
+        w = h
+
+        try {
+            val hints = HashMap<EncodeHintType, Any>()
+            hints[EncodeHintType.MARGIN] = 0
+            result = MultiFormatWriter().encode(
+                data,
+                BarcodeFormat.QR_CODE, w, h, hints
+            )
+        } catch (iae: IllegalArgumentException) {
+            // Unsupported format
+            return null
+        }
+
+        val pixels = IntArray(w * h)
+        for (y in 0 until h) {
+            val offset = y * w
+            for (x in 0 until w) {
+                pixels[offset + x] = if (result.get(x, y)) Color.parseColor(color) else Color.WHITE
+            }
+        }
+        val bitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888)
+        bitmap.setPixels(pixels, 0, w, 0, 0, w, h)
+        return bitmap
+    }
+
+    /**
+     * Updates the UI to show amount and account to send the payment
+     *
+     * @param total Total Amount in crypto to be paid
+     * @param account Account to pay total
+     */
+    private fun updateAmountAddressUI(total: AssetAmount, account: String) {
+        val df = DecimalFormat("####."+("#".repeat(total.asset.precision)))
+        df.roundingMode = RoundingMode.CEILING
+        df.decimalFormatSymbols = DecimalFormatSymbols(Locale.getDefault())
+
+        val amount = total.amount.toDouble() / Math.pow(10.toDouble(), total.asset.precision.toDouble())
+        val strAmount = df.format(amount)
+
+        val txtAmount = getString(R.string.template__please_pay, strAmount, total.asset.symbol)
+        val txtAccount = getString(R.string.template__to, account)
+
+        tvPleasePay.text = txtAmount
+        tvTo.text = txtAccount
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
+        inflater.inflate(R.menu.menu_receive_transaction, menu)
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem?): Boolean {
+        if (item?.itemId == R.id.menu_share) {
+            verifyStoragePermission()
+            return true
+        }
+        return super.onOptionsItemSelected(item)
+    }
+
+    private fun verifyStoragePermission() {
+        if (ContextCompat.checkSelfPermission(activity!!, Manifest.permission.WRITE_EXTERNAL_STORAGE)
+            != PackageManager.PERMISSION_GRANTED) {
+            // Permission is not already granted
+            requestPermissions(arrayOf(android.Manifest.permission.WRITE_EXTERNAL_STORAGE),
+                REQUEST_WRITE_EXTERNAL_STORAGE_PERMISSION)
+        } else {
+            // Permission is already granted
+            shareQRScreenshot()
+        }
+    }
+
+    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+
+        if (requestCode == REQUEST_WRITE_EXTERNAL_STORAGE_PERMISSION) {
+            if ((grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED)) {
+                shareQRScreenshot()
+            } else {
+                // TODO extract string resource
+                Toast.makeText(context!!, "Storage permission is necessary to share QR codes.", Toast.LENGTH_SHORT).show()
+            }
+            return
+        }
+    }
+
+    /**
+     * This function takes a screenshot as a bitmap, saves it into a temporal cache image and then
+     * sends an intent so the user can select the desired method to share the image.
+     */
+    private fun shareQRScreenshot() {
+        // TODO improve, show errors where necessary so the user can fix it
+        // Avoid sharing the QR code image if the fields are not filled correctly
+        if (mAsset == null)
+            return
+
+        // Get Screenshot
+        val screenshot = Helper.loadBitmapFromView(container)
+        val imageUri = Helper.saveTemporalBitmap(context!!, screenshot)
+
+        // Prepare information for share intent
+        val subject = getString(R.string.msg__invoice_subject, mUserAccount?.name)
+        val content = tvPleasePay.text.toString() + "\n" +
+                tvTo.text.toString()
+
+        // Create share intent and call it
+        val shareIntent = Intent()
+        shareIntent.action = Intent.ACTION_SEND
+        shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION) // temp permission for receiving app to read this file
+        shareIntent.putExtra(Intent.EXTRA_STREAM, imageUri)
+        shareIntent.putExtra(Intent.EXTRA_SUBJECT, subject)
+        shareIntent.putExtra(Intent.EXTRA_TEXT, content)
+        shareIntent.type = "*/*"
+        startActivity(Intent.createChooser(shareIntent, getString(R.string.text__share_with)))
+    }
+
+    override fun onResume() {
+        super.onResume()
+
+        val intent = Intent(context, NetworkService::class.java)
+        if (context?.bindService(intent, this, Context.BIND_AUTO_CREATE) == true) {
+            mShouldUnbindNetwork = true
+        } else {
+            Log.e(TAG, "Binding to the network service failed.")
+        }
+    }
+
+    override fun onPause() {
+        super.onPause()
+
+        // Unbinding from network service
+        if (mShouldUnbindNetwork) {
+            context?.unbindService(this)
+            mShouldUnbindNetwork = false
+        }
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+
+        if (!mDisposables.isDisposed) mDisposables.dispose()
+    }
+
+    override fun onServiceDisconnected(name: ComponentName?) { }
+
+    override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
+        // We've bound to LocalService, cast the IBinder and get LocalService instance
+        val binder = service as NetworkService.LocalBinder
+        mNetworkService = binder.service
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/SendTransactionFragment.kt

@@ -0,0 +1,476 @@
+package cy.agorise.bitsybitshareswallet.fragments
+
+import android.Manifest
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.content.ServiceConnection
+import android.content.pm.PackageManager
+import android.os.Bundle
+import android.os.IBinder
+import android.preference.PreferenceManager
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.AdapterView
+import android.widget.Toast
+import androidx.core.content.ContextCompat
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProviders
+import com.google.common.primitives.UnsignedLong
+import com.google.zxing.BarcodeFormat
+import com.google.zxing.Result
+import com.jakewharton.rxbinding3.widget.textChanges
+import cy.agorise.bitsybitshareswallet.R
+import cy.agorise.bitsybitshareswallet.adapters.BalancesDetailsAdapter
+import cy.agorise.bitsybitshareswallet.database.joins.BalanceDetail
+import cy.agorise.bitsybitshareswallet.repositories.AuthorityRepository
+import cy.agorise.bitsybitshareswallet.utils.Constants
+import cy.agorise.bitsybitshareswallet.utils.CryptoUtils
+import cy.agorise.bitsybitshareswallet.viewmodels.BalanceDetailViewModel
+import cy.agorise.graphenej.*
+import cy.agorise.graphenej.api.ConnectionStatusUpdate
+import cy.agorise.graphenej.api.android.NetworkService
+import cy.agorise.graphenej.api.android.RxBus
+import cy.agorise.graphenej.api.calls.BroadcastTransaction
+import cy.agorise.graphenej.api.calls.GetAccountByName
+import cy.agorise.graphenej.api.calls.GetDynamicGlobalProperties
+import cy.agorise.graphenej.api.calls.GetRequiredFees
+import cy.agorise.graphenej.models.AccountProperties
+import cy.agorise.graphenej.models.DynamicGlobalProperties
+import cy.agorise.graphenej.models.JsonRpcResponse
+import cy.agorise.graphenej.operations.TransferOperationBuilder
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.disposables.CompositeDisposable
+import io.reactivex.schedulers.Schedulers
+import kotlinx.android.synthetic.main.fragment_send_transaction.*
+import me.dm7.barcodescanner.zxing.ZXingScannerView
+import org.bitcoinj.core.DumpedPrivateKey
+import org.bitcoinj.core.ECKey
+import java.math.RoundingMode
+import java.text.DecimalFormat
+import java.text.DecimalFormatSymbols
+import java.util.ArrayList
+import java.util.Locale
+import java.util.concurrent.TimeUnit
+import javax.crypto.AEADBadTagException
+
+class SendTransactionFragment : Fragment(), ZXingScannerView.ResultHandler, ServiceConnection {
+    private val TAG = this.javaClass.simpleName
+
+    // Camera Permission
+    private val REQUEST_CAMERA_PERMISSION = 1
+
+    private val RESPONSE_GET_ACCOUNT_BY_NAME = 1
+    private val RESPONSE_GET_DYNAMIC_GLOBAL_PARAMETERS = 2
+    private val RESPONSE_GET_REQUIRED_FEES = 3
+    private val RESPONSE_BROADCAST_TRANSACTION = 4
+
+    private var isCameraPreviewVisible = false
+    private var isToAccountCorrect = false
+    private var isAmountCorrect = false
+
+    private var mBalancesDetails: List<BalanceDetail>? = null
+
+    private lateinit var mBalanceDetailViewModel: BalanceDetailViewModel
+
+    private var mBalancesDetailsAdapter: BalancesDetailsAdapter? = null
+
+    private var selectedAssetSymbol = ""
+
+    /** Current user account */
+    private var mUserAccount: UserAccount? = null
+
+    /** User account to which send the funds */
+    private var mSelectedUserAccount: UserAccount? = null
+
+    private var mDisposables = CompositeDisposable()
+
+    /* Network service connection */
+    private var mNetworkService: NetworkService? = null
+
+    /** Flag used to keep track of the NetworkService binding state */
+    private var mShouldUnbindNetwork: Boolean = false
+
+    // Map used to keep track of request and response id pairs
+    private val responseMap = HashMap<Long, Int>()
+
+    private var transaction: Transaction? = null
+
+    /** Variable holding the current user's private key in the WIF format */
+    private var wifKey: String? = null
+
+    /** Repository to access and update Authorities */
+    private var authorityRepository: AuthorityRepository? = null
+
+    /* This is one of the of the recipient account's public key, it will be used for memo encoding */
+    private var destinationPublicKey: PublicKey? = null
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        return inflater.inflate(R.layout.fragment_send_transaction, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        val userId = PreferenceManager.getDefaultSharedPreferences(context)
+            .getString(Constants.KEY_CURRENT_ACCOUNT_ID, "")
+
+        if (userId != "")
+            mUserAccount = UserAccount(userId)
+
+        // Use Navigation SafeArgs to decide if we should activate or not the camera feed
+        val safeArgs = SendTransactionFragmentArgs.fromBundle(arguments)
+        if (safeArgs.openCamera)
+            verifyCameraPermission()
+
+        fabOpenCamera.setOnClickListener { if (isCameraPreviewVisible) stopCameraPreview() else verifyCameraPermission() }
+
+        // Configure BalanceDetailViewModel to show the current balances
+        mBalanceDetailViewModel = ViewModelProviders.of(this).get(BalanceDetailViewModel::class.java)
+
+        mBalanceDetailViewModel.getAll().observe(this, Observer<List<BalanceDetail>> { balancesDetails ->
+            mBalancesDetails = balancesDetails
+            mBalancesDetailsAdapter = BalancesDetailsAdapter(context!!, android.R.layout.simple_spinner_item, mBalancesDetails!!)
+            spAsset.adapter = mBalancesDetailsAdapter
+
+            // Try to select the selectedAssetSymbol
+            for (i in 0 until mBalancesDetailsAdapter!!.count) {
+                if (mBalancesDetailsAdapter!!.getItem(i)!!.symbol == selectedAssetSymbol) {
+                    spAsset.setSelection(i)
+                    break
+                }
+            }
+        })
+
+        spAsset.onItemSelectedListener = object : AdapterView.OnItemSelectedListener{
+            override fun onNothingSelected(parent: AdapterView<*>?) { }
+
+            override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
+                val balance = mBalancesDetailsAdapter!!.getItem(position)!!
+                selectedAssetSymbol = balance.symbol
+
+                val amount = balance.amount.toDouble() / Math.pow(10.0, balance.precision.toDouble())
+
+                tvAvailableAssetAmount.text =
+                        String.format("%." + Math.min(balance.precision, 8) + "f %s", amount, balance.symbol)
+            }
+        }
+
+        fabSendTransaction.setOnClickListener { startSendTransferOperation() }
+        fabSendTransaction.hide()
+
+        authorityRepository = AuthorityRepository(context!!)
+
+        mDisposables.add(
+            authorityRepository!!.getWIF(userId!!, AuthorityType.ACTIVE.ordinal)
+                .subscribeOn(Schedulers.computation())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe { encryptedWIF ->
+                    try {
+                        wifKey = CryptoUtils.decrypt(context!!, encryptedWIF)
+                    } catch (e: AEADBadTagException) {
+                        Log.e(TAG, "AEADBadTagException. Class: " + e.javaClass + ", Msg: " + e.message)
+                    }
+
+                }
+        )
+
+        // Use RxJava Debounce to avoid making calls to the NetworkService on every text change event
+        mDisposables.add(
+            tietTo.textChanges()
+                .debounce(500, TimeUnit.MILLISECONDS)
+                .map { it.toString().trim() }
+                .filter { it.length > 1 }
+                .subscribe {
+                    val id = mNetworkService!!.sendMessage(GetAccountByName(it!!), GetAccountByName.REQUIRED_API)
+                    responseMap[id] = RESPONSE_GET_ACCOUNT_BY_NAME
+                }
+        )
+
+        // Use RxJava Debounce to update the Amount error only after the user stops writing for > 500 ms
+        mDisposables.add(
+            tietAmount.textChanges()
+                .debounce(500, TimeUnit.MILLISECONDS)
+                .filter { it.isNotEmpty() }
+                .map { it.toString().trim().toDouble() }
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe { validateAmount(it!!) }
+        )
+
+        // Connect to the RxBus, which receives events from the NetworkService
+        mDisposables.add(
+            RxBus.getBusInstance()
+                .asFlowable()
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe { handleIncomingMessage(it) }
+        )
+    }
+
+    private fun handleIncomingMessage(message: Any?) {
+        if (message is JsonRpcResponse<*>) {
+            if (responseMap.containsKey(message.id)) {
+                val responseType = responseMap[message.id]
+                when (responseType) {
+                    RESPONSE_GET_ACCOUNT_BY_NAME            -> handleAccountName(message.result)
+                    RESPONSE_GET_DYNAMIC_GLOBAL_PARAMETERS  -> handleDynamicGlobalProperties(message.result)
+                    RESPONSE_GET_REQUIRED_FEES              -> handleRequiredFees(message.result)
+                    RESPONSE_BROADCAST_TRANSACTION          -> handleBroadcastTransaction(message)
+                }
+                responseMap.remove(message.id)
+            }
+        } else if (message is ConnectionStatusUpdate) {
+            if (message.updateCode == ConnectionStatusUpdate.DISCONNECTED) {
+                // If we got a disconnection notification, we should clear our response map, since
+                // all its stored request ids will now be reset
+                responseMap.clear()
+            }
+        }
+    }
+
+    private fun handleAccountName(result: Any?) {
+        if (result is AccountProperties) {
+            mSelectedUserAccount = UserAccount(result.id, result.name)
+            destinationPublicKey = result.active.keyAuths.keys.iterator().next()
+            tilTo.isErrorEnabled = false
+            isToAccountCorrect = true
+        } else {
+            mSelectedUserAccount = null
+            destinationPublicKey = null
+            tilTo.error = "Invalid account"
+            isToAccountCorrect = false
+        }
+
+        enableDisableSendFAB()
+    }
+
+    private fun handleDynamicGlobalProperties(result: Any?) {
+        if (result is DynamicGlobalProperties) {
+            val expirationTime = (result.time.time / 1000) + Transaction.DEFAULT_EXPIRATION_TIME
+            val headBlockId = result.head_block_id
+            val headBlockNumber = result.head_block_number
+
+            transaction!!.blockData = BlockData(headBlockNumber, headBlockId, expirationTime)
+
+            val asset = Asset(mBalancesDetailsAdapter!!.getItem(spAsset.selectedItemPosition)!!.id)
+
+            val id = mNetworkService!!.sendMessage(GetRequiredFees(transaction!!, asset), GetRequiredFees.REQUIRED_API)
+            responseMap[id] = RESPONSE_GET_REQUIRED_FEES
+        } else {
+            // TODO unableToSendTransactionError()
+        }
+    }
+
+    private fun handleRequiredFees(result: Any?) {
+        if (result is List<*> && result[0] is AssetAmount) {
+            Log.d(TAG, "GetRequiredFees: " + transaction.toString())
+            transaction!!.setFees(result as List<AssetAmount>) // TODO find how to remove this warning
+
+            val id = mNetworkService!!.sendMessage(BroadcastTransaction(transaction), BroadcastTransaction.REQUIRED_API)
+            responseMap[id] = RESPONSE_BROADCAST_TRANSACTION
+        } else {
+            // TODO unableToSendTransactionError()
+        }
+    }
+
+    private fun handleBroadcastTransaction(message: JsonRpcResponse<*>) {
+        if (message.result == null && message.error == null) {
+            // TODO extract string resources
+            Toast.makeText(context!!, "Transaction sent!", Toast.LENGTH_SHORT).show()
+
+            // Remove information from the text fields and disable send button
+            tietTo.setText("")
+            tietAmount.setText("")
+            tietMemo.setText("")
+            isToAccountCorrect = false
+            isAmountCorrect = false
+            enableDisableSendFAB()
+        } else {
+            // TODO extract error messages to show a better explanation to the user
+            Toast.makeText(context!!, message.error.message, Toast.LENGTH_LONG).show()
+        }
+    }
+
+    private fun verifyCameraPermission() {
+        if (ContextCompat.checkSelfPermission(activity!!, Manifest.permission.CAMERA)
+            != PackageManager.PERMISSION_GRANTED) {
+            // Permission is not already granted
+            requestPermissions(arrayOf(android.Manifest.permission.CAMERA), REQUEST_CAMERA_PERMISSION)
+        } else {
+            // Permission is already granted
+            startCameraPreview()
+        }
+    }
+
+    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+
+        if (requestCode == REQUEST_CAMERA_PERMISSION) {
+            if ((grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED)) {
+                startCameraPreview()
+            } else {
+                // TODO extract string resource
+                Toast.makeText(context!!, "Camera permission is necessary to read QR codes.", Toast.LENGTH_SHORT).show()
+            }
+            return
+        }
+    }
+
+    private fun startCameraPreview() {
+        cameraPreview.visibility = View.VISIBLE
+        fabOpenCamera.setImageResource(R.drawable.ic_close)
+        isCameraPreviewVisible = true
+
+        // Configure QR scanner
+        cameraPreview.setFormats(listOf(BarcodeFormat.QR_CODE))
+        cameraPreview.setAspectTolerance(0.5f)
+        cameraPreview.setAutoFocus(true)
+        cameraPreview.setLaserColor(R.color.colorAccent)
+        cameraPreview.setMaskColor(R.color.colorAccent)
+        cameraPreview.setResultHandler(this)
+        cameraPreview.startCamera()
+    }
+
+    private fun stopCameraPreview() {
+        cameraPreview.visibility = View.INVISIBLE
+        fabOpenCamera.setImageResource(R.drawable.ic_camera)
+        isCameraPreviewVisible = false
+        cameraPreview.stopCamera()
+    }
+
+    override fun handleResult(result: Result?) {
+        try {
+            val invoice = Invoice.fromQrCode(result!!.text)
+
+            Log.d(TAG, "QR Code read: " + invoice.toJsonString())
+
+            tietTo.setText(invoice.to)
+
+            for (i in 0 until mBalancesDetailsAdapter!!.count) {
+                if (mBalancesDetailsAdapter!!.getItem(i)!!.symbol == invoice.currency.toUpperCase()) {
+                    spAsset.setSelection(i)
+                    break
+                }
+            }
+            tietMemo.setText(invoice.memo)
+
+
+            var amount = 0.0
+            for (nextItem in invoice.lineItems) {
+                amount += nextItem.quantity * nextItem.price
+            }
+            // TODO Improve pattern to account for different asset precisions
+            val df = DecimalFormat("####.#####")
+            df.roundingMode = RoundingMode.CEILING
+            df.decimalFormatSymbols = DecimalFormatSymbols(Locale.getDefault())
+            tietAmount.setText(df.format(amount))
+
+        }catch (e: Exception) {
+            Log.d(TAG, "Invoice error: " + e.message)
+        }
+    }
+
+    private fun validateAmount(amount: Double) {
+        if (mBalancesDetailsAdapter?.isEmpty != false) return
+        val balance = mBalancesDetailsAdapter?.getItem(spAsset.selectedItemPosition) ?: return
+        val currentAmount = balance.amount.toDouble() / Math.pow(10.0, balance.precision.toDouble())
+
+        if (currentAmount < amount) {
+            // TODO extract string resource
+            tilAmount.error = "Not enough funds"
+            isAmountCorrect = false
+        } else {
+            tilAmount.isErrorEnabled = false
+            isAmountCorrect = true
+        }
+
+        enableDisableSendFAB()
+    }
+
+    private fun enableDisableSendFAB() {
+        if (isToAccountCorrect && isAmountCorrect)
+            fabSendTransaction.show()
+        else
+            fabSendTransaction.hide()
+    }
+
+    private fun startSendTransferOperation() {
+        // Create TransferOperation
+        if (mNetworkService!!.isConnected) {
+            val balance = mBalancesDetailsAdapter!!.getItem(spAsset.selectedItemPosition)!!
+            val amount = (tietAmount.text.toString().toDouble() * Math.pow(10.0, balance.precision.toDouble())).toLong()
+
+            val transferAmount = AssetAmount(UnsignedLong.valueOf(amount), Asset(balance.id))
+
+            val operationBuilder = TransferOperationBuilder()
+                .setSource(mUserAccount)
+                .setDestination(mSelectedUserAccount)
+                .setTransferAmount(transferAmount)
+
+            val privateKey = ECKey.fromPrivate(DumpedPrivateKey.fromBase58(null, wifKey).key.privKeyBytes)
+
+            // Add memo if exists TODO enable memo
+//            val memoMsg = tietMemo.text.toString()
+//            if (memoMsg.isNotEmpty()) {
+//                val nonce = SecureRandomGenerator.getSecureRandom().nextLong().toBigInteger()
+//                val encryptedMemo = Memo.encryptMessage(privateKey, destinationPublicKey!!, nonce, memoMsg)
+//                val from = Address(ECKey.fromPublicOnly(privateKey.pubKey))
+//                val to = Address(destinationPublicKey!!.key)
+//                val memo = Memo(from, to, nonce, encryptedMemo)
+//                operationBuilder.setMemo(memo)
+//            }
+
+            val operations = ArrayList<BaseOperation>()
+            operations.add(operationBuilder.build())
+
+            transaction = Transaction(privateKey, null, operations)
+
+            val id = mNetworkService!!.sendMessage(GetDynamicGlobalProperties(),
+                GetDynamicGlobalProperties.REQUIRED_API)
+            responseMap[id] =  RESPONSE_GET_DYNAMIC_GLOBAL_PARAMETERS
+        } else
+            Log.d(TAG, "Network Service is not connected")
+    }
+
+    override fun onResume() {
+        super.onResume()
+        if (isCameraPreviewVisible)
+            startCameraPreview()
+
+        val intent = Intent(context, NetworkService::class.java)
+        if (context?.bindService(intent, this, Context.BIND_AUTO_CREATE) == true) {
+            mShouldUnbindNetwork = true
+        } else {
+            Log.e(TAG, "Binding to the network service failed.")
+        }
+    }
+
+    override fun onPause() {
+        super.onPause()
+
+        // Unbinding from network service
+        if (mShouldUnbindNetwork) {
+            context?.unbindService(this)
+            mShouldUnbindNetwork = false
+        }
+
+        if (!isCameraPreviewVisible)
+            stopCameraPreview()
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+
+        if (!mDisposables.isDisposed) mDisposables.dispose()
+    }
+
+    override fun onServiceDisconnected(name: ComponentName?) { }
+
+    override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
+        // We've bound to LocalService, cast the IBinder and get LocalService instance
+        val binder = service as NetworkService.LocalBinder
+        mNetworkService = binder.service
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/SettingsFragment.kt

