Merge branch 'master' into master

app/build.gradle

@@ -63,4 +63,6 @@ dependencies {
     annotationProcessor 'android.arch.lifecycle:compiler:1.0.0'
     annotationProcessor 'android.arch.persistence.room:compiler:1.0.0'
     annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
+
+    compile 'com.squareup.picasso:picasso:2.5.2'
 }

app/schemas/cy.agorise.crystalwallet.dao.CrystalDatabase/2.json

@@ -2,7 +2,7 @@
   "formatVersion": 1,
   "database": {
     "version": 2,
-    "identityHash": "a44ccb96c8213951403ed2a283fb3367",
+    "identityHash": "22cb2a56b28a9f7088ec98d6a72f9f67",
     "entities": [
       {
         "tableName": "account_seed",
@@ -235,7 +235,7 @@
       },
       {
         "tableName": "contact",
-        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `name` TEXT, `gravatar` TEXT)",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `name` TEXT, `email` TEXT, `gravatar` TEXT)",
         "fields": [
           {
             "fieldPath": "mId",
@@ -249,6 +249,12 @@
             "affinity": "TEXT",
             "notNull": false
           },
+          {
+            "fieldPath": "mEmail",
+            "columnName": "email",
+            "affinity": "TEXT",
+            "notNull": false
+          },
           {
             "fieldPath": "mGravatar",
             "columnName": "gravatar",
@@ -278,6 +284,70 @@
               "name"
             ],
             "createSql": "CREATE UNIQUE INDEX `index_contact_name` ON `${TABLE_NAME}` (`name`)"
+          },
+          {
+            "name": "index_contact_email",
+            "unique": false,
+            "columnNames": [
+              "email"
+            ],
+            "createSql": "CREATE  INDEX `index_contact_email` ON `${TABLE_NAME}` (`email`)"
+          }
+        ],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "contact_address",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `contact_id` INTEGER NOT NULL, `crypto_net` TEXT NOT NULL, `address` TEXT)",
+        "fields": [
+          {
+            "fieldPath": "mId",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "mContactId",
+            "columnName": "contact_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "mCryptoNet",
+            "columnName": "crypto_net",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "mAddress",
+            "columnName": "address",
+            "affinity": "TEXT",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "columnNames": [
+            "id"
+          ],
+          "autoGenerate": true
+        },
+        "indices": [
+          {
+            "name": "index_contact_address_id",
+            "unique": true,
+            "columnNames": [
+              "id"
+            ],
+            "createSql": "CREATE UNIQUE INDEX `index_contact_address_id` ON `${TABLE_NAME}` (`id`)"
+          },
+          {
+            "name": "index_contact_address_contact_id_crypto_net",
+            "unique": true,
+            "columnNames": [
+              "contact_id",
+              "crypto_net"
+            ],
+            "createSql": "CREATE UNIQUE INDEX `index_contact_address_contact_id_crypto_net` ON `${TABLE_NAME}` (`contact_id`, `crypto_net`)"
           }
         ],
         "foreignKeys": []
@@ -622,7 +692,7 @@
     ],
     "setupQueries": [
       "CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
-      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, \"a44ccb96c8213951403ed2a283fb3367\")"
+      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, \"22cb2a56b28a9f7088ec98d6a72f9f67\")"
     ]
   }
 }

app/src/main/AndroidManifest.xml

@@ -1,11 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="cy.agorise.crystalwallet">
+
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 
     <application
-        android:name="cy.agorise.crystalwallet.application.CrystalApplication"
+        android:name=".application.CrystalApplication"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="Crystal"
@@ -21,7 +22,7 @@
             </intent-filter>
         </activity>
         <activity android:name=".activities.BoardActivity"
-            android:theme="@style/AppTheme.NoActionBar" > <!-- Dirty trick to avoid toolbar error on balance -->
+            android:theme="@style/AppTheme.NoActionBar" >
         </activity>
         <activity android:name=".activities.AccountSeedsManagementActivity" >
         </activity>
@@ -37,20 +38,27 @@
         </activity>
         <activity android:name=".activities.BackupSeedActivity" >
         </activity>
-        <activity android:name=".activities.SettingsActivity"
+        <activity android:name=".activities.PinRequestActivity">
-            android:theme="@style/AppTheme.NoActionBar"
-            android:windowSoftInputMode="adjustPan" >
         </activity>
-        <activity android:name=".activities.AccountsActivity"
+        <activity
-            android:theme="@style/ActivityDialog"
+            android:name=".activities.SettingsActivity"
-            android:parentActivityName=".activities.BoardActivity" >
+            android:theme="@style/AppTheme.NoActionBar"
+            android:windowSoftInputMode="adjustPan">
+        </activity>
+        <activity
+            android:name=".activities.AccountsActivity"
+            android:parentActivityName=".activities.BoardActivity"
+            android:theme="@style/ActivityDialog">
             <meta-data
                 android:name="android.support.PARENT_ACTIVITY"
                 android:value=".activities.BoardActivity" />
         </activity>
 
-        <service android:name=".service.CrystalWalletService"
+        <service
-            android:exported="false"/>
+            android:name=".service.CrystalWalletService"
+            android:exported="false" />
+
+        <activity android:name=".activities.CreateContactActivity"></activity>
     </application>
 
 </manifest>

app/src/main/java/cy/agorise/crystalwallet/activities/BoardActivity.java

@@ -204,6 +204,12 @@ public class BoardActivity  extends AppCompatActivity {
         }
     }
 
+    @OnClick(R.id.fabAddContact)
+    public void beginCreateContact(){
+        Intent intent = new Intent(this, CreateContactActivity.class);
+        startActivity(intent);
+    }
+
     /*
      * dispatch the user to the receive fragment using this account
      */
@@ -215,8 +221,16 @@ public class BoardActivity  extends AppCompatActivity {
         }
         ft.addToBackStack(null);
 
+        long receiveCryptoNetAccountId = -1;
+        if (this.cryptoNetAccountId != -1){
+            receiveCryptoNetAccountId = this.cryptoNetAccountId;
+        } else {
+            CryptoNetBalanceListViewModel cryptoNetBalanceListViewModel = ViewModelProviders.of(this).get(CryptoNetBalanceListViewModel.class);
+            receiveCryptoNetAccountId = cryptoNetBalanceListViewModel.getFirstBitsharesAccountId();
+        }
+
         // Create and show the dialog.
-        ReceiveTransactionFragment newFragment = ReceiveTransactionFragment.newInstance(this.cryptoNetAccountId);
+        ReceiveTransactionFragment newFragment = ReceiveTransactionFragment.newInstance(receiveCryptoNetAccountId);
         newFragment.show(ft, "ReceiveDialog");
     }
 

app/src/main/java/cy/agorise/crystalwallet/activities/CreateContactActivity.java

@@ -0,0 +1,254 @@
+package cy.agorise.crystalwallet.activities;
+
+import android.arch.lifecycle.LiveData;
+import android.arch.lifecycle.Observer;
+import android.arch.lifecycle.ViewModelProviders;
+import android.content.Intent;
+import android.support.annotation.Nullable;
+import android.support.v4.app.FragmentActivity;
+import android.support.v7.app.AlertDialog;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.text.Editable;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+import butterknife.OnTextChanged;
+import cy.agorise.crystalwallet.R;
+import cy.agorise.crystalwallet.cryptonetinforequests.CryptoNetInfoRequestListener;
+import cy.agorise.crystalwallet.cryptonetinforequests.CryptoNetInfoRequests;
+import cy.agorise.crystalwallet.cryptonetinforequests.ValidateCreateBitsharesAccountRequest;
+import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.models.ContactAddress;
+import cy.agorise.crystalwallet.models.GrapheneAccount;
+import cy.agorise.crystalwallet.viewmodels.ContactListViewModel;
+import cy.agorise.crystalwallet.viewmodels.ContactViewModel;
+import cy.agorise.crystalwallet.viewmodels.validators.CreateContactValidator;
+import cy.agorise.crystalwallet.viewmodels.validators.CreateSeedValidator;
+import cy.agorise.crystalwallet.viewmodels.validators.ModifyContactValidator;
+import cy.agorise.crystalwallet.viewmodels.validators.UIValidatorListener;
+import cy.agorise.crystalwallet.viewmodels.validators.validationfields.ValidationField;
+import cy.agorise.crystalwallet.views.ContactAddressListAdapter;
+import cy.agorise.crystalwallet.views.ContactViewHolder;
+
+public class CreateContactActivity extends AppCompatActivity implements UIValidatorListener {
+
+    @BindView(R.id.etName)
+    EditText etName;
+    @BindView(R.id.tvNameError)
+    TextView tvNameError;
+    @BindView(R.id.etEmail)
+    EditText etEmail;
+    @BindView(R.id.tvEmailError)
+    TextView tvEmailError;
+    @BindView(R.id.btnCancel)
+    Button btnCancel;
+    @BindView(R.id.btnCreate)
+    Button btnCreate;
+    @BindView(R.id.btnModify)
+    Button btnModify;
+    @BindView(R.id.rvContactAddresses)
+    RecyclerView rvContactAddresses;
+    @BindView(R.id.btnAddAddress)
+    Button btnAddAddress;
+    List<ContactAddress> contactAddressList;
+    ContactAddressListAdapter listAdapter;
+
+    CreateContactValidator createContactValidator;
+    ModifyContactValidator modifyContactValidator;
+
+    Contact contact;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_create_contact);
+        ButterKnife.bind(this);
+
+        btnCreate.setEnabled(false);
+
+        listAdapter = new ContactAddressListAdapter();
+        rvContactAddresses.setLayoutManager(new LinearLayoutManager(getApplicationContext()));
+        rvContactAddresses.setAdapter(listAdapter);
+
+        long contactId = this.getIntent().getLongExtra("CONTACT_ID",-1);
+
+        btnCreate.setVisibility(View.GONE);
+        btnModify.setVisibility(View.GONE);
+
+        if (contactId >= 0){
+            final ContactViewModel contactViewModel = ViewModelProviders.of(this).get(ContactViewModel.class);
+
+            contactViewModel.init(contactId);
+            LiveData<Contact> contactLiveData = contactViewModel.getContact();
+            final CreateContactActivity thisActivity = this;
+
+            contactLiveData.observe(this, new Observer<Contact>() {
+                @Override
+                public void onChanged(@Nullable Contact contactChanged) {
+                    if (contactChanged != null){
+                        contact = contactChanged;
+                        etName.setText(contact.getName());
+                        etEmail.setText(contact.getEmail());
+
+                        LiveData<List<ContactAddress>> contactAddresses = contactViewModel.getContactAddresses();
+
+                        contactAddresses.observe(thisActivity, new Observer<List<ContactAddress>>() {
+                            @Override
+                            public void onChanged(@Nullable List<ContactAddress> contactAddresses) {
+                                contactAddressList = contactAddresses;
+                                listAdapter.setList(contactAddressList);
+                                listAdapter.notifyDataSetChanged();
+                            }
+                        });
+
+                        modifyContactValidator = new ModifyContactValidator(thisActivity.getApplicationContext(),contact,etName,etEmail);
+                        modifyContactValidator.setListener(thisActivity);
+                        btnModify.setVisibility(View.VISIBLE);
+                    } else {
+                        //No contact was found, this will exit the activity
+                        finish();
+                    }
+                }
+            });
+        } else {
+            contactAddressList = new ArrayList<ContactAddress>();
+            listAdapter.setList(contactAddressList);
+            createContactValidator = new CreateContactValidator(this.getApplicationContext(),etName,etEmail);
+            createContactValidator.setListener(this);
+
+            btnCreate.setVisibility(View.VISIBLE);
+        }
+    }
+
+    public void validate(){
+        if (this.createContactValidator != null){
+            this.createContactValidator.validate();
+        } else if (this.modifyContactValidator != null){
+            this.modifyContactValidator.validate();
+        }
+    }
+
+    public boolean isValid(){
+        if (this.createContactValidator != null){
+            return this.createContactValidator.isValid();
+        } else if (this.modifyContactValidator != null){
+            return this.modifyContactValidator.isValid();
+        }
+
+        return false;
+    }
+
+    @OnTextChanged(value = R.id.etName,
+            callback = OnTextChanged.Callback.AFTER_TEXT_CHANGED)
+    void afterContactNameChanged(Editable editable) {
+        this.validate();
+    }
+
+    @OnTextChanged(value = R.id.etEmail,
+            callback = OnTextChanged.Callback.AFTER_TEXT_CHANGED)
+    void afterEmailChanged(Editable editable) {
+        this.validate();
+    }
+
+
+    @OnClick(R.id.btnAddAddress)
+    public void addAddress(){
+        ContactAddress newContactAddress = new ContactAddress();
+        this.contactAddressList.add(newContactAddress);
+        this.listAdapter.notifyDataSetChanged();
+    }
+
+    @OnClick(R.id.btnCancel)
+    public void cancel(){
+        this.finish();
+    }
+
+    @OnClick(R.id.btnModify)
+    public void modifyContact(){
+        if (this.modifyContactValidator.isValid()) {
+            this.contact.setName(etName.getText().toString());
+            this.contact.setEmail(etEmail.getText().toString());
+            this.contact.clearAddresses();
+
+            for (ContactAddress contactAddress : contactAddressList){
+                this.contact.addAddress(contactAddress);
+            }
+
+            ContactViewModel contactViewModel = ViewModelProviders.of(this).get(ContactViewModel.class);
+            if (contactViewModel.modifyContact(this.contact)){
+                this.finish();
+            } else {
+                this.modifyContactValidator.validate();
+            }
+        }
+    }
+
+    @OnClick(R.id.btnCreate)
+    public void createContact(){
+        if (this.createContactValidator.isValid()) {
+            Contact newContact = new Contact();
+            newContact.setName(etName.getText().toString());
+            newContact.setEmail(etEmail.getText().toString());
+
+            for (ContactAddress contactAddress : contactAddressList){
+                newContact.addAddress(contactAddress);
+            }
+
+            ContactViewModel contactViewModel = ViewModelProviders.of(this).get(ContactViewModel.class);
+            if (contactViewModel.addContact(newContact)){
+                this.finish();
+            } else {
+                createContactValidator.validate();
+            }
+        }
+    }
+
+    @Override
+    public void onValidationSucceeded(final ValidationField field) {
+        final CreateContactActivity activity = this;
+
+        activity.runOnUiThread(new Runnable() {
+            public void run() {
+
+                if (field.getView() == etName) {
+                    tvNameError.setText("");
+                } else if (field.getView() == etEmail) {
+                    tvEmailError.setText("");
+                }
+
+                if (activity.isValid()){
+                    btnCreate.setEnabled(true);
+                } else {
+                    btnCreate.setEnabled(false);
+                }
+            }
+        });
+    }
+
+    @Override
+    public void onValidationFailed(final ValidationField field) {
+        runOnUiThread(new Runnable() {
+
+            @Override
+            public void run() {
+                if (field.getView() == etName) {
+                    tvNameError.setText(field.getMessage());
+                } else if (field.getView() == etEmail) {
+                    tvEmailError.setText(field.getMessage());
+                }
+            }
+        });
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/activities/IntroActivity.java

@@ -1,11 +1,6 @@
 package cy.agorise.crystalwallet.activities;
 
-import android.arch.lifecycle.LifecycleActivity;
-import android.arch.lifecycle.LiveData;
-import android.arch.lifecycle.Observer;
-import android.arch.lifecycle.ViewModelProvider;
 import android.arch.lifecycle.ViewModelProviders;
-import android.arch.paging.PagedList;
 import android.content.Intent;
 import android.media.MediaPlayer;
 import android.os.Bundle;
@@ -34,12 +29,11 @@ import cy.agorise.crystalwallet.randomdatagenerators.RandomCryptoCoinBalanceGene
 import cy.agorise.crystalwallet.randomdatagenerators.RandomCryptoNetAccountGenerator;
 import cy.agorise.crystalwallet.randomdatagenerators.RandomSeedGenerator;
 import cy.agorise.crystalwallet.randomdatagenerators.RandomTransactionsGenerator;
+import cy.agorise.crystalwallet.application.CrystalSecurityMonitor;
 import cy.agorise.crystalwallet.viewmodels.AccountSeedListViewModel;
 import cy.agorise.crystalwallet.viewmodels.TransactionListViewModel;
 import cy.agorise.crystalwallet.views.TransactionListView;
 
-import static cy.agorise.crystalwallet.R.string.transactions;
-
 public class IntroActivity extends AppCompatActivity {
 
     TransactionListViewModel transactionListViewModel;
@@ -82,6 +76,9 @@ public class IntroActivity extends AppCompatActivity {
             }
         });
 
+        this.getApplication().registerActivityLifecycleCallbacks(new CrystalSecurityMonitor(this));
+
+
         //Checks if the user has any seed created
         /*AccountSeedListViewModel accountSeedListViewModel = ViewModelProviders.of(this).get(AccountSeedListViewModel.class);
 

app/src/main/java/cy/agorise/crystalwallet/activities/PinRequestActivity.java

@@ -0,0 +1,74 @@
+package cy.agorise.crystalwallet.activities;
+
+import android.arch.lifecycle.LiveData;
+import android.arch.lifecycle.Observer;
+import android.arch.lifecycle.ViewModelProviders;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v7.app.AppCompatActivity;
+import android.text.Editable;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import java.util.List;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+import butterknife.OnTextChanged;
+import cy.agorise.crystalwallet.R;
+import cy.agorise.crystalwallet.models.AccountSeed;
+import cy.agorise.crystalwallet.models.GeneralSetting;
+import cy.agorise.crystalwallet.util.PasswordManager;
+import cy.agorise.crystalwallet.viewmodels.AccountSeedViewModel;
+import cy.agorise.crystalwallet.viewmodels.GeneralSettingListViewModel;
+
+public class PinRequestActivity extends AppCompatActivity {
+    private String passwordEncrypted;
+
+    @Override
+    public void onBackPressed() {
+        //Do nothing to prevent the user to use the back button
+    }
+
+    @BindView(R.id.etPassword)
+    EditText etPassword;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_pin_request);
+        ButterKnife.bind(this);
+
+        GeneralSettingListViewModel generalSettingListViewModel = ViewModelProviders.of(this).get(GeneralSettingListViewModel.class);
+        LiveData<List<GeneralSetting>> generalSettingsLiveData = generalSettingListViewModel.getGeneralSettingList();
+        generalSettingsLiveData.observe(this, new Observer<List<GeneralSetting>>() {
+            @Override
+            public void onChanged(@Nullable List<GeneralSetting> generalSettings) {
+                passwordEncrypted = "";
+
+                if (generalSettings != null){
+                    for (GeneralSetting generalSetting:generalSettings) {
+                        if (generalSetting.getName().equals(GeneralSetting.SETTING_PASSWORD)){
+                            if (!generalSetting.getValue().isEmpty()){
+                                passwordEncrypted = generalSetting.getValue();
+                            }
+                            break;
+                        }
+                    }
+                }
+            }
+        });
+    }
+
+    @OnTextChanged(value = R.id.etPassword,
+            callback = OnTextChanged.Callback.AFTER_TEXT_CHANGED)
+    void afterPasswordChanged(Editable editable) {
+        if (PasswordManager.checkPassword(passwordEncrypted, etPassword.getText().toString())) {
+            this.finish();
+        }
+    }
+}
+
+

app/src/main/java/cy/agorise/crystalwallet/apigenerator/BitsharesFaucetApiGenerator.java

@@ -37,8 +37,9 @@ public abstract class BitsharesFaucetApiGenerator {
      * @param url The url of the faucet
      * @return The bitshares id of the registered account, or null
      */
-    public static boolean registerBitsharesAccount(String accountName, String ownerKey,
+    public static void registerBitsharesAccount(String accountName, String ownerKey,
-                                                  String activeKey, String memoKey, String url){
+                                                   String activeKey, String memoKey, String url,
+                                                   final ApiRequest request){
         CreateAccountPetition petition = new CreateAccountPetition();
         final Account account = new Account();
         account.name=accountName;
@@ -62,8 +63,7 @@ public abstract class BitsharesFaucetApiGenerator {
 
         HashMap<String, HashMap> hashMap = new HashMap<>();
         hashMap.put("account", hm);
-        final boolean[] answer = {false};
+
-        final Object SYNC = new Object();
         try {
             ServiceGenerator sg = new ServiceGenerator(url);
             IWebService service = sg.getService(IWebService.class);
@@ -78,56 +78,36 @@ public abstract class BitsharesFaucetApiGenerator {
                         if (resp.account != null) {
                             try {
                                 if(resp.account.name.equals(account.name)) {
-                                    synchronized (SYNC){
+                                    request.getListener().success(true,request.getId());
-                                        answer[0] = true;
-                                        SYNC.notifyAll();
-                                    }
                                 }else{
-                                    System.out.println("ERROR account name different" + resp.account.name);
+                                    request.getListener().fail(request.getId());
-                                   //ERROR
-                                    synchronized (SYNC) {
-                                        SYNC.notifyAll();
-                                    }
                                 }
                             } catch (Exception e) {
                                 e.printStackTrace();
-                                synchronized (SYNC) {
+                                request.getListener().fail(request.getId());
-                                    SYNC.notifyAll();
-                                }
                             }
                         }else{
                             System.out.println("ERROR response doesn't have account " + response.message());
-                            //ERROR
+                            request.getListener().fail(request.getId());
-                            synchronized (SYNC) {
-                                SYNC.notifyAll();
-                            }
 
                         }
                     }else{
                         System.out.println("ERROR fetching info");
-                        //ERROR
+                        request.getListener().fail(request.getId());
-                        synchronized (SYNC) {
-                            SYNC.notifyAll();
-                        }
                     }
                 }
 
                 @Override
                 public void onFailure(Call<RegisterAccountResponse> call, Throwable t) {
                     t.printStackTrace();
-                    synchronized (SYNC) {
+                    request.getListener().fail(request.getId());
-                        SYNC.notifyAll();
-                    }
                 }
             });
-            synchronized (SYNC) {
-                SYNC.wait(60000);
-            }
         } catch (Exception e) {
             e.printStackTrace();
-        }
+            request.getListener().fail(request.getId());
 
-        return answer[0];
+        }
     }
 
     /**

app/src/main/java/cy/agorise/crystalwallet/apigenerator/GrapheneApiGenerator.java

@@ -12,14 +12,14 @@ import cy.agorise.crystalwallet.dao.BitsharesAssetDao;
 import cy.agorise.crystalwallet.dao.CryptoCoinBalanceDao;
 import cy.agorise.crystalwallet.dao.CryptoCurrencyDao;
 import cy.agorise.crystalwallet.dao.CrystalDatabase;
-import cy.agorise.crystalwallet.dao.TransactionDao;
+import cy.agorise.crystalwallet.enums.CryptoNet;
-import cy.agorise.crystalwallet.manager.BitsharesAccountManager;
 import cy.agorise.crystalwallet.models.BitsharesAsset;
 import cy.agorise.crystalwallet.models.BitsharesAssetInfo;
 import cy.agorise.crystalwallet.models.CryptoCoinBalance;
 import cy.agorise.crystalwallet.models.CryptoCoinTransaction;
 import cy.agorise.crystalwallet.models.CryptoCurrency;
 import cy.agorise.crystalwallet.models.CryptoCurrencyEquivalence;
+import cy.agorise.crystalwallet.network.CryptoNetManager;
 import cy.agorise.crystalwallet.network.WebSocketThread;
 import cy.agorise.graphenej.Address;
 import cy.agorise.graphenej.Asset;
@@ -43,11 +43,9 @@ import cy.agorise.graphenej.api.TransactionBroadcastSequence;
 import cy.agorise.graphenej.interfaces.NodeErrorListener;
 import cy.agorise.graphenej.interfaces.SubscriptionListener;
 import cy.agorise.graphenej.interfaces.WitnessResponseListener;
-import cy.agorise.graphenej.models.AccountBalanceUpdate;
 import cy.agorise.graphenej.models.AccountProperties;
 import cy.agorise.graphenej.models.BaseResponse;
 import cy.agorise.graphenej.models.BroadcastedTransaction;
-import cy.agorise.graphenej.models.HistoricalTransfer;
 import cy.agorise.graphenej.models.SubscriptionResponse;
 import cy.agorise.graphenej.models.WitnessResponse;
 import cy.agorise.graphenej.operations.TransferOperation;
@@ -62,12 +60,8 @@ public abstract class GrapheneApiGenerator {
 
