new version 1.5.10

* Portuguese

* update italian

* update german

.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

@@ -1,8 +1,7 @@
 .gradle
 /build
 *.iml
-/.idea/libraries
-/.idea/workspace.xml
+/.idea
 /local.properties
 /captures
 .externalNativeBuild

README.md

@@ -1,12 +1,23 @@
 # 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.
 
@@ -23,6 +34,8 @@ You may lose all your Moneroj if you use this App. Be cautious when spending on
 - see taiga.getmonero.org & issues on github
 
 ### Issues / Pitfalls
+- 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
@@ -33,8 +46,8 @@ The official monero client shows the same behaviour.
 No need to build. Binaries are included:
 
 - openssl-1.0.2l
-- monero-v0.11.1.0
-- 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 '26.0.2'
+    buildToolsVersion '27.0.3'
     defaultConfig {
         applicationId "com.m2049r.xmrwallet"
         minSdkVersion 21
         targetSdkVersion 25
-        versionCode 65
-        versionName "1.3.5 'Satoshis Dream'"
+        versionCode 100
+        versionName "1.5.10 '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 {
@@ -27,55 +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'
 
-    compile "com.squareup.okhttp3:okhttp:$rootProject.ext.okHttpVersion"
-    compile "com.jakewharton.timber:timber:$rootProject.ext.timberVersion"
+    implementation "com.squareup.okhttp3:okhttp:$rootProject.ext.okHttpVersion"
+    implementation "com.jakewharton.timber:timber:$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: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',
-            'com.android.support:animated-vector-drawable:628ab1d56a6ee4cbedf32617af8b2a1fe02964ed0628e8f898cc09ddba6e1835',
-            '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-compat:54019c63614ce08b02d7b9605490cd2b29ba5b2505f394a9517450b5f72b30ca',
-            'com.android.support:support-annotations:a774272036941b4e912eb426d70c848bde7f06a3bf5fb491f75a427dc6595270',
-            'com.android.support.constraint:constraint-layout-solver:8c62525a9bc5cff5633a96cb9b32fffeccaf41b8841aa87fc22607070dea9b8d',
-            'com.google.zxing:core:bba7724e02a997cec38213af77133ee8e24b0d5cf5fa7ecbc16a4fa93f11ee0d',
-            'com.squareup.okio:okio:734269c3ebc5090e3b23566db558f421f0b4027277c79ad5d176b8ec168bb850',
-            'com.squareup.okhttp3:okhttp:7265adbd6f028aade307f58569d814835cd02bc9beffb70c25f72c9de50d61c4',
-    ]
+    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

@@ -7,6 +7,7 @@
     <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"

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/ReceiveFragment.java

@@ -62,6 +62,8 @@ import timber.log.Timber;
 public class ReceiveFragment extends Fragment {
 
     private ProgressBar pbProgress;
+    private View llAddress;
+    private TextView tvAddressLabel;
     private TextView tvAddress;
     private TextInputLayout etPaymentId;
     private ExchangeView evAmount;
@@ -71,6 +73,10 @@ public class ReceiveFragment extends Fragment {
     private ImageView qrCodeFull;
     private EditText etDummy;
     private ImageButton bCopyAddress;
+    private Button bSubaddress;
+
+    private Wallet wallet = null;
+    private boolean isMyWallet = false;
 
     public interface Listener {
         void setToolbarButton(int type);
@@ -87,6 +93,8 @@ public class ReceiveFragment extends Fragment {
         View view = inflater.inflate(R.layout.fragment_receive, container, false);
 
         pbProgress = (ProgressBar) view.findViewById(R.id.pbProgress);
+        llAddress = view.findViewById(R.id.llAddress);
+        tvAddressLabel = (TextView) view.findViewById(R.id.tvAddressLabel);
         tvAddress = (TextView) view.findViewById(R.id.tvAddress);
         etPaymentId = (TextInputLayout) view.findViewById(R.id.etPaymentId);
         evAmount = (ExchangeView) view.findViewById(R.id.evAmount);
@@ -96,6 +104,7 @@ public class ReceiveFragment extends Fragment {
         qrCodeFull = (ImageView) view.findViewById(R.id.qrCodeFull);
         etDummy = (EditText) view.findViewById(R.id.etDummy);
         bCopyAddress = (ImageButton) view.findViewById(R.id.bCopyAddress);
+        bSubaddress = (Button) view.findViewById(R.id.bSubaddress);
 
         etPaymentId.getEditText().setRawInputType(InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
         etDummy.setRawInputType(InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
@@ -106,7 +115,7 @@ public class ReceiveFragment extends Fragment {
                 copyAddress();
             }
         });
-        bCopyAddress.setClickable(false);
+        enableCopyAddress(false);
 
         evAmount.setOnNewAmountListener(new ExchangeView.OnNewAmountListener() {
             @Override
@@ -162,6 +171,37 @@ public class ReceiveFragment extends Fragment {
             }
         });
 