@@ -0,0 +1,282 @@
+package cy.agorise.bitsybitshareswallet.fragments
+
+import android.content.*
+import android.content.Context.CLIPBOARD_SERVICE
+import android.os.Bundle
+import android.os.Handler
+import android.os.IBinder
+import android.preference.PreferenceManager
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Toast
+import androidx.fragment.app.Fragment
+import com.afollestad.materialdialogs.MaterialDialog
+import com.afollestad.materialdialogs.customview.customView
+import com.afollestad.materialdialogs.list.customListAdapter
+import cy.agorise.bitsybitshareswallet.BuildConfig
+import cy.agorise.bitsybitshareswallet.R
+import cy.agorise.bitsybitshareswallet.adapters.FullNodesAdapter
+import cy.agorise.bitsybitshareswallet.repositories.AuthorityRepository
+import cy.agorise.bitsybitshareswallet.utils.Constants
+import cy.agorise.bitsybitshareswallet.utils.CryptoUtils
+import cy.agorise.graphenej.BrainKey
+import cy.agorise.graphenej.api.android.NetworkService
+import cy.agorise.graphenej.api.android.RxBus
+import cy.agorise.graphenej.api.calls.GetDynamicGlobalProperties
+import cy.agorise.graphenej.models.DynamicGlobalProperties
+import cy.agorise.graphenej.models.JsonRpcResponse
+import cy.agorise.graphenej.network.FullNode
+import io.reactivex.Observer
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.disposables.CompositeDisposable
+import io.reactivex.disposables.Disposable
+import io.reactivex.schedulers.Schedulers
+import kotlinx.android.synthetic.main.fragment_settings.*
+import java.text.NumberFormat
+
+class SettingsFragment : Fragment(), ServiceConnection {
+    private val TAG = this.javaClass.simpleName
+
+    private var mDisposables = CompositeDisposable()
+
+    /* Network service connection */
+    private var mNetworkService: NetworkService? = null
+
+    /** Flag used to keep track of the NetworkService binding state */
+    private var mShouldUnbindNetwork: Boolean = false
+
+    // Dialog displaying the list of nodes and their latencies
+    private var mNodesDialog: MaterialDialog? = null
+
+    /** Adapter that holds the FullNode list used in the Bitshares nodes modal */
+    private var nodesAdapter: FullNodesAdapter? = null
+
+    private val mHandler = Handler()
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        setHasOptionsMenu(true)
+
+        return inflater.inflate(R.layout.fragment_settings, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        initAutoCloseSwitch()
+
+        initNightModeSwitch()
+
+        btnViewBrainKey.setOnClickListener { getBrainkey(it) }
+
+        tvNetworkStatus.setOnClickListener { v ->
+            if (mNetworkService != null) {
+                // PublishSubject used to announce full node latencies updates
+                val fullNodePublishSubject = mNetworkService!!.nodeLatencyObservable
+                fullNodePublishSubject?.observeOn(AndroidSchedulers.mainThread())?.subscribe(nodeLatencyObserver)
+
+                val fullNodes = mNetworkService!!.nodes
+
+                nodesAdapter = FullNodesAdapter(v.context)
+                nodesAdapter!!.add(fullNodes)
+
+                mNodesDialog = MaterialDialog(v.context)
+                    .title(text = String.format("%s v%s", getString(R.string.app_name), BuildConfig.VERSION_NAME))
+                    .message(text = getString(R.string.title__bitshares_nodes_dialog, "-------"))
+                    .customListAdapter(nodesAdapter as FullNodesAdapter)
+                    .negativeButton(android.R.string.ok) {
+                        mHandler.removeCallbacks(mRequestDynamicGlobalPropertiesTask)
+                    }
+
+                mNodesDialog?.show()
+
+                // Registering a recurrent task used to poll for dynamic global properties requests
+                mHandler.post(mRequestDynamicGlobalPropertiesTask)
+            }
+        }
+
+        // Connect to the RxBus, which receives events from the NetworkService
+        mDisposables.add(
+            RxBus.getBusInstance()
+                .asFlowable()
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe { handleIncomingMessage(it) }
+        )
+    }
+
+    /**
+     * Observer used to be notified about node latency measurement updates.
+     */
+    private val nodeLatencyObserver = object : Observer<FullNode> {
+        override fun onSubscribe(d: Disposable) {
+            mDisposables.add(d)
+        }
+
+        override fun onNext(fullNode: FullNode) {
+            if (!fullNode.isRemoved)
+                nodesAdapter?.add(fullNode)
+            else
+                nodesAdapter?.remove(fullNode)
+        }
+
+        override fun onError(e: Throwable) {
+            Log.e(TAG, "nodeLatencyObserver.onError.Msg: " + e.message)
+        }
+
+        override fun onComplete() {}
+    }
+
+    private fun handleIncomingMessage(message: Any?) {
+        if (message is JsonRpcResponse<*>) {
+            if (message.result is DynamicGlobalProperties) {
+                val dynamicGlobalProperties = message.result as DynamicGlobalProperties
+                if (mNodesDialog != null && mNodesDialog?.isShowing == true) {
+                    val blockNumber = NumberFormat.getInstance().format(dynamicGlobalProperties.head_block_number)
+                    mNodesDialog?.message(text = getString(R.string.title__bitshares_nodes_dialog, blockNumber))
+                }
+            }
+        }
+    }
+
+    /**
+     * Task used to obtain frequent updates on the global dynamic properties object
+     */
+    private val mRequestDynamicGlobalPropertiesTask = object : Runnable {
+        override fun run() {
+            if (mNetworkService != null) {
+                if (mNetworkService?.isConnected == true) {
+                    mNetworkService?.sendMessage(GetDynamicGlobalProperties(), GetDynamicGlobalProperties.REQUIRED_API)
+                } else {
+                    Log.d(TAG, "NetworkService exists but is not connected")
+                }
+            } else {
+                Log.d(TAG, "NetworkService reference is null")
+            }
+            mHandler.postDelayed(this, Constants.BLOCK_PERIOD)
+        }
+    }
+
+    /**
+     * Fetches the relevant preference from the SharedPreferences and configures the corresponding switch accordingly,
+     * and adds a listener to the said switch to store the preference in case the user changes it.
+     */
+    private fun initAutoCloseSwitch() {
+        val autoCloseOn = PreferenceManager.getDefaultSharedPreferences(context)
+            .getBoolean(Constants.KEY_AUTO_CLOSE_ACTIVATED, true)
+
+        switchAutoClose.isChecked = autoCloseOn
+
+        switchAutoClose.setOnCheckedChangeListener { buttonView, isChecked ->
+            PreferenceManager.getDefaultSharedPreferences(buttonView.context).edit()
+                .putBoolean(Constants.KEY_AUTO_CLOSE_ACTIVATED, isChecked).apply()
+        }
+    }
+
+    /**
+     * Fetches the relevant preference from the SharedPreferences and configures the corresponding switch accordingly,
+     * and adds a listener to the said switch to store the preference in case the user changes it. Also makes a call to
+     * recreate the activity and apply the selected theme.
+     */
+    private fun initNightModeSwitch() {
+        val nightModeOn = PreferenceManager.getDefaultSharedPreferences(context)
+            .getBoolean(Constants.KEY_NIGHT_MODE_ACTIVATED, false)
+
+        switchNightMode.isChecked = nightModeOn
+
+        switchNightMode.setOnCheckedChangeListener { buttonView, isChecked ->
+
+            PreferenceManager.getDefaultSharedPreferences(buttonView.context).edit()
+                .putBoolean(Constants.KEY_NIGHT_MODE_ACTIVATED, isChecked).apply()
+
+            // Recreates the activity to apply the selected theme
+            activity?.recreate()
+        }
+    }
+
+    /**
+     * Obtains the brainKey from the authorities db table for the current user account and if it is not null it passes
+     * the brainKey to a method to show it in a nice MaterialDialog
+     */
+    private fun getBrainkey(view: View) {
+        val userId = PreferenceManager.getDefaultSharedPreferences(view.context)
+            .getString(Constants.KEY_CURRENT_ACCOUNT_ID, "") ?: ""
+
+        val authorityRepository = AuthorityRepository(view.context)
+
+        mDisposables.add(authorityRepository.get(userId)
+            .subscribeOn(Schedulers.computation())
+            .observeOn(AndroidSchedulers.mainThread())
+            .subscribe { authority ->
+                if (authority != null) {
+                    val plainBrainKey = CryptoUtils.decrypt(view.context, authority.encryptedBrainKey)
+                    val plainSequenceNumber = CryptoUtils.decrypt(view.context, authority.encryptedSequenceNumber)
+                    val sequenceNumber = Integer.parseInt(plainSequenceNumber)
+                    val brainKey = BrainKey(plainBrainKey, sequenceNumber)
+                    showBrainKeyDialog(view, brainKey)
+                }
+            }
+        )
+    }
+
+    /**
+     * Shows the plain brainkey in a dialog so that the user can view and Copy it.
+     */
+    private fun showBrainKeyDialog(view: View, brainKey: BrainKey) {
+        MaterialDialog(view.context).show {
+            title(text = "BrainKey")
+            message(text = brainKey.brainKey)
+            customView(R.layout.dialog_copy_brainkey)
+            cancelable(false)
+            positiveButton(android.R.string.copy) {
+                Toast.makeText(it.context, "Copied to clipboard", Toast.LENGTH_SHORT).show()
+                val clipboard = it.context.getSystemService(CLIPBOARD_SERVICE) as ClipboardManager
+                val clip = ClipData.newPlainText("label", brainKey.brainKey)
+                clipboard.primaryClip = clip
+                it.dismiss()
+            }
+        }
+    }
+
+    override fun onResume() {
+        super.onResume()
+
+        val intent = Intent(context, NetworkService::class.java)
+        if (context?.bindService(intent, this, Context.BIND_AUTO_CREATE) == true) {
+            mShouldUnbindNetwork = true
+        } else {
+            Log.e(TAG, "Binding to the network service failed.")
+        }
+    }
+
+    override fun onPause() {
+        super.onPause()
+
+        // Unbinding from network service
+        if (mShouldUnbindNetwork) {
+            context?.unbindService(this)
+            mShouldUnbindNetwork = false
+        }
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+
+        if (!mDisposables.isDisposed) mDisposables.dispose()
+    }
+
+    override fun onServiceDisconnected(name: ComponentName?) {
+        tvNetworkStatus.setCompoundDrawablesRelativeWithIntrinsicBounds(null, null,
+            resources.getDrawable(R.drawable.ic_disconnected, null), null)
+    }
+
+    override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
+        // We've bound to LocalService, cast the IBinder and get LocalService instance
+        val binder = service as NetworkService.LocalBinder
+        mNetworkService = binder.service
+
+        tvNetworkStatus.setCompoundDrawablesRelativeWithIntrinsicBounds(null, null,
+            resources.getDrawable(R.drawable.ic_connected, null), null)
+    }
+}
+

