Update FAQ.md

* clear error

* isAddressValid refactoring

* better numpad layout

* receive qr code as card

* scan integrated address

.gitignore

@@ -7,3 +7,4 @@
 /captures
 .externalNativeBuild
 .DS_Store
+/app/release

.idea/.gitignore

@@ -1,2 +1,3 @@
 workspace.xml
 markdown-*
+misc.xml

.idea/libraries/constraint_layout_1_0_2.xml

@@ -1,10 +0,0 @@
-<component name="libraryTable">
-  <library name="constraint-layout-1.0.2">
-    <CLASSES>
-      <root url="file://$USER_HOME$/.android/build-cache/983cd9976ef510b2538361561f2ee91f1200f245/output/res" />
-      <root url="jar://$USER_HOME$/.android/build-cache/983cd9976ef510b2538361561f2ee91f1200f245/output/jars/classes.jar!/" />
-    </CLASSES>
-    <JAVADOC />
-    <SOURCES />
-  </library>
-</component>

.idea/libraries/constraint_layout_solver_1_0_2.xml

@@ -1,9 +0,0 @@
-<component name="libraryTable">
-  <library name="constraint-layout-solver-1.0.2">
-    <CLASSES>
-      <root url="jar://$USER_HOME$/AppData/Local/Android/Sdk/extras/m2repository/com/android/support/constraint/constraint-layout-solver/1.0.2/constraint-layout-solver-1.0.2.jar!/" />
-    </CLASSES>
-    <JAVADOC />
-    <SOURCES />
-  </library>
-</component>

.idea/libraries/core_1_9_8.xml

@@ -1,10 +0,0 @@
-<component name="libraryTable">
-  <library name="core-1.9.8">
-    <CLASSES>
-      <root url="jar://$USER_HOME$/.android/build-cache/db7eb580bfa6467818ef12c5f1fa42273b50aa3a/output/jars/classes.jar!/" />
-      <root url="file://$USER_HOME$/.android/build-cache/db7eb580bfa6467818ef12c5f1fa42273b50aa3a/output/res" />
-    </CLASSES>
-    <JAVADOC />
-    <SOURCES />
-  </library>
-</component>

.idea/libraries/core_3_3_0.xml

@@ -1,11 +0,0 @@
-<component name="libraryTable">
-  <library name="core-3.3.0">
-    <CLASSES>
-      <root url="jar://$USER_HOME$/.gradle/caches/modules-2/files-2.1/com.google.zxing/core/3.3.0/73c49077166faa4c3c0059c5f583d1d7bd1475fe/core-3.3.0.jar!/" />
-    </CLASSES>
-    <JAVADOC />
-    <SOURCES>
-      <root url="jar://$USER_HOME$/.gradle/caches/modules-2/files-2.1/com.google.zxing/core/3.3.0/39d966e052e28fc7d83793b02e0af97ccf955745/core-3.3.0-sources.jar!/" />
-    </SOURCES>
-  </library>
-</component>

.idea/libraries/zxing_1_9_8.xml

@@ -1,10 +0,0 @@
-<component name="libraryTable">
-  <library name="zxing-1.9.8">
-    <CLASSES>
-      <root url="jar://$USER_HOME$/.android/build-cache/8d8f2e0e10c7af73321454f6fa481e8e5438e654/output/jars/classes.jar!/" />
-      <root url="file://$USER_HOME$/.android/build-cache/8d8f2e0e10c7af73321454f6fa481e8e5438e654/output/res" />
-    </CLASSES>
-    <JAVADOC />
-    <SOURCES />
-  </library>
-</component>

.idea/misc.xml

@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="EntryPointsManager">
-    <entry_points version="2.0" />
-  </component>
-  <component name="NullableNotNullManager">
-    <option name="myDefaultNullable" value="android.support.annotation.Nullable" />
-    <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
-    <option name="myNullables">
-      <value>
-        <list size="4">
-          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
-          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
-          <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
-          <item index="3" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
-        </list>
-      </value>
-    </option>
-    <option name="myNotNulls">
-      <value>
-        <list size="4">
-          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
-          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
-          <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
-          <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
-        </list>
-      </value>
-    </option>
-  </component>
-  <component name="ProjectLevelVcsManager" settingsEditedManually="false">
-    <OptionsSetting value="true" id="Add" />
-    <OptionsSetting value="true" id="Remove" />
-    <OptionsSetting value="true" id="Checkout" />
-    <OptionsSetting value="true" id="Update" />
-    <OptionsSetting value="true" id="Status" />
-    <OptionsSetting value="true" id="Edit" />
-    <ConfirmationsSetting value="0" id="Add" />
-    <ConfirmationsSetting value="0" id="Remove" />
-  </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/build/classes" />
-  </component>
-  <component name="ProjectType">
-    <option name="id" value="Android" />
-  </component>
-</project>