+        bSubaddress.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                enableSubaddressButton(false);
+                enableCopyAddress(false);
+
+                final Runnable resetSize = new Runnable() {
+                    public void run() {
+                        tvAddress.animate().setDuration(125).scaleX(1).scaleY(1).start();
+                    }
+                };
+
+                final Runnable newAddress = new Runnable() {
+                    public void run() {
+                        tvAddress.setText(wallet.getNewSubaddress());
+                        tvAddressLabel.setText(getString(R.string.generate_address_label_sub,
+                                wallet.getNumSubaddresses() - 1));
+                        storeWallet();
+                        generateQr();
+                        enableCopyAddress(true);
+                        tvAddress.animate().alpha(1).setDuration(125)
+                                .scaleX(1.2f).scaleY(1.2f)
+                                .withEndAction(resetSize).start();
+                    }
+                };
+
+                tvAddress.animate().alpha(0).setDuration(250)
+                        .withEndAction(newAddress).start();
+            }
+        });
+
         qrCode.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -194,11 +234,25 @@ public class ReceiveFragment extends Fragment {
             String password = b.getString("password");
             loadAndShow(path, password);
         } else {
-            show(walletName, address);
+            if (getActivity() instanceof GenerateReviewFragment.ListenerWithWallet) {
+                wallet = ((GenerateReviewFragment.ListenerWithWallet) getActivity()).getWallet();
+                show();
+            } else {
+                throw new IllegalStateException("no wallet info");
+            }
         }
         return view;
     }
 
+    void enableSubaddressButton(boolean enable) {
+        bSubaddress.setEnabled(enable);
+        if (enable) {
+            bSubaddress.setCompoundDrawablesWithIntrinsicBounds(0, R.drawable.ic_settings_orange_24dp, 0, 0);
+        } else {
+            bSubaddress.setCompoundDrawablesWithIntrinsicBounds(0, R.drawable.ic_settings_gray_24dp, 0, 0);
+        }
+    }
+
     void copyAddress() {
         Helper.clipBoardCopy(getActivity(), getString(R.string.label_copy_address), tvAddress.getText().toString());
         Toast.makeText(getActivity(), getString(R.string.message_copy_address), Toast.LENGTH_SHORT).show();
@@ -228,25 +282,38 @@ public class ReceiveFragment extends Fragment {
         super.onResume();
         Timber.d("onResume()");
         listenerCallback.setToolbarButton(Toolbar.BUTTON_BACK);
-        listenerCallback.setSubtitle(getString(R.string.receive_title));
-        generateQr();
+        if (wallet != null) {
+            listenerCallback.setSubtitle(wallet.getAccountLabel());
+            generateQr();
+        } else {
+            listenerCallback.setSubtitle(getString(R.string.status_wallet_loading));
+            clearQR();
+        }
     }
 
     private boolean isLoaded = false;
 
-    private void show(String name, String address) {
-        Timber.d("name=%s", name);
+    private void show() {
+        Timber.d("name=%s", wallet.getName());
         isLoaded = true;
-        listenerCallback.setTitle(name);
-        tvAddress.setText(address);
+        listenerCallback.setTitle(wallet.getName());
+        listenerCallback.setSubtitle(wallet.getAccountLabel());
+        tvAddress.setText(wallet.getAddress());
         etPaymentId.setEnabled(true);
         bPaymentId.setEnabled(true);
-        bCopyAddress.setClickable(true);
-        bCopyAddress.setImageResource(R.drawable.ic_content_copy_black_24dp);
+        enableCopyAddress(true);
         hideProgress();
         generateQr();
     }
 
+    private void enableCopyAddress(boolean enable) {
+        bCopyAddress.setClickable(enable);
+        if (enable)
+            bCopyAddress.setImageResource(R.drawable.ic_content_copy_black_24dp);
+        else
+            bCopyAddress.setImageResource(R.drawable.ic_content_nocopy_black_24dp);
+    }
+
     private void loadAndShow(String walletPath, String password) {
         new AsyncShow().executeOnExecutor(MoneroThreadPoolExecutor.MONERO_THREAD_POOL_EXECUTOR,
                 walletPath, password);
@@ -254,18 +321,14 @@ public class ReceiveFragment extends Fragment {
 
     private class AsyncShow extends AsyncTask<String, Void, Boolean> {
         String password;
-        String address;
-        String name;
 
