add our stagenet server to defaults (#321)

* sweep layout tweak

* reduce label to fit

* change sweep message

.circleci/config.yml

@@ -0,0 +1,27 @@
+version: 2
+jobs:
+  build:
+    working_directory: ~/code
+    docker:
+      - image: bitriseio/android-ndk
+    environment:
+      JVM_OPTS: -Xmx3200m
+    steps:
+      - checkout
+      - restore_cache:
+          key: jars-{{ checksum "build.gradle" }}-{{ checksum  "app/build.gradle" }}
+      - run:
+          name: Download Dependencies
+          command: ./gradlew androidDependencies
+      - save_cache:
+          paths:
+            - ~/.gradle
+          key: jars-{{ checksum "build.gradle" }}-{{ checksum  "app/build.gradle" }}
+      - run:
+          name: Run Tests
+          command: ./gradlew test
+      - store_artifacts:
+          path: app/build/reports
+          destination: reports
+      - store_test_results:
+          path: app/build/test-results

.gitignore

@@ -1,9 +1,9 @@
 .gradle
 /build
 *.iml
-/.idea/libraries
-/.idea/workspace.xml
+/.idea
 /local.properties
 /captures
 .externalNativeBuild
 .DS_Store
+/app/release

.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>

README.md

@@ -1,33 +1,42 @@
 # Monerujo
-Another Android Monero Wallet
+Another Android Monero Wallet for Monero
+	**(not
+    Monero Classic,
+    Monero-Classic,
+    Monero Zero,
+    Monero Original,
+    Monero C,
+    Monero V)**
 
 ### QUICKSTART
 - Download the APK for the most current release [here](https://github.com/m2049r/xmrwallet/releases) and install it
+- Alternatively add our F-Droid repo https://f-droid.monerujo.io/fdroid/repo with fingerpint ```A8 2C 68 E1 4A F0 AA 6A 2E C2 0E 6B 27 2E FF 25 E5 A0 38 F3 F6 58 84 31 6E 0F 5E 0D 91 E7 B7 13``` to your F-Droid client
 - Run the App and select "Generate Wallet" to create a new wallet or recover a wallet
 - Advanced users can copy over synced wallet files (all files) onto sdcard in directory Monerujo (created first time App is started)
 - See the [FAQ](doc/FAQ.md)
 
+## Translations
+Help us translate Monerujo! You can find instructions [On Taiga](https://taiga.getmonero.org/project/erciccione-monero-localization/wiki/monerujo), and if you need help/support, open an issue or contact the Localization Workgroup. You can find us on the freenode channel `#monero-translations`, also relayed on [MatterMost](https://mattermost.getmonero.org/monero/channels/monero-translations), and matrix/riot.
+
 ### Disclaimer
 You may lose all your Moneroj if you use this App. Be cautious when spending on the mainnet.
 
 ### Random Notes
-- Based off monero v0.11.0.0 with PR #2289 applied
+- Based off monero v0.11.1.0
 - currently only android32 (runs on 64-bit as well)
 - works on the testnet & mainnet
 - 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
+- see taiga.getmonero.org & issues on github
 
 ### 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.
+- Users of Zenfone MAX & Zenfone 2 Laser (possibly others) **MUST** use the armeabi-v7a APK as the arm64-v8a build uses hardware AES
+functionality these models don't have.
+- You should backup your wallet files in the "monerujo" folder periodically.
 - 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.
@@ -37,8 +46,8 @@ The official monero client shows the same behaviour.
 No need to build. Binaries are included:
 
 - openssl-1.0.2l
-- monero-v0.11.0.0 + pull requests #2289
-- boost_1_64_0
+- monero-v0.12
+- boost_1_58_0
 
 If you want to build them yourself (recommended) check out [the instructions](doc/BUILDING-external-libs.md)
 

app/CMakeLists.txt

@@ -60,9 +60,13 @@ set_target_properties(boost_wserialization PROPERTIES IMPORTED_LOCATION
     ${EXTERNAL_LIBS_DIR}/boost/lib/${ANDROID_ABI}/libboost_wserialization.a)
 
 #############
-# Monero set(libs_to_merge wallet cryptonote_core cryptonote_basic mnemonics common cncrypto ringct)
+# Monero
 #############
 
+add_library(wallet_api STATIC IMPORTED)
+set_target_properties(wallet_api PROPERTIES IMPORTED_LOCATION
+    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libwallet_api.a)
+
 add_library(wallet STATIC IMPORTED)
 set_target_properties(wallet PROPERTIES IMPORTED_LOCATION
     ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libwallet.a)
@@ -91,11 +95,9 @@ add_library(ringct STATIC IMPORTED)
 set_target_properties(ringct PROPERTIES IMPORTED_LOCATION
     ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libringct.a)
 