app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/TransactionsFragment.kt

@@ -1,34 +1,216 @@
 package cy.agorise.bitsybitshareswallet.fragments
 
-import androidx.lifecycle.ViewModelProviders
+import android.graphics.Point
 import android.os.Bundle
+import android.preference.PreferenceManager
+import android.view.*
+import androidx.appcompat.widget.SearchView
 import androidx.fragment.app.Fragment
-import android.view.LayoutInflater
+import androidx.fragment.app.FragmentActivity
-import android.view.View
+import androidx.lifecycle.Observer
-import android.view.ViewGroup
+import androidx.lifecycle.ViewModelProviders
-
+import androidx.recyclerview.widget.LinearLayoutManager
+import com.jakewharton.rxbinding3.appcompat.queryTextChangeEvents
 import cy.agorise.bitsybitshareswallet.R
-import cy.agorise.bitsybitshareswallet.viewmodels.TransactionsViewModel
+import cy.agorise.bitsybitshareswallet.adapters.TransfersDetailsAdapter
+import cy.agorise.bitsybitshareswallet.database.joins.TransferDetail
+import cy.agorise.bitsybitshareswallet.utils.BounceTouchListener
+import cy.agorise.bitsybitshareswallet.utils.Constants
+import cy.agorise.bitsybitshareswallet.viewmodels.TransferDetailViewModel
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.disposables.CompositeDisposable
+import kotlinx.android.synthetic.main.fragment_transactions.*
+import java.util.*
+import java.util.concurrent.TimeUnit
+import kotlin.collections.ArrayList
 
-class TransactionsFragment : Fragment() {
+class TransactionsFragment : Fragment(), FilterOptionsDialog.OnFilterOptionsSelectedListener {
 
-    companion object {
+    private lateinit var mTransferDetailViewModel: TransferDetailViewModel
-        fun newInstance() = TransactionsFragment()
-    }
 
-    private lateinit var viewModel: TransactionsViewModel
+    private lateinit var transfersDetailsAdapter: TransfersDetailsAdapter
+
+    private val transfersDetails = ArrayList<TransferDetail>()
+    private val filteredTransfersDetails = ArrayList<TransferDetail>()
+
+    /** Variables used to filter the transaction items  */
+    private var filterQuery = ""
+    private var filterTransactionsDirection = 0
+    private var filterDateRangeAll = true
+    private var filterStartDate = 0L
+    private var filterEndDate = 0L
+    private var filterCryptocurrencyAll = true
+    private var filterCryptocurrency = "BTS"
+    private var filterFiatAmountAll = true
+    private var filterFromFiatAmount = 0L
+    private var filterToFiatAmount = 500L
+
+    private var mDisposables = CompositeDisposable()
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        setHasOptionsMenu(true)
 
-    override fun onCreateView(
-        inflater: LayoutInflater, container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View? {
         return inflater.inflate(R.layout.fragment_transactions, container, false)
     }
 
-    override fun onActivityCreated(savedInstanceState: Bundle?) {
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onActivityCreated(savedInstanceState)
+        super.onViewCreated(view, savedInstanceState)
-        viewModel = ViewModelProviders.of(this).get(TransactionsViewModel::class.java)
+
-        // TODO: Use the ViewModel
+        val userId = PreferenceManager.getDefaultSharedPreferences(context)
+            .getString(Constants.KEY_CURRENT_ACCOUNT_ID, "") ?: ""
+
+        transfersDetailsAdapter = TransfersDetailsAdapter(context!!)
+        rvTransactions.adapter = transfersDetailsAdapter
+        rvTransactions.layoutManager = LinearLayoutManager(context)
+
+        // Configure TransferDetailViewModel to fetch the transaction history
+        mTransferDetailViewModel = ViewModelProviders.of(this).get(TransferDetailViewModel::class.java)
+
+        mTransferDetailViewModel.getAll(userId).observe(this, Observer<List<TransferDetail>> { transfersDetails ->
+            this.transfersDetails.clear()
+            this.transfersDetails.addAll(transfersDetails)
+            applyFilterOptions(false)
+        })
+
+        // Set custom touch listener to handle bounce/stretch effect
+        val bounceTouchListener = BounceTouchListener(rvTransactions)
+        rvTransactions.setOnTouchListener(bounceTouchListener)
+
+        // Initialize filter options
+        val calendar = Calendar.getInstance()
+        filterEndDate = calendar.timeInMillis / 1000
+        calendar.add(Calendar.MONTH, -2)
+        filterStartDate = calendar.timeInMillis / 1000
     }
 
+    override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
+        inflater.inflate(R.menu.menu_transactions, menu)
+
+        // Adds listener for the SearchView
+        val searchItem = menu.findItem(R.id.menu_search)
+        val searchView = searchItem.actionView as SearchView
+        mDisposables.add(
+            searchView.queryTextChangeEvents()
+                .skipInitialValue()
+                .debounce(500, TimeUnit.MILLISECONDS)
+                .map { it.queryText.toString().toLowerCase() }
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe {
+                    filterQuery = it
+                    applyFilterOptions()
+                }
+        )
+
+        // Adjust SearchView width to avoid pushing other menu items out of the screen
+        searchView.maxWidth = getScreenWidth(activity) * 3 / 5
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem?): Boolean {
+        return when (item?.itemId) {
+            R.id.menu_filter -> {
+                val filterOptionsDialog = FilterOptionsDialog.newInstance(
+                    filterTransactionsDirection, filterDateRangeAll, filterStartDate * 1000,
+                    filterEndDate * 1000, filterCryptocurrencyAll, filterCryptocurrency,
+                    filterFiatAmountAll, filterFromFiatAmount, filterToFiatAmount
+                )
+                filterOptionsDialog.show(childFragmentManager, "filter-options-tag")
+                true
+            }
+            R.id.menu_export -> {
+                // TODO add export options
+                true
+            }
+            else -> super.onOptionsItemSelected(item)
+        }
+    }
+
+    /**
+     * Returns the screen width in pixels for the given [FragmentActivity]
+     */
+    private fun getScreenWidth(activity: FragmentActivity?): Int {
+        if (activity == null)
+            return 200
+
+        val size = Point()
+        activity.windowManager.defaultDisplay.getSize(size)
+        return size.x
+    }
+
+    /**
+     * Filters the TransferDetail list given the user selected filter options.
+     * TODO move this to a background thread
+     */
+    private fun applyFilterOptions(scrollToTop: Boolean = true) {
+        // Clean the filtered list
+        filteredTransfersDetails.clear()
+
+        for (transferDetail in transfersDetails) {
+            // Filter by transfer direction
+            if (transferDetail.direction) { // Transfer sent
+                if (filterTransactionsDirection == 1)
+                // Looking for received transfers only
+                    continue
+            } else { // Transfer received
+                if (filterTransactionsDirection == 2)
+                // Looking for sent transactions only
+                    continue
+            }
+
+            // Filter by date range
+            if (!filterDateRangeAll && (transferDetail.date < filterStartDate || transferDetail.date > filterEndDate))
+                continue
+
+            // Filter by cryptocurrency
+            if (!filterCryptocurrencyAll && transferDetail.cryptoSymbol != filterCryptocurrency)
+                continue
+
+//            // Filter by fiat amount
+//            if (!filterFiatAmountAll && (transferDetail.fiatAmount < filterFromFiatAmount || transferDetail.fiatAmount > filterToFiatAmount))
+//                continue
+
+            // Filter by search query
+            val text = (transferDetail.from ?: "").toLowerCase() + (transferDetail.to ?: "").toLowerCase()
+            if (text.contains(filterQuery, ignoreCase = true)) {
+                filteredTransfersDetails.add(transferDetail)
+            }
+        }
+
+        // Replaces the list of TransferDetail items with the new filtered list
+        transfersDetailsAdapter.replaceAll(filteredTransfersDetails)
+
+        if (scrollToTop)
+            rvTransactions.scrollToPosition(0)
+    }
+
+    /**
+     *
+     */
+    override fun onFilterOptionsSelected(
+        filterTransactionsDirection: Int,
+        filterDateRangeAll: Boolean,
+        filterStartDate: Long,
+        filterEndDate: Long,
+        filterCryptocurrencyAll: Boolean,
+        filterCryptocurrency: String,
+        filterFiatAmountAll: Boolean,
+        filterFromFiatAmount: Long,
+        filterToFiatAmount: Long
+    ) {
+        this.filterTransactionsDirection = filterTransactionsDirection
+        this.filterDateRangeAll = filterDateRangeAll
+        this.filterStartDate = filterStartDate / 1000
+        this.filterEndDate = filterEndDate / 1000
+        this.filterCryptocurrencyAll = filterCryptocurrencyAll
+        this.filterCryptocurrency = filterCryptocurrency
+        this.filterFiatAmountAll = filterFiatAmountAll
+        this.filterFromFiatAmount = filterFromFiatAmount
+        this.filterToFiatAmount = filterToFiatAmount
+        applyFilterOptions(true)
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+
+        if (!mDisposables.isDisposed) mDisposables.dispose()
+    }
 }

app/src/main/java/cy/agorise/bitsybitshareswallet/models/Ambassador.kt

@@ -0,0 +1,5 @@
+package cy.agorise.bitsybitshareswallet.models
+
+class Ambassador(var id: String?, var account: String?, var country: String?, var city: String?) {
+    var cityId: String? = null
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/models/AmbassadorLocation.kt