     //TODO network connections
     //TODO make to work with all Graphene type, not only bitshares
-    public static String url = "http://185.208.208.147:11012";
     public static String faucetUrl = "http://185.208.208.147:5010";
-    private static String equivalentUrl = "http://185.208.208.147:8090";
+    private static String equivalentUrl = "wss://bitshares.openledger.info/ws";
-    //public static String url = "wss://bitshares.openledger.info/ws";
-    //private static Str ing equivalentUrl = "wss://bitshares.openledger.info/ws";
-
 
     // The message broker for bitshares
     private static SubscriptionMessagesHub bitsharesSubscriptionHub = new SubscriptionMessagesHub("", "", true, new NodeErrorListener() {
@@ -81,7 +75,7 @@ public abstract class GrapheneApiGenerator {
     /**
      * The subscription thread for the real time updates
      */
-    private static WebSocketThread subscriptionThread = new WebSocketThread(bitsharesSubscriptionHub,url);
+    private static WebSocketThread subscriptionThread = new WebSocketThread(bitsharesSubscriptionHub, CryptoNetManager.getURL(CryptoNet.BITSHARES));
     /**
      * This is used for manager each listener in the subscription thread
      */
@@ -114,7 +108,7 @@ public abstract class GrapheneApiGenerator {
             public void onError(BaseResponse.Error error) {
                 request.getListener().fail(request.getId());
             }
-        }),url);
+        }),CryptoNetManager.getURL(CryptoNet.BITSHARES));
         thread.start();
     }
 
@@ -142,7 +136,7 @@ public abstract class GrapheneApiGenerator {
                 public void onError(BaseResponse.Error error) {
                     request.getListener().fail(request.getId());
                 }
-            }),url);
+            }),CryptoNetManager.getURL(CryptoNet.BITSHARES));
 
             thread.start();
     }
@@ -169,7 +163,7 @@ public abstract class GrapheneApiGenerator {
                 public void onError(BaseResponse.Error error) {
                     request.getListener().fail(request.getId());
                 }
-            }),url);
+            }),CryptoNetManager.getURL(CryptoNet.BITSHARES));
             thread.start();
     }
 
@@ -196,7 +190,7 @@ public abstract class GrapheneApiGenerator {
             public void onError(BaseResponse.Error error) {
                 request.getListener().fail(request.getId());
             }
-        }),url);
+        }),CryptoNetManager.getURL(CryptoNet.BITSHARES));
         thread.start();
     }
 
@@ -223,7 +217,7 @@ public abstract class GrapheneApiGenerator {
                 public void onError(BaseResponse.Error error) {
                     request.getListener().fail(request.getId());
                 }
-            }),url);
+            }),CryptoNetManager.getURL(CryptoNet.BITSHARES));
         thread.start();
     }
 
@@ -247,7 +241,7 @@ public abstract class GrapheneApiGenerator {
             public void onError(BaseResponse.Error error) {
                 request.getListener().fail(request.getId());
             }
-        }),url);
+        }),CryptoNetManager.getURL(CryptoNet.BITSHARES));
         thread.start();
     }
 
@@ -292,7 +286,7 @@ public abstract class GrapheneApiGenerator {
             public void onError(BaseResponse.Error error) {
                 request.getListener().fail(request.getId());
             }
-        }),url);
+        }),CryptoNetManager.getURL(CryptoNet.BITSHARES));
         thread.start();
     }
 
@@ -340,7 +334,7 @@ public abstract class GrapheneApiGenerator {
             public void onError(BaseResponse.Error error) {
                 request.getListener().fail(request.getId());
             }
-        }),url);
+        }),CryptoNetManager.getURL(CryptoNet.BITSHARES));
         thread.start();
     }
 
@@ -353,12 +347,10 @@ public abstract class GrapheneApiGenerator {
      */
     public static void subscribeBitsharesAccount(final long accountId, final String accountBitsharesId,
                                                  final Context context){
-        System.out.println("GrapheneAPI subscribe to account balance update");
         if(!currentBitsharesListener.containsKey(accountId)){
         CrystalDatabase db = CrystalDatabase.getAppDatabase(context);
         final BitsharesAssetDao bitsharesAssetDao = db.bitsharesAssetDao();
         final CryptoCurrencyDao cryptoCurrencyDao = db.cryptoCurrencyDao();
-        final TransactionDao transactionDao = db.transactionDao();
         SubscriptionListener balanceListener = new SubscriptionListener() {
             @Override
             public ObjectType getInterestObjectType() {
@@ -374,16 +366,15 @@ public abstract class GrapheneApiGenerator {
                             BroadcastedTransaction transactionUpdate = (BroadcastedTransaction) update;
                             for(BaseOperation operation : transactionUpdate.getTransaction().getOperations()){
                                 if(operation instanceof TransferOperation){
-                                    TransferOperation tOperation = (TransferOperation) operation;
+                                    final TransferOperation tOperation = (TransferOperation) operation;
                                     if(tOperation.getFrom().getObjectId().equals(accountBitsharesId) || tOperation.getTo().getObjectId().equals(accountBitsharesId)){
                                         GrapheneApiGenerator.getAccountBalance(accountId,accountBitsharesId,context);
-                                        CryptoCoinTransaction transaction = new CryptoCoinTransaction();
+                                        final CryptoCoinTransaction transaction = new CryptoCoinTransaction();
                                         transaction.setAccountId(accountId);
                                         transaction.setAmount(tOperation.getAssetAmount().getAmount().longValue());
                                         BitsharesAssetInfo info = bitsharesAssetDao.getBitsharesAssetInfoById(tOperation.getAssetAmount().getAsset().getObjectId());
                                         if (info == null) {
                                             //The cryptoCurrency is not in the database, queringfor its data
-                                            final Object SYNC = new Object(); //Object to syn the answer
                                             ApiRequest assetRequest = new ApiRequest(0, new ApiRequestListener() {
                                                 @Override
                                                 public void success(Object answer, int idPetition) {
@@ -394,40 +385,21 @@ public abstract class GrapheneApiGenerator {
                                                         info.setCryptoCurrencyId(idCryptoCurrency);
                                                         asset.setId((int)idCryptoCurrency);
                                                         bitsharesAssetDao.insertBitsharesAssetInfo(info);
-                                                    }
+                                                        saveTransaction(transaction,(int)info.getCryptoCurrencyId(),accountBitsharesId,tOperation,context);
-                                                    synchronized (SYNC){
-                                                        SYNC.notifyAll();
                                                     }
                                                 }
 
                                                 @Override
                                                 public void fail(int idPetition) {
-                                                    synchronized (SYNC){
+                                                    //TODO error retrieving asset
-                                                        SYNC.notifyAll();
-                                                    }
                                                 }
                                             });
                                             ArrayList<String> assets = new ArrayList<>();
                                             assets.add(tOperation.getAssetAmount().getAsset().getObjectId());
                                             GrapheneApiGenerator.getAssetById(assets,assetRequest);
-
+                                        }else{
-                                            synchronized (SYNC){
+                                            saveTransaction(transaction,(int)info.getCryptoCurrencyId(),accountBitsharesId,tOperation,context);
-                                                try {SYNC.wait(60000);} catch (InterruptedException ignore) {}
-                                            }
-                                            info = bitsharesAssetDao.getBitsharesAssetInfoById(tOperation.getAssetAmount().getAsset().getObjectId());
                                         }
-                                        if( info == null){
-                                            //We couldn't retrieve the cryptocurrency
-                                            return;
-                                        }
-                                        transaction.setIdCurrency((int)info.getCryptoCurrencyId());
-                                        transaction.setConfirmed(true); //graphene transaction are always confirmed
-                                        transaction.setFrom(tOperation.getFrom().getObjectId());
-                                        transaction.setInput(!tOperation.getFrom().getObjectId().equals(accountBitsharesId));
-                                        transaction.setTo(tOperation.getTo().getObjectId());
-                                        transaction.setDate(new Date());
-                                        transactionDao.insertTransaction(transaction);
-                                        //GrapheneApiGenerator.getBlockHeaderTime(, new ApiRequest(0, new BitsharesAccountManager.GetTransactionDate(transaction, db.transactionDao())));
                                     }
                                 }
                             }
@@ -449,6 +421,26 @@ public abstract class GrapheneApiGenerator {
         }
     }
 
+    /**
+     * Fucniton to save a transaction retrieved from the update
+     * @param transaction The transaction db object
+     * @param currencyId The id of the currency on the database
+     * @param accountBitsharesId The id of the account in the bitshares network
+     * @param tOperation The transfer operation fetched from the update
+     * @param context The context of this app
+     */
+    private static void saveTransaction(CryptoCoinTransaction transaction, int currencyId,
+                                        String accountBitsharesId, TransferOperation tOperation ,
+                                        Context context){
+        transaction.setIdCurrency(currencyId);
+        transaction.setConfirmed(true); //graphene transaction are always confirmed
+        transaction.setFrom(tOperation.getFrom().getObjectId());
+        transaction.setInput(!tOperation.getFrom().getObjectId().equals(accountBitsharesId));
+        transaction.setTo(tOperation.getTo().getObjectId());
+        transaction.setDate(new Date());
+        CrystalDatabase.getAppDatabase(context).transactionDao().insertTransaction(transaction);
+    }
+
     /**
      * Cancels all bitshares account subscriptions
      */
@@ -515,7 +507,7 @@ public abstract class GrapheneApiGenerator {
             public void onError(BaseResponse.Error error) {
 
             }
-        }),url);
+        }),CryptoNetManager.getURL(CryptoNet.BITSHARES));
 
         thread.start();
 
@@ -542,7 +534,7 @@ public abstract class GrapheneApiGenerator {
             public void onError(BaseResponse.Error error) {
                 request.getListener().fail(request.getId());
             }
-        }),url);
+        }),CryptoNetManager.getURL(CryptoNet.BITSHARES));
         thread.start();
 
     }
@@ -674,7 +666,7 @@ public abstract class GrapheneApiGenerator {
                         Converter converter = new Converter();
                         order.getSellPrice().base.getAsset().setPrecision(baseAsset.getPrecision());
                         order.getSellPrice().quote.getAsset().setPrecision(quoteAsset.getPrecision());
-                        double equiValue = converter.getConversionRate(order.getSellPrice(), Converter.BASE_TO_QUOTE);
+                        double equiValue = converter.getConversionRate(order.getSellPrice(), Converter.QUOTE_TO_BASE);
                         CryptoCurrencyEquivalence equivalence = new CryptoCurrencyEquivalence(baseAsset.getId(), quoteAsset.getId(), (int) (Math.pow(10, baseAsset.getPrecision()) * equiValue), new Date());
                         CrystalDatabase.getAppDatabase(context).cryptoCurrencyEquivalenceDao().insertCryptoCurrencyEquivalence(equivalence);
                         break;

app/src/main/java/cy/agorise/crystalwallet/application/CrystalApplication.java

@@ -6,6 +6,11 @@ import android.content.Intent;
 import com.idescout.sql.SqlScoutServer;
 
 import cy.agorise.crystalwallet.dao.CrystalDatabase;
+import cy.agorise.crystalwallet.enums.CryptoNet;
+import cy.agorise.crystalwallet.models.BitsharesAsset;
+import cy.agorise.crystalwallet.models.BitsharesAssetInfo;
+import cy.agorise.crystalwallet.models.CryptoCurrencyEquivalence;
+import cy.agorise.crystalwallet.network.CryptoNetManager;
 import cy.agorise.crystalwallet.service.CrystalWalletService;
 
 /**
@@ -15,6 +20,25 @@ import cy.agorise.crystalwallet.service.CrystalWalletService;
  */
 
 public class CrystalApplication extends Application {
+    public static String BITSHARES_URL[] =
+            {
+                    "wss://de.palmpay.io/ws",                   // Custom node
+                    "wss://bitshares.nu/ws",
+                    "wss://dexnode.net/ws",                    // Dallas, USA
+                    "wss://bitshares.crypto.fans/ws",          // Munich, Germany
+                    "wss://bitshares.openledger.info/ws",      // Openledger node
+                    "ws://185.208.208.147:8090"                   // Custom node
+            };
+
+    public static String BITSHARES_TESTNET_URL[] =
+            {
+                    "http://185.208.208.147:11012",      // Openledger node
+            };
+
+    //This is for testing the equivalent values on the testnet TODO remove
+    public static BitsharesAsset bitUSDAsset = new BitsharesAsset("USD",4,"1.3.121",BitsharesAsset.Type.SMART_COIN);
+    //This is for testing the equivalent values on the testnet TODO remove
+    public static BitsharesAsset bitEURAsset = new BitsharesAsset("EUR",4,"1.3.120",BitsharesAsset.Type.SMART_COIN);
 
     @Override
     public void onCreate() {
@@ -24,6 +48,36 @@ public class CrystalApplication extends Application {
         CrystalDatabase db = CrystalDatabase.getAppDatabase(this.getApplicationContext());
         SqlScoutServer.create(this, getPackageName());
 
+        //Using Bitshares Agorise Testnet
+        CryptoNetManager.addCryptoNetURL(CryptoNet.BITSHARES,BITSHARES_TESTNET_URL);
+
+        //This is for testing the equivalent values on the testnet TODO remove
+        if(db.bitsharesAssetDao().getBitsharesAssetInfoById(bitEURAsset.getBitsharesId())== null){
+            if(db.cryptoCurrencyDao().getByName(bitEURAsset.getName())== null){
+                db.cryptoCurrencyDao().insertCryptoCurrency(bitEURAsset);
+            }
+            long idCurrency = db.cryptoCurrencyDao().getByName(bitEURAsset.getName()).getId();
+            BitsharesAssetInfo info = new BitsharesAssetInfo(bitEURAsset);
+            info.setCryptoCurrencyId(idCurrency);
+            db.bitsharesAssetDao().insertBitsharesAssetInfo(info);
+
+        }
+
+        //This is for testing the equivalent values on the testnet TODO remove
+        if(db.bitsharesAssetDao().getBitsharesAssetInfoById(bitUSDAsset.getBitsharesId())== null){
+            if(db.cryptoCurrencyDao().getByName(bitUSDAsset.getName())== null){
+                db.cryptoCurrencyDao().insertCryptoCurrency(bitUSDAsset);
+            }
+            long idCurrency = db.cryptoCurrencyDao().getByName(bitUSDAsset.getName()).getId();
+            BitsharesAssetInfo info = new BitsharesAssetInfo(bitUSDAsset);
+            info.setCryptoCurrencyId(idCurrency);
+            db.bitsharesAssetDao().insertBitsharesAssetInfo(info);
+
+        }
+
+        //Next line is for use the bitshares main net
+        //CryptoNetManager.addCryptoNetURL(CryptoNet.BITSHARES,BITSHARES_URL);
+
         Intent intent = new Intent(getApplicationContext(), CrystalWalletService.class);
         startService(intent);
     }

app/src/main/java/cy/agorise/crystalwallet/application/CrystalSecurityMonitor.java

@@ -0,0 +1,109 @@
+package cy.agorise.crystalwallet.application;
+
+import android.app.Activity;
+
+import android.app.Application;
+import android.arch.lifecycle.LiveData;
+import android.arch.lifecycle.Observer;
+import android.arch.lifecycle.ViewModelProviders;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.FragmentActivity;
+
+import java.util.List;
+
+import cy.agorise.crystalwallet.activities.PinRequestActivity;
+import cy.agorise.crystalwallet.models.GeneralSetting;
+import cy.agorise.crystalwallet.viewmodels.GeneralSettingListViewModel;
+
+/**
+ * Created by Henry Varona on 27/1/2018.
+ */
+
+public class CrystalSecurityMonitor implements Application.ActivityLifecycleCallbacks {
+    private int numStarted = 0;
+    private String passwordEncrypted;
+
+    public CrystalSecurityMonitor(final FragmentActivity fragmentActivity){
+        GeneralSettingListViewModel generalSettingListViewModel = ViewModelProviders.of(fragmentActivity).get(GeneralSettingListViewModel.class);
+        LiveData<List<GeneralSetting>> generalSettingsLiveData = generalSettingListViewModel.getGeneralSettingList();
+
+        generalSettingsLiveData.observe(fragmentActivity, new Observer<List<GeneralSetting>>() {
+            @Override
+            public void onChanged(@Nullable List<GeneralSetting> generalSettings) {
+                boolean founded = false;
+                passwordEncrypted = "";
+
+                if (generalSettings != null){
+                    for (GeneralSetting generalSetting:generalSettings) {
+                        if (generalSetting.getName().equals(GeneralSetting.SETTING_PASSWORD)){
+                            founded = true;
+                            if (!generalSetting.getValue().isEmpty()){
+                                passwordEncrypted = generalSetting.getValue();
+                                callPasswordRequest(fragmentActivity);
+                            }
+                            break;
+                        }
+                    }
+                }
+            }
+        });
+    }
+
+    @Override
+    public void onActivityStarted(Activity activity) {
+        if (numStarted == 0) {
+            if ((this.passwordEncrypted != null) && (!this.passwordEncrypted.equals(""))) {
+                callPasswordRequest(activity);
+            }
+        }
+        numStarted++;
+    }
+
+    @Override
+    public void onActivityStopped(Activity activity) {
+        numStarted--;
+        if (numStarted == 0) {
+            if ((this.passwordEncrypted != null) && (!this.passwordEncrypted.equals(""))) {
+                callPasswordRequest(activity);
+            }
+        }
+    }
+
+    public void callPasswordRequest(Activity activity){
+        if ((!activity.getIntent().hasExtra("ACTIVITY_TYPE")) || (!activity.getIntent().getStringExtra("ACTIVITY_TYPE").equals("PASSWORD_REQUEST"))) {
+            Intent intent = new Intent(activity, PinRequestActivity.class);
+            intent.putExtra("ACTIVITY_TYPE", "PASSWORD_REQUEST");
+            activity.startActivity(intent);
+        }
+    }
+
+    @Override
+    public void onActivityCreated(Activity activity, Bundle bundle) {
+        //
+    }
+
+    @Override
+    public void onActivityResumed(Activity activity) {
+        //
+    }
+
+    @Override
+    public void onActivityPaused(Activity activity) {
+        //
+    }
+
+    @Override
+    public void onActivitySaveInstanceState(Activity activity, Bundle bundle) {
+        //
+    }
+
+    @Override
+    public void onActivityDestroyed(Activity activity) {
+        //
+    }
+
+
+
+}

app/src/main/java/cy/agorise/crystalwallet/dao/ContactDao.java

@@ -3,13 +3,16 @@ package cy.agorise.crystalwallet.dao;
 import android.arch.lifecycle.LiveData;
 import android.arch.paging.LivePagedListProvider;
 import android.arch.persistence.room.Dao;
+import android.arch.persistence.room.Delete;
 import android.arch.persistence.room.Insert;
 import android.arch.persistence.room.OnConflictStrategy;
 import android.arch.persistence.room.Query;
+import android.arch.persistence.room.Update;
 
 import java.util.List;
 
 import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.models.ContactAddress;
 import cy.agorise.crystalwallet.models.CryptoCoinTransaction;
 
 /**
@@ -24,6 +27,33 @@ public interface ContactDao {
     @Query("SELECT * FROM contact ORDER BY name ASC")
     LivePagedListProvider<Integer, Contact>  contactsByName();
 
+    @Query("SELECT c.* FROM contact c WHERE c.id IN (SELECT DISTINCT(ca.contact_id) FROM contact_address ca WHERE ca.crypto_net == :cryptoNet) ORDER BY name ASC, email ASC")
+    LivePagedListProvider<Integer, Contact>  contactsByNameAndCryptoNet(String cryptoNet);
+
     @Query("SELECT * FROM contact WHERE id = :id")
     LiveData<Contact> getById(long id);
+
+    @Query("SELECT count(*) FROM contact WHERE name = :name")
+    boolean existsByName(String name);
+
+    @Query("SELECT * FROM contact_address WHERE contact_id = :contactId")
+    LiveData<List<ContactAddress>> getContactAddresses(long contactId);
+
+    @Update(onConflict = OnConflictStrategy.ABORT)
+    public void update(Contact... contacts);
+
+    @Insert(onConflict = OnConflictStrategy.ABORT)
+    public long[] add(Contact... contacts);
+
+    @Insert(onConflict = OnConflictStrategy.ABORT)
+    public void addAddresses(ContactAddress... contactAddresses);
+
+    @Update(onConflict = OnConflictStrategy.REPLACE)
+    public void updateAddresses(ContactAddress... contactAddresses);
+
+    @Update(onConflict = OnConflictStrategy.REPLACE)
+    public void updateAddressesFields(ContactAddress... contactAddresses);
+
+    @Delete
+    public void deleteContacts(Contact... contacts);
 }

app/src/main/java/cy/agorise/crystalwallet/dao/CryptoCurrencyDao.java

@@ -1,5 +1,6 @@
 package cy.agorise.crystalwallet.dao;
 
+import android.arch.lifecycle.LiveData;
 import android.arch.persistence.room.Dao;
 import android.arch.persistence.room.Insert;
 import android.arch.persistence.room.OnConflictStrategy;
@@ -28,6 +29,9 @@ public interface CryptoCurrencyDao {
     @Query("SELECT * FROM crypto_currency WHERE id IN (:ids)")
     List<CryptoCurrency> getByIds(List<Long> ids);
 
+    @Query("SELECT * FROM crypto_currency WHERE name = :name")
+    LiveData<CryptoCurrency> getLiveDataByName(String name);
+
     @Query("SELECT * FROM crypto_currency WHERE name = :name")
     CryptoCurrency getByName(String name);
 

app/src/main/java/cy/agorise/crystalwallet/dao/CrystalDatabase.java

@@ -10,6 +10,7 @@ import cy.agorise.crystalwallet.dao.converters.Converters;
 import cy.agorise.crystalwallet.models.AccountSeed;
 import cy.agorise.crystalwallet.models.BitsharesAssetInfo;
 import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.models.ContactAddress;
 import cy.agorise.crystalwallet.models.CryptoCoinBalance;
 import cy.agorise.crystalwallet.models.CryptoCoinTransaction;
 import cy.agorise.crystalwallet.models.CryptoCurrency;
@@ -28,6 +29,7 @@ import cy.agorise.crystalwallet.models.GrapheneAccountInfo;
         CryptoNetAccount.class,
         CryptoCoinTransaction.class,
         Contact.class,
+        ContactAddress.class,
         CryptoCurrency.class,
         CryptoCoinBalance.class,
         GrapheneAccountInfo.class,

app/src/main/java/cy/agorise/crystalwallet/dao/TransactionDao.java

@@ -7,6 +7,7 @@ import android.arch.persistence.room.Insert;
 import android.arch.persistence.room.OnConflictStrategy;
 import android.arch.persistence.room.Query;
 
+import java.util.Date;
 import java.util.List;
 
 import cy.agorise.crystalwallet.models.CryptoCoinTransaction;
@@ -32,6 +33,9 @@ public interface TransactionDao {
     @Query("SELECT * FROM crypto_coin_transaction WHERE id = :id")
     LiveData<CryptoCoinTransaction> getById(long id);
 
+    @Query("SELECT * FROM crypto_coin_transaction WHERE date = :date and 'from' = :from and 'to' = :to and amount = :amount ")
+    CryptoCoinTransaction getByTransaction(Date date, String from, String to, long amount);
+
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     public long[] insertTransaction(CryptoCoinTransaction... transactions);
 

app/src/main/java/cy/agorise/crystalwallet/fragments/ContactSelectionFragment.java