README.md

@@ -14,22 +14,23 @@ You may lose all your Moneroj if you use this App. Be cautious when spending on
 - Based off monero v0.11.0.0 with PR #2289 applied
 - currently only android32 (runs on 64-bit as well)
 - works on the testnet & mainnet
-- takes forever to sync due to 32-bit architecture
+- sync is slow due to 32-bit architecture
 - use your own daemon - it's easy
 - screen stays on until first sync is complete
 - saves wallet only on first sync and when sending transactions or editing notes
 - Monerujo means "Monero Wallet" according to https://www.reddit.com/r/Monero/comments/3exy7t/esperanto_corner/
 
 ### TODO
-- review visibility of methods/classes
 - more sensible error dialogs
 
 ### Issues / Pitfalls
+- The backups folder is now called "backups" and not ".backups" - which in most file explorers was a hidden folder
+- Wallets are now created directly in the "monerujo" folder, and not in the ".new" folder as before
+- You may want to check the old folders with a file browsing app and delete the ".new" and ".backups" folders AFTER moving neccessary wallet files to the new locations. Or simply make new backups from within Monerujo.
+- Also note, that on some devices the backups will only be visible on a PC over USB after a reboot of the device (it's an Android bug/feature)
 - Created wallets on a private testnet are unusable because the restore height is set to that
 of the "real" testnet.  After creating a new wallet, make a **new** one by recovering from the seed.
 The official monero client shows the same behaviour.
-- In rare occasions the monero core code returns a wallet address with corrupted characters -
-in these cases Monerujo crashes on purpose to make sure nothing bad happens
 
 ### HOW TO BUILD
 No need to build. Binaries are included:

app/build.gradle

@@ -3,13 +3,13 @@ apply plugin: 'witness'
 
 android {
     compileSdkVersion 25
-    buildToolsVersion "25.0.2"
+    buildToolsVersion '26.0.2'
     defaultConfig {
         applicationId "com.m2049r.xmrwallet"
         minSdkVersion 21
         targetSdkVersion 25
-        versionCode 14
-        versionName "0.8.0.1"
+        versionCode 51
+        versionName "1.2.11"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         externalNativeBuild {
             cmake {
@@ -43,28 +43,39 @@ dependencies {
     compile 'com.android.support:cardview-v7:25.4.0'
     compile 'com.android.support.constraint:constraint-layout:1.0.2'
     compile 'me.dm7.barcodescanner:zxing:1.9.8'
+
+    compile "com.squareup.okhttp3:okhttp:$rootProject.ext.okHttpVersion"
+    compile "com.jakewharton.timber:timber:$rootProject.ext.timberVersion"
+
+    testCompile "junit:junit:$rootProject.ext.junitVersion"
+    testCompile "org.mockito:mockito-all:$rootProject.ext.mockitoVersion"
+    testCompile "com.squareup.okhttp3:mockwebserver:$rootProject.ext.okHttpVersion"
+    testCompile 'org.json:json:20140107'
+    testCompile 'net.jodah:concurrentunit:0.4.2'
 }
 