@@ -0,0 +1,29 @@
+package cy.agorise.bitsybitshareswallet.models
+
+import androidx.annotation.NonNull
+
+class AmbassadorLocation(
+    var id: String?,
+    var name: String?,
+    var country: String?
+) : Comparable<AmbassadorLocation> {
+
+    override fun toString(): String {
+        return this.name!!
+    }
+
+    override fun equals(other: Any?): Boolean {
+        return other is AmbassadorLocation && id == other.id
+    }
+
+    override fun compareTo(@NonNull other: AmbassadorLocation): Int {
+        return name!!.compareTo(other.name!!)
+    }
+
+    override fun hashCode(): Int {
+        var result = id?.hashCode() ?: 0
+        result = 31 * result + (name?.hashCode() ?: 0)
+        result = 31 * result + (country?.hashCode() ?: 0)
+        return result
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/models/HistoricalOperationEntry.kt

@@ -0,0 +1,68 @@
+package cy.agorise.bitsybitshareswallet.models
+
+import cy.agorise.graphenej.AssetAmount
+import cy.agorise.graphenej.models.OperationHistory
+import cy.agorise.graphenej.operations.TransferOperation
+
+/**
+ * This class is very similar to the OperationHistory, but while the later is used to deserialize
+ * the transfer information exactly as it comes from the 'get_relative_account_history' API call,
+ * this class is used to represent a single entry in the local database.
+ *
+ *
+ * Every entry in the transfers table needs a bit more information than what is provided by the
+ * HistoricalTransfer. We need to know the specific timestamp of a transaction for instance, instead
+ * of just a block number.
+ *
+ *
+ * There's also the data used for the equivalent fiat value.
+ *
+ *
+ * Created by nelson on 12/18/16.
+ */
+class HistoricalOperationEntry {
+    var historicalTransfer: OperationHistory? = null
+    var timestamp: Long = 0
+    var equivalentValue: AssetAmount? = null
+
+    override fun toString(): String {
+        if (historicalTransfer != null) {
+            // Since for now we know that all stored historical operations are 'transfers'
+            val op = historicalTransfer!!.operation as TransferOperation
+            var memo = "?"
+            if (op.memo != null && op.memo.plaintextMessage != null) {
+                memo = op.memo.plaintextMessage
+            }
+            return String.format(
+                "<%d, %s -> %s, %d of %s, memo: %s>",
+                timestamp,
+                op.from.objectId,
+                op.to.objectId,
+                op.assetAmount.amount.toLong(),
+                op.assetAmount.asset.objectId,
+                memo
+            )
+        } else {
+            return "<>"
+        }
+    }
+
+    override fun hashCode(): Int {
+        return historicalTransfer!!.objectId.hashCode()
+    }
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) {
+            return true
+        }
+        if (other == null) {
+            return false
+        }
+        return if (javaClass != other.javaClass) {
+            false
+        } else {
+            val otherEntry = other as HistoricalOperationEntry?
+            otherEntry!!.historicalTransfer!!.objectId == this.historicalTransfer!!.objectId
+        }
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/models/Merchant.kt

@@ -0,0 +1,37 @@
+package cy.agorise.bitsybitshareswallet.models
+
+import java.util.*
+
+class Merchant {
+
+    var id: String? = null
+    var address: String? = null
+    var phone: String? = null
+    var name: String? = null
+    var lat: Float = 0F
+    var lon: Float = 0F
+    var city: String? = null
+    var country: String? = null
+    var createdAt: Date? = null
+    var updatedAt: Date? = null
+    var __v: Int = 0
+
+    constructor() {}
+    constructor(id: String) {
+        this.id = id
+    }
+
+    constructor(_id: String, address: String, phone: String, name: String, lat: Float, lon: Float, city: String, country: String, createdAt: Date, updatedAt: Date, __v: Int) {
+        this.id = _id
+        this.address = address
+        this.phone = phone
+        this.name = name
+        this.lat = lat
+        this.lon = lon
+        this.city = city
+        this.country = country
+        this.createdAt = createdAt
+        this.updatedAt = updatedAt
+        this.__v = __v
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/network/AmbassadorService.kt

@@ -0,0 +1,21 @@
+package cy.agorise.bitsybitshareswallet.network
+
+import cy.agorise.bitsybitshareswallet.models.Ambassador
+import cy.agorise.bitsybitshareswallet.models.AmbassadorLocation
+import cy.agorise.bitsybitshareswallet.models.Merchant
+import retrofit2.Call
+import retrofit2.http.GET
+import retrofit2.http.Query
+
+interface AmbassadorService {
+
+    //https://ambpay.palmpay.io/api/v1/merchants?%24sort%5Baccount%5D=1&%24limit=50&%24skip=0
+    @get:GET("/api/v1/merchants?%24sort%5Baccount%5D=1&%24limit=50&%24skip=0")
+    val allMerchants: Call<FeathersResponse<Merchant>>
+
+    @GET("/api/v1/ambassadors")
+    fun getAmbassadors(@Query("cityId") cityId: String): Call<FeathersResponse<Ambassador>>
+
+    @GET("/api/v1/cities")
+    fun getAllCitiesSync(@Query("\$skip") skip: Long): Call<FeathersResponse<AmbassadorLocation>>
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/network/FeathersResponse.kt

@@ -0,0 +1,19 @@
+package cy.agorise.bitsybitshareswallet.network
+
+class FeathersResponse<T>(private val error: Throwable?) {
+    var total: Long = 0
+    var limit: Long = 0
+    var skip: Long = 0
+    var data: List<T>? = null
+
+    val isSuccessful: Boolean
+        get() = error == null && data != null
+
+    fun message(): String {
+        return if (error != null) {
+            error.message!!
+        } else {
+            ""
+        }
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/processors/TransfersLoader.kt

@@ -0,0 +1,330 @@
+package cy.agorise.bitsybitshareswallet.processors
+
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.content.ServiceConnection
+import android.os.IBinder
+import android.preference.PreferenceManager
+import android.util.Log
+import cy.agorise.bitsybitshareswallet.database.entities.Transfer
+import cy.agorise.bitsybitshareswallet.models.HistoricalOperationEntry
+import cy.agorise.bitsybitshareswallet.repositories.AuthorityRepository
+import cy.agorise.bitsybitshareswallet.repositories.TransferRepository
+import cy.agorise.bitsybitshareswallet.utils.Constants
+import cy.agorise.bitsybitshareswallet.utils.CryptoUtils
+import cy.agorise.graphenej.*
+import cy.agorise.graphenej.api.ConnectionStatusUpdate
+import cy.agorise.graphenej.api.android.NetworkService
+import cy.agorise.graphenej.api.android.RxBus
+import cy.agorise.graphenej.api.calls.GetRelativeAccountHistory
+import cy.agorise.graphenej.errors.ChecksumException
+import cy.agorise.graphenej.models.JsonRpcResponse
+import cy.agorise.graphenej.models.OperationHistory
+import cy.agorise.graphenej.operations.TransferOperation
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.disposables.CompositeDisposable
+import io.reactivex.functions.Consumer
+import io.reactivex.schedulers.Schedulers
+import org.bitcoinj.core.DumpedPrivateKey
+import org.bitcoinj.core.ECKey
+import java.util.*
+import javax.crypto.AEADBadTagException
+
+/**
+ * This class is responsible for loading the local database with all past transfer operations of the
+ * currently selected account.
+ *
+ * The procedure used to load the database in 3 steps:
+ *
+ * 1- Load all transfer operations
+ * 2- Load all missing times
+ * 3- Load all missing equivalent times
+ *
+ * Since the 'get_relative_account_history' will not provide either timestamps nor equivalent values
+ * for every transfer, we must first load all historical transfer operations, and then proceed to
+ * handle those missing columns.
+ */
+class TransfersLoader(private var mContext: Context?): ServiceConnection {
+
+    private val TAG = this.javaClass.simpleName
+
+    /** Constant that specifies if we are on debug mode */
+    private val DEBUG = false
+
+    /* Constant used to fix the number of historical transfers to fetch from the network in one batch */
+    private val HISTORICAL_TRANSFER_BATCH_SIZE = 100
+
+    private val RESPONSE_GET_RELATIVE_ACCOUNT_HISTORY = 0
+
+    private var mDisposables = CompositeDisposable()
+
+    /* Current user account */
+    private var mCurrentAccount: UserAccount? = null
+
+    /** Variable holding the current user's private key in the WIF format */
+    private var wifKey: String? = null
+
+    /** Repository to access and update Transfers */
+    private var transferRepository: TransferRepository? = null
+
+    /** Repository to access and update Authorities */
+    private var authorityRepository: AuthorityRepository? = null
+
+    /* Network service connection */
+    private var mNetworkService: NetworkService? = null
+
+    /* Counter used to keep track of the transfer history batch count */
+    private var historicalTransferCount = 0
+
+    // Used to keep track of the current state TODO this may not be needed
+    private var mState = State.IDLE
+
+    /**
+     * Flag used to keep track of the NetworkService binding state
+     */
+    private var mShouldUnbindNetwork: Boolean = false
+
+    private var lastId: Long = 0
+
+    // Map used to keep track of request and response id pairs
+    private val responseMap = HashMap<Long, Int>()
+
+    /**
+     * Enum class used to keep track of the current state of the loader
+     */
+    private enum class State {
+        IDLE,
+        LOADING_MISSING_TIMES,
+        LOADING_EQ_VALUES,
+        CANCELLED,
+        FINISHED
+    }
+
+    init {
+        transferRepository = TransferRepository(mContext!!)
+        authorityRepository = AuthorityRepository(mContext!!)
+
+        val pref = PreferenceManager.getDefaultSharedPreferences(mContext)
+        val userId = pref.getString(Constants.KEY_CURRENT_ACCOUNT_ID, "")
+        if (userId != "") {
+            mCurrentAccount = UserAccount(userId)
+            mDisposables.add(authorityRepository!!.getWIF(userId!!, AuthorityType.MEMO.ordinal)
+                .subscribeOn(Schedulers.computation())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe { encryptedWIF ->
+                    try {
+                        wifKey = CryptoUtils.decrypt(mContext!!, encryptedWIF)
+                    } catch (e: AEADBadTagException) {
+                        Log.e(TAG, "AEADBadTagException. Class: " + e.javaClass + ", Msg: " + e.message)
+                    }
+
+                }
+            )
+            mDisposables.add(RxBus.getBusInstance()
+                .asFlowable()
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(Consumer { message ->
+                    if (mState == State.FINISHED) return@Consumer
+                    if (message is JsonRpcResponse<*>) {
+                        if (message.result is List<*>) {
+                            if (responseMap.containsKey(message.id)) {
+                                val responseType = responseMap[message.id]
+                                when (responseType) {
+                                    RESPONSE_GET_RELATIVE_ACCOUNT_HISTORY -> handleOperationList(message.result as List<OperationHistory>)
+                                }
+                                responseMap.remove(message.id)
+                            }
+                        }
+                    } else if (message is ConnectionStatusUpdate) {
+                        if (message.updateCode == ConnectionStatusUpdate.DISCONNECTED) {
+                            // If we got a disconnection notification, we should clear our response map, since
+                            // all its stored request ids will now be reset
+                            responseMap.clear()
+                        }
+                    }
+                })
+            )
+        } else {
+            // If there is no current user, we should not do anything
+            mState = State.CANCELLED
+        }
+
+        onStart()
+    }
+
+    override fun onServiceDisconnected(name: ComponentName?) {
+        mShouldUnbindNetwork = false
+    }
+
+    override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
+        // We've bound to LocalService, cast the IBinder and get LocalService instance
+        val binder = service as NetworkService.LocalBinder
+        mNetworkService = binder.service
+
+        // Start the transfers update
+        startTransfersUpdateProcedure()
+    }
+
+    private fun onStart() {
+        if (mState != State.CANCELLED) {
+            val intent = Intent(mContext, NetworkService::class.java)
+            if (mContext!!.bindService(intent, this, Context.BIND_AUTO_CREATE)) {
+                mShouldUnbindNetwork = true
+            } else {
+                Log.e(TAG, "Binding to the network service failed.")
+            }
+        }
+    }
+
+    /**
+     * Starts the procedure that will try to update the 'transfers' table
+     */
+    private fun startTransfersUpdateProcedure() {
+        if (DEBUG) {
+            // If we are in debug mode, we first erase all entries in the 'transfer' table
+            transferRepository!!.deleteAll()
+        }
+        mDisposables.add(
+            transferRepository!!.getCount()
+                .subscribeOn(Schedulers.computation())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe { transferCount ->
+                     if (transferCount > 0) {
+                        // If we already have some transfers in the database, we might want to skip the request
+                        // straight to the last batch
+                        historicalTransferCount = Math.floor((transferCount /
+                                HISTORICAL_TRANSFER_BATCH_SIZE).toDouble()).toInt()
+                    }
+                    // Retrieving account transactions
+                    loadNextOperationsBatch()
+                }
+        )
+    }
+
+    /**
+     * Handles a freshly obtained list of OperationHistory instances. This is how the full node
+     * answers our 'get_relative_account_history' API call.
+     *
+     * This response however, has to be processed before being stored in the local database.
+     *
+     * @param operationHistoryList List of OperationHistory instances
+     */
+    private fun handleOperationList(operationHistoryList: List<OperationHistory>) {
+        historicalTransferCount++
+
+        val insertedCount = transferRepository!!.insertAll(processOperationList(operationHistoryList))
+        // TODO return number of inserted rows
+//        Log.d(TAG, String.format("Inserted count: %d, list size: %d", insertedCount, operationHistoryList.size))
+        if (/* insertedCount == 0 && */ operationHistoryList.isEmpty()) {
+            onDestroy()
+        } else {
+
+            // If we inserted more than one operation, we cannot yet be sure we've reached the
+            // end of the operation list, so we issue another call to the 'get_relative_account_history'
+            // API call
+            loadNextOperationsBatch()
+        }
+    }
+
+    /**
+     * Method used to issue a new 'get_relative_account_history' API call. This is expected to retrieve
+     * at most HISTORICAL_TRANSFER_BATCH_SIZE operations.
+     */
+    private fun loadNextOperationsBatch() {
+        val stop = historicalTransferCount * HISTORICAL_TRANSFER_BATCH_SIZE
+        val start = stop + HISTORICAL_TRANSFER_BATCH_SIZE
+        lastId = mNetworkService!!.sendMessage(
+            GetRelativeAccountHistory(
+                mCurrentAccount,
+                stop,
+                HISTORICAL_TRANSFER_BATCH_SIZE,
+                start
+            ), GetRelativeAccountHistory.REQUIRED_API
+        )
+        responseMap[lastId] = RESPONSE_GET_RELATIVE_ACCOUNT_HISTORY
+    }
+
+    /**
+     * Method that will transform a list of OperationHistory instances to a list of
+     * HistoricalOperationEntry.
+     *
+     * The HistoricalOperationEntry class is basically a wrapper around the OperationHistory class
+     * provided by the Graphenej library. It is used to better reflect what we store in the internal
+     * database for every transfer and expands the OperationHistory class basically adding
+     * two things:
+     *
+     * 1- A timestamp
+     * 2- An AssetAmount instance to represent the equivalent value in a fiat value
+     *
+     * @param operations    List of OperationHistory instances
+     * @return              List of HistoricalOperationEntry instances
+     */
+    private fun processOperationList(operations: List<OperationHistory>): List<Transfer> {
+        val transfers = ArrayList<Transfer>()
+
+        if (wifKey == null) {
+            // In case of key storage corruption, we give up on processing this list of operations
+            return transfers
+        }
+        val memoKey = DumpedPrivateKey.fromBase58(null, wifKey!!).key
+        val publicKey = PublicKey(ECKey.fromPublicOnly(memoKey.pubKey))
+        val myAddress = Address(publicKey.key)
+
+
+        for (historicalOp in operations) {
+            if (historicalOp.operation == null || historicalOp.operation !is TransferOperation) {
+                // Some historical operations might not be transfer operations.
+                // As of right now non-transfer operations get deserialized as null
+                continue
+            }
+
+            val entry = HistoricalOperationEntry()
+            val op = historicalOp.operation as TransferOperation
+
+            val memo = op.memo
+            if (memo.byteMessage != null) {
+                val destinationAddress = memo.destination
+                try {
+                    if (destinationAddress.toString() == myAddress.toString()) {
+                        val decryptedMessage = Memo.decryptMessage(memoKey, memo.source, memo.nonce, memo.byteMessage)
+                        memo.plaintextMessage = decryptedMessage
+                    }
+                } catch (e: ChecksumException) {
+                    Log.e(TAG, "ChecksumException. Msg: " + e.message)
+                } catch (e: NullPointerException) {
+                    // This is expected in case the decryption fails, so no need to log this event.
+                    Log.e(TAG, "NullPointerException. Msg: " + e.message)
+                } catch (e: Exception) {
+                    Log.e(TAG, "Exception while decoding memo. Msg: " + e.message)
+                }
+            }
+
+            val transfer = Transfer(
+                historicalOp.objectId,
+                historicalOp.blockNum,
+                entry.timestamp,
+                op.fee.amount.toLong(),
+                op.fee.asset.objectId,
+                op.from.objectId,
+                op.to.objectId,
+                op.assetAmount.amount.toLong(),
+                op.assetAmount.asset.objectId,
+                memo.plaintextMessage
+            )
+
+            transfers.add(transfer)
+        }
+        return transfers
+    }
+
+    private fun onDestroy() {
+        Log.d(TAG, "Destroying TransfersLoader")
+        if (!mDisposables.isDisposed) mDisposables.dispose()
+        if (mShouldUnbindNetwork) {
+            mContext!!.unbindService(this)
+            mShouldUnbindNetwork = false
+        }
+        mContext = null
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/repositories/AssetRepository.kt