@@ -0,0 +1,129 @@
+package cy.agorise.crystalwallet.fragments;
+
+import android.app.Dialog;
+import android.arch.lifecycle.LiveData;
+import android.arch.lifecycle.Observer;
+import android.arch.lifecycle.ViewModelProviders;
+import android.arch.paging.PagedList;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.design.widget.FloatingActionButton;
+import android.support.v4.app.DialogFragment;
+import android.support.v7.app.AlertDialog;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.text.Editable;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.Window;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.Spinner;
+import android.widget.TextView;
+
+import com.google.zxing.Result;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+import butterknife.OnItemSelected;
+import butterknife.OnTextChanged;
+import cy.agorise.crystalwallet.R;
+import cy.agorise.crystalwallet.cryptonetinforequests.CryptoNetInfoRequestListener;
+import cy.agorise.crystalwallet.cryptonetinforequests.CryptoNetInfoRequests;
+import cy.agorise.crystalwallet.cryptonetinforequests.ValidateBitsharesSendRequest;
+import cy.agorise.crystalwallet.dao.CrystalDatabase;
+import cy.agorise.crystalwallet.enums.CryptoNet;
+import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.models.CryptoCoinBalance;
+import cy.agorise.crystalwallet.models.CryptoCurrency;
+import cy.agorise.crystalwallet.models.CryptoNetAccount;
+import cy.agorise.crystalwallet.models.GrapheneAccount;
+import cy.agorise.crystalwallet.viewmodels.ContactListViewModel;
+import cy.agorise.crystalwallet.viewmodels.CryptoNetAccountListViewModel;
+import cy.agorise.crystalwallet.viewmodels.validators.SendTransactionValidator;
+import cy.agorise.crystalwallet.viewmodels.validators.UIValidatorListener;
+import cy.agorise.crystalwallet.viewmodels.validators.validationfields.ValidationField;
+import cy.agorise.crystalwallet.views.ContactSelectionListAdapter;
+import cy.agorise.crystalwallet.views.CryptoCurrencyAdapter;
+import cy.agorise.crystalwallet.views.CryptoNetAccountAdapter;
+import me.dm7.barcodescanner.zxing.ZXingScannerView;
+
+public class ContactSelectionFragment extends DialogFragment implements ContactSelectionListAdapter.ContactSelectionListAdapterListener{
+
+    private CryptoNet cryptoNet;
+    private CrystalDatabase db;
+    private AlertDialog.Builder builder;
+
+    @BindView(R.id.contactListView)
+    RecyclerView contactSelectionListView;
+
+    public static ContactSelectionFragment newInstance(CryptoNet cryptoNet) {
+        ContactSelectionFragment f = new ContactSelectionFragment();
+
+        // Supply num input as an argument.
+        Bundle args = new Bundle();
+        args.putString("CRYPTO_NET", cryptoNet.name());
+        f.setArguments(args);
+
+        return f;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @NonNull
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        //AlertDialog.Builder
+        builder = new AlertDialog.Builder(getActivity(), R.style.SendTransactionTheme);
+
+        LayoutInflater inflater = getActivity().getLayoutInflater();
+        View view = inflater.inflate(R.layout.contact_list, null);
+        ButterKnife.bind(this, view);
+
+        final LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this.getContext());
+        this.contactSelectionListView.setLayoutManager(linearLayoutManager);
+        //Prevents the list to start again when scrolling to the end
+        this.contactSelectionListView.setNestedScrollingEnabled(false);
+        final ContactSelectionListAdapter contactSelectionListAdapter = new ContactSelectionListAdapter();
+        contactSelectionListAdapter.setListener(this);
+        contactSelectionListView.setAdapter(contactSelectionListAdapter);
+
+        this.cryptoNet  = CryptoNet.valueOf(getArguments().getString("CRYPTO_NET"));
+        if (this.cryptoNet != null) {
+            ContactListViewModel contactListViewModel = ViewModelProviders.of(this).get(ContactListViewModel.class);
+            contactListViewModel.init(this.cryptoNet);
+            LiveData<PagedList<Contact>> contactsLiveData = contactListViewModel.getContactList();
+
+            contactsLiveData.observe(this, new Observer<PagedList<Contact>>() {
+                @Override
+                public void onChanged(@Nullable PagedList<Contact> contacts) {
+                    contactSelectionListAdapter.setList(contacts);
+                }
+            });
+        }
+
+        return builder.setView(view).create();
+    }
+
+    @Override
+    public void onContactSelected(Contact contact) {
+        Intent result = new Intent();
+        result.putExtra("CONTACT_ID", contact.getId());
+        getTargetFragment().onActivityResult(getTargetRequestCode(), 1, result);
+        this.dismiss();
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/fragments/ContactsFragment.java

@@ -1,14 +1,28 @@
 package cy.agorise.crystalwallet.fragments;
 
+import android.arch.lifecycle.LiveData;
+import android.arch.lifecycle.Observer;
+import android.arch.lifecycle.ViewModelProviders;
+import android.arch.paging.PagedList;
 import android.os.Bundle;
+import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import butterknife.BindView;
+import butterknife.ButterKnife;
 import cy.agorise.crystalwallet.R;
+import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.viewmodels.ContactListViewModel;
+import cy.agorise.crystalwallet.views.ContactListView;
 
 public class ContactsFragment extends Fragment {
+
+    @BindView(R.id.vContactListView)
+    ContactListView contactListView;
+
     public ContactsFragment() {
         // Required empty public constructor
     }
@@ -29,6 +43,20 @@ public class ContactsFragment extends Fragment {
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
         // Inflate the layout for this fragment
-        return inflater.inflate(R.layout.fragment_contacts, container, false);
+        View v = inflater.inflate(R.layout.fragment_contacts, container, false);
+        ButterKnife.bind(this, v);
+
+        ContactListViewModel contactListViewModel = ViewModelProviders.of(this).get(ContactListViewModel.class);
+        contactListViewModel.init();
+        LiveData<PagedList<Contact>> contactsLiveData = contactListViewModel.getContactList();
+
+        contactsLiveData.observe(this, new Observer<PagedList<Contact>>() {
+            @Override
+            public void onChanged(@Nullable PagedList<Contact> contacts) {
+                contactListView.setData(contacts);
+            }
+        });
+
+        return v;
     }
 }

app/src/main/java/cy/agorise/crystalwallet/fragments/GeneralSettingsFragment.java

@@ -1,19 +1,44 @@
 package cy.agorise.crystalwallet.fragments;
 
+import android.arch.lifecycle.LiveData;
+import android.arch.lifecycle.Observer;
+import android.arch.lifecycle.ViewModelProviders;
 import android.os.Bundle;
+import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.Spinner;
 
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Currency;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Locale;
+
+import butterknife.BindView;
 import butterknife.ButterKnife;
+import butterknife.OnItemSelected;
 import cy.agorise.crystalwallet.R;
+import cy.agorise.crystalwallet.models.GeneralSetting;
+import cy.agorise.crystalwallet.viewmodels.GeneralSettingListViewModel;
 
 /**
  * Created by xd on 12/28/17.
  */
 
 public class GeneralSettingsFragment extends Fragment {
+
+    private HashMap<String,String> countriesMap;
+    private GeneralSettingListViewModel generalSettingListViewModel;
+    private LiveData<List<GeneralSetting>> generalSettingListLiveData;
+
+    @BindView (R.id.spTaxableCountry)
+    Spinner spTaxableCountry;
+
     public GeneralSettingsFragment() {
         // Required empty public constructor
     }
@@ -37,6 +62,83 @@ public class GeneralSettingsFragment extends Fragment {
         View v = inflater.inflate(R.layout.fragment_general_settings, container, false);
         ButterKnife.bind(this, v);
 
+        generalSettingListViewModel = ViewModelProviders.of(this).get(GeneralSettingListViewModel.class);
+        generalSettingListLiveData = generalSettingListViewModel.getGeneralSettingList();
+
+        // Initializes the countries spinner
+        countriesMap = new HashMap<String, String>();
+        String[] countryCodeList = Locale.getISOCountries();
+        ArrayList<String> countryAndCurrencyList = new ArrayList<String>();
+        String countryAndCurrencyLabel = "";
+        for (String countryCode : countryCodeList) {
+            Locale locale = new Locale("", countryCode);
+            try {
+                Currency currency = Currency.getInstance(locale);
+                countryAndCurrencyLabel = locale.getDisplayCountry() + " (" + currency.getCurrencyCode() + ")";
+                countryAndCurrencyList.add(countryAndCurrencyLabel);
+                countriesMap.put(countryCode, countryAndCurrencyLabel);
+                countriesMap.put(countryAndCurrencyLabel, countryCode);
+            } catch (Exception e) {
+
+            }
+        }
+        Collections.sort(countryAndCurrencyList);
+        countryAndCurrencyList.add(0,"SELECT COUNTRY");
+        ArrayAdapter<String> countryAdapter = new ArrayAdapter<String>(this.getContext(), android.R.layout.simple_spinner_item, countryAndCurrencyList);
+        spTaxableCountry.setAdapter(countryAdapter);
+
+        //Observes the general settings data
+        generalSettingListLiveData.observe(this, new Observer<List<GeneralSetting>>() {
+            @Override
+            public void onChanged(@Nullable List<GeneralSetting> generalSettings) {
+                loadSettings(generalSettings);
+            }
+        });
+
         return v;
     }
+
+    public GeneralSetting getSetting(String name){
+        for (GeneralSetting generalSetting:this.generalSettingListLiveData.getValue()) {
+            if (generalSetting.getName().equals(name)) {
+                return generalSetting;
+            }
+        }
+
+        return null;
+    }
+
+    @OnItemSelected(R.id.spTaxableCountry)
+    void onItemSelected(int position) {
+        if (position != 0) {
+            GeneralSetting generalSettingCountryCode = this.getSetting(GeneralSetting.SETTING_NAME_PREFERED_COUNTRY);
+            GeneralSetting generalSettingCurrency = this.getSetting(GeneralSetting.SETTING_NAME_PREFERED_CURRENCY);
+
+            if (generalSettingCountryCode == null){
+                generalSettingCountryCode = new GeneralSetting();
+                generalSettingCountryCode.setName(GeneralSetting.SETTING_NAME_PREFERED_COUNTRY);
+            }
+            if (generalSettingCurrency == null){
+                generalSettingCurrency = new GeneralSetting();
+                generalSettingCurrency.setName(GeneralSetting.SETTING_NAME_PREFERED_CURRENCY);
+            }
+
+            String countryCode = countriesMap.get((String) spTaxableCountry.getSelectedItem());
+            Locale locale = new Locale("", countryCode);
+            Currency currency = Currency.getInstance(locale);
+
+            generalSettingCountryCode.setValue(countryCode);
+            generalSettingCurrency.setValue(currency.getCurrencyCode());
+            this.generalSettingListViewModel.saveGeneralSettings(generalSettingCountryCode, generalSettingCurrency);
+        }
+    }
+
+    public void loadSettings(List<GeneralSetting> generalSettings){
+        for (GeneralSetting generalSetting:generalSettings) {
+            if (generalSetting.getName().equals(GeneralSetting.SETTING_NAME_PREFERED_COUNTRY)){
+                String preferedCountryCode = generalSetting.getValue();
+                spTaxableCountry.setSelection(((ArrayAdapter<String>)spTaxableCountry.getAdapter()).getPosition(countriesMap.get(preferedCountryCode)));
+            }
+        }
+    }
 }

app/src/main/java/cy/agorise/crystalwallet/fragments/PinSecurityFragment.java

@@ -1,19 +1,60 @@
 package cy.agorise.crystalwallet.fragments;
 
+import android.arch.lifecycle.LiveData;
+import android.arch.lifecycle.Observer;
+import android.arch.lifecycle.ViewModelProviders;
 import android.os.Bundle;
+import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
+import android.text.Editable;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.EditText;
+import android.widget.TextView;
+import android.widget.Toast;
 
+import java.util.List;
+
+import butterknife.BindView;
 import butterknife.ButterKnife;
+import butterknife.OnTextChanged;
 import cy.agorise.crystalwallet.R;
+import cy.agorise.crystalwallet.activities.CreateSeedActivity;
+import cy.agorise.crystalwallet.dao.CrystalDatabase;
+import cy.agorise.crystalwallet.models.GeneralSetting;
+import cy.agorise.crystalwallet.util.PasswordManager;
+import cy.agorise.crystalwallet.viewmodels.GeneralSettingListViewModel;
+import cy.agorise.crystalwallet.viewmodels.validators.PinSecurityValidator;
+import cy.agorise.crystalwallet.viewmodels.validators.UIValidatorListener;
+import cy.agorise.crystalwallet.viewmodels.validators.validationfields.ValidationField;
 
 /**
  * Created by xd on 1/18/18.
  */
 
-public class PinSecurityFragment extends Fragment {
+public class PinSecurityFragment extends Fragment implements UIValidatorListener {
+
+    @BindView(R.id.tvCurrentPin)
+    TextView tvCurrentPin;
+    @BindView(R.id.etCurrentPin)
+    EditText etCurrentPin;
+    @BindView(R.id.etNewPin)
+    EditText etNewPin;
+    @BindView(R.id.etConfirmPin)
+    EditText etConfirmPin;
+
+    @BindView(R.id.tvCurrentPinError)
+    TextView tvCurrentPinError;
+    @BindView(R.id.tvNewPinError)
+    TextView tvNewPinError;
+    @BindView(R.id.tvConfirmPinError)
+    TextView tvConfirmPinError;
+
+    GeneralSettingListViewModel generalSettingListViewModel;
+    GeneralSetting passwordGeneralSetting;
+    PinSecurityValidator pinSecurityValidator;
 
     public PinSecurityFragment() {
         // Required empty public constructor
@@ -33,6 +74,140 @@ public class PinSecurityFragment extends Fragment {
         View v = inflater.inflate(R.layout.fragment_pin_security, container, false);
         ButterKnife.bind(this, v);
 
+        generalSettingListViewModel = ViewModelProviders.of(this).get(GeneralSettingListViewModel.class);
+        LiveData<List<GeneralSetting>> generalSettingsLiveData = generalSettingListViewModel.getGeneralSettingList();
+
+        pinSecurityValidator = new PinSecurityValidator(this.getContext(), etCurrentPin, etNewPin, etConfirmPin);
+        pinSecurityValidator.setListener(this);
+
+        generalSettingsLiveData.observe(this, new Observer<List<GeneralSetting>>() {
+            @Override
+            public void onChanged(@Nullable List<GeneralSetting> generalSettings) {
+                boolean founded = false;
+
+                if (generalSettings != null){
+                    for (GeneralSetting generalSetting:generalSettings) {
+                        if (generalSetting.getName().equals(GeneralSetting.SETTING_PASSWORD)){
+                            founded = true;
+                            if (!generalSetting.getValue().isEmpty()){
+                                passwordGeneralSetting = generalSetting;
+                                showCurrentPinUI(true);
+                            } else {
+                                showCurrentPinUI(false);
+                            }
+                            break;
+                        }
+                    }
+                    if (!founded){
+                        showCurrentPinUI(false);
+                    }
+                } else {
+                    showCurrentPinUI(false);
+                }
+            }
+        });
+
         return v;
     }
+
+    public void showCurrentPinUI(Boolean visible){
+        if (visible){
+            tvCurrentPin.setVisibility(View.VISIBLE);
+            etCurrentPin.setVisibility(View.VISIBLE);
+        } else {
+            tvCurrentPin.setVisibility(View.GONE);
+            etCurrentPin.setVisibility(View.GONE);
+        }
+    }
+
+    @OnTextChanged(value = R.id.etCurrentPin,
+            callback = OnTextChanged.Callback.AFTER_TEXT_CHANGED)
+    void afterCurrentPinChanged(Editable editable) {
+        this.pinSecurityValidator.validate();
+    }
+
+    @OnTextChanged(value = R.id.etNewPin,
+            callback = OnTextChanged.Callback.AFTER_TEXT_CHANGED)
+    void afterNewPinChanged(Editable editable) {
+        this.pinSecurityValidator.validate();
+    }
+
+    @OnTextChanged(value = R.id.etConfirmPin,
+            callback = OnTextChanged.Callback.AFTER_TEXT_CHANGED)
+    void afterConfirmPinChanged(Editable editable) {
+        this.pinSecurityValidator.validate();
+    }
+
+    public void clearFields(){
+        if (!this.etCurrentPin.getText().toString().equals("")) {
+            this.etCurrentPin.setText("");
+        }
+        if (!this.etNewPin.getText().toString().equals("")) {
+            this.etNewPin.setText("");
+        }
+        if (!this.etConfirmPin.getText().toString().equals("")) {
+            this.etConfirmPin.setText("");
+        }
+    }
+
+    @Override
+    public void onValidationSucceeded(final ValidationField field) {
+        final PinSecurityFragment fragment = this;
+
+        this.getActivity().runOnUiThread(new Runnable() {
+            public void run() {
+
+                if (field.getView() == etCurrentPin) {
+                    tvCurrentPinError.setText("");
+                } else if (field.getView() == etNewPin){
+                    tvNewPinError.setText("");
+                } else if (field.getView() == etConfirmPin){
+                    tvConfirmPinError.setText("");
+                }
+
+                if (pinSecurityValidator.isValid()){
+                    CharSequence text = "Your password has been sucessfully changed!";
+                    int duration = Toast.LENGTH_SHORT;
+
+                    Toast toast = Toast.makeText(getContext(), text, duration);
+                    toast.show();
+                    //showCurrentPinUI(true);
+
+                    savePassword(etNewPin.getText().toString());
+
+
+                    clearFields();
+                }
+            }
+        });
+    }
+
+    public void savePassword(String password) {
+        String passwordEncripted = PasswordManager.encriptPassword(password);
+
+        if (passwordGeneralSetting == null) {
+            passwordGeneralSetting = new GeneralSetting();
+            passwordGeneralSetting.setName(GeneralSetting.SETTING_PASSWORD);
+        }
+
+        passwordGeneralSetting.setValue(passwordEncripted);
+        generalSettingListViewModel.saveGeneralSetting(passwordGeneralSetting);
+    }
+
+    @Override
+    public void onValidationFailed(final ValidationField field) {
+        this.getActivity().runOnUiThread(new Runnable() {
+
+            @Override
+            public void run() {
+                if (field.getView() == etCurrentPin) {
+                    tvCurrentPinError.setText(field.getMessage());
+                } else if (field.getView() == etNewPin){
+                    tvNewPinError.setText(field.getMessage());
+                } else if (field.getView() == etConfirmPin){
+                    tvConfirmPinError.setText(field.getMessage());
+                }
+            }
+        });
+    }
 }

app/src/main/java/cy/agorise/crystalwallet/fragments/ReceiveTransactionFragment.java

@@ -4,6 +4,7 @@ import android.app.Dialog;
 import android.app.LauncherActivity;
 import android.arch.lifecycle.LiveData;
 import android.arch.lifecycle.Observer;
+import android.arch.lifecycle.ViewModelProviders;
 import android.content.DialogInterface;
 import android.graphics.Bitmap;
 import android.os.Bundle;
@@ -31,6 +32,8 @@ import com.google.zxing.WriterException;
 import com.google.zxing.common.BitMatrix;
 
 import butterknife.OnClick;
+import cy.agorise.crystalwallet.viewmodels.CryptoNetAccountListViewModel;
+import cy.agorise.crystalwallet.views.CryptoNetAccountAdapter;
 import cy.agorise.graphenej.Invoice;
 import java.util.ArrayList;
 import java.util.List;
@@ -57,6 +60,8 @@ public class ReceiveTransactionFragment extends DialogFragment implements UIVali
 
     ReceiveTransactionValidator receiveTransactionValidator;
 
+    @BindView(R.id.spTo)
+    Spinner spTo;
     @BindView(R.id.etAmount)
     EditText etAmount;
     @BindView(R.id.tvAmountError)
@@ -145,6 +150,12 @@ public class ReceiveTransactionFragment extends DialogFragment implements UIVali
 
             receiveTransactionValidator = new ReceiveTransactionValidator(this.getContext(), this.cryptoNetAccount, spAsset, etAmount);
             receiveTransactionValidator.setListener(this);
+
+            CryptoNetAccountListViewModel cryptoNetAccountListViewModel = ViewModelProviders.of(this).get(CryptoNetAccountListViewModel.class);
+            List<CryptoNetAccount> cryptoNetAccounts = cryptoNetAccountListViewModel.getCryptoNetAccountList();
+            CryptoNetAccountAdapter toSpinnerAdapter = new CryptoNetAccountAdapter(this.getContext(), android.R.layout.simple_spinner_item, cryptoNetAccounts);
+            spTo.setAdapter(toSpinnerAdapter);
+            spTo.setSelection(0);
         }
 
         builder.setView(view);
@@ -199,6 +210,11 @@ public class ReceiveTransactionFragment extends DialogFragment implements UIVali
         }, 400);
     }
 
+    @OnItemSelected(R.id.spTo)
+    public void afterToSelected(Spinner spinner, int position) {
+        this.receiveTransactionValidator.validate();
+    }
+
     @OnTextChanged(value = R.id.etAmount,
             callback = OnTextChanged.Callback.AFTER_TEXT_CHANGED)
     void afterAmountChanged(Editable editable) {

app/src/main/java/cy/agorise/crystalwallet/fragments/SendTransactionFragment.java

@@ -5,6 +5,7 @@ import android.arch.lifecycle.LiveData;
 import android.arch.lifecycle.Observer;
 import android.arch.lifecycle.ViewModelProviders;
 import android.content.DialogInterface;
+import android.content.Intent;
 import android.os.Bundle;
 import android.os.Handler;
 import android.support.annotation.NonNull;
@@ -12,6 +13,7 @@ import android.support.annotation.Nullable;
 import android.support.design.widget.FloatingActionButton;
 import android.support.v4.app.DialogFragment;
 import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentTransaction;
 import android.support.v7.app.AlertDialog;
 import android.support.v7.app.AppCompatActivity;
 import android.text.Editable;
@@ -23,13 +25,19 @@ import android.view.Window;
 import android.view.animation.LinearInterpolator;
 import android.widget.Button;
 import android.widget.EditText;
+import android.widget.ImageView;
 import android.widget.Spinner;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import com.google.zxing.Result;
 
+import java.math.RoundingMode;
+import java.text.DecimalFormat;
+import java.text.DecimalFormatSymbols;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Locale;
 
 import butterknife.BindView;
 import butterknife.ButterKnife;
@@ -41,10 +49,13 @@ import cy.agorise.crystalwallet.cryptonetinforequests.CryptoNetInfoRequestListen
 import cy.agorise.crystalwallet.cryptonetinforequests.CryptoNetInfoRequests;
 import cy.agorise.crystalwallet.cryptonetinforequests.ValidateBitsharesSendRequest;
 import cy.agorise.crystalwallet.dao.CrystalDatabase;
+import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.models.ContactAddress;
 import cy.agorise.crystalwallet.models.CryptoCoinBalance;
 import cy.agorise.crystalwallet.models.CryptoCurrency;
 import cy.agorise.crystalwallet.models.CryptoNetAccount;
 import cy.agorise.crystalwallet.models.GrapheneAccount;
+import cy.agorise.crystalwallet.viewmodels.ContactViewModel;
 import cy.agorise.crystalwallet.viewmodels.CryptoNetAccountListViewModel;
 import cy.agorise.crystalwallet.viewmodels.CryptoNetAccountViewModel;
 import cy.agorise.crystalwallet.viewmodels.validators.SendTransactionValidator;
@@ -52,6 +63,8 @@ import cy.agorise.crystalwallet.viewmodels.validators.UIValidatorListener;
 import cy.agorise.crystalwallet.viewmodels.validators.validationfields.ValidationField;
 import cy.agorise.crystalwallet.views.CryptoCurrencyAdapter;
 import cy.agorise.crystalwallet.views.CryptoNetAccountAdapter;
+import cy.agorise.graphenej.Invoice;
+import cy.agorise.graphenej.LineItem;
 import me.dm7.barcodescanner.zxing.ZXingScannerView;
 
 public class SendTransactionFragment extends DialogFragment implements UIValidatorListener, ZXingScannerView.ResultHandler {
@@ -82,6 +95,9 @@ public class SendTransactionFragment extends DialogFragment implements UIValidat
     FloatingActionButton btnSend;
     @BindView(R.id.btnCancel)
     TextView btnCancel;
+    @BindView(R.id.ivPeople)
+    ImageView ivPeople;
+    CryptoCurrencyAdapter assetAdapter;
 