         @Override
         protected Boolean doInBackground(String... params) {
             if (params.length != 2) return false;
             String walletPath = params[0];
             password = params[1];
-            Wallet wallet = WalletManager.getInstance().openWallet(walletPath, password);
-            address = wallet.getAddress();
-            name = wallet.getName();
-            wallet.close();
+            wallet = WalletManager.getInstance().openWallet(walletPath, password);
+            isMyWallet = true;
             return true;
         }
 
@@ -274,7 +337,7 @@ public class ReceiveFragment extends Fragment {
             super.onPostExecute(result);
             if (!isAdded()) return; // never mind
             if (result) {
-                show(name, address);
+                show();
             } else {
                 Toast.makeText(getActivity(), getString(R.string.receive_cannot_open), Toast.LENGTH_LONG).show();
                 hideProgress();
@@ -282,6 +345,27 @@ public class ReceiveFragment extends Fragment {
         }
     }
 
+    private void storeWallet() {
+        new AsyncStore().executeOnExecutor(MoneroThreadPoolExecutor.MONERO_THREAD_POOL_EXECUTOR);
+    }
+
+    private class AsyncStore extends AsyncTask<String, Void, Boolean> {
+
+        @Override
+        protected Boolean doInBackground(String... params) {
+            if (params.length != 0) return false;
+            if (wallet != null) wallet.store();
+            return true;
+        }
+
+        @Override
+        protected void onPostExecute(Boolean result) {
+            enableSubaddressButton(true);
+            super.onPostExecute(result);
+        }
+    }
+
+
     private boolean checkPaymentId() {
         String paymentId = etPaymentId.getEditText().getText().toString();
         boolean ok = paymentId.isEmpty() || Wallet.isPaymentIdValid(paymentId);
@@ -300,7 +384,7 @@ public class ReceiveFragment extends Fragment {
         String paymentId = etPaymentId.getEditText().getText().toString();
         String xmrAmount = evAmount.getAmount();
         Timber.d("%s/%s/%s", xmrAmount, paymentId, address);
-        if ((xmrAmount == null) || !Wallet.isAddressValid(address, WalletManager.getInstance().isTestNet())) {
+        if ((xmrAmount == null) || !Wallet.isAddressValid(address)) {
             clearQR();
             Timber.d("CLEARQR");
             return;
@@ -335,6 +419,7 @@ public class ReceiveFragment extends Fragment {
     }
 
     public Bitmap generate(String text, int width, int height) {
+        if ((width <= 0) || (height <= 0)) return null;
         Map<EncodeHintType, Object> hints = new HashMap<>();
         hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
         hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
@@ -417,4 +502,15 @@ public class ReceiveFragment extends Fragment {
         Timber.d("onPause()");
         super.onPause();
     }
+
+    @Override
+    public void onDetach() {
+        Timber.d("onDetach()");
+        if ((wallet != null) && (isMyWallet)) {
+            wallet.close();
+            wallet = null;
+            isMyWallet = false;
+        }
+        super.onDetach();
+    }
 }

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

@@ -59,6 +59,7 @@ public class TxFragment extends Fragment {
         TS_FORMATTER.setTimeZone(tz);
     }
 
+    private TextView tvAccount;
     private TextView tvTxTimestamp;
     private TextView tvTxId;
     private TextView tvTxKey;
@@ -88,6 +89,7 @@ public class TxFragment extends Fragment {
         tvDestinationBtc = (TextView) view.findViewById(R.id.tvDestinationBtc);
         tvTxAmountBtc = (TextView) view.findViewById(R.id.tvTxAmountBtc);
 
+        tvAccount = (TextView) view.findViewById(R.id.tvAccount);
         tvTxTimestamp = (TextView) view.findViewById(R.id.tvTxTimestamp);
         tvTxId = (TextView) view.findViewById(R.id.tvTxId);
         tvTxKey = (TextView) view.findViewById(R.id.tvTxKey);
@@ -222,6 +224,8 @@ public class TxFragment extends Fragment {
         activityCallback.setSubtitle(getString(R.string.tx_title));
         activityCallback.setToolbarButton(Toolbar.BUTTON_BACK);
 
