Added explicit info about keeping mnemonic seed safe (#92)

app/build.gradle

@@ -8,8 +8,8 @@ android {
         applicationId "com.m2049r.xmrwallet"
         minSdkVersion 21
         targetSdkVersion 25
-        versionCode 23
-        versionName "1.0"
+        versionCode 24
+        versionName "1.0.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         externalNativeBuild {
             cmake {

app/src/main/java/com/m2049r/xmrwallet/GenerateReviewFragment.java

@@ -19,9 +19,12 @@ package com.m2049r.xmrwallet;
 import android.content.Context;
 import android.os.AsyncTask;
 import android.os.Bundle;
+import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
 import android.util.Log;
 import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Button;
@@ -214,4 +217,15 @@ public class GenerateReviewFragment extends Fragment {
     boolean backOk() {
         return !type.equals(GenerateReviewFragment.VIEW_TYPE_ACCEPT);
     }
-}
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setHasOptionsMenu(true);
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        inflater.inflate(R.menu.wallet_details_menu, menu);
+    }
+}

app/src/main/java/com/m2049r/xmrwallet/LoginActivity.java

@@ -973,6 +973,9 @@ public class LoginActivity extends AppCompatActivity
             case R.id.action_create_help:
                 HelpFragment.displayHelp(getSupportFragmentManager(),R.raw.help_create);
                 return true;
+            case R.id.action_details_help:
+                HelpFragment.displayHelp(getSupportFragmentManager(),R.raw.help_details);
+                return true;
             case R.id.action_lincense_info:
                 LicensesFragment.displayLicensesFragment(getSupportFragmentManager());
                 return true;

app/src/main/res/menu/wallet_details_menu.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <item
+        android:id="@+id/action_details_help"
+        android:icon="@drawable/ic_help_black_24dp"
+        android:orderInCategory="100"
+        android:title="@string/menu_help"
+        app:showAsAction="always" />
+
+</menu>

app/src/main/res/raw/help_create.html

@@ -15,9 +15,25 @@ In all cases you need to name your wallet and give it a password. The password i
 securing your wallet data on the device. Use a strong password - better a passphrase.
 
 <h2>New Address</h2>
-You need a new Monero Address.<br/>
-No need to enter additional info.
-
+You need a new Monero Address - no need to enter additional info.
+<h3>Take Note of your Mnemonic Seed!</h3>
+<p>
+    On the following screen you will find your 25-word "Mnemonic Seed".
+    This is the only data needed to recover your wallet at a later time
+    and gain full access to your funds.
+    Keeping this secure and private is very important, as it gives <em>anyone</em>
+    full access to your funds!
+</p>
+<p>
+    If you loose your wallet password, you can still recover your wallet with the mnemonic seed.
+</p>
+<p>
+    There is no way to recover it if it is lost! Your funds would be lost.
+    The mnemonic seed can also never be changed, and if it is stolen or otherwise compromised,
+    you will have to move your funds to new wallet (with a new mnemonic seed). Therefore, it is best
+    that you backup your mnemonic seed by writing it down and storing it in <em>multiple</em> safe
+    and secure places.
+</p>
 <h2>Recover from Seed</h2>
 You already have a Monero Address and want to recover the transactions from the blockchain.<br/>
 Enter your Seed in the field "Mnemonic Seed". If you know the block number of the first

app/src/main/res/raw/help_details.html

@@ -0,0 +1,44 @@
+<html>
+<head>
+    <style>body {font-family: sans-serif; font-size: 1em;}</style>
+</head>
+<body>
+<h1>Wallet Details</h1>
+Here you see the details of your wallet.
+<ul>
+    <li>Mnemonic Seed</li>
+    <li>Public Address</li>
+    <li>View Key</li>
+    <li>Spend Key</li>
+</ul>
+
+<h2>Mnemonic Seed</h2>
+<p>
+    Your 25-word "Mnemonic Seed". This is the only data needed to recover your wallet at a later
+    time and gain full access to your funds.
+    Keeping this secure and private is very important, as it gives <em>anyone</em>
+    full access to your funds!
+</p>
+<p>
+    If you loose your wallet password, you can still recover your wallet with the mnemonic seed.
+</p>
+<p>
+    There is no way to recover it if it is lost! Your funds would be lost.
+    The mnemonic seed can also never be changed, and if it is stolen or otherwise compromised,
+    you will have to move your funds to new wallet (with a new mnemonic seed). Therefore, it is best
+    that you backup your mnemonic seed by writing it down and storing it in <em>multiple</em> safe
+    and secure places.
+</p>
+
+<h2>Public Address</h2>
+This is your account number. You can use it to receive funds. A sender needs to know nothing
+more.
+
+<h2>View Key</h2>
+This key is required for creating a view-only wallet or for recovering from keys.
+
+<h2>Spend Key</h2>
+This is key is required for recovering from keys.
+
+</body>
+</html>