     Button btnScanQrCode;
 
@@ -145,7 +161,7 @@ public class SendTransactionFragment extends DialogFragment implements UIValidat
                     }
                     List<CryptoCurrency> cryptoCurrencyList = db.cryptoCurrencyDao().getByIds(assetIds);
 
-                    CryptoCurrencyAdapter assetAdapter = new CryptoCurrencyAdapter(getContext(), android.R.layout.simple_spinner_item, cryptoCurrencyList);
+                    assetAdapter = new CryptoCurrencyAdapter(getContext(), android.R.layout.simple_spinner_item, cryptoCurrencyList);
                     spAsset.setAdapter(assetAdapter);
                 }
             });
@@ -222,6 +238,50 @@ public class SendTransactionFragment extends DialogFragment implements UIValidat
         this.sendTransactionValidator.validate();
     }
 
+    @OnClick(R.id.ivPeople)
+    public void searchContact(){
+        FragmentTransaction ft = this.getActivity().getSupportFragmentManager().beginTransaction();
+        Fragment prev = this.getActivity().getSupportFragmentManager().findFragmentByTag("ContactSelectionDialog");
+        if (prev != null) {
+            ft.remove(prev);
+        }
+        ft.addToBackStack(null);
+
+        // Show a contact selection list
+        ContactSelectionFragment contactSelectionFragment = ContactSelectionFragment.newInstance(this.cryptoNetAccount.getCryptoNet());
+        contactSelectionFragment.setTargetFragment(this, 1);
+        contactSelectionFragment.show(ft, "ContactSelectionDialog");
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode,resultCode,data);
+
+        if(requestCode == 1) {
+            if(resultCode == 1) {
+                long contactId = data.getLongExtra("CONTACT_ID",-1);
+                if (contactId > -1){
+                    ContactViewModel contactViewModel = ViewModelProviders.of(this).get(ContactViewModel.class);
+                    contactViewModel.init(contactId);
+                    LiveData<List<ContactAddress>> contactAddressesLiveData = contactViewModel.getContactAddresses();
+
+                    contactAddressesLiveData.observe(this, new Observer<List<ContactAddress>>() {
+                        @Override
+                        public void onChanged(@Nullable List<ContactAddress> contactAddresses) {
+                            if (contactAddresses != null) {
+                                for (ContactAddress contactAddress : contactAddresses) {
+                                    if (contactAddress.getCryptoNet() == cryptoNetAccount.getCryptoNet()) {
+                                        etTo.setText(contactAddress.getAddress());
+                                    }
+                                }
+                            }
+                        }
+                    });
+                }
+            }
+        }
+    }
+
     @OnClick(R.id.btnCancel)
     public void cancel(){
         this.dismiss();
@@ -317,6 +377,27 @@ public class SendTransactionFragment extends DialogFragment implements UIValidat
 
     @Override
     public void handleResult(Result result) {
+        Invoice invoice = Invoice.fromQrCode(result.getText());
+
+        etTo.setText(invoice.getTo());
+
+        for (int i=0;i<assetAdapter.getCount();i++) {
+            if (assetAdapter.getItem(i).getName().equals(invoice.getCurrency())) {
+                spAsset.setSelection(i);
+                break;
+            }
+        }
+        etMemo.setText(invoice.getMemo());
+
+
+        double amount = 0.0;
+        for (LineItem nextItem : invoice.getLineItems()) {
+            amount += nextItem.getQuantity() * nextItem.getPrice();
+        }
+        DecimalFormat df = new DecimalFormat("####.####");
+        df.setRoundingMode(RoundingMode.CEILING);
+        df.setDecimalFormatSymbols(new DecimalFormatSymbols(Locale.ENGLISH));
+        etAmount.setText(df.format(amount));
         Log.i("SendFragment",result.getText());
     }
 }

app/src/main/java/cy/agorise/crystalwallet/manager/BitsharesAccountManager.java

@@ -1,5 +1,6 @@
 package cy.agorise.crystalwallet.manager;
 
+import android.annotation.SuppressLint;
 import android.content.Context;
 
 import com.google.common.primitives.UnsignedLong;
@@ -31,9 +32,11 @@ import cy.agorise.crystalwallet.models.AccountSeed;
 import cy.agorise.crystalwallet.models.BitsharesAsset;
 import cy.agorise.crystalwallet.models.BitsharesAssetInfo;
 import cy.agorise.crystalwallet.models.CryptoCoinTransaction;
+import cy.agorise.crystalwallet.models.CryptoCurrency;
 import cy.agorise.crystalwallet.models.CryptoNetAccount;
 import cy.agorise.crystalwallet.models.GrapheneAccount;
 import cy.agorise.crystalwallet.models.GrapheneAccountInfo;
+import cy.agorise.crystalwallet.network.CryptoNetManager;
 import cy.agorise.graphenej.Address;
 import cy.agorise.graphenej.Asset;
 import cy.agorise.graphenej.AssetAmount;
@@ -54,106 +57,157 @@ import cy.agorise.graphenej.operations.TransferOperationBuilder;
  */
 public class BitsharesAccountManager implements CryptoAccountManager, CryptoNetInfoRequestsListener {
 
-    private final static String BITSHARES_TESTNET_CHAIN_ID= "9cf6f255a208100d2bb275a3c52f4b1589b7ec9c9bfc2cb2a5fe6411295106d8";
+    //private final static String BITSHARES_TESTNET_CHAIN_ID= "9cf6f255a208100d2bb275a3c52f4b1589b7ec9c9bfc2cb2a5fe6411295106d8";
+
+    private final static String SIMPLE_DATE_FORMAT = "yyyy-MM-dd'T'HH:mm:ss";
+    private final static String DEFAULT_TIME_ZONE = "GMT";
 
     @Override
-    public CryptoNetAccount createAccountFromSeed(CryptoNetAccount account, Context context) {
+    public void createAccountFromSeed(CryptoNetAccount account, final ManagerRequest request, final Context context) {
         if(account instanceof  GrapheneAccount) {
 
-            GrapheneAccount grapheneAccount = (GrapheneAccount) account;
+            final GrapheneAccount grapheneAccount = (GrapheneAccount) account;
-            boolean created = BitsharesFaucetApiGenerator.registerBitsharesAccount(grapheneAccount.getName(),
+            ApiRequest creationRequest = new ApiRequest(1, new ApiRequestListener() {
+                @Override
+                public void success(Object answer, int idPetition) {
+                    getAccountInfoByName(grapheneAccount.getName(), new ManagerRequest() {
+                        @Override
+                        public void success(Object answer) {
+                            GrapheneAccount fetch = (GrapheneAccount) answer;
+                            fetch.setSeedId(grapheneAccount.getSeedId());
+                            fetch.setCryptoNet(grapheneAccount.getCryptoNet());
+                            fetch.setAccountIndex(grapheneAccount.getAccountIndex());
+
+                            CrystalDatabase db = CrystalDatabase.getAppDatabase(context);
+                            long idAccount = db.cryptoNetAccountDao().insertCryptoNetAccount(fetch)[0];
+                            fetch.setId(idAccount);
+                            db.grapheneAccountInfoDao().insertGrapheneAccountInfo(new GrapheneAccountInfo(fetch));
+                            subscribeBitsharesAccount(fetch.getId(),fetch.getAccountId(),context);
+                            request.success(fetch);
+                        }
+
+                        @Override
+                        public void fail() {
+                            //TODO get account data fail
+                        }
+                    });
+
+                }
+
+                @Override
+                public void fail(int idPetition) {
+                    request.fail();
+                }
+            });
+            BitsharesFaucetApiGenerator.registerBitsharesAccount(grapheneAccount.getName(),
                     new Address(ECKey.fromPublicOnly(grapheneAccount.getOwnerKey(context).getPubKey())).toString(),
                     new Address(ECKey.fromPublicOnly(grapheneAccount.getActiveKey(context).getPubKey())).toString(),
-                    new Address(ECKey.fromPublicOnly(grapheneAccount.getMemoKey(context).getPubKey())).toString(),GrapheneApiGenerator.faucetUrl);
+                    new Address(ECKey.fromPublicOnly(grapheneAccount.getMemoKey(context).getPubKey())).toString(),
-
+                    GrapheneApiGenerator.faucetUrl, creationRequest);
-            if(created) {
-                GrapheneAccount fetch = this.getAccountInfoByName(grapheneAccount.getName());
-                fetch.setSeedId(grapheneAccount.getSeedId());
-                fetch.setCryptoNet(grapheneAccount.getCryptoNet());
-                fetch.setAccountIndex(grapheneAccount.getAccountIndex());
-
-                CrystalDatabase db = CrystalDatabase.getAppDatabase(context);
-                long idAccount = db.cryptoNetAccountDao().insertCryptoNetAccount(fetch)[0];
-                fetch.setId(idAccount);
-                db.grapheneAccountInfoDao().insertGrapheneAccountInfo(new GrapheneAccountInfo(fetch));
-
-                GrapheneApiGenerator.subscribeBitsharesAccount(fetch.getId(), fetch.getAccountId(), context);
-                BitsharesAccountManager.refreshAccountTransactions(fetch.getId(), context);
-                GrapheneApiGenerator.getAccountBalance(fetch.getId(), fetch.getAccountId(), context);
-                return fetch;
-            }
         }
-        return null;
     }
 
     @Override
-    public CryptoNetAccount importAccountFromSeed(CryptoNetAccount account, Context context) {
+    public void importAccountFromSeed(CryptoNetAccount account, final Context context) {
 
         if(account instanceof GrapheneAccount) {
-            GrapheneAccount grapheneAccount = (GrapheneAccount) account;
+            final GrapheneAccount grapheneAccount = (GrapheneAccount) account;
 
             if(grapheneAccount.getAccountId() == null){
-                GrapheneAccount fetch = this.getAccountInfoByName(grapheneAccount.getName());
+                 this.getAccountInfoByName(grapheneAccount.getName(), new ManagerRequest() {
-                if(fetch == null) {
+                    @Override
-                    //TODO grapaheneAccount null, error fetching
+                    public void success(Object answer) {
-                    return null;
+                        GrapheneAccount fetch = (GrapheneAccount) answer;
-                }
+                        grapheneAccount.setAccountId(fetch.getAccountId());
-                grapheneAccount.setAccountId(fetch.getAccountId());
+                        CrystalDatabase db = CrystalDatabase.getAppDatabase(context);
+                        db.cryptoNetAccountDao().insertCryptoNetAccount(grapheneAccount);
+                        db.grapheneAccountInfoDao().insertGrapheneAccountInfo(new GrapheneAccountInfo(grapheneAccount));
+                        subscribeBitsharesAccount(grapheneAccount.getId(),grapheneAccount.getAccountId(),context);
+                    }
+
+                    @Override
+                    public void fail() {
+                        //TODO get account data fail
+                    }
+                });
+
             }else if(grapheneAccount.getName() == null){
-                GrapheneAccount fetch = this.getAccountInfoById(grapheneAccount.getAccountId());
+                this.getAccountInfoById(grapheneAccount.getAccountId(), new ManagerRequest() {
-                if(fetch == null) {
+                    @Override
-                    //TODO grapaheneAccount null, error fetching
+                    public void success(Object answer) {
-                    return null;
+                        GrapheneAccount fetch = (GrapheneAccount) answer;
-                }
+                        grapheneAccount.setName(fetch.getName());
-                grapheneAccount.setName(fetch.getName());
+                        CrystalDatabase db = CrystalDatabase.getAppDatabase(context);
+                        db.cryptoNetAccountDao().insertCryptoNetAccount(grapheneAccount);
+                        db.grapheneAccountInfoDao().insertGrapheneAccountInfo(new GrapheneAccountInfo(grapheneAccount));
+                        subscribeBitsharesAccount(grapheneAccount.getId(),grapheneAccount.getAccountId(),context);
+                    }
+
+                    @Override
+                    public void fail() {
+                        //TODO get account data fail
+                    }
+                });
+            }else {
+                CrystalDatabase db = CrystalDatabase.getAppDatabase(context);
+                db.cryptoNetAccountDao().insertCryptoNetAccount(grapheneAccount);
+                db.grapheneAccountInfoDao().insertGrapheneAccountInfo(new GrapheneAccountInfo(grapheneAccount));
+                subscribeBitsharesAccount(grapheneAccount.getId(), grapheneAccount.getAccountId(), context);
             }
-
-            CrystalDatabase db = CrystalDatabase.getAppDatabase(context);
-            db.cryptoNetAccountDao().insertCryptoNetAccount(grapheneAccount);
-            db.grapheneAccountInfoDao().insertGrapheneAccountInfo(new GrapheneAccountInfo(grapheneAccount));
-
-            GrapheneApiGenerator.subscribeBitsharesAccount(grapheneAccount.getId(), grapheneAccount.getAccountId(), context);
-            BitsharesAccountManager.refreshAccountTransactions(account.getId(), context);
-            GrapheneApiGenerator.getAccountBalance(grapheneAccount.getId(), grapheneAccount.getAccountId(), context);
-            return grapheneAccount;
         }
-        return null;
     }
 
     @Override
-    public void loadAccountFromDB(CryptoNetAccount account, Context context) {
+    public void loadAccountFromDB(CryptoNetAccount account, final Context context) {
         if(account instanceof GrapheneAccount){
-            GrapheneAccount grapheneAccount = (GrapheneAccount) account;
+            final GrapheneAccount grapheneAccount = (GrapheneAccount) account;
-            CrystalDatabase db = CrystalDatabase.getAppDatabase(context);
+            final CrystalDatabase db = CrystalDatabase.getAppDatabase(context);
-            GrapheneAccountInfo info = db.grapheneAccountInfoDao().getByAccountId(account.getId());
+            final GrapheneAccountInfo info = db.grapheneAccountInfoDao().getByAccountId(account.getId());
             grapheneAccount.loadInfo(info);
             if(grapheneAccount.getAccountId() == null){
-                GrapheneAccount fetch = this.getAccountInfoByName(grapheneAccount.getName());
+                this.getAccountInfoByName(grapheneAccount.getName(), new ManagerRequest() {
-                if(fetch != null){
+                    @Override
-                    info.setAccountId(fetch.getAccountId());
+                    public void success(Object answer) {
-                    grapheneAccount.setAccountId(fetch.getAccountId());
+                        GrapheneAccount fetch = (GrapheneAccount) answer;
-                    db.grapheneAccountInfoDao().insertGrapheneAccountInfo(info);
+                        info.setAccountId(fetch.getAccountId());
-                }
+                        grapheneAccount.setAccountId(fetch.getAccountId());
+                        db.grapheneAccountInfoDao().insertGrapheneAccountInfo(info);
+                        subscribeBitsharesAccount(grapheneAccount.getId(),grapheneAccount.getAccountId(),context);
+                    }
+
+                    @Override
+                    public void fail() {
+                        //TODO account data retrieve failed
+                    }
+                });
             }else if(grapheneAccount.getName() == null){
-                GrapheneAccount fetch = this.getAccountInfoById(grapheneAccount.getAccountId());
+                this.getAccountInfoById(grapheneAccount.getAccountId(), new ManagerRequest() {
-                if(fetch != null) {
+                    @Override
-                    info.setName(fetch.getName());
+                    public void success(Object answer) {
-                    grapheneAccount.setName(fetch.getName());
+                        GrapheneAccount fetch = (GrapheneAccount) answer;
-                    db.grapheneAccountInfoDao().insertGrapheneAccountInfo(info);
+                        info.setName(fetch.getName());
-                }
+                        grapheneAccount.setName(fetch.getName());
-            }
+                        db.grapheneAccountInfoDao().insertGrapheneAccountInfo(info);
+                        subscribeBitsharesAccount(grapheneAccount.getId(),grapheneAccount.getAccountId(),context);
+                    }
 
-            if(grapheneAccount.getName() == null || grapheneAccount.getAccountId() == null) {
+                    @Override
-                //TODO grapaheneAccount null, error fetching
+                    public void fail() {
-                return;
+                        //TODO account data retrieve failed
+                    }
+                });
+            }else{
+                subscribeBitsharesAccount(grapheneAccount.getId(),grapheneAccount.getAccountId(),context);
             }
-
-            GrapheneApiGenerator.subscribeBitsharesAccount(grapheneAccount.getId(),grapheneAccount.getAccountId(),context);
-            BitsharesAccountManager.refreshAccountTransactions(account.getId(),context);
-            GrapheneApiGenerator.getAccountBalance(grapheneAccount.getId(),grapheneAccount.getAccountId(),context);
         }
     }
 
+    private void subscribeBitsharesAccount(long accountId, String accountBitsharesID, Context context){
+        GrapheneApiGenerator.subscribeBitsharesAccount(accountId,accountBitsharesID,context);
+        BitsharesAccountManager.refreshAccountTransactions(accountId,context);
+        GrapheneApiGenerator.getAccountBalance(accountId,accountBitsharesID,context);
+    }
+
     /**
      * Process the bitshares manager request
      * @param request The request Object
@@ -172,6 +226,7 @@ public class BitsharesAccountManager implements CryptoAccountManager, CryptoNetI
             this.validateCreateAccount((ValidateCreateBitsharesAccountRequest) request);
         }else{
             //TODO not implemented
+            System.out.println("Error request not implemented " + request.getClass().getName());
         }
     }
 
@@ -189,7 +244,6 @@ public class BitsharesAccountManager implements CryptoAccountManager, CryptoNetI
                         if(answer != null && answer instanceof AccountProperties) {
                             AccountProperties prop = (AccountProperties) answer;
                             //TODO change the way to compare keys
-
                             BrainKey bk = new BrainKey(importRequest.getMnemonic(), 0);
                             System.out.println(bk.getPublicAddress("BTS").toString());
                             for(PublicKey activeKey : prop.owner.getKeyAuthList()){
@@ -220,25 +274,34 @@ public class BitsharesAccountManager implements CryptoAccountManager, CryptoNetI
         GrapheneApiGenerator.getAccountIdByName(importRequest.getAccountName(),checkAccountName);
     }
 
-    private void validateCreateAccount(ValidateCreateBitsharesAccountRequest createRequest){
+    private void validateCreateAccount(final ValidateCreateBitsharesAccountRequest createRequest){
         // Generate seed or find key
         Context context = createRequest.getContext();
         AccountSeed seed = AccountSeed.getAccountSeed(SeedType.BIP39, context);
         CrystalDatabase db = CrystalDatabase.getAppDatabase(context);
         long idSeed = db.accountSeedDao().insertAccountSeed(seed);
+        assert seed != null;
         seed.setId(idSeed);
         seed.setName(createRequest.getAccountName());
         GrapheneAccount account = new GrapheneAccount();
         account.setName(createRequest.getAccountName());
         account.setSeedId(idSeed);
-        account.setAccountIndex(0);
+            account.setAccountIndex(0);
-        account.setCryptoNet(CryptoNet.BITSHARES);
+            account.setCryptoNet(CryptoNet.BITSHARES);
-        GrapheneAccount answer =(GrapheneAccount) this.createAccountFromSeed(account,context);
+            this.createAccountFromSeed(account, new ManagerRequest() {
-        if (answer != null){
+
-            createRequest.setAccountExists(false);
+                @Override
-            createRequest.setAccount(answer);;
+                public void success(Object answer) {
-        }
+                    createRequest.setAccountExists(false);
-        createRequest.setAccountExists(false);
+                    createRequest.setAccount((GrapheneAccount) answer);
+                }
+
+                @Override
+                public void fail() {
+                    createRequest.setAccountExists(true);
+                }
+            }, context);
+
 
     }
 
@@ -270,121 +333,127 @@ public class BitsharesAccountManager implements CryptoAccountManager, CryptoNetI
     /**
      * Broadcast a transaction request
      */
-    private void validateSendRequest(final ValidateBitsharesSendRequest sendRequest){
+    private void validateSendRequest(final ValidateBitsharesSendRequest sendRequest) {
         //TODO feeAsset
-        String idAsset = getAssetInfoByName(sendRequest.getAsset());
+        CrystalDatabase db = CrystalDatabase.getAppDatabase(sendRequest.getContext());
-        Asset feeAsset = new Asset(idAsset);
+        CryptoCurrency currency = db.cryptoCurrencyDao().getByNameAndCryptoNet(sendRequest.getAsset(), CryptoNet.BITSHARES.name());
-        UserAccount fromUserAccount =new UserAccount(sendRequest.getSourceAccount().getAccountId());
+        if (currency == null){
+            getAssetInfoByName(sendRequest.getAsset(), new ManagerRequest() {
+                @Override
+                public void success(Object answer) {
+                    validateSendRequest(sendRequest, ((BitsharesAsset) answer).getBitsharesId());
+                }
 
-        GrapheneAccount toUserGrapheneAccount = this.getAccountInfoByName(sendRequest.getToAccount());
+                @Override
-        //TODO bad user to user account
+                public void fail() {
-        UserAccount toUserAccount = new UserAccount(toUserGrapheneAccount.getAccountId());
+
-        TransferOperationBuilder builder = new TransferOperationBuilder()
+                }
-                .setSource(fromUserAccount)
+            });
-                .setDestination(toUserAccount)
+        }else{
-                .setTransferAmount(new AssetAmount(UnsignedLong.valueOf(sendRequest.getAmount()), new Asset(idAsset)))
+            BitsharesAssetInfo info = db.bitsharesAssetDao().getBitsharesAssetInfo(currency.getId());
-                .setFee(new AssetAmount(UnsignedLong.valueOf(0), feeAsset));
+            if (info == null || info.getBitsharesId() == null || info.getBitsharesId().isEmpty()){
-        if(sendRequest.getMemo() != null) {
+                getAssetInfoByName(sendRequest.getAsset(), new ManagerRequest() {
-            //builder.setMemo(new Memo(fromUserAccount,toUserAccount,0,sendRequest.getMemo().getBytes()));
+                    @Override
-            //TODO memo
+                    public void success(Object answer) {
+                        validateSendRequest(sendRequest, ((BitsharesAsset) answer).getBitsharesId());
+                    }
+
+                    @Override
+                    public void fail() {
+
+                    }
+                });
+            }else {
+                this.validateSendRequest(sendRequest, info.getBitsharesId());
+            }
         }
-        ArrayList<BaseOperation> operationList = new ArrayList<>();
+    }
-        operationList.add(builder.build());
 
-        ECKey privateKey = sendRequest.getSourceAccount().getActiveKey(sendRequest.getContext());
+    private void validateSendRequest(final ValidateBitsharesSendRequest sendRequest , final String idAsset){
+        final Asset feeAsset = new Asset(idAsset);
+        final UserAccount fromUserAccount =new UserAccount(sendRequest.getSourceAccount().getAccountId());
 
-        Transaction transaction = new Transaction(privateKey, null, operationList);
+        //TODO cached to accounts
-        transaction.setChainId(BITSHARES_TESTNET_CHAIN_ID);
+        this.getAccountInfoByName(sendRequest.getToAccount(), new ManagerRequest() {
 