 dependencyVerification {
     verify = [
-            'com.android.support:appcompat-v7:70551e62660db15b790c5275f56b9de4dd9407d1494d07c8f3dd5698f3638677',
             'com.android.support:design:3f409bf2019967ffc344cfaf11e52131fac982468a1707aaeb25bf3c52838966',
+            'com.android.support:appcompat-v7:70551e62660db15b790c5275f56b9de4dd9407d1494d07c8f3dd5698f3638677',
+            'com.android.support:transition:848270144fb180efd2bf928a00ed176dbbc5290badfd638390ffba90088df8b3',
+            'me.dm7.barcodescanner:zxing:d43973c9527c23fa8e6d338c6a2c458e373ce1ac6bcaa3bc41d11ae49116000d',
+            'me.dm7.barcodescanner:core:a5c8a704089b58029db166172ed8e55d756877d010a85a0b1c94fdc96ffb8f9a',
             'com.android.support:support-v4:ee44c481a1f4d6978568e223e8125379b52b2ececdd53450e09ebae144bd377d',
             'com.android.support:recyclerview-v7:a2fe121f9d01ed8980e97095b4a3fe9700a0aa0a7d4b0f8c594f765ad8455a0d',
             'com.android.support:cardview-v7:f3fbbe1fcfdbec7333c6a2c516c5fd511a909d1975271818e268d6fe297d8c70',
             'com.android.support.constraint:constraint-layout:b0c688cc2b7172608f8153a689d746da40f71e52d7e2fe2bfd9df2f92db77085',
-            'me.dm7.barcodescanner:zxing:d43973c9527c23fa8e6d338c6a2c458e373ce1ac6bcaa3bc41d11ae49116000d',
-            'com.android.support:support-annotations:a774272036941b4e912eb426d70c848bde7f06a3bf5fb491f75a427dc6595270',
-            'com.android.support:support-vector-drawable:077009d13882ee96f061e4bc2dbe7cce7ae1762d8297592a787ff741afbfb1f2',
             'com.android.support:animated-vector-drawable:628ab1d56a6ee4cbedf32617af8b2a1fe02964ed0628e8f898cc09ddba6e1835',
-            'com.android.support:transition:848270144fb180efd2bf928a00ed176dbbc5290badfd638390ffba90088df8b3',
-            'com.android.support:support-compat:54019c63614ce08b02d7b9605490cd2b29ba5b2505f394a9517450b5f72b30ca',
+            'com.android.support:support-vector-drawable:077009d13882ee96f061e4bc2dbe7cce7ae1762d8297592a787ff741afbfb1f2',
+            'com.android.support:support-fragment:316d35d4d2d2902057efad104a73e4bdb50bee260a7075678185b8cd71170945',
+            'com.android.support:support-core-ui:e72ae29b823889686cff6fcb948d6745c2baf6d4c2af4fdffa1ec1e42e3833a3',
             'com.android.support:support-media-compat:566a161d9cb0083ef62a53e46b71ce5b3d455b8635b1a0a4ae28d96d4b583de8',
             'com.android.support:support-core-utils:34b8437dfa95ff28d29cf57ffa3b1354a9fa9bfe4059f0fd5ce2f5e4326a1748',
-            'com.android.support:support-core-ui:e72ae29b823889686cff6fcb948d6745c2baf6d4c2af4fdffa1ec1e42e3833a3',
-            'com.android.support:support-fragment:316d35d4d2d2902057efad104a73e4bdb50bee260a7075678185b8cd71170945',
+            'com.android.support:support-compat:54019c63614ce08b02d7b9605490cd2b29ba5b2505f394a9517450b5f72b30ca',
+            'com.android.support:support-annotations:a774272036941b4e912eb426d70c848bde7f06a3bf5fb491f75a427dc6595270',
             'com.android.support.constraint:constraint-layout-solver:8c62525a9bc5cff5633a96cb9b32fffeccaf41b8841aa87fc22607070dea9b8d',
-            'me.dm7.barcodescanner:core:a5c8a704089b58029db166172ed8e55d756877d010a85a0b1c94fdc96ffb8f9a',
             'com.google.zxing:core:bba7724e02a997cec38213af77133ee8e24b0d5cf5fa7ecbc16a4fa93f11ee0d',
+            'com.squareup.okio:okio:734269c3ebc5090e3b23566db558f421f0b4027277c79ad5d176b8ec168bb850',
+            'com.squareup.okhttp3:okhttp:7265adbd6f028aade307f58569d814835cd02bc9beffb70c25f72c9de50d61c4',
     ]
 }

app/src/main/AndroidManifest.xml

@@ -3,7 +3,6 @@
     package="com.m2049r.xmrwallet">
 
     <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
@@ -14,6 +13,7 @@
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:supportsRtl="true"
+        android:name=".XmrWalletApplication"
         android:theme="@style/MyMaterialTheme">
 
         <activity

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

@@ -19,25 +19,36 @@ 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;
+import android.widget.ImageButton;
+import android.widget.LinearLayout;
 import android.widget.ProgressBar;
+import android.widget.ScrollView;
 import android.widget.TextView;
+import android.widget.Toast;
 
+import com.m2049r.xmrwallet.widget.Toolbar;
 import com.m2049r.xmrwallet.model.Wallet;
 import com.m2049r.xmrwallet.model.WalletManager;
+import com.m2049r.xmrwallet.util.Helper;
 import com.m2049r.xmrwallet.util.MoneroThreadPoolExecutor;
 
+import timber.log.Timber;
+
 public class GenerateReviewFragment extends Fragment {
-    static final String TAG = "GenerateReviewFragment";
     static final public String VIEW_TYPE_DETAILS = "details";
     static final public String VIEW_TYPE_ACCEPT = "accept";
     static final public String VIEW_TYPE_WALLET = "wallet";
 