-#####
-
-add_library(p2p STATIC IMPORTED)
-set_target_properties(p2p PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libp2p.a)
+add_library(ringct_basic STATIC IMPORTED)
+set_target_properties(ringct_basic PROPERTIES IMPORTED_LOCATION
+    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libringct_basic.a)
 
 add_library(blockchain_db STATIC IMPORTED)
 set_target_properties(blockchain_db PROPERTIES IMPORTED_LOCATION
@@ -113,7 +115,6 @@ add_library(unbound STATIC IMPORTED)
 set_target_properties(unbound PROPERTIES IMPORTED_LOCATION
     ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libunbound.a)
 
-####
 add_library(epee STATIC IMPORTED)
 set_target_properties(epee PROPERTIES IMPORTED_LOCATION
     ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libepee.a)
@@ -122,9 +123,21 @@ add_library(blocks STATIC IMPORTED)
 set_target_properties(blocks PROPERTIES IMPORTED_LOCATION
     ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libblocks.a)
 
-add_library(miniupnpc STATIC IMPORTED)
-set_target_properties(miniupnpc PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libminiupnpc.a)
+add_library(checkpoints STATIC IMPORTED)
+set_target_properties(checkpoints PROPERTIES IMPORTED_LOCATION
+    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libcheckpoints.a)
+
+add_library(device STATIC IMPORTED)
+set_target_properties(device PROPERTIES IMPORTED_LOCATION
+    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libdevice.a)
+
+add_library(multisig STATIC IMPORTED)
+set_target_properties(multisig PROPERTIES IMPORTED_LOCATION
+    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libmultisig.a)
+
+add_library(version STATIC IMPORTED)
+set_target_properties(version PROPERTIES IMPORTED_LOCATION
+    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libversion.a)
 
 #############
 # System
@@ -137,23 +150,26 @@ include_directories( ${EXTERNAL_LIBS_DIR}/monero/include )
 message(STATUS EXTERNAL_LIBS_DIR :  ${EXTERNAL_LIBS_DIR})
 
 target_link_libraries(  monerujo
+
+                        wallet_api
                         wallet
                         cryptonote_core
                         cryptonote_basic
                         mnemonics
                         ringct
+                        ringct_basic
                         common
                         cncrypto
-
                         blockchain_db
                         lmdb
                         easylogging
                         unbound
-                        p2p
-
                         epee
                         blocks
-                        miniupnpc
+                        checkpoints
+                        device
+                        multisig
+                        version
 
                         boost_chrono
                         boost_date_time

app/build.gradle

@@ -1,15 +1,14 @@
 apply plugin: 'com.android.application'
-apply plugin: 'witness'
 
 android {
     compileSdkVersion 25
-    buildToolsVersion "25.0.2"
+    buildToolsVersion '27.0.3'
     defaultConfig {
         applicationId "com.m2049r.xmrwallet"
         minSdkVersion 21
         targetSdkVersion 25
-        versionCode 23
-        versionName "1.0"
+        versionCode 97
+        versionName "1.5.7 'Maximum Nacho'"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         externalNativeBuild {
             cmake {
@@ -17,9 +16,6 @@ android {
                 arguments '-DANDROID_STL=c++_shared'
             }
         }
-        ndk {
-            abiFilters 'armeabi-v7a'
-        }
     }
 
     buildTypes {
@@ -27,44 +23,59 @@ android {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
+        debug {
+            applicationIdSuffix ".debug"
+        }
     }
     externalNativeBuild {
         cmake {
             path "CMakeLists.txt"
         }
     }
+
+    splits {
+        abi {
+            enable true
+            reset()
+            include 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
+            universalApk true
+        }
+    }
+
+    // Map for the version code that gives each ABI a value.
+    def abiCodes = ['armeabi-v7a': 1, 'arm64-v8a': 2, 'x86': 3, 'x86_64': 4]
+
+    // APKs for the same app that all have the same version information.
+    android.applicationVariants.all { variant ->
+        // Assigns a different version code for each output APK.
+        variant.outputs.all {
+            output ->
+                def abiName = output.getFilter(com.android.build.OutputFile.ABI)
+                output.versionCodeOverride = abiCodes.get(abiName, 0) + 10 * variant.versionCode
+
+                if (abiName == null) abiName = "universal"
+                def v = "${variant.versionName}".replaceFirst(" .*\$", "").replace(".", "x")
+                outputFileName = "$rootProject.ext.apkName-" + v + "_" + abiName + ".apk"
+        }
+    }
 }
 
 dependencies {
-    compile 'com.android.support:appcompat-v7:25.4.0'
-    compile 'com.android.support:design:25.4.0'
-    compile 'com.android.support:support-v4:25.4.0'
-    compile 'com.android.support:recyclerview-v7:25.4.0'
-    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'
-}
+    implementation 'com.android.support:appcompat-v7:25.4.0'
+    implementation 'com.android.support:design:25.4.0'
+    implementation 'com.android.support:support-v4:25.4.0'
+    implementation 'com.android.support:recyclerview-v7:25.4.0'
+    implementation 'com.android.support:cardview-v7:25.4.0'
+    implementation 'me.dm7.barcodescanner:zxing:1.9.8'
 