+        tvAccount.setText(getString(R.string.tx_account_formatted, info.account, info.subaddress));
+
         tvTxTimestamp.setText(TS_FORMATTER.format(new Date(info.timestamp * 1000)));
         tvTxId.setText(info.hash);
         tvTxKey.setText(info.txKey.isEmpty() ? "-" : info.txKey);
@@ -236,9 +240,6 @@ public class TxFragment extends Fragment {
         String sign = (info.direction == TransactionInfo.Direction.Direction_In ? "+" : "-");
 
         long realAmount = info.amount;
-        if (info.isPending) {
-            realAmount = realAmount - info.fee;
-        }
         tvTxAmount.setText(sign + Wallet.getDisplayAmount(realAmount));
 
         if ((info.fee > 0)) {
@@ -286,7 +287,10 @@ public class TxFragment extends Fragment {
             }
         } else {
             sb.append("-");
-            dstSb.append(info.direction == TransactionInfo.Direction.Direction_In ? activityCallback.getWalletAddress() : "-");
+            dstSb.append(info.direction ==
+                    TransactionInfo.Direction.Direction_In ?
+                    activityCallback.getWalletSubaddress(info.account, info.subaddress) :
+                    "-");
         }
         tvTxTransfers.setText(sb.toString());
         tvDestination.setText(dstSb.toString());
@@ -321,7 +325,7 @@ public class TxFragment extends Fragment {
     Listener activityCallback;
 
     public interface Listener {
-        String getWalletAddress();
+        String getWalletSubaddress(int accountIndex, int subaddressIndex);
 
         String getTxKey(String hash);
 

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

@@ -43,9 +43,7 @@ import com.m2049r.xmrwallet.model.Wallet;
 import com.m2049r.xmrwallet.service.exchange.api.ExchangeApi;
 import com.m2049r.xmrwallet.service.exchange.api.ExchangeCallback;
 import com.m2049r.xmrwallet.service.exchange.api.ExchangeRate;
-import com.m2049r.xmrwallet.service.exchange.kraken.ExchangeApiImpl;
 import com.m2049r.xmrwallet.util.Helper;
-import com.m2049r.xmrwallet.util.OkHttpClientSingleton;
 import com.m2049r.xmrwallet.widget.Toolbar;
 
 import java.text.NumberFormat;
@@ -101,7 +99,9 @@ public class WalletFragment extends Fragment
         ivSynced = (ImageView) view.findViewById(R.id.ivSynced);
 
         sCurrency = (Spinner) view.findViewById(R.id.sCurrency);
-        sCurrency.setAdapter(ArrayAdapter.createFromResource(getContext(), R.array.currency, R.layout.item_spinner_balance));
+        ArrayAdapter currencyAdapter = ArrayAdapter.createFromResource(getContext(), R.array.currency, R.layout.item_spinner_balance);
+        currencyAdapter.setDropDownViewResource(R.layout.item_spinner_dropdown_item);
+        sCurrency.setAdapter(currencyAdapter);
 
         bSend = (Button) view.findViewById(R.id.bSend);
         bReceive = (Button) view.findViewById(R.id.bReceive);
@@ -150,7 +150,7 @@ public class WalletFragment extends Fragment
         // at this point selection is XMR in case of error
         String displayB;
         double amountA = Double.parseDouble(Wallet.getDisplayAmount(unlockedBalance)); // crash if this fails!
-        if (!"XMR".equals(balanceCurrency)) { // not XMR
+        if (!Helper.CRYPTO.equals(balanceCurrency)) { // not XMR
             double amountB = amountA * balanceRate;
             displayB = Helper.getFormattedAmount(amountB, false);
         } else { // XMR
@@ -159,10 +159,10 @@ public class WalletFragment extends Fragment
         tvBalance.setText(displayB);
     }
 
-    String balanceCurrency = "XMR";
+    String balanceCurrency = Helper.CRYPTO;
     double balanceRate = 1.0;
 
-    private final ExchangeApi exchangeApi = new ExchangeApiImpl(OkHttpClientSingleton.getOkHttpClient());
+    private final ExchangeApi exchangeApi = Helper.getExchangeApi();
 
     void refreshBalance() {
         if (sCurrency.getSelectedItemPosition() == 0) { // XMR
@@ -170,9 +170,10 @@ public class WalletFragment extends Fragment
             tvBalance.setText(Helper.getFormattedAmount(amountXmr, true));
         } else { // not XMR
             String currency = (String) sCurrency.getSelectedItem();
+            Timber.d(currency);
             if (!currency.equals(balanceCurrency) || (balanceRate <= 0)) {
                 showExchanging();
-                exchangeApi.queryExchangeRate("XMR", currency,
+                exchangeApi.queryExchangeRate(Helper.CRYPTO, currency,
                         new ExchangeCallback() {
                             @Override
                             public void onSuccess(final ExchangeRate exchangeRate) {
@@ -228,10 +229,10 @@ public class WalletFragment extends Fragment
 