+    ScrollView scrollview;
+
     ProgressBar pbProgress;
     TextView tvWalletName;
     TextView tvWalletPassword;
@@ -45,14 +56,18 @@ public class GenerateReviewFragment extends Fragment {
     TextView tvWalletMnemonic;
     TextView tvWalletViewKey;
     TextView tvWalletSpendKey;
+    ImageButton bCopyAddress;
+    LinearLayout llAdvancedInfo;
+    Button bAdvancedInfo;
     Button bAccept;
 
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
 
-        View view = inflater.inflate(R.layout.gen_review_fragment, container, false);
+        View view = inflater.inflate(R.layout.fragment_review, container, false);
 
+        scrollview = (ScrollView) view.findViewById(R.id.scrollview);
         pbProgress = (ProgressBar) view.findViewById(R.id.pbProgress);
         tvWalletName = (TextView) view.findViewById(R.id.tvWalletName);
         tvWalletPassword = (TextView) view.findViewById(R.id.tvWalletPassword);
@@ -60,6 +75,9 @@ public class GenerateReviewFragment extends Fragment {
         tvWalletViewKey = (TextView) view.findViewById(R.id.tvWalletViewKey);
         tvWalletSpendKey = (TextView) view.findViewById(R.id.tvWalletSpendKey);
         tvWalletMnemonic = (TextView) view.findViewById(R.id.tvWalletMnemonic);
+        bCopyAddress = (ImageButton) view.findViewById(R.id.bCopyAddress);
+        bAdvancedInfo = (Button) view.findViewById(R.id.bAdvancedInfo);
+        llAdvancedInfo = (LinearLayout) view.findViewById(R.id.llAdvancedInfo);
 
         bAccept = (Button) view.findViewById(R.id.bAccept);
 
@@ -73,6 +91,24 @@ public class GenerateReviewFragment extends Fragment {
                 acceptWallet();
             }
         });
+        view.findViewById(R.id.bCopyViewKey).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                copyViewKey();
+            }
+        });
+        bCopyAddress.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                copyAddress();
+            }
+        });
+        view.findViewById(R.id.bAdvancedInfo).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                showAdvancedInfo();
+            }
+        });
 
         showProgress();
 
@@ -85,6 +121,31 @@ public class GenerateReviewFragment extends Fragment {
         return view;
     }
 
+    void copyViewKey() {
+        Helper.clipBoardCopy(getActivity(), getString(R.string.label_copy_viewkey), tvWalletViewKey.getText().toString());
+        Toast.makeText(getActivity(), getString(R.string.message_copy_viewkey), Toast.LENGTH_SHORT).show();
+    }
+
+    void copyAddress() {
+        Helper.clipBoardCopy(getActivity(), getString(R.string.label_copy_address), tvWalletAddress.getText().toString());
+        Toast.makeText(getActivity(), getString(R.string.message_copy_address), Toast.LENGTH_SHORT).show();
+    }
+
+    void nocopy() {
+        Toast.makeText(getActivity(), getString(R.string.message_nocopy), Toast.LENGTH_SHORT).show();
+    }
+
+    void showAdvancedInfo() {
+        llAdvancedInfo.setVisibility(View.VISIBLE);
+        bAdvancedInfo.setVisibility(View.GONE);
+        scrollview.post(new Runnable() {
+            @Override
+            public void run() {
+                scrollview.fullScroll(ScrollView.FOCUS_DOWN);
+            }
+        });
+    }
+
     String type;
 
     private void acceptWallet() {
@@ -130,7 +191,7 @@ public class GenerateReviewFragment extends Fragment {
             address = wallet.getAddress();
             seed = wallet.getSeed();
             viewKey = wallet.getSecretViewKey();
-            spendKey = isWatchOnly ? getActivity().getString(R.string.watchonly_label) : wallet.getSecretSpendKey();
+            spendKey = isWatchOnly ? getActivity().getString(R.string.label_watchonly) : wallet.getSecretSpendKey();
             isWatchOnly = wallet.isWatchOnly();
             if (closeWallet) wallet.close();
             return true;
@@ -139,6 +200,7 @@ public class GenerateReviewFragment extends Fragment {
         @Override
         protected void onPostExecute(Boolean result) {
             super.onPostExecute(result);
+            if (!isAdded()) return; // never mind
             tvWalletName.setText(name);
             if (result) {
                 if (type.equals(GenerateReviewFragment.VIEW_TYPE_ACCEPT)) {
@@ -150,9 +212,14 @@ public class GenerateReviewFragment extends Fragment {
                 tvWalletMnemonic.setText(seed);
                 tvWalletViewKey.setText(viewKey);
                 tvWalletSpendKey.setText(spendKey);
+                bAdvancedInfo.setVisibility(View.VISIBLE);
+                bCopyAddress.setEnabled(true);
+                bCopyAddress.setImageResource(R.drawable.ic_content_copy_black_24dp);
+                activityCallback.setTitle(name, getString(R.string.details_title));
+                activityCallback.setToolbarButton(
+                        GenerateReviewFragment.VIEW_TYPE_ACCEPT.equals(type) ? Toolbar.BUTTON_NONE : Toolbar.BUTTON_BACK);
             } else {
-                // TODO show proper error message
-                // TODO end the fragment
+                // TODO show proper error message and/or end the fragment?
                 tvWalletAddress.setText(status.toString());
                 tvWalletMnemonic.setText(status.toString());
                 tvWalletViewKey.setText(status.toString());
@@ -162,41 +229,70 @@ public class GenerateReviewFragment extends Fragment {
         }
     }
 