@@ -0,0 +1,35 @@
+package cy.agorise.bitsybitshareswallet.repositories
+
+import android.content.Context
+import android.os.AsyncTask
+import androidx.lifecycle.LiveData
+import cy.agorise.bitsybitshareswallet.database.daos.AssetDao
+import cy.agorise.bitsybitshareswallet.database.BitsyDatabase
+import cy.agorise.bitsybitshareswallet.database.entities.Asset
+
+class AssetRepository internal constructor(context: Context) {
+
+    private val mAssetDao: AssetDao
+
+    init {
+        val db = BitsyDatabase.getDatabase(context)
+        mAssetDao = db!!.assetDao()
+    }
+
+    fun getAll(): LiveData<List<Asset>> {
+        return mAssetDao.getAll()
+    }
+
+    fun insertAll(assets: List<Asset>) {
+        insertAllAsyncTask(mAssetDao).execute(assets)
+    }
+
+    private class insertAllAsyncTask internal constructor(private val mAsyncTaskDao: AssetDao) :
+        AsyncTask<List<Asset>, Void, Void>() {
+
+        override fun doInBackground(vararg assets: List<Asset>): Void? {
+            mAsyncTaskDao.insertAll(assets[0])
+            return null
+        }
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/repositories/AuthorityRepository.kt

@@ -0,0 +1,39 @@
+package cy.agorise.bitsybitshareswallet.repositories
+
+import android.content.Context
+import android.os.AsyncTask
+import cy.agorise.bitsybitshareswallet.database.daos.AuthorityDao
+import cy.agorise.bitsybitshareswallet.database.BitsyDatabase
+import cy.agorise.bitsybitshareswallet.database.entities.Authority
+import io.reactivex.Single
+
+class AuthorityRepository internal constructor(context: Context) {
+
+    private val mAuthorityDao: AuthorityDao
+
+    init {
+        val db = BitsyDatabase.getDatabase(context)
+        mAuthorityDao = db!!.authorityDao()
+    }
+
+    fun insert(authority: Authority) {
+        insertAsyncTask(mAuthorityDao).execute(authority)
+    }
+
+    fun get(userId: String): Single<Authority> {
+        return mAuthorityDao.get(userId)
+    }
+
+    fun getWIF(userId: String, authorityType: Int): Single<String> {
+        return mAuthorityDao.getWIF(userId, authorityType)
+    }
+
+    private class insertAsyncTask internal constructor(private val mAsyncTaskDao: AuthorityDao) :
+        AsyncTask<Authority, Void, Void>() {
+
+        override fun doInBackground(vararg authorities: Authority): Void? {
+            mAsyncTaskDao.insert(authorities[0])
+            return null
+        }
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/repositories/BalanceDetailRepository.kt

@@ -0,0 +1,21 @@
+package cy.agorise.bitsybitshareswallet.repositories
+
+import android.content.Context
+import androidx.lifecycle.LiveData
+import cy.agorise.bitsybitshareswallet.database.BitsyDatabase
+import cy.agorise.bitsybitshareswallet.database.joins.BalanceDetail
+import cy.agorise.bitsybitshareswallet.database.joins.BalanceDetailDao
+
+class BalanceDetailRepository internal constructor(context: Context) {
+
+    private val mBalanceDetailDao: BalanceDetailDao
+
+    init {
+        val db = BitsyDatabase.getDatabase(context)
+        mBalanceDetailDao = db!!.balanceDetailDao()
+    }
+
+    fun getAll(): LiveData<List<BalanceDetail>> {
+        return mBalanceDetailDao.getAll()
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/repositories/BalanceRepository.kt

@@ -0,0 +1,39 @@
+package cy.agorise.bitsybitshareswallet.repositories
+
+import android.content.Context
+import android.os.AsyncTask
+import androidx.lifecycle.LiveData
+import cy.agorise.bitsybitshareswallet.database.daos.BalanceDao
+import cy.agorise.bitsybitshareswallet.database.BitsyDatabase
+import cy.agorise.bitsybitshareswallet.database.entities.Balance
+
+class BalanceRepository internal constructor(context: Context) {
+
+    private val mBalanceDao: BalanceDao
+
+    init {
+        val db = BitsyDatabase.getDatabase(context)
+        mBalanceDao = db!!.balanceDao()
+    }
+
+    fun insertAll(balances: List<Balance>) {
+        insertAllAsyncTask(mBalanceDao).execute(balances)
+    }
+
+    fun getAll(): LiveData<List<Balance>> {
+        return mBalanceDao.getAll()
+    }
+
+    fun getMissingAssetIds(): LiveData<List<String>> {
+        return mBalanceDao.getMissingAssetIds()
+    }
+
+    private class insertAllAsyncTask internal constructor(private val mAsyncTaskDao: BalanceDao) :
+        AsyncTask<List<Balance>, Void, Void>() {
+
+        override fun doInBackground(vararg transfers: List<Balance>): Void? {
+            mAsyncTaskDao.insertAll(transfers[0])
+            return null
+        }
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/repositories/TransferDetailRepository.kt

@@ -0,0 +1,22 @@
+package cy.agorise.bitsybitshareswallet.repositories
+
+import android.content.Context
+import androidx.lifecycle.LiveData
+import cy.agorise.bitsybitshareswallet.database.BitsyDatabase
+import cy.agorise.bitsybitshareswallet.database.joins.TransferDetail
+import cy.agorise.bitsybitshareswallet.database.joins.TransferDetailDao
+
+class TransferDetailRepository internal constructor(context: Context) {
+
+    private val mTransferDetailDao: TransferDetailDao
+
+    init {
+        val db = BitsyDatabase.getDatabase(context)
+        mTransferDetailDao = db!!.transferDetailDao()
+    }
+
+    fun getAll(userId: String): LiveData<List<TransferDetail>> {
+        return mTransferDetailDao.getAll(userId)
+    }
+
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/repositories/TransferRepository.kt

@@ -0,0 +1,70 @@
+package cy.agorise.bitsybitshareswallet.repositories
+
+import android.content.Context
+import android.os.AsyncTask
+import androidx.lifecycle.LiveData
+import cy.agorise.bitsybitshareswallet.database.BitsyDatabase
+import cy.agorise.bitsybitshareswallet.database.daos.TransferDao
+import cy.agorise.bitsybitshareswallet.database.entities.Transfer
+import io.reactivex.Single
+
+class TransferRepository internal constructor(context: Context) {
+
+    private val mTransferDao: TransferDao
+
+    init {
+        val db = BitsyDatabase.getDatabase(context)
+        mTransferDao = db!!.transferDao()
+    }
+
+    fun insertAll(transfers: List<Transfer>) {
+        insertAllAsyncTask(mTransferDao).execute(transfers)
+    }
+
+    fun setBlockTime(blockNumber: Long, timestamp: Long) {
+        setBlockTimeAsyncTask(mTransferDao).execute(Pair(blockNumber, timestamp))
+    }
+
+    fun getAll(): LiveData<List<Transfer>> {
+        return mTransferDao.getAll()
+    }
+
+    fun getCount(): Single<Int> {
+        return mTransferDao.getCount()
+    }
+
+    fun getTransferBlockNumberWithMissingTime(): LiveData<Long> {
+        return mTransferDao.getTransferBlockNumberWithMissingTime()
+    }
+
+    fun deleteAll() {
+        deleteAllAsyncTask(mTransferDao).execute()
+    }
+
+    private class insertAllAsyncTask internal constructor(private val mAsyncTaskDao: TransferDao) :
+        AsyncTask<List<Transfer>, Void, Void>() {
+
+        override fun doInBackground(vararg transfers: List<Transfer>): Void? {
+            mAsyncTaskDao.insertAll(transfers[0])
+            return null
+        }
+    }
+
+    private class setBlockTimeAsyncTask internal constructor(private val mAsyncTaskDao: TransferDao) :
+        AsyncTask<Pair<Long, Long>, Void, Void>() {
+
+        override fun doInBackground(vararg pair: Pair<Long, Long>): Void? {
+            mAsyncTaskDao.setBlockTime(pair[0].first, pair[0].second)
+            return null
+        }
+    }
+
+    private class deleteAllAsyncTask internal constructor(private val mAsyncTaskDao: TransferDao) :
+        AsyncTask<Void, Void, Void>() {
+
+        override fun doInBackground(vararg params: Void?): Void? {
+            mAsyncTaskDao.deleteAll()
+            return null
+        }
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/repositories/UserAccountRepository.kt

@@ -0,0 +1,52 @@
+package cy.agorise.bitsybitshareswallet.repositories
+
+import android.content.Context
+import android.os.AsyncTask
+import androidx.lifecycle.LiveData
+import cy.agorise.bitsybitshareswallet.database.BitsyDatabase
+import cy.agorise.bitsybitshareswallet.database.daos.UserAccountDao
+import cy.agorise.bitsybitshareswallet.database.entities.UserAccount
+
+class UserAccountRepository internal constructor(context: Context) {
+
+    private val mUserAccountDao: UserAccountDao
+
+    init {
+        val db = BitsyDatabase.getDatabase(context)
+        mUserAccountDao = db!!.userAccountDao()
+    }
+
+    fun insert(userAccount: UserAccount) {
+        insertAsyncTask(mUserAccountDao).execute(userAccount)
+    }
+
+    fun insertAll(userAccounts: List<UserAccount>) {
+        insertAllAsyncTask(mUserAccountDao).execute(userAccounts)
+    }
+
+    fun getUserAccount(id: String): LiveData<UserAccount> {
+        return mUserAccountDao.getUserAccount(id)
+    }
+
+    fun getMissingUserAccountIds(): LiveData<List<String>> {
+        return mUserAccountDao.getMissingAccountIds()
+    }
+
+    private class insertAsyncTask internal constructor(private val mAsyncTaskDao: UserAccountDao) :
+        AsyncTask<UserAccount, Void, Void>() {
+
+        override fun doInBackground(vararg userAccounts: UserAccount): Void? {
+            mAsyncTaskDao.insert(userAccounts[0])
+            return null
+        }
+    }
+
+    private class insertAllAsyncTask internal constructor(private val mAsyncTaskDao: UserAccountDao) :
+        AsyncTask<List<UserAccount>, Void, Void>() {
+
+        override fun doInBackground(vararg userAccounts: List<UserAccount>): Void? {
+            mAsyncTaskDao.insertAll(userAccounts[0])
+            return null
+        }
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/utils/BitsyApplication.kt