-        ApiRequest transactionRequest = new ApiRequest(0, new ApiRequestListener() {
             @Override
-            public void success(Object answer, int idPetition) {
+            public void success(Object answer) {
-                sendRequest.setSend(true);
+                GrapheneAccount toUserGrapheneAccount = (GrapheneAccount) answer;
+                UserAccount toUserAccount = new UserAccount(toUserGrapheneAccount.getAccountId());
+                TransferOperationBuilder builder = new TransferOperationBuilder()
+                        .setSource(fromUserAccount)
+                        .setDestination(toUserAccount)
+                        .setTransferAmount(new AssetAmount(UnsignedLong.valueOf(sendRequest.getAmount()), new Asset(idAsset)))
+                        .setFee(new AssetAmount(UnsignedLong.valueOf(0), feeAsset));
+                if(sendRequest.getMemo() != null) {
+                    //builder.setMemo(new Memo(fromUserAccount,toUserAccount,0,sendRequest.getMemo().getBytes()));
+                    //TODO memo
+                    System.out.println("transaction has memo");
+                }
+                ArrayList<BaseOperation> operationList = new ArrayList<>();
+                operationList.add(builder.build());
+
+                ECKey privateKey = sendRequest.getSourceAccount().getActiveKey(sendRequest.getContext());
+
+                Transaction transaction = new Transaction(privateKey, null, operationList);
+                transaction.setChainId(CryptoNetManager.getChaindId(CryptoNet.BITSHARES));
+
+                ApiRequest transactionRequest = new ApiRequest(0, new ApiRequestListener() {
+                    @Override
+                    public void success(Object answer, int idPetition) {
+                        sendRequest.setSend(true);
+                    }
+
+                    @Override
+                    public void fail(int idPetition) {
+                        sendRequest.setSend(false);
+                    }
+                });
+
+                GrapheneApiGenerator.broadcastTransaction(transaction,feeAsset, transactionRequest);
             }
 
             @Override
-            public void fail(int idPetition) {
+            public void fail() {
-                sendRequest.setSend(false);
+                //TODO bad user to user account
             }
         });
 
-        GrapheneApiGenerator.broadcastTransaction(transaction,feeAsset, transactionRequest);
     }
 
     /**
      * Returns the account info from a graphene id
      * @param grapheneId The graphene id of the account
      */
-    private GrapheneAccount getAccountInfoById(String grapheneId){
+    private void getAccountInfoById(String grapheneId, ManagerRequest request){
-        final Object SYNC = new Object();
-        long timeout = 60000;
 
-        AccountIdOrNameListener listener = new AccountIdOrNameListener(SYNC);
+        AccountIdOrNameListener listener = new AccountIdOrNameListener(request);
 
-        ApiRequest request = new ApiRequest(0, listener);
+        ApiRequest accountRequest = new ApiRequest(0, listener);
-        GrapheneApiGenerator.getAccountById(grapheneId,request);
+        GrapheneApiGenerator.getAccountById(grapheneId,accountRequest);
-
-        long cTime = System.currentTimeMillis();
-
-        while(!listener.ready && (System.currentTimeMillis()-cTime) < timeout){
-            synchronized (SYNC){
-                try {
-                    SYNC.wait(100);
-                } catch (InterruptedException ignore) {}
-            }
-        }
-
-        return listener.account;
     }
 
     /**
      * Gets account info by its name
      * @param grapheneName The name of the account to retrieve
      */
-    private GrapheneAccount getAccountInfoByName(String grapheneName){
+    private void getAccountInfoByName(String grapheneName, ManagerRequest request){
-        final Object SYNC = new Object();
-        long timeout = 60000;
 
-        AccountIdOrNameListener listener = new AccountIdOrNameListener(SYNC);
+        AccountIdOrNameListener listener = new AccountIdOrNameListener(request);
 
-        ApiRequest request = new ApiRequest(0, listener);
+        ApiRequest accountRequest = new ApiRequest(0, listener);
-        GrapheneApiGenerator.getAccountByName(grapheneName,request);
+        GrapheneApiGenerator.getAccountByName(grapheneName,accountRequest);
 
-        long cTime = System.currentTimeMillis();
-
-        while(!listener.ready && (System.currentTimeMillis()-cTime) < timeout){
-            synchronized (SYNC){
-                try {
-                    SYNC.wait(100);
-                } catch (InterruptedException ignore) {}
-            }
-        }
-
-        return listener.account;
     }
 
     //TODO expand function to be more generic
-    private String getAssetInfoByName(String assetName){
+    private void getAssetInfoByName(String assetName, ManagerRequest request){
-        final Object SYNC = new Object();
-        long timeout = 60000;
 
-        AssetIdOrNameListener nameListener = new AssetIdOrNameListener(SYNC);
+        AssetIdOrNameListener nameListener = new AssetIdOrNameListener(request);
-        ApiRequest request = new ApiRequest(0, nameListener);
+        ApiRequest assetRequest = new ApiRequest(0, nameListener);
         ArrayList<String> assetNames = new ArrayList<>();
         assetNames.add(assetName);
-        GrapheneApiGenerator.getAssetByName(assetNames, request);
+        GrapheneApiGenerator.getAssetByName(assetNames, assetRequest);
-
-        long cTime = System.currentTimeMillis();
-
-        while(!nameListener.ready && (System.currentTimeMillis()-cTime) < timeout){
-            synchronized (SYNC){
-                try {
-                    SYNC.wait(100);
-                } catch (InterruptedException ignore) {}
-            }
-        }
-
-        return nameListener.asset.getBitsharesId();
 
     }
 
@@ -393,7 +462,7 @@ public class BitsharesAccountManager implements CryptoAccountManager, CryptoNetI
      * @param idAccount database id of the account
      * @param context The android context of this application
      */
-    public static void refreshAccountTransactions(long idAccount, Context context){
+    private static void refreshAccountTransactions(long idAccount, Context context){
         CrystalDatabase db = CrystalDatabase.getAppDatabase(context);
         List<CryptoCoinTransaction> transactions = db.transactionDao().getByIdAccount(idAccount);
         CryptoNetAccount account = db.cryptoNetAccountDao().getById(idAccount);
@@ -449,23 +518,22 @@ public class BitsharesAccountManager implements CryptoAccountManager, CryptoNetI
         }
 
         /**
-         * Handles the succes request of the transaction, if the amount of transaction is equal to the limit, ask for more transaction
+         * Handles the success request of the transaction, if the amount of transaction is equal to the limit, ask for more transaction
          * @param answer The answer, this object depends on the kind of request is made to the api
          * @param idPetition the id of the ApiRequest petition
          */
         @Override
         public void success(Object answer, int idPetition) {
             List<HistoricalTransfer> transfers = (List<HistoricalTransfer>) answer ;
-            for(HistoricalTransfer transfer : transfers) {
+            for(final HistoricalTransfer transfer : transfers) {
                 if (transfer.getOperation() != null){
-                    CryptoCoinTransaction transaction = new CryptoCoinTransaction();
+                    final CryptoCoinTransaction transaction = new CryptoCoinTransaction();
                     transaction.setAccountId(account.getId());
                     transaction.setAmount(transfer.getOperation().getAssetAmount().getAmount().longValue());
                     BitsharesAssetInfo info = db.bitsharesAssetDao().getBitsharesAssetInfoById(transfer.getOperation().getAssetAmount().getAsset().getObjectId());
 
                 if (info == null) {
                     //The cryptoCurrency is not in the database, queringfor its data
-                    final Object SYNC = new Object(); //Object to syn the answer
                     ApiRequest assetRequest = new ApiRequest(0, new ApiRequestListener() {
                         @Override
                         public void success(Object answer, int idPetition) {
@@ -476,39 +544,24 @@ public class BitsharesAccountManager implements CryptoAccountManager, CryptoNetI
                                 info.setCryptoCurrencyId(idCryptoCurrency);
                                 asset.setId((int)idCryptoCurrency);
                                 db.bitsharesAssetDao().insertBitsharesAssetInfo(info);
+                                saveTransaction(transaction,info,transfer);
                             }
-                            synchronized (SYNC){
+
-                                SYNC.notifyAll();
-                            }
                         }
 
                         @Override
                         public void fail(int idPetition) {
-                            synchronized (SYNC){
+                            //TODO Error
-                                SYNC.notifyAll();
-                            }
                         }
                     });
                     ArrayList<String> assets = new ArrayList<>();
                     assets.add(transfer.getOperation().getAssetAmount().getAsset().getObjectId());
                     GrapheneApiGenerator.getAssetById(assets,assetRequest);
 
-                    synchronized (SYNC){
+                }else{
-                        try {SYNC.wait(60000);} catch (InterruptedException ignore) {}
+                    saveTransaction(transaction,info,transfer);
-                    }
-                    info = db.bitsharesAssetDao().getBitsharesAssetInfoById(transfer.getOperation().getAssetAmount().getAsset().getObjectId());
                 }
-                if( info == null){
-                    //We couldn't retrieve the cryptocurrency
-                    return;
-                }
-                transaction.setIdCurrency((int)info.getCryptoCurrencyId());
-                transaction.setConfirmed(true); //graphene transaction are always confirmed
-                transaction.setFrom(transfer.getOperation().getFrom().getObjectId());
-                transaction.setInput(!transfer.getOperation().getFrom().getObjectId().equals(account.getAccountId()));
-                transaction.setTo(transfer.getOperation().getTo().getObjectId());
 
-                GrapheneApiGenerator.getBlockHeaderTime(transfer.getBlockNum(), new ApiRequest(0, new GetTransactionDate(transaction, db.transactionDao())));
             }
             }
             if(transfers.size()>= limit){
@@ -524,6 +577,16 @@ public class BitsharesAccountManager implements CryptoAccountManager, CryptoNetI
         public void fail(int idPetition) {
 
         }
+
+        private void saveTransaction(CryptoCoinTransaction transaction, BitsharesAssetInfo info, HistoricalTransfer transfer){
+            transaction.setIdCurrency((int)info.getCryptoCurrencyId());
+            transaction.setConfirmed(true); //graphene transaction are always confirmed
+            transaction.setFrom(transfer.getOperation().getFrom().getObjectId());
+            transaction.setInput(!transfer.getOperation().getFrom().getObjectId().equals(account.getAccountId()));
+            transaction.setTo(transfer.getOperation().getTo().getObjectId());
+
+            GrapheneApiGenerator.getBlockHeaderTime(transfer.getBlockNum(), new ApiRequest(0, new GetTransactionDate(transaction, db.transactionDao())));
+        }
     }
 
     /**
@@ -547,6 +610,7 @@ public class BitsharesAccountManager implements CryptoAccountManager, CryptoNetI
             GrapheneApiGenerator.getEquivalentValue(fromAsset.getBitsharesId(),toAsset.getBitsharesId(), getEquivalentRequest);
         }else{
             //TODO error
+            System.out.println("Equivalen Value error ");
         }
     }
 
@@ -554,13 +618,12 @@ public class BitsharesAccountManager implements CryptoAccountManager, CryptoNetI
      * Class to retrieve the account id or the account name, if one of those is missing
      */
     private class AccountIdOrNameListener implements ApiRequestListener{
-        final Object SYNC;
+        final ManagerRequest request;
-        boolean ready = false;
 
         GrapheneAccount account;
 
-        AccountIdOrNameListener(Object SYNC) {
+        AccountIdOrNameListener(ManagerRequest request) {
-            this.SYNC = SYNC;
+            this.request = request;
         }
 
         @Override
@@ -572,18 +635,12 @@ public class BitsharesAccountManager implements CryptoAccountManager, CryptoNetI
                 account.setName(props.name);
             }
 
-            synchronized (SYNC){
+            request.success(account);
-                ready = true;
-                SYNC.notifyAll();
-            }
         }
 
         @Override
         public void fail(int idPetition) {
-            synchronized (SYNC){
+            request.fail();
-                ready = true;
-                SYNC.notifyAll();
-            }
         }
     }
 
@@ -591,36 +648,27 @@ public class BitsharesAccountManager implements CryptoAccountManager, CryptoNetI
      * Class to retrieve the asset id or the asset name, if one of those is missing
      */
     private class AssetIdOrNameListener implements ApiRequestListener{
-        final Object SYNC;
+        final ManagerRequest request;
-        boolean ready = false;
 
         BitsharesAsset asset;
 
-        AssetIdOrNameListener(Object SYNC) {
+        AssetIdOrNameListener(ManagerRequest request) {
-            this.SYNC = SYNC;
+            this.request = request;
         }
 
         @Override
         public void success(Object answer, int idPetition) {
             if(answer instanceof ArrayList) {
-
                 if (((ArrayList) answer).get(0) instanceof BitsharesAsset) {
                     asset = (BitsharesAsset) ((ArrayList) answer).get(0);
+                    request.success(asset);
                 }
             }
-
-            synchronized (SYNC){
-                ready = true;
-                SYNC.notifyAll();
-            }
         }
 
         @Override
         public void fail(int idPetition) {
-            synchronized (SYNC){
+            //TODO fail asset retrieve
-                ready = true;
-                SYNC.notifyAll();
-            }
         }
     }
 
@@ -637,7 +685,7 @@ public class BitsharesAccountManager implements CryptoAccountManager, CryptoNetI
          */
         TransactionDao transactionDao;
 
-        public GetTransactionDate(CryptoCoinTransaction transaction, TransactionDao transactionDao) {
+        GetTransactionDate(CryptoCoinTransaction transaction, TransactionDao transactionDao) {
             this.transaction = transaction;
             this.transactionDao = transactionDao;
         }
@@ -645,11 +693,13 @@ public class BitsharesAccountManager implements CryptoAccountManager, CryptoNetI
         @Override
         public void success(Object answer, int idPetition) {
             if(answer instanceof BlockHeader){
-                SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
+                @SuppressLint("SimpleDateFormat") SimpleDateFormat dateFormat = new SimpleDateFormat(SIMPLE_DATE_FORMAT);
-                dateFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
+                dateFormat.setTimeZone(TimeZone.getTimeZone(DEFAULT_TIME_ZONE));
                 try {
                     transaction.setDate(dateFormat.parse(((BlockHeader) answer).timestamp));
-                    transactionDao.insertTransaction(transaction);
+                    if (transactionDao.getByTransaction(transaction.getDate(),transaction.getFrom(),transaction.getTo(),transaction.getAmount()) == null) {
+                        transactionDao.insertTransaction(transaction);
+                    }
                 } catch (ParseException e) {
                     e.printStackTrace();
                 }

app/src/main/java/cy/agorise/crystalwallet/manager/CryptoAccountManager.java

@@ -18,14 +18,14 @@ public interface CryptoAccountManager {
      * @param account The values to be created,
      * @returnThe CruptoNetAccount created, or null if it couldn't be created
      */
-    public CryptoNetAccount createAccountFromSeed(CryptoNetAccount account, Context context);
+    public void createAccountFromSeed(CryptoNetAccount account, ManagerRequest request, Context context);
 
     /**
      * Imports a CryptoCoin account from a seed
      * @param account A CryptoNetAccount with the parameters to be imported
      * @returnThe CruptoNetAccount imported
      */
-    public CryptoNetAccount importAccountFromSeed(CryptoNetAccount account, Context context);
+    public void importAccountFromSeed(CryptoNetAccount account, Context context);
 
     /**
      * Loads account data from the database

app/src/main/java/cy/agorise/crystalwallet/manager/ManagerRequest.java

@@ -0,0 +1,12 @@
+package cy.agorise.crystalwallet.manager;
+
+/**
+ * Created by henry on 28/1/2018.
+ */
+
+public interface ManagerRequest {
+
+    public void success(Object answer);
+
+    public void fail();
+}

app/src/main/java/cy/agorise/crystalwallet/models/Contact.java

@@ -10,8 +10,11 @@ import android.arch.persistence.room.PrimaryKey;
 import android.support.annotation.NonNull;
 import android.support.v7.recyclerview.extensions.DiffCallback;
 
+import java.util.ArrayList;
 import java.util.List;
 
+import cy.agorise.crystalwallet.enums.CryptoNet;
+
 /**
  * Represents a user contact
  *
@@ -19,7 +22,7 @@ import java.util.List;
  */
 
 @Entity(tableName="contact",
-        indices = {@Index("id"),@Index(value = {"name"}, unique=true)})
+        indices = {@Index("id"),@Index(value = {"name"}, unique=true),@Index("email")})
 public class Contact {
 
     /**
@@ -32,6 +35,9 @@ public class Contact {
     @ColumnInfo(name="name")
     private String mName;
 
+    @ColumnInfo(name="email")
+    private String mEmail;
+
     @ColumnInfo(name = "gravatar")
     private String mGravatar;
 
@@ -62,6 +68,14 @@ public class Contact {
         this.mGravatar = gravatar;
     }
 
+    public String getEmail() {
+        return this.mEmail;
+    }
+
+    public void setEmail(String email) {
+        this.mEmail = email;
+    }
+
     public int addressesCount(){
         return this.mAddresses.size();
     }
@@ -70,8 +84,30 @@ public class Contact {
         return this.mAddresses.get(index);
     }
 
+    public void clearAddresses(){
+        if (this.mAddresses != null) {
+            this.mAddresses.clear();
+        }
+    }
+
     public void addAddress(ContactAddress address){
+        if (this.mAddresses == null) {
+            this.mAddresses = new ArrayList<ContactAddress>();
+        }
         this.mAddresses.add(address);
+        address.setContactId(this.getId());
+    }
+
+    public ContactAddress getCryptoNetAddress(CryptoNet cryptoNet){
+        if (this.mAddresses != null) {
+            for (ContactAddress address : this.mAddresses) {
+                if (address.getCryptoNet() == cryptoNet) {
+                    return address;
+                }
+            }
+        }
+
+        return null;
     }
 
     public static final DiffCallback<Contact> DIFF_CALLBACK = new DiffCallback<Contact>() {

app/src/main/java/cy/agorise/crystalwallet/models/ContactAddress.java

@@ -4,9 +4,12 @@ package cy.agorise.crystalwallet.models;
 import android.arch.persistence.room.ColumnInfo;
 import android.arch.persistence.room.Entity;
 import android.arch.persistence.room.Index;
+import android.arch.persistence.room.PrimaryKey;
 import android.support.annotation.NonNull;
 import android.support.v7.recyclerview.extensions.DiffCallback;
 
+import cy.agorise.crystalwallet.enums.CryptoNet;
+
 /**
  * Represents a user contact address
  *
@@ -14,19 +17,37 @@ import android.support.v7.recyclerview.extensions.DiffCallback;
  */
 
 @Entity(tableName="contact_address",
-        primaryKeys = {"contact_id","crypto_currency_id"},
+        indices = {@Index(value = {"id"}, unique=true),@Index(value = {"contact_id","crypto_net"}, unique=true)})
-        indices = {@Index(value = {"contact_id","crypto_currency_id"}, unique=true)})
 public class ContactAddress {
 
+    /**
+     * The id on the database
+     */
+    @PrimaryKey(autoGenerate = true)
+    @ColumnInfo(name = "id")
+    private long mId;
+
     @ColumnInfo(name = "contact_id")
     private long mContactId;
 
-    @ColumnInfo(name = "crypto_currency_id")
+    /**
-    private long mCryptoCurrencyId;
+     * The crypto net of the address
+     */
+    @NonNull
+    @ColumnInfo(name = "crypto_net")
+    private CryptoNet mCryptoNet;
 
     @ColumnInfo(name="address")
     private String mAddress;
 
+    public long getId() {
+        return mId;
+    }
+
+    public void setId(long id) {
+        this.mId = id;
+    }
+
     public long getContactId() {
         return mContactId;
     }
@@ -35,12 +56,12 @@ public class ContactAddress {
         this.mContactId = contactId;
     }
 
-    public long getCryptoCurrencyId() {
+    public CryptoNet getCryptoNet() {
-        return mCryptoCurrencyId;
+        return mCryptoNet;
     }
 
-    public void setCryptoCurrencyId(long cryptoCurrencyId) {
+    public void setCryptoNet(CryptoNet cryptoNet) {
-        this.mCryptoCurrencyId = cryptoCurrencyId;
+        this.mCryptoNet = cryptoNet;
     }
 
     public String getAddress() {
@@ -56,7 +77,7 @@ public class ContactAddress {
         public boolean areItemsTheSame(
                 @NonNull ContactAddress oldContactAddress, @NonNull ContactAddress newContactAddress) {
             return (oldContactAddress.getContactId() == newContactAddress.getContactId())
-                    && (oldContactAddress.getCryptoCurrencyId() == newContactAddress.getCryptoCurrencyId());
+                    && (oldContactAddress.getCryptoNet() == newContactAddress.getCryptoNet());
         }
         @Override
         public boolean areContentsTheSame(
@@ -73,7 +94,7 @@ public class ContactAddress {
         ContactAddress that = (ContactAddress) o;
 
         if (mContactId != that.mContactId) return false;
-        if (mCryptoCurrencyId != that.mCryptoCurrencyId) return false;
+        if (mCryptoNet != that.mCryptoNet) return false;
         return mAddress.equals(that.mAddress);
     }
 }

app/src/main/java/cy/agorise/crystalwallet/models/GeneralSetting.java

@@ -17,6 +17,7 @@ public class GeneralSetting {
 
     public final static String SETTING_NAME_PREFERED_COUNTRY = "PREFERED_COUNTRY";
     public final static String SETTING_NAME_PREFERED_CURRENCY = "PREFERED_CURRENCY";
+    public final static String SETTING_PASSWORD = "PASSWORD";
 
     /**
      * The id on the database

app/src/main/java/cy/agorise/crystalwallet/network/BitsharesCryptoNetVerifier.java

@@ -0,0 +1,54 @@
+package cy.agorise.crystalwallet.network;
+
+import cy.agorise.crystalwallet.enums.CryptoNet;
+import cy.agorise.graphenej.interfaces.WitnessResponseListener;
+import cy.agorise.graphenej.models.BaseResponse;
+import cy.agorise.graphenej.models.WitnessResponse;
+
+/**
+ *
+ * Created by henry on 28/2/2018.
+ */
+
+public class BitsharesCryptoNetVerifier extends CryptoNetVerifier {
+
+
+    /**
+     * TODO We need to change this to a type of subCryptoNet
+     */
+    private final CryptoNet cryptoNet = CryptoNet.BITSHARES;
+    /**
+     * Todo info need to be on the SubCryptoNet
+     */
+    private final String CHAIN_ID = "9cf6f255a208100d2bb275a3c52f4b1589b7ec9c9bfc2cb2a5fe6411295106d8";//testnet
+    //private final String CHAIN_ID = "4018d7844c78f6a6c41c6a552b898022310fc5dec06da467ee7905a8dad512c8";//mainnet
+
+    @Override
+    public void checkURL(final String url) {
+        final long startTime = System.currentTimeMillis();
+        WebSocketThread thread = new WebSocketThread(new GetChainId(new WitnessResponseListener() {
+            @Override
+            public void onSuccess(WitnessResponse response) {
+                if(response.result instanceof String) {
+                    if(response.result.equals(CHAIN_ID)) {
+                        CryptoNetManager.verifiedCryptoNetURL(cryptoNet, url, System.currentTimeMillis() - startTime);
+                    }else{
+                        System.out.println(" BitsharesCryptoNetVerifier Error we are not in the net current chain id " + response.result + " excepted " + CHAIN_ID);
+                        //TODO handle error bad chain
+                    }
+                }
+            }
+
+            @Override
+            public void onError(BaseResponse.Error error) {
+                //TODO handle error
+            }
+        }),url);
+        thread.start();
+    }
+
+    @Override
+    public String getChainId() {
+        return CHAIN_ID;
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/network/CryptoNetManager.java