     public void exchange(final ExchangeRate exchangeRate) {
         hideExchanging();
-        if (!"XMR".equals(exchangeRate.getBaseCurrency())) {
+        if (!Helper.CRYPTO.equals(exchangeRate.getBaseCurrency())) {
             Timber.e("Not XMR");
             sCurrency.setSelection(0, true);
-            balanceCurrency = "XMR";
+            balanceCurrency = Helper.CRYPTO;
             balanceRate = 1.0;
         } else {
             int spinnerPosition = ((ArrayAdapter) sCurrency.getAdapter()).getPosition(exchangeRate.getQuoteCurrency());
@@ -256,7 +257,7 @@ public class WalletFragment extends Fragment
     // called from activity
 
     public void onRefreshed(final Wallet wallet, final boolean full) {
-        Timber.d("onRefreshed()");
+        Timber.d("onRefreshed(%b)", full);
         if (full) {
             List<TransactionInfo> list = wallet.getHistory().getAll();
             adapter.setInfos(list);
@@ -270,6 +271,7 @@ public class WalletFragment extends Fragment
             bSend.setVisibility(View.VISIBLE);
             bSend.setEnabled(true);
         }
+        enableAccountsList(true);
     }
 
     boolean walletLoaded = false;
@@ -313,7 +315,7 @@ public class WalletFragment extends Fragment
         if (wallet == null) return;
         walletTitle = wallet.getName();
         String watchOnly = (wallet.isWatchOnly() ? getString(R.string.label_watchonly) : "");
-        walletSubtitle = wallet.getAddress().substring(0, 10) + "…" + watchOnly;
+        walletSubtitle = wallet.getAccountLabel();
         activityCallback.setTitle(walletTitle, walletSubtitle);
         Timber.d("wallet title is %s", walletTitle);
     }
@@ -323,10 +325,13 @@ public class WalletFragment extends Fragment
     private String walletSubtitle = null;
     private long unlockedBalance = 0;
 
+    private int accountIdx = -1;
+
     private void updateStatus(Wallet wallet) {
         if (!isAdded()) return;
         Timber.d("updateStatus()");
-        if (walletTitle == null) {
+        if ((walletTitle == null) || (accountIdx != wallet.getAccountIndex())) {
+            accountIdx = wallet.getAccountIndex();
             setActivityTitle(wallet);
         }
         long balance = wallet.getBalance();
@@ -352,7 +357,7 @@ public class WalletFragment extends Fragment
                 setProgress(x);
                 ivSynced.setVisibility(View.GONE);
             } else {
-                sync = getString(R.string.status_synced) + formatter.format(wallet.getBlockChainHeight());
+                sync = getString(R.string.status_synced) + " " + formatter.format(wallet.getBlockChainHeight());
                 ivSynced.setVisibility(View.VISIBLE);
             }
         } else {
@@ -412,9 +417,28 @@ public class WalletFragment extends Fragment
         super.onResume();
         Timber.d("onResume()");
         activityCallback.setTitle(walletTitle, walletSubtitle);
-        activityCallback.setToolbarButton(Toolbar.BUTTON_CLOSE);
+        //activityCallback.setToolbarButton(Toolbar.BUTTON_CLOSE); // TODO: Close button somewhere else
+        activityCallback.setToolbarButton(Toolbar.BUTTON_NONE);
         setProgress(syncProgress);
         setProgress(syncText);
         showReceive();
+        if (activityCallback.isSynced()) enableAccountsList(true);
     }
+
+    @Override
+    public void onPause() {
+        enableAccountsList(false);
+        super.onPause();
+    }
+
+    public interface DrawerLocker {
+        void setDrawerEnabled(boolean enabled);
+    }
+
+    private void enableAccountsList(boolean enable) {
+        if (activityCallback instanceof DrawerLocker) {
+            ((DrawerLocker) activityCallback).setDrawerEnabled(enable);
+        }
+    }
+
 }

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

@@ -19,13 +19,15 @@ package com.m2049r.xmrwallet;
 
 import android.app.Application;
 
+import com.m2049r.xmrwallet.util.Helper;
+
 import timber.log.Timber;
 
 public class XmrWalletApplication extends Application {
     @Override
     public void onCreate() {
         super.onCreate();
-
+        
         if (BuildConfig.DEBUG) {
             Timber.plant(new Timber.DebugTree());
         }

app/src/main/java/com/m2049r/xmrwallet/data/BarcodeData.java

@@ -18,6 +18,7 @@ package com.m2049r.xmrwallet.data;
 
 import android.net.Uri;
 