@@ -0,0 +1,52 @@
+package cy.agorise.bitsybitshareswallet.utils
+
+import android.app.Application
+import cy.agorise.graphenej.api.ApiAccess
+import cy.agorise.graphenej.api.android.NetworkServiceManager
+
+class BitsyApplication : Application() {
+
+    private val BITSHARES_NODE_URLS = arrayOf(
+        // PP private nodes
+        "wss://nl.palmpay.io/ws",
+
+        // Other public nodes
+        "wss://bitshares.nu/ws",                   // Stockholm, Sweden
+        "wss://bitshares.openledger.info/ws",      // Openledger node
+        "wss://dallas.bitshares.apasia.tech/ws",	// Dallas, USA
+        "wss://atlanta.bitshares.apasia.tech/ws",	// Atlanta, USA
+        "wss://dex.rnglab.org",				// Amsterdam, Netherlands
+        "wss://citadel.li/node"
+    )
+
+    override fun onCreate() {
+        super.onCreate()
+
+        // Specifying some important information regarding the connection, such as the
+        // credentials and the requested API accesses
+        val requestedApis = ApiAccess.API_DATABASE or ApiAccess.API_HISTORY or ApiAccess.API_NETWORK_BROADCAST
+        val networkManager = NetworkServiceManager.Builder()
+            .setUserName("")
+            .setPassword("")
+            .setRequestedApis(requestedApis)
+            .setCustomNodeUrls(setupNodes())
+            .setAutoConnect(true)
+            .setNodeLatencyVerification(true)
+            .build(this)
+
+        /*
+        * Registering this class as a listener to all activity's callback cycle events, in order to
+        * better estimate when the user has left the app and it is safe to disconnect the websocket connection
+        */
+        registerActivityLifecycleCallbacks(networkManager)
+    }
+
+    private fun setupNodes(): String {
+        val stringBuilder = StringBuilder()
+        for (url in BITSHARES_NODE_URLS) {
+            stringBuilder.append(url).append(",")
+        }
+        stringBuilder.replace(stringBuilder.length - 1, stringBuilder.length, "")
+        return stringBuilder.toString()
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/utils/BounceTouchListener.kt

@@ -0,0 +1,213 @@
+package cy.agorise.bitsybitshareswallet.utils
+
+import android.animation.Animator
+import android.animation.AnimatorListenerAdapter
+import android.animation.ValueAnimator
+import android.view.MotionEvent
+import android.view.View
+import android.view.ViewGroup
+import android.view.animation.DecelerateInterpolator
+import androidx.core.view.MotionEventCompat
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.StaggeredGridLayoutManager
+
+class BounceTouchListener(private val mRecyclerView: RecyclerView) : View.OnTouchListener {
+
+    private var downCalled = false
+    private var mDownY: Float = 0.toFloat()
+    private var mSwipingDown: Boolean = false
+    private var mSwipingUp: Boolean = false
+    private val mInterpolator = DecelerateInterpolator(3f)
+    private var mActivePointerId = -99
+    private var mLastTouchY = -99f
+    private var mMaxAbsTranslation = -99
+
+    init {
+        mRecyclerView.pivotY = 0F
+    }
+
+    override fun onTouch(view: View, motionEvent: MotionEvent): Boolean {
+        val action = MotionEventCompat.getActionMasked(motionEvent)
+
+        when (action) {
+            MotionEvent.ACTION_DOWN -> {
+                onDownMotionEvent(motionEvent)
+                view.onTouchEvent(motionEvent)
+                downCalled = true
+                if (this.mRecyclerView.translationY == 0f) {
+                    return false
+                }
+            }
+            MotionEvent.ACTION_MOVE -> {
+                if (mActivePointerId == -99) {
+                    onDownMotionEvent(motionEvent)
+                    downCalled = true
+                }
+                val pointerIndex = MotionEventCompat.findPointerIndex(motionEvent, mActivePointerId)
+                val y = MotionEventCompat.getY(motionEvent, pointerIndex)
+                if (!hasHitTop() && !hasHitBottom() || !downCalled) {
+                    if (!downCalled) {
+                        downCalled = true
+                    }
+                    mDownY = y
+                    view.onTouchEvent(motionEvent)
+                    return false
+                }
+                val deltaY = y - mDownY
+                if (Math.abs(deltaY) > 0 && hasHitTop() && deltaY > 0) {
+                    mSwipingDown = true
+                    sendCancelEventToView(view, motionEvent)
+                }
+                if (Math.abs(deltaY) > 0 && hasHitBottom() && deltaY < 0) {
+                    mSwipingUp = true
+                    sendCancelEventToView(view, motionEvent)
+                }
+                if (mSwipingDown || mSwipingUp) {
+                    if (deltaY <= 0 && mSwipingDown || deltaY >= 0 && mSwipingUp) {
+                        mDownY = 0f
+                        mSwipingDown = false
+                        mSwipingUp = false
+                        downCalled = false
+                        val downEvent = MotionEvent.obtain(motionEvent)
+                        downEvent.action = MotionEvent.ACTION_DOWN or
+                                (MotionEventCompat.getActionIndex(motionEvent) shl MotionEventCompat.ACTION_POINTER_INDEX_SHIFT)
+                        view.onTouchEvent(downEvent)
+                    }
+                    var translation = (deltaY / Math.abs(deltaY) * Math.pow(Math.abs(deltaY).toDouble(), .8)).toInt()
+                    if (mMaxAbsTranslation > 0) {
+                        if (translation < 0) {
+                            translation = Math.max(-mMaxAbsTranslation, translation)
+                        } else {
+                            translation = Math.min(mMaxAbsTranslation, translation)
+                        }
+                    }
+                    mRecyclerView.translationY = translation.toFloat()
+                    translate(mRecyclerView.translationY)
+                    return true
+                }
+            }
+
+            MotionEvent.ACTION_UP -> {
+                mActivePointerId = -99
+                // cancel
+                mRecyclerView.animate()
+                    .setInterpolator(mInterpolator)
+                    .translationY(0f)
+                    .setDuration(600L)
+                    .setListener(object : AnimatorListenerAdapter() {
+                        override fun onAnimationStart(animation: Animator) {
+                            (animation as ValueAnimator).addUpdateListener {
+                                translate(mRecyclerView.translationY)
+                            }
+                            super.onAnimationStart(animation)
+                        }
+                    })
+
+                mDownY = 0f
+                mSwipingDown = false
+                mSwipingUp = false
+                downCalled = false
+            }
+
+            MotionEvent.ACTION_CANCEL -> {
+                mActivePointerId = -99
+            }
+
+            MotionEvent.ACTION_POINTER_UP -> {
+                val pointerIndex = MotionEventCompat.getActionIndex(motionEvent)
+                val pointerId = MotionEventCompat.getPointerId(motionEvent, pointerIndex)
+
+                if (pointerId == mActivePointerId) {
+                    val newPointerIndex = if (pointerIndex == 0) 1 else 0
+                    mLastTouchY = MotionEventCompat.getY(motionEvent, newPointerIndex)
+                    mActivePointerId = MotionEventCompat.getPointerId(motionEvent, newPointerIndex)
+
+                    if (this.mRecyclerView.translationY > 0) {
+                        mDownY = mLastTouchY - Math.pow(this.mRecyclerView.translationY.toDouble(), (10f / 8f).toDouble()).toInt()
+                        this.mRecyclerView.animate().cancel()
+                    } else if (this.mRecyclerView.translationY < 0) {
+                        mDownY = mLastTouchY +
+                                Math.pow((-this.mRecyclerView.translationY).toDouble(), (10f / 8f).toDouble()).toInt()
+                        this.mRecyclerView.animate().cancel()
+                    }
+                }
+            }
+        }
+        return false
+    }
+
+    private fun translate(translation: Float) {
+        val scale = 2 * translation / mRecyclerView.measuredHeight + 1
+        mRecyclerView.scaleY = Math.pow(scale.toDouble(), .6).toFloat()
+    }
+
+    private fun sendCancelEventToView(view: View, motionEvent: MotionEvent) {
+        (view as ViewGroup).requestDisallowInterceptTouchEvent(true)
+        val cancelEvent = MotionEvent.obtain(motionEvent)
+        cancelEvent.action = MotionEvent.ACTION_CANCEL or
+                (MotionEventCompat.getActionIndex(motionEvent) shl MotionEventCompat.ACTION_POINTER_INDEX_SHIFT)
+        view.onTouchEvent(cancelEvent)
+    }
+
+    private fun onDownMotionEvent(motionEvent: MotionEvent) {
+        val pointerIndex = MotionEventCompat.getActionIndex(motionEvent)
+        mLastTouchY = MotionEventCompat.getY(motionEvent, pointerIndex)
+        mActivePointerId = MotionEventCompat.getPointerId(motionEvent, 0)
+
+        if (this.mRecyclerView.translationY > 0) {
+            mDownY = mLastTouchY - Math.pow(this.mRecyclerView.translationY.toDouble(), (10f / 8f).toDouble()).toInt()
+            this.mRecyclerView.animate().cancel()
+        } else if (this.mRecyclerView.translationY < 0) {
+            mDownY = mLastTouchY + Math.pow((-this.mRecyclerView.translationY).toDouble(), (10f / 8f).toDouble()).toInt()
+            this.mRecyclerView.animate().cancel()
+        } else {
+            mDownY = mLastTouchY
+        }
+    }
+
+    private fun hasHitBottom(): Boolean {
+        val recyclerView = this.mRecyclerView
+        if (recyclerView.adapter != null && recyclerView.layoutManager != null) {
+            val adapter = recyclerView.adapter
+            if (adapter!!.itemCount > 0) {
+                val layoutManager = recyclerView.layoutManager
+                if (layoutManager is LinearLayoutManager) {
+                    val linearLayoutManager = layoutManager as LinearLayoutManager?
+                    return linearLayoutManager!!.findLastCompletelyVisibleItemPosition() == adapter.itemCount - 1
+                } else if (layoutManager is StaggeredGridLayoutManager) {
+                    val staggeredGridLayoutManager = layoutManager as StaggeredGridLayoutManager?
+                    val checks = staggeredGridLayoutManager!!.findLastCompletelyVisibleItemPositions(null)
+                    for (check in checks) {
+                        if (check == adapter.itemCount - 1)
+                            return true
+                    }
+                }
+            }
+        }
+        return false
+    }
+
+    private fun hasHitTop(): Boolean {
+        val recyclerView = this.mRecyclerView
+        if (recyclerView.adapter != null && recyclerView.layoutManager != null) {
+            val adapter = recyclerView.adapter
+            if (adapter!!.itemCount > 0) {
+                val layoutManager = recyclerView.layoutManager
+                if (layoutManager is LinearLayoutManager) {
+                    val linearLayoutManager = layoutManager as LinearLayoutManager?
+                    return linearLayoutManager!!.findFirstCompletelyVisibleItemPosition() == 0
+                } else if (layoutManager is StaggeredGridLayoutManager) {
+                    val staggeredGridLayoutManager = layoutManager as StaggeredGridLayoutManager?
+                    val checks = staggeredGridLayoutManager!!.findFirstCompletelyVisibleItemPositions(null)
+                    for (check in checks) {
+                        if (check == 0)
+                            return true
+                    }
+                }
+            }
+        }
+
+        return false
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/utils/Constants.kt

@@ -1,10 +1,51 @@
 package cy.agorise.bitsybitshareswallet.utils
 
-
 object Constants {
 
+    /** Key used to store the number of the last agreed License version */
+    const val KEY_LAST_AGREED_LICENSE_VERSION = "key_last_agreed_license_version"
+
+    /** Version of the currently used license */
+    const val CURRENT_LICENSE_VERSION = 1
+
+    /** Key used to store if the initial setup is already done or not */
+    const val KEY_INITIAL_SETUP_DONE = "key_initial_setup_done"
+
+    /** Key used to store the id value of the currently active account in the shared preferences */
+    const val KEY_CURRENT_ACCOUNT_ID = "key_current_account_id"
+
+    /** The minimum required length for a PIN number */
+    const val MIN_PIN_LENGTH = 6
+
+    /** The user selected encrypted PIN */
+    const val KEY_ENCRYPTED_PIN = "key_encrypted_pin"
+
     /**
-     * Key used to store the night mode setting into the shared preferences
+     * LTM accounts come with an expiration date expressed as this string.
+     * This is used to recognize such accounts from regular ones.
      */
-    val KEY_NIGHT_MODE_ACTIVATED = "key_night_mode_activated"
+    const val LIFETIME_EXPIRATION_DATE = "1969-12-31T23:59:59"
+
+    /**
+     * Time period between two consecutive requests to the full node performed whenever we have
+     * open payment requests as a matter of redundancy.
+     */
+    const val MISSING_PAYMENT_CHECK_PERIOD: Long = 5000
+
+    /** Time period to wait to send a request to the NetworkService, and retry in case it is still not connected */
+    const val NETWORK_SERVICE_RETRY_PERIOD: Long = 5000
+
+    /** Bitshares block period */
+    const val BLOCK_PERIOD: Long = 3000
+
+    /**  Key used to store the number of operations that the currently selected account had last time we checked */
+    const val KEY_ACCOUNT_OPERATION_COUNT = "key_account_operation_count"
+
+    /** Key used to store the auto close app if no user activity setting into the shared preferences */
+    const val KEY_AUTO_CLOSE_ACTIVATED = "key_auto_close_activated"
+
+    /** Key used to store the night mode setting into the shared preferences */
+    const val KEY_NIGHT_MODE_ACTIVATED = "key_night_mode_activated"
+
+    const val MERCHANTS_WEBSERVICE_URL = "https://websvc.palmpay.io/"
 }