@@ -0,0 +1,149 @@
+package cy.agorise.crystalwallet.network;
+
+import android.support.annotation.NonNull;
+import android.util.Log;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.HashSet;
+
+import cy.agorise.crystalwallet.enums.CryptoNet;
+
+/**
+ * Created by henry on 6/3/2018.
+ */
+
+public abstract class CryptoNetManager {
+    /**
+     * This map contains the list of the urls to be tested
+     */
+    private static HashMap<CryptoNet,HashSet<String>> CryptoNetURLs = new  HashMap<>();
+
+    /**
+     * This map contains the list of urls been tested and ordered by the fastests
+     */
+    private static HashMap<CryptoNet,ArrayList<TestedURL>> TestedURLs = new  HashMap<>();
+
+    public static String getURL(CryptoNet crypto){
+        return CryptoNetManager.getURL(crypto,0);
+    }
+
+
+    public static String getURL(CryptoNet crypto, int index){
+        if(TestedURLs.containsKey(crypto) && TestedURLs.get(crypto).size()>index){
+            return TestedURLs.get(crypto).get(index).getUrl();
+        }
+
+        if(CryptoNetURLs.containsKey(crypto) && !CryptoNetURLs.get(crypto).isEmpty()){
+            return CryptoNetURLs.get(crypto).iterator().next();
+        }
+        return null;
+    }
+
+    public static int getURLSize(CryptoNet crypto){
+        if(TestedURLs.containsKey(crypto)){
+            return TestedURLs.get(crypto).size();
+        }
+        return 0;
+    }
+
+    public static void addCryptoNetURL(CryptoNet crypto, String url){
+        if(!CryptoNetURLs.containsKey(crypto)){
+            CryptoNetURLs.put(crypto,new HashSet<String>());
+        }
+
+        CryptoNetURLs.get(crypto).add(url);
+        CryptoNetVerifier verifier = CryptoNetVerifier.getNetworkVerify(crypto);
+        if(verifier != null) {
+            verifier.checkURL(url);
+        }
+    }
+
+    public static void addCryptoNetURL(CryptoNet crypto, String[] urls){
+        if(!CryptoNetURLs.containsKey(crypto)){
+            CryptoNetURLs.put(crypto,new HashSet<String>());
+        }
+        CryptoNetVerifier verifier = CryptoNetVerifier.getNetworkVerify(crypto);
+
+        for(String url : urls) {
+            CryptoNetURLs.get(crypto).add(url);
+            if(verifier != null) {
+                verifier.checkURL(url);
+            }
+        }
+    }
+
+    public static void removeCryptoNetURL(CryptoNet crypto, String url){
+        if(CryptoNetURLs.containsKey(crypto)){
+            CryptoNetURLs.get(crypto).remove(url);
+        }
+    }
+
+    public static void verifiedCryptoNetURL(CryptoNet crypto, String url, long time){
+        if(CryptoNetURLs.containsKey(crypto) && CryptoNetURLs.get(crypto).contains(url)){
+            if(!TestedURLs.containsKey(crypto)){
+                TestedURLs.put(crypto,new ArrayList<TestedURL>());
+            }
+            TestedURL testedUrl = new TestedURL(time,url);
+            if(!TestedURLs.get(crypto).contains(testedUrl)){
+                TestedURLs.get(crypto).add(testedUrl);
+                Collections.sort(TestedURLs.get(crypto));
+            }
+        }else{
+            //TODO add error handler
+        }
+    }
+
+    public static String getChaindId(CryptoNet crypto){
+        CryptoNetVerifier verifier = CryptoNetVerifier.getNetworkVerify(crypto);
+        if(verifier != null) {
+            return verifier.getChainId();
+        }
+        return null;
+    }
+
+    private static class TestedURL implements Comparable{
+        private long time;
+        private String url;
+
+        public TestedURL(long time, String url) {
+            this.time = time;
+            this.url = url;
+        }
+
+        public long getTime() {
+            return time;
+        }
+
+        String getUrl() {
+            return url;
+        }
+
+        @Override
+        public boolean equals(Object o) {
+            if (this == o) return true;
+            if (!(o instanceof TestedURL)) return false;
+
+            TestedURL testedURL = (TestedURL) o;
+
+            return getUrl().equals(testedURL.getUrl());
+        }
+
+        @Override
+        public int hashCode() {
+            return getUrl().hashCode();
+        }
+
+        @Override
+        public int compareTo(@NonNull Object o) {
+            if (this == o) return 0;
+            if (!(o instanceof TestedURL)) return 0;
+
+            TestedURL testedURL = (TestedURL) o;
+            return (int) (this.getTime() - testedURL.getTime());
+        }
+    }
+
+}

app/src/main/java/cy/agorise/crystalwallet/network/CryptoNetVerifier.java

@@ -0,0 +1,25 @@
+package cy.agorise.crystalwallet.network;
+
+import cy.agorise.crystalwallet.enums.CryptoNet;
+
+/**
+ * This is used to check if the connection is stable and fast.
+ *
+ * Also verifies if the connection with the server is valid.
+ *
+ * Created by henry on 28/2/2018.
+ */
+
+public abstract class CryptoNetVerifier {
+
+    static CryptoNetVerifier getNetworkVerify(CryptoNet cryptoNet){
+        if(cryptoNet.getLabel().equals(CryptoNet.BITSHARES.getLabel())){
+            return new BitsharesCryptoNetVerifier();
+        }
+        return null;
+    }
+
+    public abstract void checkURL(final String url);
+
+    public abstract String getChainId();
+}

app/src/main/java/cy/agorise/crystalwallet/network/GetChainId.java

@@ -0,0 +1,61 @@
+package cy.agorise.crystalwallet.network;
+
+import com.google.gson.GsonBuilder;
+import com.google.gson.reflect.TypeToken;
+import com.neovisionaries.ws.client.WebSocket;
+import com.neovisionaries.ws.client.WebSocketFrame;
+
+import java.io.Serializable;
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import cy.agorise.graphenej.RPC;
+import cy.agorise.graphenej.api.BaseGrapheneHandler;
+import cy.agorise.graphenej.interfaces.WitnessResponseListener;
+import cy.agorise.graphenej.models.ApiCall;
+import cy.agorise.graphenej.models.WitnessResponse;
+
+/**
+ * Created by henry on 28/2/2018.
+ */
+
+public class GetChainId extends BaseGrapheneHandler {
+
+    private final WitnessResponseListener mListener;
+
+    public GetChainId(WitnessResponseListener listener) {
+        super(listener);
+        this.mListener = listener;
+    }
+
+    @Override
+    public void onConnected(WebSocket websocket, Map<String, List<String>> headers) throws Exception {
+        ApiCall getAccountByName = new ApiCall(0, "get_chain_id", new ArrayList<Serializable>(), RPC.VERSION, 1);
+        websocket.sendText(getAccountByName.toJsonString());
+    }
+
+    @Override
+    public void onTextFrame(WebSocket websocket, WebSocketFrame frame) throws Exception {
+        System.out.println("<<< "+frame.getPayloadText());
+        String response = frame.getPayloadText();
+
+        Type GetChainIdResponse = new TypeToken<WitnessResponse<String>>(){}.getType();
+        GsonBuilder builder = new GsonBuilder();
+        WitnessResponse<List<String>> witnessResponse = builder.create().fromJson(response, GetChainIdResponse);
+        if(witnessResponse.error != null){
+            this.mListener.onError(witnessResponse.error);
+        }else{
+            this.mListener.onSuccess(witnessResponse);
+        }
+
+            websocket.disconnect();
+    }
+
+    @Override
+    public void onFrameSent(WebSocket websocket, WebSocketFrame frame) throws Exception {
+        if(frame.isTextFrame())
+            System.out.println(">>> "+frame.getPayloadText());
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/service/CrystalWalletService.java

@@ -109,8 +109,7 @@ public class CrystalWalletService extends LifecycleService {
 
                                     if (LoadEquivalencesThread != null) {
                                         LoadEquivalencesThread.stopLoadingEquivalences();
-                                    }
+                                    };
-                                    ;
                                     LoadEquivalencesThread = new EquivalencesThread(service, generalSetting.getValue(), bitsharesAssets);
                                     LoadEquivalencesThread.start();
                                 }
@@ -184,14 +183,14 @@ public class CrystalWalletService extends LifecycleService {
         }
 
         //if (LoadEquivalencesThread == null) {
-        //    LoadEquivalencesThread = new Thread() {
+        //    LoadEquivalencesThread = new EquivalencesThread() {
         //        @Override
         //        public void run() {
                     loadEquivalentsValues();
         //        }
         //    };
         //    LoadEquivalencesThread.start();
-        //}
+       // }
 
         // If we get killed, after returning from here, restart
         return START_STICKY;

app/src/main/java/cy/agorise/crystalwallet/util/CircleTransformation.java

@@ -0,0 +1,47 @@
+package cy.agorise.crystalwallet.util;
+
+/**
+ * Created by Henry Varona on 25/2/2018.
+ */
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapShader;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+
+import com.squareup.picasso.Transformation;
+
+public class CircleTransformation implements Transformation {
+    @Override
+    public Bitmap transform(Bitmap source) {
+        int size = Math.min(source.getWidth(), source.getHeight());
+
+        int x = (source.getWidth() - size) / 2;
+        int y = (source.getHeight() - size) / 2;
+
+        Bitmap squaredBitmap = Bitmap.createBitmap(source, x, y, size, size);
+        if (squaredBitmap != source) {
+            source.recycle();
+        }
+
+        Bitmap bitmap = Bitmap.createBitmap(size, size, source.getConfig());
+
+        Canvas canvas = new Canvas(bitmap);
+        Paint paint = new Paint();
+        BitmapShader shader = new BitmapShader(squaredBitmap,
+                BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP);
+        paint.setShader(shader);
+        paint.setAntiAlias(true);
+
+        float r = size / 2f;
+        canvas.drawCircle(r, r, r, paint);
+
+        squaredBitmap.recycle();
+        return bitmap;
+    }
+
+    @Override
+    public String key() {
+        return "CircleTransformation";
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/util/MD5Hash.java

@@ -0,0 +1,22 @@
+package cy.agorise.crystalwallet.util;
+
+/**
+ * Created by Henry Varona on 24/2/2018.
+ */
+
+public class MD5Hash {
+
+    static public String hash(String md5) {
+        try {
+            java.security.MessageDigest md = java.security.MessageDigest.getInstance("MD5");
+            byte[] array = md.digest(md5.getBytes());
+            StringBuffer sb = new StringBuffer();
+            for (int i = 0; i < array.length; ++i) {
+                sb.append(Integer.toHexString((array[i] & 0xFF) | 0x100).substring(1,3));
+            }
+            return sb.toString();
+        } catch (java.security.NoSuchAlgorithmException e) {
+        }
+        return null;
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/util/PasswordManager.java

@@ -0,0 +1,22 @@
+package cy.agorise.crystalwallet.util;
+
+/**
+ * Created by Henry Varona on 29/1/2018.
+ */
+
+public class PasswordManager {
+
+    //TODO implement password checking using the encryption implemented in encriptPassword
+    public static boolean checkPassword(String encriptedPassword, String passwordToCheck){
+        if (encriptedPassword.equals(passwordToCheck)){
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    //TODO implement password encryption
+    public static String encriptPassword(String password){
+        return password;
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/viewmodels/ContactListViewModel.java

@@ -6,6 +6,7 @@ import android.arch.lifecycle.LiveData;
 import android.arch.paging.PagedList;
 
 import cy.agorise.crystalwallet.dao.CrystalDatabase;
+import cy.agorise.crystalwallet.enums.CryptoNet;
 import cy.agorise.crystalwallet.models.Contact;
 import cy.agorise.crystalwallet.models.CryptoCoinTransaction;
 
@@ -30,7 +31,31 @@ public class ContactListViewModel extends AndroidViewModel {
         );
     }
 
+    public void init(){
+        contactList = this.db.contactDao().contactsByName().create(0,
+                new PagedList.Config.Builder()
+                        .setEnablePlaceholders(true)
+                        .setPageSize(10)
+                        .setPrefetchDistance(10)
+                        .build()
+        );
+    }
+
+    public void init(CryptoNet cryptoNet){
+        contactList = this.db.contactDao().contactsByNameAndCryptoNet(cryptoNet.name()).create(0,
+                new PagedList.Config.Builder()
+                        .setEnablePlaceholders(true)
+                        .setPageSize(10)
+                        .setPrefetchDistance(10)
+                        .build()
+        );
+    }
+
     public LiveData<PagedList<Contact>> getContactList(){
         return this.contactList;
     }
+
+    public  boolean contactExists(String name){
+        return this.db.contactDao().existsByName(name);
+    }
 }

app/src/main/java/cy/agorise/crystalwallet/viewmodels/ContactViewModel.java

@@ -0,0 +1,70 @@
+package cy.agorise.crystalwallet.viewmodels;
+
+import android.app.Application;
+import android.arch.lifecycle.AndroidViewModel;
+import android.arch.lifecycle.LiveData;
+import android.arch.paging.PagedList;
+
+import java.util.List;
+
+import cy.agorise.crystalwallet.dao.CrystalDatabase;
+import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.models.ContactAddress;
+
+/**
+ * Created by Henry Varona on 2/4/2018.
+ */
+
+public class ContactViewModel extends AndroidViewModel {
+
+    private CrystalDatabase db;
+    private LiveData<Contact> contact;
+    private LiveData<List<ContactAddress>> contactAddresses;
+
+    public ContactViewModel(Application application) {
+        super(application);
+        this.db = CrystalDatabase.getAppDatabase(application.getApplicationContext());
+    }
+
+    public void init(long contactId){
+        this.contact = this.db.contactDao().getById(contactId);
+        this.contactAddresses = this.db.contactDao().getContactAddresses(contactId);
+    }
+
+    public LiveData<Contact> getContact(){
+        return this.contact;
+    }
+
+    public LiveData<List<ContactAddress>> getContactAddresses(){
+        return this.contactAddresses;
+    }
+
+    public boolean modifyContact(Contact contact){
+        this.db.contactDao().update(contact);
+
+        for (int i=0;i<contact.addressesCount();i++){
+            ContactAddress nextAddress = contact.getAddress(i);
+            if (nextAddress.getId() > 0){
+                this.db.contactDao().updateAddresses(nextAddress);
+            } else {
+                nextAddress.setContactId(contact.getId());
+                this.db.contactDao().addAddresses(nextAddress);
+            }
+        }
+
+        return true;
+    }
+
+    public boolean addContact(Contact contact){
+        long newContactId = this.db.contactDao().add(contact)[0];
+        boolean contactWasAdded = newContactId >= 0;
+
+        for (int i=0;i<contact.addressesCount();i++){
+            ContactAddress nextAddress = contact.getAddress(i);
+            nextAddress.setContactId(newContactId);
+            this.db.contactDao().addAddresses(nextAddress);
+        }
+
+        return contactWasAdded;
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/viewmodels/CryptoNetAccountViewModel.java

@@ -24,7 +24,7 @@ public class CryptoNetAccountViewModel extends AndroidViewModel {
         this.db = CrystalDatabase.getAppDatabase(application.getApplicationContext());
     }
 
-    public void loadCryptoNetAccount(int accountId){
+    public void loadCryptoNetAccount(long accountId){
         this.cryptoNetAccount = this.db.cryptoNetAccountDao().getByIdLiveData(accountId);
     }
 
@@ -36,5 +36,4 @@ public class CryptoNetAccountViewModel extends AndroidViewModel {
     public LiveData<CryptoNetAccount> getCryptoNetAccount(){
         return this.cryptoNetAccount;
     }
-
 }

app/src/main/java/cy/agorise/crystalwallet/viewmodels/validators/CreateContactValidator.java

@@ -0,0 +1,23 @@
+package cy.agorise.crystalwallet.viewmodels.validators;
+
+import android.content.Context;
+import android.widget.EditText;
+
+import cy.agorise.crystalwallet.viewmodels.validators.validationfields.BitsharesAccountNameDoesntExistsValidationField;
+import cy.agorise.crystalwallet.viewmodels.validators.validationfields.ContactNameValidationField;
+import cy.agorise.crystalwallet.viewmodels.validators.validationfields.EmailValidationField;
+import cy.agorise.crystalwallet.viewmodels.validators.validationfields.PinConfirmationValidationField;
+import cy.agorise.crystalwallet.viewmodels.validators.validationfields.PinValidationField;
+
+/**
+ * Created by Henry Varona on 2/2/2018.
+ */
+
+public class CreateContactValidator extends UIValidator {
+
+    public CreateContactValidator(Context context, EditText nameEdit, EditText emailEdit){
+        super(context);
+        this.addField(new ContactNameValidationField(nameEdit));
+        this.addField(new EmailValidationField(emailEdit));
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/viewmodels/validators/ModifyContactValidator.java

@@ -0,0 +1,21 @@
+package cy.agorise.crystalwallet.viewmodels.validators;
+
+import android.content.Context;
+import android.widget.EditText;
+
+import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.viewmodels.validators.validationfields.ContactNameValidationField;
+import cy.agorise.crystalwallet.viewmodels.validators.validationfields.EmailValidationField;
+
+/**
+ * Created by Henry Varona on 2/11/2018.
+ */
+
+public class ModifyContactValidator extends UIValidator {
+
+    public ModifyContactValidator(Context context, Contact contact, EditText nameEdit, EditText emailEdit){
+        super(context);
+        this.addField(new ContactNameValidationField(nameEdit, contact));
+        this.addField(new EmailValidationField(emailEdit));
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/viewmodels/validators/PinSecurityValidator.java

@@ -0,0 +1,23 @@
+package cy.agorise.crystalwallet.viewmodels.validators;
+
+import android.content.Context;
+import android.widget.EditText;
+
+import cy.agorise.crystalwallet.viewmodels.validators.validationfields.BitsharesAccountNameDoesntExistsValidationField;
+import cy.agorise.crystalwallet.viewmodels.validators.validationfields.CurrentPinValidationField;
+import cy.agorise.crystalwallet.viewmodels.validators.validationfields.PinConfirmationValidationField;
+import cy.agorise.crystalwallet.viewmodels.validators.validationfields.PinValidationField;
+
+/**
+ * Created by Henry Varona on 1/28/2018.
+ */
+
+public class PinSecurityValidator extends UIValidator {
+
+    public PinSecurityValidator(Context context, EditText currentPinEdit, EditText newPinEdit, EditText newPinConfirmationEdit){
+        super(context);
+        this.addField(new CurrentPinValidationField(currentPinEdit));
+        this.addField(new PinValidationField(newPinEdit));
+        this.addField(new PinConfirmationValidationField(newPinEdit,newPinConfirmationEdit));
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/viewmodels/validators/validationfields/ContactNameValidationField.java

@@ -0,0 +1,76 @@
+package cy.agorise.crystalwallet.viewmodels.validators.validationfields;
+
+import android.arch.lifecycle.LifecycleOwner;
+import android.arch.lifecycle.LiveData;
+import android.arch.lifecycle.Observer;
+import android.arch.lifecycle.ViewModelProviders;
+import android.support.annotation.Nullable;
+import android.support.v4.app.FragmentActivity;
+import android.widget.EditText;
+import android.widget.Spinner;
+
+import java.util.List;
+
+import cy.agorise.crystalwallet.R;
+import cy.agorise.crystalwallet.cryptonetinforequests.CryptoNetInfoRequestListener;
+import cy.agorise.crystalwallet.cryptonetinforequests.CryptoNetInfoRequests;
+import cy.agorise.crystalwallet.cryptonetinforequests.ValidateExistBitsharesAccountRequest;
+import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.models.GeneralSetting;
+import cy.agorise.crystalwallet.viewmodels.ContactListViewModel;
+import cy.agorise.crystalwallet.viewmodels.GeneralSettingListViewModel;
+
+/**
+ * Created by Henry Varona on 2/03/2017.
+ */
+
+public class ContactNameValidationField extends ValidationField {
+
+    private EditText nameField;
+    private Contact contact;
+
+    public ContactNameValidationField(EditText nameField){
+        super(nameField);
+        this.nameField = nameField;
+        this.contact = null;
+    }
+
+    public ContactNameValidationField(EditText nameField, Contact contact){
+        super(nameField);
+        this.nameField = nameField;
+        this.contact = contact;
+    }
+
+    public void validate(){
+        final String newValue = this.nameField.getText().toString();
+
+        if (this.contact != null){
+            if (this.contact.getName().equals(newValue)){
+                this.setLastValue(newValue);
+                this.startValidating();
+                this.setValidForValue(newValue, true);
+                return;
+            }
+        }
+
+        if (!newValue.equals("")) {
+            if (!newValue.equals(this.getLastValue())) {
+                this.setLastValue(newValue);
+                this.startValidating();
+
+                ContactListViewModel contactListViewModel = ViewModelProviders.of((FragmentActivity) view.getContext()).get(ContactListViewModel.class);
+                if (contactListViewModel.contactExists(newValue)) {
+                    this.setMessageForValue(newValue, "This name is already used by another contact.");
+                    this.setValidForValue(newValue, false);
+                } else {
+                    this.setValidForValue(newValue, true);
+                }
+            }
+        } else {
+            this.setLastValue("");
+            this.startValidating();
+            this.setMessageForValue("", "");
+            this.setValidForValue("", false);
+        }
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/viewmodels/validators/validationfields/CurrentPinValidationField.java

@@ -0,0 +1,69 @@
+package cy.agorise.crystalwallet.viewmodels.validators.validationfields;
+
+import android.arch.lifecycle.LifecycleOwner;
+import android.arch.lifecycle.LiveData;
+import android.arch.lifecycle.Observer;
+import android.arch.lifecycle.ViewModelProviders;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentActivity;
+import android.widget.EditText;
+
+import java.util.List;
+
+import cy.agorise.crystalwallet.models.GeneralSetting;
+import cy.agorise.crystalwallet.util.PasswordManager;
+import cy.agorise.crystalwallet.viewmodels.GeneralSettingListViewModel;
+
+/**
+ * Created by Henry Varona on 1/28/2018.
+ */
+
+public class CurrentPinValidationField extends ValidationField {
+
+    private EditText currentPinField;
+    String currentPassword = "";
+
+    public CurrentPinValidationField(EditText currentPinField){
+        super(currentPinField);
+        this.currentPinField = currentPinField;
+        GeneralSettingListViewModel generalSettingListViewModel = ViewModelProviders.of((FragmentActivity)view.getContext()).get(GeneralSettingListViewModel.class);
+        LiveData<List<GeneralSetting>> generalSettingsLiveData = generalSettingListViewModel.getGeneralSettingList();
+        generalSettingsLiveData.observe((LifecycleOwner) this.view.getContext(), new Observer<List<GeneralSetting>>() {
+            @Override
+            public void onChanged(@Nullable List<GeneralSetting> generalSettings) {
+                for (GeneralSetting generalSetting:generalSettings) {
+                    if (generalSetting.getName().equals(GeneralSetting.SETTING_PASSWORD)){
+                        currentPassword = generalSetting.getValue();
+                        break;
+                    }
+                }
+            }
+        });
+    }
+
+    public void validate(){
+        final String newValue = currentPinField.getText().toString();
+
+        if (this.currentPassword.equals("")) {
+            this.setLastValue("");
+            this.startValidating();
+            setValidForValue("",true);
+        } else if (!newValue.equals(this.getLastValue())) {
+            this.setLastValue(newValue);
+            this.startValidating();
+            if (newValue.equals("")){
+                setMessageForValue(lastValue, "");
+                setValidForValue(lastValue, false);
+            } else {
+
+                if (PasswordManager.checkPassword(this.currentPassword, newValue)) {
+                    setValidForValue(lastValue, true);
+                } else {
+                    setMessageForValue(lastValue, "Password is invalid.");
+                    setValidForValue(lastValue, false);
+                }
+            }
+        }
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/viewmodels/validators/validationfields/EmailValidationField.java