+import com.m2049r.xmrwallet.model.NetworkType;
 import com.m2049r.xmrwallet.model.Wallet;
 import com.m2049r.xmrwallet.model.WalletManager;
 import com.m2049r.xmrwallet.util.BitcoinAddressValidator;
@@ -178,7 +179,7 @@ public class BarcodeData {
                 return null; // we have an amount but its not a number!
             }
         }
-        if (!BitcoinAddressValidator.validate(address, WalletManager.getInstance().isTestNet())) {
+        if (!BitcoinAddressValidator.validate(address)) {
             Timber.d("address invalid");
             return null;
         }
@@ -190,7 +191,7 @@ public class BarcodeData {
 
         if (address == null) return null;
 
-        if (!BitcoinAddressValidator.validate(address, WalletManager.getInstance().isTestNet())) {
+        if (!BitcoinAddressValidator.validate(address)) {
             Timber.d("address invalid");
             return null;
         }

app/src/main/java/com/m2049r/xmrwallet/data/WalletNode.java

@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2018 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.data;
+
+import com.m2049r.xmrwallet.model.NetworkType;
+
+import java.net.InetSocketAddress;
+import java.net.SocketAddress;
+
+public class WalletNode {
+    private final String name;
+    private final String host;
+    private final int port;
+    private final String user;
+    private final String password;
+    private final NetworkType networkType;
+
+    public WalletNode(String walletName, String daemon, NetworkType networkType) {
+        if ((daemon == null) || daemon.isEmpty())
+            throw new IllegalArgumentException("daemon is empty");
+        this.name = walletName;
+        String daemonAddress;
+        String a[] = daemon.split("@");
+        if (a.length == 1) { // no credentials
+            daemonAddress = a[0];
+            user = "";
+            password = "";
+        } else if (a.length == 2) { // credentials
+            String userPassword[] = a[0].split(":");
+            if (userPassword.length != 2)
+                throw new IllegalArgumentException("User:Password invalid");
+            user = userPassword[0];
+            if (!user.isEmpty()) {
+                password = userPassword[1];
+            } else {
+                password = "";
+            }
+            daemonAddress = a[1];
+        } else {
+            throw new IllegalArgumentException("Too many @");
+        }
+
+        String da[] = daemonAddress.split(":");
+        if ((da.length > 2) || (da.length < 1))
+            throw new IllegalArgumentException("Too many ':' or too few");
+        host = da[0];
+        if (da.length == 2) {
+            try {
+                port = Integer.parseInt(da[1]);
+            } catch (NumberFormatException ex) {
+                throw new IllegalArgumentException("Port not numeric");
+            }
+        } else {
+            switch (networkType) {
+                case NetworkType_Mainnet:
+                    port = 18081;
+                    break;
+                case NetworkType_Testnet:
+                    port = 28081;
+                    break;
+                case NetworkType_Stagenet:
+                    port = 38081;
+                    break;
+                default:
+                    port = 0;
+            }
+        }
+        this.networkType = networkType;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public NetworkType getNetworkType() {
+        return networkType;
+    }
+
+    public String getAddress() {
+        return host + ":" + port;
+    }
+
+    public String getUsername() {
+        return user;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public SocketAddress getSocketAddress() {
+        return new InetSocketAddress(host, port);
+    }
+
+    public boolean isValid() {
+        return !host.isEmpty();
+    }
+}

app/src/main/java/com/m2049r/xmrwallet/dialog/CreditsFragment.java

@@ -28,16 +28,14 @@ import android.text.Html;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.widget.TextView;
-import android.widget.Toast;
 
 import com.m2049r.xmrwallet.R;
-import com.m2049r.xmrwallet.util.Helper;
 
-public class DonationFragment extends DialogFragment {
+public class CreditsFragment extends DialogFragment {
     static final String TAG = "DonationFragment";
 
-    public static DonationFragment newInstance() {
-        return new DonationFragment();
+    public static CreditsFragment newInstance() {
+        return new CreditsFragment();
     }
 
     public static void display(FragmentManager fm) {
@@ -47,24 +45,14 @@ public class DonationFragment extends DialogFragment {
             ft.remove(prev);
         }
 
-        DonationFragment.newInstance().show(ft, TAG);
+        CreditsFragment.newInstance().show(ft, TAG);
     }
 
     @Override
     public Dialog onCreateDialog(Bundle savedInstanceState) {
-        final View view = LayoutInflater.from(getActivity()).inflate(R.layout.fragment_donation, null);
+        final View view = LayoutInflater.from(getActivity()).inflate(R.layout.fragment_credits, null);
 