app/src/main/java/cy/agorise/bitsybitshareswallet/utils/CryptoUtils.kt

@@ -0,0 +1,72 @@
+package cy.agorise.bitsybitshareswallet.utils
+
+import android.content.Context
+import android.preference.PreferenceManager
+
+import com.moldedbits.r2d2.R2d2
+
+import javax.crypto.AEADBadTagException
+
+/**
+ * Class that provides encryption/decryption support by using the key management framework provided
+ * by the KeyStore system.
+ *
+ * The implemented scheme was taken from [this](https://medium.com/@ericfu/securely-storing-secrets-in-an-android-application-501f030ae5a3)> blog post.
+ *
+ * @see [Android Keystore System](https://developer.android.com/training/articles/keystore.html)
+ */
+
+object CryptoUtils {
+
+    /**
+     * Encrypts and stores a key-value pair in the shared preferences
+     * @param context The application context
+     * @param key The key to be used to reference the data
+     * @param value The actual value to be stored
+     */
+    fun put(context: Context, key: String, value: String) {
+        val r2d2 = R2d2(context)
+        val encrypted = r2d2.encryptData(value)
+        PreferenceManager
+            .getDefaultSharedPreferences(context)
+            .edit()
+            .putString(key, encrypted)
+            .apply()
+    }
+
+    /**
+     * Retrieves and decrypts an encrypted value from the shared preferences
+     * @param context The application context
+     * @param key The key used to reference the data
+     * @return The plaintext version of the encrypted data
+     */
+    operator fun get(context: Context, key: String): String {
+        val r2d2 = R2d2(context)
+        val encrypted = PreferenceManager.getDefaultSharedPreferences(context).getString(key, null)
+        return r2d2.decryptData(encrypted)
+    }
+
+    /**
+     * Encrypts some data
+     * @param context The application context
+     * @param plaintext The plaintext version of the data
+     * @return Encrypted data
+     */
+    fun encrypt(context: Context, plaintext: String): String {
+        val r2d2 = R2d2(context)
+        return r2d2.encryptData(plaintext)
+    }
+
+    /**
+     * Decrypts some data
+     * @param context The application context
+     * @param ciphertext The ciphertext version of the data
+     * @return Decrypted data
+     */
+    @Throws(AEADBadTagException::class)
+    fun decrypt(context: Context, ciphertext: String): String {
+        val r2d2 = R2d2(context)
+        return r2d2.decryptData(ciphertext)
+    }
+}
+

app/src/main/java/cy/agorise/bitsybitshareswallet/utils/Helper.kt

@@ -0,0 +1,60 @@
+package cy.agorise.bitsybitshareswallet.utils
+
+import android.content.Context
+import android.graphics.Bitmap
+import android.graphics.Canvas
+import android.net.Uri
+import android.util.Log
+import android.view.View
+import androidx.core.content.FileProvider
+import java.io.File
+import java.io.FileOutputStream
+import java.io.IOException
+
+/**
+ * Contains methods that are helpful in different parts of the app
+ */
+class Helper {
+
+    companion object {
+        private val TAG = "Helper"
+
+        /**
+         * Creates and returns a Bitmap from the contents of a View, does not matter
+         * if it is a simple view or a ViewGroup like a ConstraintLayout or a LinearLayout.
+         *
+         * @param view The view that is gonna be pictured.
+         * @return The generated image from the given view.
+         */
+        fun loadBitmapFromView(view: View): Bitmap {
+            val bitmap = Bitmap.createBitmap(view.width, view.height, Bitmap.Config.ARGB_8888)
+            val canvas = Canvas(bitmap)
+            view.draw(canvas)
+
+            return bitmap
+        }
+
+        fun saveTemporalBitmap(context: Context, bitmap: Bitmap): Uri {
+            // save bitmap to cache directory
+            try {
+                val cachePath = File(context.cacheDir, "images")
+                if (!cachePath.mkdirs())
+                // don't forget to make the directory
+                    Log.d(TAG, "shareBitmapImage creating cache images folder")
+
+                val stream = FileOutputStream(cachePath.toString() + "/image.png") // overwrites this image every time
+                bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream)
+                stream.close()
+            } catch (e: IOException) {
+                Log.d(TAG, "shareBitmapImage error: " + e.message)
+            }
+
+            // Send intent to share image+text
+            val imagePath = File(context.cacheDir, "images")
+            val newFile = File(imagePath, "image.png")
+
+            // Create and return image uri
+            return FileProvider.getUriForFile(context, "cy.agorise.bitsybitshareswallet.FileProvider", newFile)
+        }
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/utils/SquaredImageView.kt

@@ -1,30 +0,0 @@
-package cy.agorise.bitsybitshareswallet.utils
-
-import android.content.Context
-import android.util.AttributeSet
-import androidx.annotation.Nullable
-import androidx.appcompat.widget.AppCompatImageView
-
-/**
- * Created by xd on 1/24/18.
- * ImageView which adjusts its size to always create a square
- */
-
-class SquaredImageView : AppCompatImageView {
-
-    constructor(context: Context) : super(context)
-
-    constructor(context: Context, @Nullable attrs: AttributeSet) : super(context, attrs)
-    constructor(context: Context, @Nullable attrs: AttributeSet, defStyleAttr: Int) : super(
-        context,
-        attrs,
-        defStyleAttr
-    )
-
-    override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
-        super.onMeasure(widthMeasureSpec, heightMeasureSpec)
-
-        val size = Math.min(measuredWidth, measuredHeight)
-        setMeasuredDimension(size, size)
-    }
-}

app/src/main/java/cy/agorise/bitsybitshareswallet/viewmodels/AssetViewModel.kt

@@ -0,0 +1,15 @@
+package cy.agorise.bitsybitshareswallet.viewmodels
+
+import android.app.Application
+import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.LiveData
+import cy.agorise.bitsybitshareswallet.database.entities.Asset
+import cy.agorise.bitsybitshareswallet.repositories.AssetRepository
+
+class AssetViewModel(application: Application) : AndroidViewModel(application) {
+    private var mRepository = AssetRepository(application)
+
+    internal fun getAll(): LiveData<List<Asset>> {
+        return mRepository.getAll()
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/viewmodels/BalanceDetailViewModel.kt

@@ -0,0 +1,16 @@
+package cy.agorise.bitsybitshareswallet.viewmodels
+
+import android.app.Application
+import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.LiveData
+import cy.agorise.bitsybitshareswallet.database.joins.BalanceDetail
+import cy.agorise.bitsybitshareswallet.repositories.BalanceDetailRepository
+
+
+class BalanceDetailViewModel(application: Application) : AndroidViewModel(application) {
+    private var mRepository = BalanceDetailRepository(application)
+
+    internal fun getAll(): LiveData<List<BalanceDetail>> {
+        return mRepository.getAll()
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/viewmodels/BalanceViewModel.kt

@@ -0,0 +1,19 @@
+package cy.agorise.bitsybitshareswallet.viewmodels
+
+import android.app.Application
+import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.LiveData
+import cy.agorise.bitsybitshareswallet.database.entities.Balance
+import cy.agorise.bitsybitshareswallet.repositories.BalanceRepository
+
+class BalanceViewModel(application: Application) : AndroidViewModel(application) {
+    private var mRepository = BalanceRepository(application)
+
+    internal fun getMissingAssetIds(): LiveData<List<String>> {
+        return mRepository.getMissingAssetIds()
+    }
+
+    fun insertAll(balances: List<Balance>) {
+        mRepository.insertAll(balances)
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/viewmodels/BalancesViewModel.kt

@@ -1,7 +0,0 @@
-package cy.agorise.bitsybitshareswallet.viewmodels
-
-import androidx.lifecycle.ViewModel
-
-class BalancesViewModel : ViewModel() {
-    // TODO: Implement the ViewModel
-}

app/src/main/java/cy/agorise/bitsybitshareswallet/viewmodels/MerchantsViewModel.kt

@@ -1,7 +0,0 @@
-package cy.agorise.bitsybitshareswallet.viewmodels
-
-import androidx.lifecycle.ViewModel;
-
-class MerchantsViewModel : ViewModel() {
-    // TODO: Implement the ViewModel
-}

app/src/main/java/cy/agorise/bitsybitshareswallet/viewmodels/TransactionsViewModel.kt

@@ -1,7 +0,0 @@
-package cy.agorise.bitsybitshareswallet.viewmodels
-
-import androidx.lifecycle.ViewModel;
-
-class TransactionsViewModel : ViewModel() {
-    // TODO: Implement the ViewModel
-}

app/src/main/java/cy/agorise/bitsybitshareswallet/viewmodels/TransferDetailViewModel.kt

@@ -0,0 +1,15 @@
+package cy.agorise.bitsybitshareswallet.viewmodels
+
+import android.app.Application
+import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.LiveData
+import cy.agorise.bitsybitshareswallet.database.joins.TransferDetail
+import cy.agorise.bitsybitshareswallet.repositories.TransferDetailRepository
+
+class TransferDetailViewModel(application: Application) : AndroidViewModel(application) {
+    private var mRepository = TransferDetailRepository(application)
+
+    internal fun getAll(userId: String): LiveData<List<TransferDetail>> {
+        return mRepository.getAll(userId)
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/viewmodels/TransferViewModel.kt

@@ -0,0 +1,18 @@
+package cy.agorise.bitsybitshareswallet.viewmodels
+
+import android.app.Application
+import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.LiveData
+import cy.agorise.bitsybitshareswallet.repositories.TransferRepository
+
+class TransferViewModel(application: Application) : AndroidViewModel(application) {
+    private var mRepository = TransferRepository(application)
+
+    internal fun setBlockTime(blockNumber: Long, timestamp: Long) {
+        mRepository.setBlockTime(blockNumber, timestamp)
+    }
+
+    internal fun getTransferBlockNumberWithMissingTime(): LiveData<Long> {
+        return mRepository.getTransferBlockNumberWithMissingTime()
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/viewmodels/UserAccountViewModel.kt

@@ -0,0 +1,27 @@
+package cy.agorise.bitsybitshareswallet.viewmodels
+
+import android.app.Application
+import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.LiveData
+import cy.agorise.bitsybitshareswallet.database.entities.UserAccount
+import cy.agorise.bitsybitshareswallet.repositories.UserAccountRepository
+
+class UserAccountViewModel(application: Application) : AndroidViewModel(application) {
+    private var mRepository = UserAccountRepository(application)
+
+    internal fun getUserAccount(id: String): LiveData<UserAccount> {
+        return mRepository.getUserAccount(id)
+    }
+
+    internal fun getMissingUserAccountIds(): LiveData<List<String>> {
+        return mRepository.getMissingUserAccountIds()
+    }
+
+//    fun insert(userAccount: UserAccount) {
+//        mRepository.insert(userAccount)
+//    }
+
+    fun insertAll(userAccounts: List<UserAccount>) {
+        mRepository.insertAll(userAccounts)
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/views/MyTextInputAutoCompleteTextView.kt

@@ -0,0 +1,45 @@
+package cy.agorise.bitsybitshareswallet.views
+
+import android.content.Context
+import android.util.AttributeSet
+import com.google.android.material.textfield.TextInputLayout
+import android.view.inputmethod.InputConnection
+import android.view.inputmethod.EditorInfo
+import androidx.appcompat.widget.AppCompatAutoCompleteTextView
+
+/**
+ * Custom AutoCompleteTextView to be used inside a TextInputLayout, so that they can share their hint
+ * From https://stackoverflow.com/a/41864063/5428997
+ */
+class MyTextInputAutoCompleteTextView : AppCompatAutoCompleteTextView {
+
+    constructor(context: Context) : super(context)
+
+    constructor(context: Context, attrs: AttributeSet) : super(context, attrs)
+
+    constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr)
+
+    override fun onCreateInputConnection(outAttrs: EditorInfo): InputConnection? {
+        val ic = super.onCreateInputConnection(outAttrs)
+        if (ic != null && outAttrs.hintText == null) {
+            // If we don't have a hint and our parent is a TextInputLayout, use it's hint for the
+            // EditorInfo. This allows us to display a hint in 'extract mode'.
+            val parent = parent
+            if (parent is TextInputLayout) {
+                outAttrs.hintText = parent.hint
+            }
+        }
+        // An EditText that lets you use actions ("Done", "Go", etc.) on multi-line edits.
+        val imeActions = outAttrs.imeOptions and EditorInfo.IME_MASK_ACTION
+        if (imeActions and EditorInfo.IME_ACTION_DONE != 0) {
+            // clear the existing action
+            outAttrs.imeOptions = outAttrs.imeOptions xor imeActions
+            // set the DONE action
+            outAttrs.imeOptions = outAttrs.imeOptions or EditorInfo.IME_ACTION_DONE
+        }
+        if (outAttrs.imeOptions and EditorInfo.IME_FLAG_NO_ENTER_ACTION != 0) {
+            outAttrs.imeOptions = outAttrs.imeOptions and EditorInfo.IME_FLAG_NO_ENTER_ACTION.inv()
+        }
+        return ic
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/views/MyTextInputEditText.java

@@ -0,0 +1,43 @@
+package cy.agorise.bitsybitshareswallet.views;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.inputmethod.EditorInfo;
+import android.view.inputmethod.InputConnection;
+
+import com.google.android.material.textfield.TextInputEditText;
+
+// An EditText that lets you use actions ("Done", "Go", etc.) on multi-line edits.
+public class MyTextInputEditText extends TextInputEditText
+{
+    public MyTextInputEditText(Context context)
+    {
+        super(context);
+    }
+
+    public MyTextInputEditText(Context context, AttributeSet attrs)
+    {
+        super(context, attrs);
+    }
+
+    public MyTextInputEditText(Context context, AttributeSet attrs, int defStyle)
+    {
+        super(context, attrs, defStyle);
+    }
+
+    @Override
+    public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
+        InputConnection connection = super.onCreateInputConnection(outAttrs);
+        int imeActions = outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION;
+        if ((imeActions&EditorInfo.IME_ACTION_DONE) != 0) {
+            // clear the existing action
+            outAttrs.imeOptions ^= imeActions;
+            // set the DONE action
+            outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE;
+        }
+        if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NO_ENTER_ACTION) != 0) {
+            outAttrs.imeOptions &= ~EditorInfo.IME_FLAG_NO_ENTER_ACTION;
+        }
+        return connection;
+    }
+}

app/src/main/res/anim/item_animation_from_bottom.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+     android:duration="700">
+
+    <translate
+        android:interpolator="@android:anim/accelerate_decelerate_interpolator"
+        android:fromYDelta="50%p"
+        android:toYDelta="0"/>
+
+    <alpha
+        android:fromAlpha="0"
+        android:toAlpha="1"
+        android:interpolator="@android:anim/accelerate_decelerate_interpolator"/>
+
+</set>

app/src/main/res/anim/layout_animation_from_bottom.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layoutAnimation
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:animation="@anim/item_animation_from_bottom"
+    android:delay="15%"
+    android:animationOrder="normal"/>

app/src/main/res/anim/slide_in_left.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <translate android:fromXDelta="-100%" android:toXDelta="0%"
+               android:fromYDelta="0%" android:toYDelta="0%"
+               android:duration="700"/>
+</set>

app/src/main/res/anim/slide_in_right.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <translate android:fromXDelta="100%" android:toXDelta="0%"
+               android:fromYDelta="0%" android:toYDelta="0%"
+               android:duration="700"/>
+</set>

app/src/main/res/anim/slide_out_left.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <translate android:fromXDelta="0%" android:toXDelta="-100%"
+               android:fromYDelta="0%" android:toYDelta="0%"
+               android:duration="700"/>
+</set>