@@ -0,0 +1,49 @@
+package cy.agorise.crystalwallet.viewmodels.validators.validationfields;
+
+import android.widget.EditText;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import cy.agorise.crystalwallet.R;
+
+/**
+ * Created by Henry Varona on 2/21/2017.
+ */
+
+public class EmailValidationField extends ValidationField {
+
+    private EditText emailField;
+
+    public EmailValidationField(EditText emailField){
+        super(emailField);
+        this.emailField = emailField;
+    }
+
+    public void validate(){
+        String newValue = emailField.getText().toString();
+        if (!newValue.equals("")) {
+
+            if (!newValue.equals(this.getLastValue())) {
+                this.setLastValue(newValue);
+                this.startValidating();
+
+                String expression = "^[\\w\\.-]+@([\\w\\-]+\\.)+[A-Z]{2,4}$";
+                Pattern pattern = Pattern.compile(expression, Pattern.CASE_INSENSITIVE);
+                Matcher matcher = pattern.matcher(newValue);
+
+                if (!matcher.matches()) {
+                    this.setMessageForValue(newValue, "The email is not valid");
+                    this.setValidForValue(newValue, false);
+                } else {
+                    this.setValidForValue(newValue, true);
+                }
+            }
+        } else {
+            this.setLastValue("");
+            this.startValidating();
+            this.setMessageForValue("", "");
+            this.setValidForValue("", false);
+        }
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/viewmodels/validators/validationfields/PinConfirmationValidationField.java

@@ -22,18 +22,24 @@ public class PinConfirmationValidationField extends ValidationField {
     public void validate(){
         String newConfirmationValue = pinConfirmationField.getText().toString();
         String newValue = pinField.getText().toString();
-        String mixedValue = newValue+"_"+newConfirmationValue;
+        String mixedValue = newValue + "_" + newConfirmationValue;
-        if (mixedValue != this.getLastValue()) {
-            this.setLastValue(mixedValue);
-            this.startValidating();
 
-
+        if (!newConfirmationValue.equals("")) {
-            if (!newConfirmationValue.equals(newValue)){
+            if (!mixedValue.equals(this.getLastValue())) {
-                this.setMessageForValue(mixedValue,this.validator.getContext().getResources().getString(R.string.mismatch_pin));
+                this.setLastValue(mixedValue);
-                this.setValidForValue(mixedValue,false);
+                this.startValidating();
-            } else {
+                if (!newConfirmationValue.equals(newValue)) {
-                this.setValidForValue(mixedValue, true);
+                    this.setMessageForValue(mixedValue, this.validator.getContext().getResources().getString(R.string.mismatch_pin));
+                    this.setValidForValue(mixedValue, false);
+                } else {
+                    this.setValidForValue(mixedValue, true);
+                }
             }
+        } else {
+            this.setLastValue("");
+            this.startValidating();
+            this.setMessageForValue("", "");
+            this.setValidForValue("", false);
         }
     }
 }

app/src/main/java/cy/agorise/crystalwallet/viewmodels/validators/validationfields/PinValidationField.java

@@ -20,16 +20,23 @@ public class PinValidationField extends ValidationField {
 
     public void validate(){
         String newValue = pinField.getText().toString();
-        if (newValue != this.getLastValue()) {
+        if (!newValue.equals("")) {
-            this.setLastValue(newValue);
+            if (!newValue.equals(this.getLastValue())) {
-            this.startValidating();
+                this.setLastValue(newValue);
+                this.startValidating();
 
-            if (newValue.length() < 6) {
+                if (newValue.length() < 6) {
-                this.setMessageForValue(newValue, this.validator.getContext().getResources().getString(R.string.pin_number_warning));
+                    this.setMessageForValue(newValue, this.validator.getContext().getResources().getString(R.string.pin_number_warning));
-                this.setValidForValue(newValue, false);
+                    this.setValidForValue(newValue, false);
-            } else {
+                } else {
-                this.setValidForValue(newValue, true);
+                    this.setValidForValue(newValue, true);
+                }
             }
+        } else {
+            this.setLastValue("");
+            this.startValidating();
+            this.setMessageForValue("", "");
+            this.setValidForValue("", false);
         }
     }
 }

app/src/main/java/cy/agorise/crystalwallet/views/ContactAddressListAdapter.java

@@ -0,0 +1,41 @@
+package cy.agorise.crystalwallet.views;
+
+
+import android.support.v7.recyclerview.extensions.ListAdapter;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import cy.agorise.crystalwallet.R;
+import cy.agorise.crystalwallet.models.ContactAddress;
+
+/**
+ * Created by Henry Varona on 2/5/2018.
+ *
+ * An adapter to show the elements of a list of contacts addresses
+ */
+
+
+public class ContactAddressListAdapter extends ListAdapter<ContactAddress, ContactAddressViewHolder> {
+
+    public ContactAddressListAdapter() {
+        super(ContactAddress.DIFF_CALLBACK);
+    }
+
+    @Override
+    public ContactAddressViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.contact_address_list_item,parent,false);
+
+        return new ContactAddressViewHolder(v);
+    }
+
+    @Override
+    public void onBindViewHolder(ContactAddressViewHolder holder, int position) {
+        ContactAddress contactAddress = getItem(position);
+        if (contactAddress != null) {
+            holder.bindTo(contactAddress);
+        } else {
+            holder.clear();
+        }
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/views/ContactAddressViewHolder.java

@@ -0,0 +1,111 @@
+package cy.agorise.crystalwallet.views;
+
+import android.content.Context;
+import android.support.v7.widget.RecyclerView;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.Spinner;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import cy.agorise.crystalwallet.R;
+import cy.agorise.crystalwallet.enums.CryptoNet;
+import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.models.ContactAddress;
+
+/**
+ * Created by Henry Varona on 2/5/2017.
+ *
+ * Represents an element view from the Contact Address List
+ */
+
+public class ContactAddressViewHolder extends RecyclerView.ViewHolder {
+    private Spinner spCryptoNet;
+    private EditText etAddress;
+    private Context context;
+    private CryptoNet[] cryptoNetArray;
+    private ArrayAdapter<CryptoNet> cryptoNetSpinnerAdapter;
+
+    public ContactAddressViewHolder(View itemView) {
+        super(itemView);
+        //TODO: use ButterKnife to load this
+        spCryptoNet = (Spinner) itemView.findViewById(R.id.spCryptoNet);
+        etAddress = (EditText) itemView.findViewById(R.id.etAddress);
+        this.context = itemView.getContext();
+
+
+        //load spinners values
+        cryptoNetArray = CryptoNet.values();
+        cryptoNetSpinnerAdapter = new ArrayAdapter<CryptoNet>(
+                this.context,
+                android.R.layout.simple_list_item_1,
+                cryptoNetArray
+        );
+        spCryptoNet.setAdapter(cryptoNetSpinnerAdapter);
+    }
+
+    /*
+     * Clears the information in this element view
+     */
+    public void clear(){
+        spCryptoNet.setSelection(0);
+        etAddress.setText("");
+    }
+
+    /*
+     * Binds this view with the data of an element of the list
+     */
+    public void bindTo(final ContactAddress contactAddress) {
+        if (contactAddress == null){
+            this.clear();
+        } else {
+            etAddress.setText(contactAddress.getAddress());
+
+            CryptoNet nextCryptoNet;
+            for (int i=0;i<cryptoNetArray.length;i++){
+                nextCryptoNet = cryptoNetArray[i];
+                if (nextCryptoNet.equals(contactAddress.getCryptoNet())){
+                    spCryptoNet.setSelection(i);
+                    break;
+                }
+            }
+
+
+            spCryptoNet.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
+                @Override
+                public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
+                    contactAddress.setCryptoNet(((CryptoNet)spCryptoNet.getSelectedItem()));
+                }
+
+                @Override
+                public void onNothingSelected(AdapterView<?> adapterView) {
+                    //
+                }
+            });
+            etAddress.addTextChangedListener(new TextWatcher() {
+                @Override
+                public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
+                    //
+                }
+
+                @Override
+                public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
+                    //
+                }
+
+                @Override
+                public void afterTextChanged(Editable editable) {
+                    contactAddress.setAddress(editable.toString());
+                }
+            });
+            //etAddress.setText(contactAddress.getAddress());
+        }
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/views/ContactListView.java

@@ -12,9 +12,7 @@ import android.widget.RelativeLayout;
 
 import cy.agorise.crystalwallet.R;
 import cy.agorise.crystalwallet.models.Contact;
-import cy.agorise.crystalwallet.models.CryptoCoinTransaction;
 import cy.agorise.crystalwallet.viewmodels.ContactListViewModel;
-import cy.agorise.crystalwallet.viewmodels.TransactionListViewModel;
 
 /**
  * Created by Henry Varona on 1/15/2018.

app/src/main/java/cy/agorise/crystalwallet/views/ContactSelectionListAdapter.java

@@ -0,0 +1,57 @@
+package cy.agorise.crystalwallet.views;
+
+
+import android.support.v7.recyclerview.extensions.ListAdapter;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import cy.agorise.crystalwallet.R;
+import cy.agorise.crystalwallet.models.Contact;
+
+/**
+ * Created by Henry Varona on 2/16/2018.
+ *
+ * An adapter to show the elements of a list of contacts to be selected by the user
+ */
+
+public class ContactSelectionListAdapter extends ListAdapter<Contact, ContactSelectionViewHolder> implements ContactSelectionViewHolder.ContactSelectionViewHolderListener {
+
+    private ContactSelectionListAdapterListener listener;
+
+    public ContactSelectionListAdapter() {
+        super(Contact.DIFF_CALLBACK);
+    }
+
+    @Override
+    public ContactSelectionViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.contact_selection_list_item,parent,false);
+        return new ContactSelectionViewHolder(v);
+    }
+
+    @Override
+    public void onBindViewHolder(ContactSelectionViewHolder holder, int position) {
+        Contact contact = getItem(position);
+        if (contact != null) {
+            holder.bindTo(contact);
+            holder.setListener(this);
+        } else {
+            holder.clear();
+        }
+    }
+
+    @Override
+    public void onContactSelected(ContactSelectionViewHolder contactSelectionViewHolder, Contact contact) {
+        if (this.listener != null){
+            this.listener.onContactSelected(contact);
+        }
+    }
+
+    public void setListener(ContactSelectionListAdapterListener listener){
+        this.listener = listener;
+    }
+
+    public interface ContactSelectionListAdapterListener{
+        public void onContactSelected(Contact contact);
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/views/ContactSelectionViewHolder.java

@@ -0,0 +1,93 @@
+package cy.agorise.crystalwallet.views;
+
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.support.v7.app.AlertDialog;
+import android.support.v7.widget.RecyclerView;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.squareup.picasso.Picasso;
+
+import cy.agorise.crystalwallet.R;
+import cy.agorise.crystalwallet.activities.CreateContactActivity;
+import cy.agorise.crystalwallet.dao.CrystalDatabase;
+import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.util.CircleTransformation;
+import cy.agorise.crystalwallet.util.MD5Hash;
+
+/**
+ * Created by Henry Varona on 2/16/2018.
+ *
+ * Represents an element view from the Contact Selection List
+ */
+
+public class ContactSelectionViewHolder extends RecyclerView.ViewHolder {
+    private TextView tvName;
+    private ImageView ivThumbnail;
+    private TextView tvLastPaid;
+    private Context context;
+    private ContactSelectionViewHolderListener listener;
+
+    public ContactSelectionViewHolder(View itemView) {
+        super(itemView);
+        //TODO: use ButterKnife to load this
+        tvName = (TextView) itemView.findViewById(R.id.tvContactName);
+        ivThumbnail = (ImageView) itemView.findViewById(R.id.ivContactThumbnail);
+        tvLastPaid = (TextView) itemView.findViewById(R.id.tvLastPaid);
+        this.context = itemView.getContext();
+
+    }
+
+    public void setListener(ContactSelectionViewHolderListener listener){
+        this.listener = listener;
+    }
+
+    /*
+     * Clears the information in this element view
+     */
+    public void clear(){
+        tvName.setText("");
+        ivThumbnail.setImageResource(android.R.color.transparent);
+        tvLastPaid.setText("");
+    }
+
+    /*
+     * Binds this view with the data of an element of the list
+     */
+    public void bindTo(final Contact contact) {
+        if (contact == null){
+            this.clear();
+        } else {
+            final ContactSelectionViewHolder thisViewHolder = this;
+
+            tvName.setText(contact.getName());
+            tvLastPaid.setText("Paid: 1 Jan, 2001 01:01");
+
+            if (contact.getEmail() != null){
+                String emailHash = MD5Hash.hash(contact.getEmail());
+                String gravatarUrl = "http://www.gravatar.com/avatar/" + emailHash + "?s=204&d=404";
+
+                Picasso.with(this.context)
+                        .load(gravatarUrl)
+                        .transform(new CircleTransformation())
+                        .into(ivThumbnail);
+            }
+
+            this.itemView.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View view) {
+                    if (listener != null){
+                        listener.onContactSelected(thisViewHolder, contact);
+                    }
+                }
+            });
+        }
+    }
+
+    public interface ContactSelectionViewHolderListener {
+        public void onContactSelected(ContactSelectionViewHolder contactSelectionViewHolder, Contact contact);
+    }
+}

app/src/main/java/cy/agorise/crystalwallet/views/ContactViewHolder.java

@@ -1,13 +1,24 @@
 package cy.agorise.crystalwallet.views;
 
 import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.provider.ContactsContract;
+import android.support.v7.app.AlertDialog;
 import android.support.v7.widget.RecyclerView;
+import android.support.v7.widget.ThemedSpinnerAdapter;
 import android.view.View;
 import android.widget.ImageView;
 import android.widget.TextView;
 
+import com.squareup.picasso.Picasso;
+
 import cy.agorise.crystalwallet.R;
+import cy.agorise.crystalwallet.activities.CreateContactActivity;
+import cy.agorise.crystalwallet.dao.CrystalDatabase;
 import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.util.CircleTransformation;
+import cy.agorise.crystalwallet.util.MD5Hash;
 
 /**
  * Created by Henry Varona on 1/17/2017.
@@ -19,6 +30,7 @@ public class ContactViewHolder extends RecyclerView.ViewHolder {
     private TextView tvName;
     private ImageView ivThumbnail;
     private TextView tvLastPaid;
+    private ImageView ivDeleteContact;
     private Context context;
 
     public ContactViewHolder(View itemView) {
@@ -27,6 +39,7 @@ public class ContactViewHolder extends RecyclerView.ViewHolder {
         tvName = (TextView) itemView.findViewById(R.id.tvContactName);
         ivThumbnail = (ImageView) itemView.findViewById(R.id.ivContactThumbnail);
         tvLastPaid = (TextView) itemView.findViewById(R.id.tvLastPaid);
+        ivDeleteContact = (ImageView) itemView.findViewById(R.id.ivDeleteContact);
         this.context = itemView.getContext();
 
     }
@@ -49,6 +62,47 @@ public class ContactViewHolder extends RecyclerView.ViewHolder {
         } else {
             tvName.setText(contact.getName());
             tvLastPaid.setText("Paid: 1 Jan, 2001 01:01");
+
+            this.itemView.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View view) {
+                    Intent intent = new Intent(itemView.getContext(), CreateContactActivity.class);
+                    intent.putExtra("CONTACT_ID", contact.getId());
+                    itemView.getContext().startActivity(intent);
+                }
+            });
+
+            if (contact.getEmail() != null){
+                String emailHash = MD5Hash.hash(contact.getEmail());
+                String gravatarUrl = "http://www.gravatar.com/avatar/" + emailHash + "?s=204&d=404";
+
+                Picasso.with(this.context)
+                        .load(gravatarUrl)
+                        .transform(new CircleTransformation())
+                        .into(ivThumbnail);
+            }
+
+            this.ivDeleteContact.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View view) {
+                    //delete the contact
+                    new AlertDialog.Builder(context)
+                        .setIcon(android.R.drawable.ic_dialog_alert)
+                        .setMessage("Are you sure you want to delete this contact?")
+                        .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
+
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                CrystalDatabase.getAppDatabase(context).contactDao().deleteContacts(contact);
+                            }
+
+                        })
+                        .setNegativeButton("No", null)
+                        .show();
+
+
+                }
+            });
         }
     }
 }

app/src/main/java/cy/agorise/crystalwallet/views/CryptoCoinBalanceListAdapter.java

@@ -17,16 +17,22 @@ import cy.agorise.crystalwallet.models.CryptoCoinBalance;
 
 public class CryptoCoinBalanceListAdapter extends ListAdapter<CryptoCoinBalance, CryptoCoinBalanceViewHolder> {
 
+    CryptoNetBalanceViewHolder cryptoNetBalanceViewHolder;
+
     public CryptoCoinBalanceListAdapter() {
         super(CryptoCoinBalance.DIFF_CALLBACK);
     }
 
+    public void setCryptoNetBalanceViewHolder(CryptoNetBalanceViewHolder cryptoNetBalanceViewHolder){
+        this.cryptoNetBalanceViewHolder = cryptoNetBalanceViewHolder;
+    }
+
     @Override
     public CryptoCoinBalanceViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
         View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.crypto_coin_balance_list_item,parent,false);
 
 
-        return new CryptoCoinBalanceViewHolder(v);
+        return new CryptoCoinBalanceViewHolder(v, cryptoNetBalanceViewHolder);
     }
 
     @Override

app/src/main/java/cy/agorise/crystalwallet/views/CryptoCoinBalanceListView.java

@@ -83,7 +83,7 @@ public class CryptoCoinBalanceListView extends RelativeLayout {
      *
      * @param data the list of crypto coin balances that will be show to the user
      */
-    public void setData(List<CryptoCoinBalance> data){
+    public void setData(List<CryptoCoinBalance> data, CryptoNetBalanceViewHolder cryptoNetBalanceViewHolder){
         //initializes the list adapter
         if (this.listAdapter == null) {
             this.listAdapter = new CryptoCoinBalanceListAdapter();
@@ -92,6 +92,7 @@ public class CryptoCoinBalanceListView extends RelativeLayout {
 
         //sets the data of the list adapter
         if (data != null) {
+            this.listAdapter.setCryptoNetBalanceViewHolder(cryptoNetBalanceViewHolder);
             this.listAdapter.setList(data);
         }
     }

app/src/main/java/cy/agorise/crystalwallet/views/CryptoCoinBalanceViewHolder.java

@@ -39,12 +39,15 @@ public class CryptoCoinBalanceViewHolder extends RecyclerView.ViewHolder {
 
     private Context context;
 
-    public CryptoCoinBalanceViewHolder(View itemView) {
+    private CryptoNetBalanceViewHolder cryptoNetBalanceViewHolder;
+
+    public CryptoCoinBalanceViewHolder(View itemView, CryptoNetBalanceViewHolder cryptoNetBalanceViewHolder) {
         super(itemView);
         //TODO: use ButterKnife to load this
         cryptoCoinName = (TextView) itemView.findViewById(R.id.tvCryptoCoinName);
         cryptoCoinBalance = (TextView) itemView.findViewById(R.id.tvCryptoCoinBalanceAmount);
         cryptoCoinBalanceEquivalence = (TextView) itemView.findViewById(R.id.tvCryptoCoinBalanceEquivalence);
+        this.cryptoNetBalanceViewHolder = cryptoNetBalanceViewHolder;
         this.context = itemView.getContext();
 
     }
@@ -80,30 +83,41 @@ public class CryptoCoinBalanceViewHolder extends RecyclerView.ViewHolder {
                 public void onChanged(@Nullable GeneralSetting generalSetting) {
                     if (generalSetting != null) {
                         //Gets the currency object of the preferred currency
-                        CryptoCurrency currencyTo = CrystalDatabase.getAppDatabase(context).cryptoCurrencyDao().getByName(generalSetting.getValue());
+                        LiveData<CryptoCurrency> currencyToLiveData = CrystalDatabase.getAppDatabase(context).cryptoCurrencyDao().getLiveDataByName(generalSetting.getValue());
 
-                        //Retrieves the equivalent value of this balance using the "From" currency and the "To" currency
+                        currencyToLiveData.observe((LifecycleOwner) context, new Observer<CryptoCurrency>() {
-                        LiveData<CryptoCurrencyEquivalence> currencyEquivalenceLiveData = CrystalDatabase.getAppDatabase(context)
-                                .cryptoCurrencyEquivalenceDao().getByFromTo(
-                                        currencyTo.getId(),
-                                        currencyFrom.getId()
-
-                                );
-
-                        //Observes the equivalent value. If the equivalent value changes, this will keep the value showed correct
-                        currencyEquivalenceLiveData.observe((LifecycleOwner) context, new Observer<CryptoCurrencyEquivalence>() {
                             @Override
-                            public void onChanged(@Nullable CryptoCurrencyEquivalence cryptoCurrencyEquivalence) {
+                            public void onChanged(@Nullable CryptoCurrency cryptoCurrency) {
-                                if (cryptoCurrencyEquivalence != null) {
+                                if (cryptoCurrency != null) {
-                                    CryptoCurrency toCurrency = CrystalDatabase.getAppDatabase(context).cryptoCurrencyDao().getById(cryptoCurrencyEquivalence.getFromCurrencyId());
+                                    CryptoCurrency currencyTo = cryptoCurrency;
-                                    String equivalenceString = String.format(
-                                            "%.2f",
-                                            (balance.getBalance()/Math.pow(10,currencyFrom.getPrecision()))/
-                                            (cryptoCurrencyEquivalence.getValue()/Math.pow(10,toCurrency.getPrecision()))
-                                    );
 
-                                    cryptoCoinBalanceEquivalence.setText(
+                                    //Retrieves the equivalent value of this balance using the "From" currency and the "To" currency
-                                            equivalenceString + " " + toCurrency.getName());
+                                    LiveData<CryptoCurrencyEquivalence> currencyEquivalenceLiveData = CrystalDatabase.getAppDatabase(context)
+                                            .cryptoCurrencyEquivalenceDao().getByFromTo(
+                                                    currencyTo.getId(),
+                                                    currencyFrom.getId()
+
+                                            );
+
+                                    //Observes the equivalent value. If the equivalent value changes, this will keep the value showed correct
+                                    currencyEquivalenceLiveData.observe((LifecycleOwner) context, new Observer<CryptoCurrencyEquivalence>() {
+                                        @Override
+                                        public void onChanged(@Nullable CryptoCurrencyEquivalence cryptoCurrencyEquivalence) {
+                                            if (cryptoCurrencyEquivalence != null) {
+                                                CryptoCurrency toCurrency = CrystalDatabase.getAppDatabase(context).cryptoCurrencyDao().getById(cryptoCurrencyEquivalence.getFromCurrencyId());
+                                                double equivalentValue = (balance.getBalance() / Math.pow(10, currencyFrom.getPrecision())) /
+                                                        (cryptoCurrencyEquivalence.getValue() / Math.pow(10, toCurrency.getPrecision()));
+                                                String equivalenceString = String.format(
+                                                        "%.2f",
+                                                        equivalentValue
+                                                );
+
+                                                cryptoNetBalanceViewHolder.setEquivalentBalance(balance,equivalentValue);
+                                                cryptoCoinBalanceEquivalence.setText(
+                                                        equivalenceString + " " + toCurrency.getName());
+                                            }
+                                        }
+                                    });
                                 }
                             }
                         });

app/src/main/java/cy/agorise/crystalwallet/views/CryptoNetBalanceViewHolder.java

@@ -16,6 +16,7 @@ import android.widget.Button;
 import android.widget.ImageView;
 import android.widget.TextView;
 
+import java.util.HashMap;
 import java.util.List;
 
 import butterknife.BindView;
@@ -48,11 +49,18 @@ public class CryptoNetBalanceViewHolder extends RecyclerView.ViewHolder {
      */
     TextView cryptoNetName;
 
+    /*
+     * the view holding the equivalent total of the crypto net user account
+     */
+    TextView cryptoNetEquivalentTotal;
+
     /*
      * The list view of the crypto coins balances of this crypto net balance
      */
     CryptoCoinBalanceListView cryptoCoinBalanceListView;
 