-    GenerateReviewFragment.Listener acceptCallback = null;
-    GenerateReviewFragment.ListenerWithWallet walletCallback = null;
+    Listener activityCallback = null;
+    AcceptListener acceptCallback = null;
+    ListenerWithWallet walletCallback = null;
 
     public interface Listener {
+        void setTitle(String title, String subtitle);
+
+        void setToolbarButton(int type);
+    }
+
+    public interface AcceptListener {
         void onAccept(String name, String password);
     }
 
     public interface ListenerWithWallet {
         Wallet getWallet();
-
     }
 
     @Override
     public void onAttach(Context context) {
         super.onAttach(context);
-        if (context instanceof GenerateReviewFragment.Listener) {
-            this.acceptCallback = (GenerateReviewFragment.Listener) context;
-        } else if (context instanceof GenerateReviewFragment.ListenerWithWallet) {
-            this.walletCallback = (GenerateReviewFragment.ListenerWithWallet) context;
-        } else {
-            throw new ClassCastException(context.toString()
-                    + " must implement Listener");
+        if (context instanceof Listener) {
+            this.activityCallback = (Listener) context;
+        }
+        if (context instanceof AcceptListener) {
+            this.acceptCallback = (AcceptListener) context;
+        }
+        if (context instanceof ListenerWithWallet) {
+            this.walletCallback = (ListenerWithWallet) context;
         }
     }
 
+    @Override
+    public void onResume() {
+        super.onResume();
+        Timber.d("onResume()");
+        String name = tvWalletName.getText().toString();
+        if (name.isEmpty()) name = null;
+        activityCallback.setTitle(name, getString(R.string.details_title));
+        activityCallback.setToolbarButton(
+                GenerateReviewFragment.VIEW_TYPE_ACCEPT.equals(type) ? Toolbar.BUTTON_NONE : Toolbar.BUTTON_BACK);
+    }
+
     public void showProgress() {
-        pbProgress.setIndeterminate(true);
         pbProgress.setVisibility(View.VISIBLE);
     }
 
     public void hideProgress() {
-        pbProgress.setVisibility(View.INVISIBLE);
+        pbProgress.setVisibility(View.GONE);
     }
 
     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);
+        super.onCreateOptionsMenu(menu, inflater);
+    }
 }

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

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2017 m2049r
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.m2049r.xmrwallet;
+
+public interface OnBackPressedListener {
+    boolean onBackPressed();
+}

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

@@ -20,7 +20,6 @@ import android.content.Context;
 import android.os.Bundle;
 import android.os.Handler;
 import android.support.v4.app.Fragment;
-import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -28,24 +27,23 @@ import android.widget.Toast;
 
 import com.google.zxing.BarcodeFormat;
 import com.google.zxing.Result;
-import com.m2049r.xmrwallet.util.BarcodeData;
 
 import me.dm7.barcodescanner.zxing.ZXingScannerView;
+import timber.log.Timber;
 
 public class ScannerFragment extends Fragment implements ZXingScannerView.ResultHandler {
-    static final String TAG = "ScannerFragment";
 
-    Listener activityCallback;
+    private OnScannedListener onScannedListener;
 
-    public interface Listener {
-        boolean onAddressScanned(String uri);
+    public interface OnScannedListener {
+        boolean onScanned(String uri);
     }
 
     private ZXingScannerView mScannerView;
 
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
-        Log.d(TAG, "onCreateView");
+        Timber.d("onCreateView");
         mScannerView = new ZXingScannerView(getActivity());
         return mScannerView;
     }
@@ -53,7 +51,7 @@ public class ScannerFragment extends Fragment implements ZXingScannerView.Result
     @Override
     public void onResume() {
         super.onResume();
-        Log.d(TAG, "onResume");
+        Timber.d("onResume");
         mScannerView.setResultHandler(this);
         mScannerView.startCamera();
     }
@@ -64,10 +62,8 @@ public class ScannerFragment extends Fragment implements ZXingScannerView.Result
 