app/src/main/res/anim/slide_out_right.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <translate android:fromXDelta="0%" android:toXDelta="100%"
+               android:fromYDelta="0%" android:toYDelta="0%"
+               android:duration="700"/>
+</set>

app/src/main/res/animator/button_state_list_anim.xml

@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android"
+          xmlns:tools="http://schemas.android.com/tools">
+
+    <!-- Pressed state -->
+    <item
+            android:state_enabled="true"
+            android:state_pressed="true">
+        <set>
+            <objectAnimator
+                    android:duration="100"
+                    android:propertyName="translationZ"
+                    android:valueTo="2dp"
+                    android:valueType="floatType" />
+            <objectAnimator
+                    android:duration="0"
+                    android:propertyName="elevation"
+                    android:valueTo="6dp"
+                    android:valueType="floatType" />
+        </set>
+    </item>
+
+    <!-- Hover state. This is triggered via mouse. -->
+    <item
+            android:state_enabled="true"
+            android:state_hovered="true">
+        <set>
+            <objectAnimator
+                    android:duration="100"
+                    android:propertyName="translationZ"
+                    android:valueTo="2dp"
+                    android:valueType="floatType" />
+            <objectAnimator
+                    android:duration="0"
+                    android:propertyName="elevation"
+                    android:valueTo="6dp"
+                    android:valueType="floatType" />
+        </set>
+    </item>
+
+    <!-- Focused state. This is triggered via keyboard. -->
+    <item
+            android:state_enabled="true"
+            android:state_focused="true">
+        <set>
+            <objectAnimator
+                    android:duration="100"
+                    android:propertyName="translationZ"
+                    android:valueTo="2dp"
+                    android:valueType="floatType" />
+            <objectAnimator
+                    android:duration="0"
+                    android:propertyName="elevation"
+                    android:valueTo="6dp"
+                    android:valueType="floatType" />
+        </set>
+    </item>
+
+    <!-- Base state (enabled, not pressed) -->
+    <item android:state_enabled="true">
+        <set>
+            <objectAnimator
+                    android:duration="100"
+                    android:propertyName="translationZ"
+                    android:startDelay="100"
+                    android:valueTo="0dp"
+                    android:valueType="floatType"
+                    tools:ignore="UnusedAttribute" />
+            <objectAnimator
+                    android:duration="0"
+                    android:propertyName="elevation"
+                    android:valueTo="6dp"
+                    android:valueType="floatType" />
+        </set>
+    </item>
+
+    <!-- Disabled state -->
+    <item>
+        <set>
+            <objectAnimator
+                    android:duration="0"
+                    android:propertyName="translationZ"
+                    android:valueTo="0dp"
+                    android:valueType="floatType" />
+            <objectAnimator
+                    android:duration="0"
+                    android:propertyName="elevation"
+                    android:valueTo="0dp"
+                    android:valueType="floatType" />
+        </set>
+    </item>
+
+</selector>

app/src/main/res/drawable/bts_logo.xml

@@ -1,5 +0,0 @@
-<vector android:height="255dp" android:viewportHeight="255" android:viewportWidth="255" android:width="255dp" xmlns:android="http://schemas.android.com/apk/res/android">
-    <path android:fillColor="#FEFEFE" android:pathData="M128 0c70 0 127 57 127 127 0 71-57 128-127 128C57 255 0 198 0 127 0 57 57 0 128 0z"/>
-    <path android:fillColor="#2A8336" android:pathData="M178 73c-15-16-36-22-57-21l12 10c31 3 56 29 56 61 0 34-27 61-61 61s-62-27-62-61c0-13 4-25 11-35V73c-28 28-28 73 0 101l51 51 50-51c28-28 28-73 0-101z"/>
-    <path android:fillColor="#009FE3" android:pathData="M99 155c7 6 15 10 25 11v-27c-2 0-4-1-6-2l-19 18zm31-16v27c9-1 18-5 24-11l-19-18c-1 1-3 2-5 2zm-18-12c0 2 1 4 2 6l-19 19c-6-7-9-16-10-25h27zm57 0c-1 9-5 17-10 24l-19-19c1-1 1-3 2-5h27zm-57-6H85V86l29 29c-1 2-2 4-2 6zm56 0h-26c-1-2-1-4-3-6l19-19c6 7 10 16 10 25zm-14-29c-6-5-15-9-24-10v27c2 0 4 1 5 2l19-19zM85 77c7 8 30 30 34 34 1-1 3-2 5-2V65L85 30v47z"/>
-</vector>

app/src/main/res/drawable/bts_logo_unselected.xml

@@ -1,19 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="255dp"
-    android:height="255dp"
-    android:viewportWidth="255"
-    android:viewportHeight="255" >
-
-    <path
-        android:fillColor="#BBFEFEFE"
-        android:pathData="M128 0c70 0 127 57 127 127 0 71-57 128-127 128C57 255 0 198 0 127 0 57 57 0 128 0z"/>
-
-    <path
-        android:fillColor="#2A8336"
-        android:pathData="M178 73c-15-16-36-22-57-21l12 10c31 3 56 29 56 61 0 34-27 61-61 61s-62-27-62-61c0-13 4-25 11-35V73c-28 28-28 73 0 101l51 51 50-51c28-28 28-73 0-101z"/>
-
-    <path
-        android:fillColor="#009FE3"
-        android:pathData="M99 155c7 6 15 10 25 11v-27c-2 0-4-1-6-2l-19 18zm31-16v27c9-1 18-5 24-11l-19-18c-1 1-3 2-5 2zm-18-12c0 2 1 4 2 6l-19 19c-6-7-9-16-10-25h27zm57 0c-1 9-5 17-10 24l-19-19c1-1 1-3 2-5h27zm-57-6H85V86l29 29c-1 2-2 4-2 6zm56 0h-26c-1-2-1-4-3-6l19-19c6 7 10 16 10 25zm-14-29c-6-5-15-9-24-10v27c2 0 4 1 5 2l19-19zM85 77c7 8 30 30 34 34 1-1 3-2 5-2V65L85 30v47z"/>
-
-</vector>

app/src/main/res/drawable/camera_view_background.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android" >
+    <corners android:radius="10dp" />
+    <solid android:color="#111" />
+</shape>

app/src/main/res/drawable/ic_arrow_forward.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M12,4l-1.41,1.41L16.17,11H4v2h12.17l-5.58,5.59L12,20l8,-8z"/>
+</vector>

app/src/main/res/drawable/ic_arrow_receive.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="@color/colorReceive"
+        android:pathData="M12,4l-1.41,1.41L16.17,11H4v2h12.17l-5.58,5.59L12,20l8,-8z"/>
+</vector>

app/src/main/res/drawable/ic_arrow_send.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="@color/colorSend"
+        android:pathData="M12,4l-1.41,1.41L16.17,11H4v2h12.17l-5.58,5.59L12,20l8,-8z"/>
+</vector>

app/src/main/res/drawable/ic_balances.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M21,18v1c0,1.1 -0.9,2 -2,2L5,21c-1.11,0 -2,-0.9 -2,-2L3,5c0,-1.1 0.89,-2 2,-2h14c1.1,0 2,0.9 2,2v1h-9c-1.11,0 -2,0.9 -2,2v8c0,1.1 0.89,2 2,2h9zM12,16h10L22,8L12,8v8zM16,13.5c-0.83,0 -1.5,-0.67 -1.5,-1.5s0.67,-1.5 1.5,-1.5 1.5,0.67 1.5,1.5 -0.67,1.5 -1.5,1.5z"/>
+</vector>

app/src/main/res/drawable/ic_bitsy_logo.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:viewportHeight="499563" android:viewportWidth="500000" android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#009FE3" android:pathData="M250000 0c138022 0 250000 111545 250000 249564 0 138022-111981 249999-250000 249999C111978 499563 0 387583 0 249564 0 111543 111981 0 250000 0z"/>
+    <path android:fillColor="#FEFEFE" android:pathData="M348958 142794c-30382-30381-71614-43836-111545-40365l22135 19532c61632 4775 110243 56423 110243 119791 0 65973-53384 119357-119791 119357-65972 0-120227-53384-120227-119357 0-25606 7812-49478 21701-69010v-29948h-434c-55123 55122-55123 143665-436 198351l99394 98958 98958-99393c54687-54687 55121-143229 0-197916h2z"/>
+    <path android:fillColor="#FEFEFE" android:pathData="M194446 304254c13022 11717 29514 19097 48177 20398v-52517c-3906-867-7812-2604-10851-4775l-37326 36891v3zm59462-32119v52517c18663-1301 35590-8681 48177-20398l-36891-36892c-3472 2169-7380 3906-11286 4775v-2zm-34723-23872c435 4340 2170 7811 4341 11285l-36892 37326c-11717-13454-19097-29947-19964-48611h52518-3zm111111 0c-1302 18230-8247 34723-19532 47742l-37326-37327c2168-3038 3471-6510 4340-10415h52518zm-111111-11283h-52517v-68141l57290 56858c-2603 3471-4340 7379-4775 11285l2-2zm110676 0h-52083c-867-3906-2604-7812-4775-11286l36892-36891c11717 13021 19097 29946 19964 48177h2zm-27776-55991c-12587-11286-29514-19098-48177-19964v52517c3906 867 7812 2170 11286 4340l36891-36891v-2zm-135417-29514c13888 14325 58161 58593 65536 65973 3472-1736 6511-3471 10417-3906v-86371l-76388-67709s435 89845 435 92013z"/>
+</vector>

app/src/main/res/drawable/ic_bitsy_logo_2.xml

@@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="29dp"
+    android:height="40dp"
+    android:viewportWidth="294778"
+    android:viewportHeight="400026">
+  <path
+      android:pathData="M251503,87576c-31929,-31929 -75261,-46069 -117225,-42422l23262,20527c64770,5019 115859,59297 115859,125894 0,69331 -56104,125435 -125893,125435l0,0 0,0c-69333,0 -126350,-56104 -126350,-125435 0,-26911 8209,-52000 22806,-72526l0,-31473 -457,0c-57930,57929 -57930,150981 -457,208453l104454,103998 103999,-104455c57472,-57472 57929,-150524 0,-207996l0,0 2,0z"
+      android:fillColor="#FEFEFE"/>
+  <path
+      android:pathData="M89122,257258c13686,12315 31018,20069 50631,21438l0,-55193c-4105,-911 -8210,-2736 -11403,-5019l-39228,38771 0,3zM151613,223503l0,55193c19612,-1369 37402,-9123 50631,-21438l-38771,-38770c-3647,2279 -7756,4104 -11860,5019l0,-4zM115121,198415c458,4562 2280,8210 4562,11860l-38771,39228c-12314,-14140 -20069,-31472 -20980,-51088l55192,0 -3,0zM231891,198415c-1368,19159 -8667,36491 -20527,50174l-39227,-39228c2280,-3193 3648,-6840 4562,-10946l55192,0zM115121,186558l-55191,0c0,-20069 0,-41053 0,-71611l60208,59753c-2737,3649 -4562,7756 -5019,11860l2,-2zM231434,186558l-54735,0c-912,-4104 -2737,-8209 -5019,-11860l38771,-38771c12314,13685 20070,31472 20980,50631l3,0zM202244,127715c-13229,-11860 -31019,-20069 -50631,-20981l0,55193c4104,911 8209,2280 11860,4562l38771,-38771 0,-3zM59930,96700c14595,15053 61122,61576 68874,69332 3648,-1825 6842,-3648 10946,-4105 0,-15508 0,-90770 0,-90770l-80278,-71157c0,0 458,94420 458,96700z"
+      android:fillColor="#FEFEFE"/>
+</vector>

app/src/main/res/drawable/ic_close.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M19,6.41L17.59,5 12,10.59 6.41,5 5,6.41 10.59,12 5,17.59 6.41,19 12,13.41 17.59,19 19,17.59 13.41,12z"/>
+</vector>

app/src/main/res/drawable/ic_connected.xml

@@ -5,6 +5,6 @@
         android:viewportWidth="24.0"
         android:viewportHeight="24.0">
     <path
-        android:fillColor="@color/colorPrimary"
+        android:fillColor="@color/ppGreen"
         android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM10,17l-5,-5 1.41,-1.41L10,14.17l7.59,-7.59L19,8l-9,9z"/>
 </vector>

app/src/main/res/drawable/ic_file_download.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M19,9h-4V3H9v6H5l7,7 7,-7zM5,18v2h14v-2H5z"/>
+</vector>

app/src/main/res/drawable/ic_filter.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M10,18h4v-2h-4v2zM3,6v2h18L21,6L3,6zM6,13h12v-2L6,11v2z"/>
+</vector>

app/src/main/res/drawable/ic_merchants.xml

@@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:fillColor="#FFF"
+      android:pathData="M12,2C8.13,2 5,5.13 5,9c0,5.25 7,13 7,13s7,-7.75 7,-13c0,-3.87 -3.13,-7 -7,-7zM7,9c0,-2.76 2.24,-5 5,-5s5,2.24 5,5c0,2.88 -2.88,7.19 -5,9.88C9.92,16.21 7,11.85 7,9z"/>
+  <path
+      android:fillColor="#FFF"
+      android:pathData="M12,9m-2.5,0a2.5,2.5 0,1 1,5 0a2.5,2.5 0,1 1,-5 0"/>
+</vector>

app/src/main/res/drawable/ic_pie_chart.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M11,2v20c-5.07,-0.5 -9,-4.79 -9,-10s3.93,-9.5 9,-10zM13.03,2v8.99L22,10.99c-0.47,-4.74 -4.24,-8.52 -8.97,-8.99zM13.03,13.01L13.03,22c4.74,-0.47 8.5,-4.25 8.97,-8.99h-8.97z"/>
+</vector>

app/src/main/res/drawable/ic_pin_merchants.xml

@@ -0,0 +1,23 @@
+<vector android:height="51dp"
+        android:viewportHeight="225.302"
+        android:viewportWidth="154.618"
+        android:width="31dp"
+        xmlns:android="http://schemas.android.com/apk/res/android">
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app/src/main/res/drawable/ic_receive.xml

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+<rotate xmlns:android="http://schemas.android.com/apk/res/android"
+        android:fromDegrees="90"
+        android:toDegrees="90"
+        android:pivotX="50%"
+        android:pivotY="50%"
+        android:drawable="@drawable/ic_send">
+</rotate>

app/src/main/res/drawable/ic_search.xml

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+    android:viewportHeight="24.0" android:viewportWidth="24.0"
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app/src/main/res/drawable/ic_send.xml

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+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
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+</vector>