-        ((TextView) view.findViewById(R.id.tvCredits)).setText(Html.fromHtml(getString(R.string.donation_credits)));
-
-        (view.findViewById(R.id.bCopyAddress)).
-                setOnClickListener(new View.OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        Helper.clipBoardCopy(getActivity(), getString(R.string.label_copy_address),
-                                ((TextView) view.findViewById(R.id.tvWalletAddress)).getText().toString());
-                        Toast.makeText(getActivity(), getString(R.string.message_copy_address), Toast.LENGTH_SHORT).show();
-                    }
-                });
+        ((TextView) view.findViewById(R.id.tvCredits)).setText(Html.fromHtml(getString(R.string.credits_text)));
 
         AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
         builder.setView(view);

app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendAddressWizardFragment.java

@@ -212,7 +212,7 @@ public class SendAddressWizardFragment extends SendWizardFragment {
     private boolean checkAddressNoError() {
         String address = etAddress.getEditText().getText().toString();
         return Wallet.isAddressValid(address)
-                || BitcoinAddressValidator.validate(address, WalletManager.getInstance().isTestNet());
+                || BitcoinAddressValidator.validate(address);
     }
 
     private boolean checkAddress() {
@@ -228,13 +228,13 @@ public class SendAddressWizardFragment extends SendWizardFragment {
     private boolean isIntegratedAddress() {
         String address = etAddress.getEditText().getText().toString();
         return (address.length() == INTEGRATED_ADDRESS_LENGTH)
-                && Wallet.isAddressValid(address, WalletManager.getInstance().isTestNet());
+                && Wallet.isAddressValid(address);
     }
 
     private boolean isBitcoinAddress() {
         String address = etAddress.getEditText().getText().toString();
-        if ((address.length() >= 27) && (address.length() <= 34))
-            return BitcoinAddressValidator.validate(address, WalletManager.getInstance().isTestNet());
+        if ((address.length() >= 27) && (address.length() <= 35))
+            return BitcoinAddressValidator.validate(address);
         else
             return false;
     }

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

@@ -20,6 +20,9 @@ import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.ImageButton;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
 import android.widget.TextView;
 
 import com.m2049r.xmrwallet.R;
@@ -57,8 +60,9 @@ public class SendAmountWizardFragment extends SendWizardFragment {
 
     private TextView tvFunds;
     private ExchangeTextView evAmount;
-    //private Button bSendAll;
-    private NumberPadView numberPad;
+    private View llAmount;
+    private View rlSweep;
+    private ImageButton ibSweep;
 
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
@@ -73,37 +77,64 @@ public class SendAmountWizardFragment extends SendWizardFragment {
         tvFunds = (TextView) view.findViewById(R.id.tvFunds);
 
         evAmount = (ExchangeTextView) view.findViewById(R.id.evAmount);
-        numberPad = (NumberPadView) view.findViewById(R.id.numberPad);
-        numberPad.setListener(evAmount);
+        ((NumberPadView) view.findViewById(R.id.numberPad)).setListener(evAmount);
 
-        /*
-        bSendAll = (Button) view.findViewById(R.id.bSendAll);
-        bSendAll.setOnClickListener(new View.OnClickListener() {
+        rlSweep = view.findViewById(R.id.rlSweep);
+        llAmount = view.findViewById(R.id.llAmount);
+        view.findViewById(R.id.ivSweep).setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                // TODO: send all - figure out how to display this
+                sweepAll(false);
+            }
+        });
+
+        ibSweep = (ImageButton) view.findViewById(R.id.ibSweep);
+
+        ibSweep.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                sweepAll(true);
             }
         });
-*/
 
         Helper.hideKeyboard(getActivity());
 
         return view;
     }
 
+    private boolean spendAllMode = false;
+
+    private void sweepAll(boolean spendAllMode) {
+        if (spendAllMode) {
+            ibSweep.setVisibility(View.INVISIBLE);
+            llAmount.setVisibility(View.GONE);
+            rlSweep.setVisibility(View.VISIBLE);
+        } else {
+            ibSweep.setVisibility(View.VISIBLE);
+            llAmount.setVisibility(View.VISIBLE);
+            rlSweep.setVisibility(View.GONE);
+        }
+        this.spendAllMode = spendAllMode;
+    }
 
     @Override
     public boolean onValidateFields() {
-        if (!evAmount.validate(maxFunds)) {
-            return false;
-        }
+        if (spendAllMode) {
+            if (sendListener != null) {
+                sendListener.getTxData().setAmount(Wallet.SWEEP_ALL);
+            }
+        } else {
+            if (!evAmount.validate(maxFunds)) {
+                return false;
+            }
 