     @Override
     public void handleResult(Result rawResult) {
-        //Log.d(TAG, rawResult.getBarcodeFormat().toString() + "/" + rawResult.getText());
-        if ((rawResult.getBarcodeFormat() == BarcodeFormat.QR_CODE) &&
-                (rawResult.getText().startsWith(QR_SCHEME))) {
-            if (activityCallback.onAddressScanned(rawResult.getText())) {
+        if ((rawResult.getBarcodeFormat() == BarcodeFormat.QR_CODE)) {
+            if (onScannedListener.onScanned(rawResult.getText())) {
                 return;
             } else {
                 Toast.makeText(getActivity(), getString(R.string.send_qr_address_invalid), Toast.LENGTH_SHORT).show();
@@ -93,7 +89,7 @@ public class ScannerFragment extends Fragment implements ZXingScannerView.Result
 
     @Override
     public void onPause() {
-        Log.d(TAG, "onPause");
+        Timber.d("onPause");
         mScannerView.stopCamera();
         super.onPause();
     }
@@ -101,12 +97,11 @@ public class ScannerFragment extends Fragment implements ZXingScannerView.Result
     @Override
     public void onAttach(Context context) {
         super.onAttach(context);
-        //Log.d(TAG, "attaching scan");
-        if (context instanceof Listener) {
-            this.activityCallback = (Listener) context;
+        if (context instanceof OnScannedListener) {
+            this.onScannedListener = (OnScannedListener) context;
         } else {
             throw new ClassCastException(context.toString()
                     + " must implement Listener");
         }
     }
-}
+}

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

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2017 m2049r
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.m2049r.xmrwallet;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v7.app.AppCompatActivity;
+
+import static android.view.WindowManager.LayoutParams;
+
+public abstract class SecureActivity extends AppCompatActivity {
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // set FLAG_SECURE to prevent screenshots in Release Mode
+        if (!BuildConfig.DEBUG) {
+            getWindow().setFlags(LayoutParams.FLAG_SECURE, LayoutParams.FLAG_SECURE);
+        }
+    }
+}

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

@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2017 m2049r
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.m2049r.xmrwallet;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.m2049r.xmrwallet.data.BarcodeData;
+import com.m2049r.xmrwallet.widget.ExchangeTextView;
+import com.m2049r.xmrwallet.model.Wallet;
+import com.m2049r.xmrwallet.util.Helper;
+import com.m2049r.xmrwallet.widget.NumberPadView;
+
+import timber.log.Timber;
+
+public class SendAmountWizardFragment extends SendWizardFragment {
+
+    public static SendAmountWizardFragment newInstance(Listener listener) {
+        SendAmountWizardFragment instance = new SendAmountWizardFragment();
+        instance.setSendListener(listener);
+        return instance;
+    }
+
+    Listener sendListener;
+
+    public SendAmountWizardFragment setSendListener(Listener listener) {
+        this.sendListener = listener;
+        return this;
+    }
+
+    interface Listener {
+        SendFragment.Listener getActivityCallback();
+
+        void setAmount(final long amount);
+
+        BarcodeData popBarcodeData();
+    }
+
+    private TextView tvFunds;
+    private ExchangeTextView evAmount;
+    //private Button bSendAll;
+    private NumberPadView numberPad;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+
+        Timber.d("onCreateView() %s", (String.valueOf(savedInstanceState)));
+
+        sendListener = (Listener) getParentFragment();
+
+        View view = inflater.inflate(R.layout.fragment_send_amount, container, false);
+
+        tvFunds = (TextView) view.findViewById(R.id.tvFunds);
+
+        evAmount = (ExchangeTextView) view.findViewById(R.id.evAmount);
+        numberPad = (NumberPadView) view.findViewById(R.id.numberPad);
+        numberPad.setListener(evAmount);
+
+        /*
+        bSendAll = (Button) view.findViewById(R.id.bSendAll);
+        bSendAll.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                // TODO: send all - figure out how to display this
+            }
+        });
+*/
+
+        Helper.hideKeyboard(getActivity());
+
+        return view;
+    }
+
+
+    @Override
+    public boolean onValidateFields() {
+        if (!evAmount.validate(maxFunds)) {
+            return false;
+        }
+
+        if (sendListener != null) {
+            String xmr = evAmount.getAmount();
+            if (xmr != null) {
+                sendListener.setAmount(Wallet.getAmountFromString(xmr));
+            } else {
+                sendListener.setAmount(0L);
+            }
+        }
+        return true;
+    }
+
+    double maxFunds = 0;
+
+    @Override
+    public void onResumeFragment() {
+        super.onResumeFragment();
+        Timber.d("onResumeFragment()");
+        Helper.hideKeyboard(getActivity());
+        final long funds = getTotalFunds();
+        maxFunds = 1.0 * funds / 1000000000000L;
+        tvFunds.setText(getString(R.string.send_available,
+                Wallet.getDisplayAmount(funds)));
+        // getAmount is null if exchange is in progress
+        if ((evAmount.getAmount() != null) && evAmount.getAmount().isEmpty()) {
+            final BarcodeData data = sendListener.popBarcodeData();
+            if ((data != null) && (data.amount != null)) {
+                evAmount.setAmount(data.amount);
+            }
+        }
+    }
+
+    long getTotalFunds() {
+        return sendListener.getActivityCallback().getTotalFunds();
+    }
+}