+    HashMap<CryptoCoinBalance, Double> equivalentTotalHashMap;
+
     /*
      * The button for sending transactions from this crypto net balance account
      */
@@ -86,6 +94,7 @@ public class CryptoNetBalanceViewHolder extends RecyclerView.ViewHolder {
         //TODO: use ButterKnife to load the views
         cryptoNetIcon = (ImageView) itemView.findViewById(R.id.ivCryptoNetIcon);
         cryptoNetName = (TextView) itemView.findViewById(R.id.tvCryptoNetName);
+        cryptoNetEquivalentTotal = (TextView) itemView.findViewById(R.id.tvCryptoNetEquivalentTotal);
         cryptoCoinBalanceListView = (CryptoCoinBalanceListView) itemView.findViewById(R.id.cryptoCoinBalancesListView);
         btnSendFromThisAccount = (Button) itemView.findViewById(R.id.btnSendFromThisAccount);
         btnReceiveToThisAccount = (Button) itemView.findViewById(R.id.btnReceiveWithThisAccount);
@@ -157,6 +166,23 @@ public class CryptoNetBalanceViewHolder extends RecyclerView.ViewHolder {
         newFragment.show(ft, "ReceiveDialog");
     }
 
+    public void setEquivalentBalance(CryptoCoinBalance cryptoCoinBalance, double equivalentValue){
+        if (this.equivalentTotalHashMap == null){
+            this.equivalentTotalHashMap = new HashMap<CryptoCoinBalance, Double>();
+        }
+
+        if (cryptoCoinBalance != null) {
+            this.equivalentTotalHashMap.put(cryptoCoinBalance, equivalentValue);
+            float totalEquivalent = 0;
+
+            for (Double nextEquivalent : this.equivalentTotalHashMap.values()){
+                totalEquivalent += nextEquivalent;
+            }
+
+            this.cryptoNetEquivalentTotal.setText(""+totalEquivalent);
+        }
+    }
+
     /*
      * Binds this view with the data of an element of the list
      */
@@ -164,6 +190,7 @@ public class CryptoNetBalanceViewHolder extends RecyclerView.ViewHolder {
         if (balance == null){
             cryptoNetName.setText("loading...");
         } else {
+            final CryptoNetBalanceViewHolder thisViewHolder = this;
             this.cryptoNetAccountId = balance.getAccountId();
             cryptoNetName.setText(balance.getCryptoNet().getLabel());
 
@@ -172,13 +199,15 @@ public class CryptoNetBalanceViewHolder extends RecyclerView.ViewHolder {
             cryptoCoinBalanceListViewModel.init(balance.getAccountId());
             LiveData<List<CryptoCoinBalance>> cryptoCoinBalanceData = cryptoCoinBalanceListViewModel.getCryptoCoinBalanceList();
 
-            cryptoCoinBalanceListView.setData(null);
+            cryptoCoinBalanceListView.setData(null, this);
 
             //Observes the livedata, so any of its changes on the database will be reloaded here
             cryptoCoinBalanceData.observe((LifecycleOwner)this.itemView.getContext(), new Observer<List<CryptoCoinBalance>>() {
                 @Override
                 public void onChanged(List<CryptoCoinBalance> cryptoCoinBalances) {
-                    cryptoCoinBalanceListView.setData(cryptoCoinBalances);
+                    cryptoCoinBalanceListView.setData(cryptoCoinBalances, thisViewHolder);
+
+
                 }
             });
         }

app/src/main/java/cy/agorise/crystalwallet/views/TransactionViewHolder.java

@@ -1,20 +1,30 @@
 package cy.agorise.crystalwallet.views;
 
 import android.arch.lifecycle.LifecycleOwner;
+import android.arch.lifecycle.LiveData;
+import android.arch.lifecycle.Observer;
 import android.arch.lifecycle.ViewModelProviders;
 import android.content.Context;
 import android.content.Intent;
+import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
 import android.support.v7.widget.RecyclerView;
 import android.view.View;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
 
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.time.LocalDateTime;
+import java.util.TimeZone;
+
 import cy.agorise.crystalwallet.R;
 import cy.agorise.crystalwallet.activities.CryptoCoinTransactionReceiptActivity;
 import cy.agorise.crystalwallet.models.CryptoCoinTransaction;
 import cy.agorise.crystalwallet.models.CryptoCurrency;
+import cy.agorise.crystalwallet.models.CryptoNetAccount;
 import cy.agorise.crystalwallet.viewmodels.CryptoCurrencyViewModel;
+import cy.agorise.crystalwallet.viewmodels.CryptoNetAccountViewModel;
 
 /**
  * Created by Henry Varona on 17/9/2017.
@@ -26,16 +36,18 @@ public class TransactionViewHolder extends RecyclerView.ViewHolder {
     /*
      * The view holding the transaction "from"
      */
-    private TextView transactionFrom;
+    private TextView tvFrom;
     /*
      * The view holding the transaction "to"
      */
-    private TextView transactionTo;
+    private TextView tvTo;
     /*
      * The view holding the transaction amount
      */
-    private TextView transactionAmount;
+    private TextView tvAmount;
+    private TextView tvEquivalent;
     private TextView tvTransactionDate;
+    private TextView tvTransactionHour;
     private View rootView;
 
     private Fragment fragment;
@@ -48,10 +60,12 @@ public class TransactionViewHolder extends RecyclerView.ViewHolder {
         this.cryptoCoinTransactionId = -1;
 
         rootView = itemView.findViewById(R.id.rlTransactionItem);
-        transactionFrom = (TextView) itemView.findViewById(R.id.fromText);
+        tvFrom = (TextView) itemView.findViewById(R.id.fromText);
-        transactionTo = (TextView) itemView.findViewById(R.id.toText);
+        tvTo = (TextView) itemView.findViewById(R.id.toText);
-        transactionAmount = (TextView) itemView.findViewById(R.id.amountText);
+        tvAmount = (TextView) itemView.findViewById(R.id.tvAmount);
+        tvEquivalent = (TextView) itemView.findViewById(R.id.tvEquivalent);
         tvTransactionDate = (TextView) itemView.findViewById(R.id.tvTransactionDate);
+        tvTransactionHour = (TextView) itemView.findViewById(R.id.tvTransactionHour);
         this.fragment = fragment;
 
         rootView.setOnClickListener(new View.OnClickListener() {
@@ -85,9 +99,12 @@ public class TransactionViewHolder extends RecyclerView.ViewHolder {
      * Clears all info in this element view
      */
     public void clear(){
-        transactionFrom.setText("loading...");
+        tvFrom.setText("loading...");
-        transactionTo.setText("");
+        tvTo.setText("");
-        transactionAmount.setText("");
+        tvAmount.setText("");
+        tvEquivalent.setText("");
+        tvTransactionDate.setText("");
+        tvTransactionHour.setText("");
     }
 
     /*
@@ -95,28 +112,53 @@ public class TransactionViewHolder extends RecyclerView.ViewHolder {
      */
     public void bindTo(final CryptoCoinTransaction transaction/*, final OnTransactionClickListener listener*/) {
         if (transaction == null){
-            transactionFrom.setText("loading...");
+            clear();
-            transactionTo.setText("");
-            transactionAmount.setText("");
         } else {
             this.cryptoCoinTransactionId = transaction.getId();
             CryptoCurrencyViewModel cryptoCurrencyViewModel = ViewModelProviders.of(this.fragment).get(CryptoCurrencyViewModel.class);
             CryptoCurrency cryptoCurrency = cryptoCurrencyViewModel.getCryptoCurrencyById(transaction.getIdCurrency());
+            CryptoNetAccountViewModel cryptoNetAccountViewModel = ViewModelProviders.of(this.fragment).get(CryptoNetAccountViewModel.class);
+            cryptoNetAccountViewModel.loadCryptoNetAccount(transaction.getAccountId());
+
             String amountString = String.format("%.2f",transaction.getAmount()/Math.pow(10,cryptoCurrency.getPrecision()));
 
-            tvTransactionDate.setText(transaction.getDate().toString());
+            DateFormat dateFormat = new SimpleDateFormat("dd MMM");
-            transactionFrom.setText(transaction.getFrom());
+            dateFormat.setTimeZone(TimeZone.getTimeZone("cet"));
-            transactionTo.setText(transaction.getTo());
+            DateFormat hourFormat = new SimpleDateFormat("HH:mm:ss");
+            hourFormat.setTimeZone(TimeZone.getTimeZone("cet"));
 
+            tvTransactionDate.setText(dateFormat.format(transaction.getDate()));
+            tvTransactionHour.setText(hourFormat.format(transaction.getDate())+" CET");
+
+            tvFrom.setText(transaction.getFrom());
+            tvTo.setText(transaction.getTo());
+
+            LiveData<CryptoNetAccount> cryptoNetAccountLiveData = cryptoNetAccountViewModel.getCryptoNetAccount();
+
+            cryptoNetAccountLiveData.observe(this.fragment, new Observer<CryptoNetAccount>() {
+                @Override
+                public void onChanged(@Nullable CryptoNetAccount cryptoNetAccount) {
+                    if (transaction.getInput()){
+                        tvTo.setText(cryptoNetAccount.getName());
+                    } else {
+                        tvFrom.setText(cryptoNetAccount.getName());
+                    }
+                }
+            });
+
+            String finalAmountText = "";
             if (transaction.getInput()) {
-                transactionAmount.setTextColor(itemView.getContext().getResources().getColor(R.color.green));
+                tvAmount.setTextColor(itemView.getContext().getResources().getColor(R.color.green));
+                finalAmountText = "+ "+amountString
+                        + " "
+                        + cryptoCurrency.getName();
             } else {
-                transactionAmount.setTextColor(itemView.getContext().getResources().getColor(R.color.red));
+                tvAmount.setTextColor(itemView.getContext().getResources().getColor(R.color.red));
+                finalAmountText = amountString
+                        + " "
+                        + cryptoCurrency.getName();
             }
-            transactionAmount.setText(
+            tvAmount.setText(finalAmountText);
-                    amountString
-                    + " "
-                    + cryptoCurrency.getName());
             //This will load the transaction receipt when the user clicks this view
             /*itemView.setOnClickListener(new View.OnClickListener() {
                 @Override

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

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item>
+        <shape android:shape="rectangle">
+            <stroke android:color="#5FBD8A" android:width="4dp"/>
+        </shape>
+    </item>
+    <item android:left="3dp">
+        <shape android:shape="rectangle">
+            <solid android:color="@android:color/white" />
+        </shape>
+    </item>
+</layer-list>

app/src/main/res/layout/activity_create_contact.xml

@@ -0,0 +1,174 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:paddingBottom="0dp"
+    android:paddingLeft="0dp"
+    android:paddingRight="0dp"
+    android:paddingTop="@dimen/activity_vertical_margin">
+
+    <TextView
+        android:id="@+id/tvName"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="@dimen/activity_horizontal_margin"
+        android:layout_marginRight="@dimen/activity_horizontal_margin"
+        android:layout_marginTop="10dp"
+        android:text="Contact Name"
+        android:textStyle="bold" />
+
+    <EditText
+        android:id="@+id/etName"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="@dimen/activity_horizontal_margin"
+        android:layout_marginRight="@dimen/activity_horizontal_margin"
+        android:background="@drawable/edittext_bg"
+        android:maxLines="1"
+        android:textColor="@color/black" />
+    <TextView
+        android:id="@+id/tvNameError"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="@dimen/activity_horizontal_margin"
+        android:layout_marginRight="@dimen/activity_horizontal_margin"
+        android:maxLines="1"
+        android:textColor="@color/red" />
+    <TextView
+        android:id="@+id/tvEmail"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="@dimen/activity_horizontal_margin"
+        android:layout_marginRight="@dimen/activity_horizontal_margin"
+        android:layout_marginTop="10dp"
+        android:text="Email"
+        android:textStyle="bold" />
+    <EditText
+        android:id="@+id/etEmail"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="@dimen/activity_horizontal_margin"
+        android:layout_marginRight="@dimen/activity_horizontal_margin"
+        android:background="@drawable/edittext_bg"
+        android:maxLines="1"
+        android:textColor="@color/black" />
+    <TextView
+        android:id="@+id/tvEmailError"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="@dimen/activity_horizontal_margin"
+        android:layout_marginRight="@dimen/activity_horizontal_margin"
+        android:maxLines="1"
+        android:textColor="@color/red" />
+    <RelativeLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+        <android.support.v7.widget.RecyclerView
+            android:id="@+id/rvContactAddresses"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"></android.support.v7.widget.RecyclerView>
+        <Button
+            android:id="@+id/btnAddAddress"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_below="@id/rvContactAddresses"
+            android:text="Add"/>
+    </RelativeLayout>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="@dimen/activity_horizontal_margin"
+        android:layout_marginRight="@dimen/activity_horizontal_margin"
+        android:layout_marginTop="10dp"
+        android:gravity="center"
+        android:orientation="horizontal">
+
+        <Button
+            android:id="@+id/btnCancel"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:layout_margin="10dp"
+            android:background="@color/pink"
+            android:text="@string/cancel"
+            android:textColor="@color/white" />
+
+        <Button
+            android:id="@+id/btnCreate"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:layout_margin="10dp"
+            android:background="@color/green"
+            android:padding="10dp"
+            android:text="Create Contact"
+            android:textColor="@color/white" />
+        <Button
+            android:id="@+id/btnModify"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:layout_margin="10dp"
+            android:background="@color/green"
+            android:padding="10dp"
+            android:text="Modify Contact"
+            android:textColor="@color/white" />
+
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@color/white"
+        android:gravity="bottom"
+        android:orientation="vertical">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:background="@color/black"></LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="35dp"
+            android:background="@color/bottomBarColor"
+            android:gravity="bottom"
+            android:orientation="horizontal">
+
+            <TextView
+                android:id="@+id/tvAppVersion_brain_key_activity"
+                android:layout_width="0dp"
+                android:layout_height="match_parent"
+                android:layout_weight="1"
+                android:gravity="center"
+                android:text="@string/v_1_0_beta" />
+
+            <TextView
+                android:id="@+id/tvBlockNumberHead_brain_key_activity"
+                android:layout_width="0dp"
+                android:layout_height="match_parent"
+                android:layout_weight="2"
+                android:gravity="center"
+                android:text="@string/block_number" />
+
+            <ImageView
+                android:id="@+id/ivSocketConnected_brain_key_activity"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center"
+                android:layout_weight="0.5" />
+
+            <ImageView
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center"
+                android:layout_weight="0.5"
+                android:src="@drawable/icon_setting"
+                android:visibility="invisible" />
+        </LinearLayout>
+    </LinearLayout>
+
+</LinearLayout>

app/src/main/res/layout/activity_pin_request.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:gravity="center"
+        android:padding="5dp"
+        android:background="@color/colorPrimary">
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textColor="@color/white"
+            android:textSize="30dp"
+            android:padding="10dp"
+            android:background="@color/colorPrimary"
+            android:text="Enter Pin:"/>
+
+        <EditText
+            android:id="@+id/etPassword"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:inputType="numberPassword" />
+    </LinearLayout>
+</LinearLayout>

app/src/main/res/layout/balance_list_item.xml

@@ -14,7 +14,7 @@
         android:layout_alignParentStart="true"
         android:layout_alignParentTop="true">
 
-        <LinearLayout
+        <RelativeLayout
             android:id="@+id/cryptoNetBalanceTitleBarLayout"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
@@ -31,20 +31,30 @@
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:ems="10"
+                android:layout_toRightOf="@id/ivCryptoNetIcon"
                 android:text="unknown coin" />
 
+            <TextView
+                android:id="@+id/tvCryptoNetEquivalentTotal"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_alignParentRight="true"
+                android:text="0.003€" />
+
             <Button
                 android:id="@+id/btnSendFromThisAccount"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:text="send"/>
+                android:text="send"
+                android:visibility="gone" />
 
             <Button
                 android:id="@+id/btnReceiveWithThisAccount"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:text="receive"/>
+                android:text="receive"
-        </LinearLayout>
+                android:visibility="gone" />
+        </RelativeLayout>
 
         <cy.agorise.crystalwallet.views.CryptoCoinBalanceListView
             android:id="@+id/cryptoCoinBalancesListView"

app/src/main/res/layout/contact_address_list_item.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:paddingLeft="10dp"
+    android:paddingRight="10dp"
+    android:paddingTop="10dp">
+
+    <RelativeLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_alignParentStart="true"
+        android:layout_alignParentTop="true">
+
+        <Spinner
+            android:layout_width="@dimen/icon_size"
+            android:layout_height="@dimen/icon_size"
+            android:id="@+id/spCryptoNet"/>
+
+        <EditText
+            android:id="@+id/etAddress"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_toRightOf="@+id/spCryptoNet"
+            android:layout_alignParentEnd="true"
+            android:textStyle="bold" />
+    </RelativeLayout>
+</LinearLayout>

app/src/main/res/layout/contact_list_item.xml

@@ -34,6 +34,14 @@
             android:layout_below="@+id/tvContactName"
             android:layout_toRightOf="@+id/ivContactThumbnail"
             android:text="Paid: Jan 1, 2001, 01:01"
-            android:textColor="@android:color/darker_gray" />
+            android:textColor="@android:color/darker_gray"
+            android:visibility="gone" />
+
+        <ImageView
+            android:id="@+id/ivDeleteContact"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignParentEnd="true"
+            android:src="@drawable/deleteicon" />
     </RelativeLayout>
 </LinearLayout>

app/src/main/res/layout/contact_selection_list_item.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:paddingLeft="10dp"
+    android:paddingRight="10dp"
+    android:paddingTop="10dp">
+
+    <RelativeLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_alignParentStart="true"
+        android:layout_alignParentTop="true">
+
+        <ImageView
+            android:layout_width="@dimen/icon_size"
+            android:layout_height="@dimen/icon_size"
+            android:id="@+id/ivContactThumbnail"/>
+
+        <TextView
+            android:id="@+id/tvContactName"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_toRightOf="@+id/ivContactThumbnail"
+            android:text="Loading name..."
+            android:textStyle="bold" />
+
+        <TextView
+            android:id="@+id/tvLastPaid"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_below="@+id/tvContactName"
+            android:layout_toRightOf="@+id/ivContactThumbnail"
+            android:text="Paid: Jan 1, 2001, 01:01"
+            android:textColor="@android:color/darker_gray" />
+    </RelativeLayout>
+</LinearLayout>

app/src/main/res/layout/fragment_general_settings.xml

@@ -56,9 +56,9 @@
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_marginTop="8dp"
-            app:layout_constraintTop_toBottomOf="@+id/tvTaxableCountry"
+            app:layout_constraintEnd_toEndOf="@id/spBackupAsset"
             app:layout_constraintStart_toStartOf="@id/spBackupAsset"
-            app:layout_constraintEnd_toEndOf="@id/spBackupAsset"/>
+            app:layout_constraintTop_toBottomOf="@+id/tvTaxableCountry" />
 
         <View
             android:id="@+id/vTaxableCountry"

app/src/main/res/layout/fragment_pin_security.xml

@@ -28,6 +28,13 @@
         app:layout_constraintTop_toBottomOf="@+id/tvCurrentPin"
         tools:ignore="LabelFor" />
 
+    <TextView
+        android:id="@+id/tvCurrentPinError"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textColor="@color/red"
+        app:layout_constraintTop_toBottomOf="@+id/etCurrentPin" />
+
     <EditText
         android:id="@+id/etNewPin"
         android:layout_width="0dp"
@@ -39,7 +46,13 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintHorizontal_bias="0.5"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/etCurrentPin" />
+        app:layout_constraintTop_toBottomOf="@+id/tvCurrentPinError" />
+    <TextView
+        android:id="@+id/tvNewPinError"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textColor="@color/red"
+        app:layout_constraintTop_toBottomOf="@+id/etNewPin" />
 
     <EditText
         android:id="@+id/etConfirmPin"
@@ -52,6 +65,11 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintHorizontal_bias="0.5"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/etNewPin" />
+        app:layout_constraintTop_toBottomOf="@+id/tvNewPinError" />
-
+    <TextView
+        android:id="@+id/tvConfirmPinError"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textColor="@color/red"
+        app:layout_constraintTop_toBottomOf="@+id/etConfirmPin" />
 </android.support.constraint.ConstraintLayout>

app/src/main/res/layout/fragment_transactions.xml

@@ -4,9 +4,22 @@
     android:layout_height="match_parent"
     tools:context="cy.agorise.crystalwallet.fragments.TransactionsFragment">
 
-    <cy.agorise.crystalwallet.views.TransactionListView
+    <RelativeLayout
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="wrap_content">
-        android:id="@+id/vTransactionListView" />
 
+        <!--<TextView
+            android:id="@+id/tvTransactionSearch"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android: />
+<Spinner
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"></Spinner>
+-->
+        <cy.agorise.crystalwallet.views.TransactionListView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:id="@+id/vTransactionListView" />
+    </RelativeLayout>
 </android.support.v4.widget.NestedScrollView>

app/src/main/res/layout/transaction_list_item.xml

@@ -1,59 +1,111 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:orientation="vertical"
+    android:paddingBottom="5dp"
     android:paddingLeft="10dp"
     android:paddingRight="10dp"
-    android:paddingTop="10dp">
+    android:paddingTop="5dp">
 
     <RelativeLayout
         android:id="@+id/rlTransactionItem"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_alignParentStart="true"
-        android:layout_alignParentTop="true">
+        android:layout_alignParentTop="true"
-
+        android:background="@drawable/transaction_list_item_background">
-        <TextView
-            android:id="@+id/tvTransactionDate"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:layout_centerHorizontal="true"
-            android:ems="10"
-            android:gravity="center"
-            android:text="date" />
 
         <TextView
             android:id="@+id/fromText"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_below="@+id/tvTransactionDate"
+            android:layout_alignParentStart="true"
+            android:layout_marginLeft="5dp"
+            android:layout_toStartOf="@+id/ivArrowFromTo"
             android:ems="10"
             android:inputType="text"
             android:text="from" />
 
+        <ImageView
+            android:id="@+id/ivArrowFromTo"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_centerHorizontal="true"
+            android:tint="@color/black"
+            app:srcCompat="@drawable/ic_arrow_forward" />
+
         <TextView
             android:id="@+id/toText"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_below="@+id/tvTransactionDate"
-            android:layout_alignParentBottom="false"
             android:layout_alignParentRight="true"
+            android:layout_toEndOf="@+id/ivArrowFromTo"
             android:ems="10"
             android:inputType="text"
             android:text="to"
             android:textAlignment="textEnd" />
 
+        <Space
+            android:id="@+id/sAfterFromTo"
+            android:layout_marginTop="5dp"
+            android:layout_marginBottom="5dp"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_below="@id/fromText"/>
+
         <TextView
-            android:id="@+id/amountText"
+            android:id="@+id/tvTransactionDate"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_below="@id/sAfterFromTo"
+            android:layout_marginLeft="5dp"
+            android:layout_toStartOf="@+id/ivArrowFromTo"
+            android:ems="10"
+            android:text="02 Oct"
+            android:textSize="14sp"
+            android:textStyle="bold" />
+
+        <TextView
+            android:id="@+id/tvTransactionHour"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_below="@id/tvTransactionDate"
+            android:layout_marginLeft="5dp"
+            android:layout_toStartOf="@+id/ivArrowFromTo"
+            android:ems="10"
+            android:text="15:01:18 CET" />
+
+        <TextView
+            android:id="@+id/tvAmount"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            android:layout_alignParentEnd="true"
             android:layout_alignWithParentIfMissing="false"
-            android:layout_below="@+id/fromText"
+            android:layout_below="@id/sAfterFromTo"
-            android:layout_centerHorizontal="true"
+            android:layout_toEndOf="@+id/ivArrowFromTo"
             android:ems="10"
-            android:gravity="center"
             android:inputType="text"
-            android:text="amount" />
+            android:text="+ 1 BTS"
+            android:textAlignment="textEnd"
+            android:textSize="14sp"
+            android:textStyle="bold" />
+
+        <TextView
+            android:id="@+id/tvEquivalent"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignParentEnd="true"
+            android:layout_alignWithParentIfMissing="false"
+            android:layout_below="@id/tvAmount"
+            android:layout_toEndOf="@+id/ivArrowFromTo"
+            android:ems="10"
+            android:inputType="text"
+            android:text="0.005€"
+            android:textAlignment="textEnd" />
+
+
+
     </RelativeLayout>
 </LinearLayout>