-dependencyVerification {
-    verify = [
-            'com.android.support:appcompat-v7:70551e62660db15b790c5275f56b9de4dd9407d1494d07c8f3dd5698f3638677',
-            'com.android.support:design:3f409bf2019967ffc344cfaf11e52131fac982468a1707aaeb25bf3c52838966',
-            '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-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.constraint:constraint-layout-solver:8c62525a9bc5cff5633a96cb9b32fffeccaf41b8841aa87fc22607070dea9b8d',
-            'me.dm7.barcodescanner:core:a5c8a704089b58029db166172ed8e55d756877d010a85a0b1c94fdc96ffb8f9a',
-            'com.google.zxing:core:bba7724e02a997cec38213af77133ee8e24b0d5cf5fa7ecbc16a4fa93f11ee0d',
-    ]
+    implementation "com.squareup.okhttp3:okhttp:$rootProject.ext.okHttpVersion"
+    implementation "com.jakewharton.timber:timber:$rootProject.ext.timberVersion"
+
+    implementation 'com.nulab-inc:zxcvbn:1.2.3'
+
+    testImplementation "junit:junit:$rootProject.ext.junitVersion"
+    testImplementation "org.mockito:mockito-all:$rootProject.ext.mockitoVersion"
+    testImplementation "com.squareup.okhttp3:mockwebserver:$rootProject.ext.okHttpVersion"
+    testImplementation 'org.json:json:20140107'
+    testImplementation 'net.jodah:concurrentunit:0.4.2'
 }

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

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name" translatable="false">monerujo - Debug</string>
+</resources>

app/src/main/AndroidManifest.xml

@@ -7,12 +7,14 @@
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
     <uses-permission android:name="android.permission.CAMERA" />
+    <uses-permission android:name="android.permission.USE_FINGERPRINT" />
 
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:supportsRtl="true"
+        android:name=".XmrWalletApplication"
         android:theme="@style/MyMaterialTheme">
 
         <activity

app/src/main/cpp/monerujo.h

@@ -18,6 +18,7 @@
 #define XMRWALLET_WALLET_LIB_H
 
 #include <jni.h>
+
 /*
 #include <android/log.h>
 
@@ -27,13 +28,13 @@
 #define  LOGE(...)  __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__)
 */
 
-jfieldID getHandleField(JNIEnv *env, jobject obj, const char* fieldName = "handle") {
+jfieldID getHandleField(JNIEnv *env, jobject obj, const char *fieldName = "handle") {
     jclass c = env->GetObjectClass(obj);
     return env->GetFieldID(c, fieldName, "J"); // of type long
 }
 
-template <typename T>
-T *getHandle(JNIEnv *env, jobject obj, const char* fieldName = "handle") {
+template<typename T>
+T *getHandle(JNIEnv *env, jobject obj, const char *fieldName = "handle") {
     jlong handle = env->GetLongField(obj, getHandleField(env, obj, fieldName));
     return reinterpret_cast<T *>(handle);
 }
@@ -42,10 +43,35 @@ void setHandleFromLong(JNIEnv *env, jobject obj, jlong handle) {
     env->SetLongField(obj, getHandleField(env, obj), handle);
 }
 
-template <typename T>
+template<typename T>
 void setHandle(JNIEnv *env, jobject obj, T *t) {
     jlong handle = reinterpret_cast<jlong>(t);
     setHandleFromLong(env, obj, handle);
 }
 
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+// from monero-core crypto/hash-ops.h - avoid #including monero code here
+enum {
+    HASH_SIZE = 32,
+    HASH_DATA_AREA = 136
+};
+
+void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int prehashed);
+
+inline void slow_hash(const void *data, const size_t length, char *hash) {
+    cn_slow_hash(data, length, hash, 0 /* variant */, 0/*prehashed*/);
+}
+
+inline void slow_hash_broken(const void *data, char *hash, int variant) {
+    cn_slow_hash(data, 200 /*sizeof(union hash_state)*/, hash, variant, 1 /*prehashed*/);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif //XMRWALLET_WALLET_LIB_H

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 qrCode);
     }
 
     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;
     }
@@ -53,21 +51,15 @@ 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();
     }
 
-    static final String QR_SCHEME = "monero:";
-    static final String QR_PAYMENTID = "tx_payment_id";
-    static final String QR_AMOUNT = "tx_amount";
-
     @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 +85,7 @@ 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 +93,11 @@ 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 +1,39 @@
+/*
+ * 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 com.m2049r.xmrwallet.util.Helper;
+
+import java.io.File;
+
+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);
+        }
+    }
+}