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

@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2017 m2049r
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.m2049r.xmrwallet;
+
+import android.os.Bundle;
+import android.text.InputType;
+import android.view.KeyEvent;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.inputmethod.EditorInfo;
+import android.widget.EditText;
+import android.widget.Spinner;
+import android.widget.TextView;
+
+import com.m2049r.xmrwallet.model.PendingTransaction;
+import com.m2049r.xmrwallet.util.Helper;
+
+import timber.log.Timber;
+
+public class SendSettingsWizardFragment extends SendWizardFragment {
+
+    public static SendSettingsWizardFragment newInstance(Listener listener) {
+        SendSettingsWizardFragment instance = new SendSettingsWizardFragment();
+        instance.setSendListener(listener);
+        return instance;
+    }
+
+    Listener sendListener;
+
+    public SendSettingsWizardFragment setSendListener(Listener listener) {
+        this.sendListener = listener;
+        return this;
+    }
+
+    interface Listener {
+
+        void setPriority(final PendingTransaction.Priority priority);
+
+        void setMixin(final int mixin);
+
+        void setNotes(final String notes);
+    }
+
+    final static int Mixins[] = {4, 7, 12, 25}; // must match the layout XML
+    final static PendingTransaction.Priority Priorities[] =
+            {PendingTransaction.Priority.Priority_Default,
+                    PendingTransaction.Priority.Priority_Low,
+                    PendingTransaction.Priority.Priority_Medium,
+                    PendingTransaction.Priority.Priority_High}; // must match the layout XML
+
+    private Spinner sMixin;
+    private Spinner sPriority;
+    private EditText etNotes;
+    private EditText etDummy;
+
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+
+        Timber.d("onCreateView() %s", (String.valueOf(savedInstanceState)));
+
+        View view = inflater.inflate(
+                R.layout.fragment_send_settings, container, false);
+
+        sMixin = (Spinner) view.findViewById(R.id.sMixin);
+        sPriority = (Spinner) view.findViewById(R.id.sPriority);
+
+        etNotes = (EditText) view.findViewById(R.id.etNotes);
+        etNotes.setRawInputType(InputType.TYPE_CLASS_TEXT);
+        etNotes.setOnEditorActionListener(new TextView.OnEditorActionListener() {
+            public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
+                if ((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) || (actionId == EditorInfo.IME_ACTION_DONE)) {
+                    etDummy.requestFocus();
+                    Helper.hideKeyboard(getActivity());
+                    return true;
+                }
+                return false;
+            }
+        });
+
+        etDummy = (EditText) view.findViewById(R.id.etDummy);
+        etDummy.setRawInputType(InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
+
+        return view;
+    }
+
+    @Override
+    public boolean onValidateFields() {
+        if (sendListener != null) {
+            int mixin = Mixins[sMixin.getSelectedItemPosition()];
+            int priorityIndex = sPriority.getSelectedItemPosition();
+            PendingTransaction.Priority priority = Priorities[priorityIndex];
+            sendListener.setPriority(priority);
+            sendListener.setMixin(mixin);
+            String notes = etNotes.getText().toString();
+            sendListener.setNotes(notes);
+        }
+        return true;
+    }
+
+    @Override
+    public void onResumeFragment() {
+        super.onResumeFragment();
+        Timber.d("onResumeFragment()");
+        Helper.hideKeyboard(getActivity());
+        etDummy.requestFocus();
+    }
+}

