Added the BrainKey Bitshares dictionary as a text file in the app assets and make use of it to automatically generate BrainKeys in CreateAccountActivity when the user is trying to create a new account.

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

@@ -1,21 +1,46 @@
 package cy.agorise.bitsybitshareswallet.fragments
 
 import android.os.Bundle
+import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import cy.agorise.bitsybitshareswallet.R
+import cy.agorise.bitsybitshareswallet.utils.toast
+import cy.agorise.graphenej.Address
+import cy.agorise.graphenej.BrainKey
 import cy.agorise.graphenej.api.ConnectionStatusUpdate
 import cy.agorise.graphenej.models.JsonRpcResponse
+import kotlinx.android.synthetic.main.fragment_create_account.*
+import org.bitcoinj.core.ECKey
+import java.io.BufferedReader
+import java.io.IOException
+import java.io.InputStreamReader
 
 class CreateAccountFragment : ConnectedFragment() {
 
+    companion object {
+        private const val TAG = "CreateAccountFragment"
+
+        private const val BRAINKEY_FILE = "brainkeydict.txt"
+    }
+
+    private lateinit var mBrainKey: BrainKey
+    private lateinit var mAddress: String
+
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
         setHasOptionsMenu(true)
 
         return inflater.inflate(R.layout.fragment_create_account, container, false)
     }
 
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        // Generating BrainKey
+        generateKeys()
+    }
+
     override fun handleJsonRpcResponse(response: JsonRpcResponse<*>) {
         // TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
     }
@@ -23,4 +48,37 @@ class CreateAccountFragment : ConnectedFragment() {
     override fun handleConnectionStatusUpdate(connectionStatusUpdate: ConnectionStatusUpdate) {
         // TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
     }
+
+    /**
+     * Method that generates a fresh key that will be controlling the newly created account.
+     */
+    private fun generateKeys() {
+        var reader: BufferedReader? = null
+        val dictionary: String
+        try {
+            reader = BufferedReader(InputStreamReader(context!!.assets.open(BRAINKEY_FILE), "UTF-8"))
+            dictionary = reader.readLine()
+
+            val brainKeySuggestion = BrainKey.suggest(dictionary)
+            mBrainKey = BrainKey(brainKeySuggestion, 0)
+            val address = Address(ECKey.fromPublicOnly(mBrainKey.privateKey.pubKey))
+            Log.d(TAG, "brain key: $brainKeySuggestion")
+            Log.d(TAG, "address would be: " + address.toString())
+            mAddress = address.toString()
+            tvBrainKey.text = mBrainKey.brainKey
+
+        } catch (e: IOException) {
+            Log.e(TAG, "IOException while trying to generate key. Msg: " + e.message)
+            context?.toast(getString(R.string.error__read_dict_file))
+        } finally {
+            if (reader != null) {
+                try {
+                    reader.close()
+                } catch (e: IOException) {
+                    Log.e(TAG, "IOException while trying to close BufferedReader. Msg: " + e.message)
+                }
+
+            }
+        }
+    }
 }

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

@@ -1,12 +1,14 @@
 <?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="wrap_content" xmlns:tools="http://schemas.android.com/tools"
+    android:layout_height="wrap_content"
     android:orientation="vertical"
     android:paddingLeft="@dimen/activity_horizontal_margin"
     android:paddingRight="@dimen/activity_horizontal_margin"
     android:paddingTop="@dimen/activity_vertical_margin"
-    android:paddingBottom="@dimen/activity_vertical_margin" xmlns:android="http://schemas.android.com/apk/res/android">
+    android:paddingBottom="@dimen/activity_vertical_margin">
 
     <RelativeLayout
         android:layout_width="match_parent"
@@ -73,7 +75,7 @@
     </com.google.android.material.textfield.TextInputLayout>
 
     <TextView
-        android:id="@+id/brain_key"
+        android:id="@+id/tvBrainKey"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:background="@drawable/outline_rounded_corners"

app/src/main/res/values/strings.xml

@@ -27,6 +27,7 @@
 
     <!-- Create Account -->
     <string name="text__bitshares_account_name">BitShares account name</string>
+    <string name="error__read_dict_file">Error reading dictionary file</string>
 
     <!-- Home -->
     <string name="title_transactions">Transactions</string>