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

@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2017 m2049r
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.m2049r.xmrwallet;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageButton;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.m2049r.xmrwallet.model.Wallet;
+import com.m2049r.xmrwallet.util.Helper;
+import com.m2049r.xmrwallet.data.PendingTx;
+import com.m2049r.xmrwallet.data.TxData;
+
+import timber.log.Timber;
+
+public class SendSuccessWizardFragment extends SendWizardFragment {
+
+    public static SendSuccessWizardFragment newInstance(Listener listener) {
+        SendSuccessWizardFragment instance = new SendSuccessWizardFragment();
+        instance.setSendListener(listener);
+        return instance;
+    }
+
+    Listener sendListener;
+
+    public SendSuccessWizardFragment setSendListener(Listener listener) {
+        this.sendListener = listener;
+        return this;
+    }
+
+    interface Listener {
+        String getNotes();
+
+        TxData getTxData();
+
+        PendingTx getCommittedTx();
+
+        void enableDone();
+    }
+
+    ImageButton bCopyAddress;
+    private TextView tvTxId;
+    private TextView tvTxAddress;
+    private TextView tvTxPaymentId;
+    private TextView tvTxNotes;
+    private TextView tvTxAmount;
+    private TextView tvTxFee;
+    private TextView tvTxTotal;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+
+        Timber.d("onCreateView() %s", (String.valueOf(savedInstanceState)));
+
+        View view = inflater.inflate(
+                R.layout.fragment_send_success, container, false);
+
+        bCopyAddress = (ImageButton) view.findViewById(R.id.bCopyAddress);
+        bCopyAddress.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                copyAddress();
+            }
+        });
+
+        tvTxId = (TextView) view.findViewById(R.id.tvTxId);
+        tvTxAddress = (TextView) view.findViewById(R.id.tvTxAddress);
+        tvTxPaymentId = (TextView) view.findViewById(R.id.tvTxPaymentId);
+        tvTxNotes = (TextView) view.findViewById(R.id.tvTxNotes);
+        tvTxAmount = ((TextView) view.findViewById(R.id.tvTxAmount));
+        tvTxFee = (TextView) view.findViewById(R.id.tvTxFee);
+        tvTxTotal = (TextView) view.findViewById(R.id.tvTxTotal);
+
+        return view;
+    }
+
+    @Override
+    public boolean onValidateFields() {
+        return true;
+    }
+
+    @Override
+    public void onPauseFragment() {
+        super.onPauseFragment();
+    }
+
+    @Override
+    public void onResumeFragment() {
+        super.onResumeFragment();
+        Timber.d("onResumeFragment()");
+        Helper.hideKeyboard(getActivity());
+
+        final TxData txData = sendListener.getTxData();
+        tvTxAddress.setText(txData.getDestinationAddress());
+        String paymentId = txData.getPaymentId();
+        if ((paymentId != null) && (!paymentId.isEmpty())) {
+            tvTxPaymentId.setText(txData.getPaymentId());
+        } else {
+            tvTxPaymentId.setText("-");
+        }
+        String notes = sendListener.getNotes();
+        if ((notes != null) && (!notes.isEmpty())) {
+            tvTxNotes.setText(sendListener.getNotes());
+        } else {
+            tvTxNotes.setText("-");
+        }
+
+        final PendingTx committedTx = sendListener.getCommittedTx();
+        if (committedTx != null) {
+            tvTxId.setText(committedTx.txId);
+            bCopyAddress.setEnabled(true);
+            bCopyAddress.setImageResource(R.drawable.ic_content_copy_black_24dp);
+            tvTxAmount.setText(Wallet.getDisplayAmount(committedTx.amount));
+            tvTxFee.setText(Wallet.getDisplayAmount(committedTx.fee));
+            //tvTxDust.setText(Wallet.getDisplayAmount(pendingTransaction.getDust()));
+            tvTxTotal.setText(Wallet.getDisplayAmount(
+                    committedTx.fee + committedTx.amount));
+        }
+        sendListener.enableDone();
+    }
+
+    void copyAddress() {
+        Helper.clipBoardCopy(getActivity(), getString(R.string.label_send_txid), tvTxId.getText().toString());
+        Toast.makeText(getActivity(), getString(R.string.message_copy_address), Toast.LENGTH_SHORT).show();
+    }
+
+}

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

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2017 m2049r
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.m2049r.xmrwallet;
+
+import android.support.v4.app.Fragment;
+
+import com.m2049r.xmrwallet.layout.SpendViewPager;
+
+abstract public class SendWizardFragment extends Fragment
+        implements SpendViewPager.OnValidateFieldsListener {
+
+    @Override
+    public boolean onValidateFields() {
+        return true;
+    }
+
+    public void onPauseFragment() {
+    }
+
+    public void onResumeFragment() {
+    }
+}

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

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2017 m2049r et al.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.m2049r.xmrwallet;
+
+
+import android.app.Application;
+
+import timber.log.Timber;
+
+public class XmrWalletApplication extends Application {
+    @Override
+    public void onCreate() {
+        super.onCreate();
+
+        if (BuildConfig.DEBUG) {
+            Timber.plant(new Timber.DebugTree());
+        }
+    }
+}