-        if (sendListener != null) {
-            String xmr = evAmount.getAmount();
-            if (xmr != null) {
-                sendListener.getTxData().setAmount(Wallet.getAmountFromString(xmr));
-            } else {
-                sendListener.getTxData().setAmount(0L);
+            if (sendListener != null) {
+                String xmr = evAmount.getAmount();
+                if (xmr != null) {
+                    sendListener.getTxData().setAmount(Wallet.getAmountFromString(xmr));
+                } else {
+                    sendListener.getTxData().setAmount(0L);
+                }
             }
         }
         return true;

app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendBtcAmountWizardFragment.java

@@ -247,7 +247,7 @@ public class SendBtcAmountWizardFragment extends SendWizardFragment {
 
     private XmrToApi xmrToApi = null;
 
-    private final XmrToApi getXmrToApi() {
+    private XmrToApi getXmrToApi() {
         if (xmrToApi == null) {
             synchronized (this) {
                 if (xmrToApi == null) {

app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendFragment.java

@@ -17,6 +17,7 @@
 package com.m2049r.xmrwallet.fragment.send;
 
 import android.content.Context;
+import android.content.SharedPreferences;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
@@ -41,9 +42,12 @@ import com.m2049r.xmrwallet.data.BarcodeData;
 import com.m2049r.xmrwallet.data.PendingTx;
 import com.m2049r.xmrwallet.data.TxData;
 import com.m2049r.xmrwallet.data.TxDataBtc;
+import com.m2049r.xmrwallet.dialog.HelpFragment;
 import com.m2049r.xmrwallet.layout.SpendViewPager;
 import com.m2049r.xmrwallet.model.PendingTransaction;
 import com.m2049r.xmrwallet.util.Helper;
+import com.m2049r.xmrwallet.util.NodeList;
+import com.m2049r.xmrwallet.util.Notice;
 import com.m2049r.xmrwallet.util.UserNotes;
 import com.m2049r.xmrwallet.widget.DotBar;
 import com.m2049r.xmrwallet.widget.Toolbar;
@@ -63,6 +67,8 @@ public class SendFragment extends Fragment
     private Listener activityCallback;
 
     public interface Listener {
+        SharedPreferences getPrefs();
+
         long getTotalFunds();
 
         void onPrepareSend(String tag, TxData data);
@@ -93,6 +99,10 @@ public class SendFragment extends Fragment
 
     private Button bDone;
 
+    private View llXmrToEnabled;
+    private View ibXmrToInfoClose;
+
+
     static private int MAX_FALLBACK = Integer.MAX_VALUE;
 
     @Override
@@ -110,6 +120,9 @@ public class SendFragment extends Fragment
         arrowPrev = getResources().getDrawable(R.drawable.ic_navigate_prev_white_24dp);
         arrowNext = getResources().getDrawable(R.drawable.ic_navigate_next_white_24dp);
 
+        ViewGroup llNotice = (ViewGroup) view.findViewById(R.id.llNotice);
+        Notice.showAll(llNotice,".*_send");
+
         spendViewPager = (SpendViewPager) view.findViewById(R.id.pager);
         pagerAdapter = new SpendPagerAdapter(getChildFragmentManager());
         spendViewPager.setOffscreenPageLimit(pagerAdapter.getCount()); // load & keep all pages in cache
@@ -260,7 +273,7 @@ public class SendFragment extends Fragment
                     pagerAdapter.notifyDataSetChanged();
                 }
             });
-            Timber.d("New Mode = " + mode.toString());
+            Timber.d("New Mode = %s", mode.toString());
         }
     }
 
@@ -319,7 +332,7 @@ public class SendFragment extends Fragment
         @Override
         public SendWizardFragment getItem(int position) {
             Timber.d("getItem(%d) CREATE", position);
-            Timber.d("Mode=" + mode.toString());
+            Timber.d("Mode=%s", mode.toString());
             if (mode == Mode.XMR) {
                 switch (position) {
                     case POS_ADDRESS:
@@ -518,4 +531,22 @@ public class SendFragment extends Fragment
         inflater.inflate(R.menu.send_menu, menu);
         super.onCreateOptionsMenu(menu, inflater);
     }
+
+    // xmr.to info box
+    private static final String PREF_SHOW_XMRTO_ENABLED = "info_xmrto_enabled_send";
+
+    boolean showXmrtoEnabled = true;
+
+    void loadPrefs() {
+        SharedPreferences sharedPref = activityCallback.getPrefs();
+        showXmrtoEnabled = sharedPref.getBoolean(PREF_SHOW_XMRTO_ENABLED, true);
+    }
+
+    void saveXmrToPrefs() {
+        SharedPreferences sharedPref = activityCallback.getPrefs();
+        SharedPreferences.Editor editor = sharedPref.edit();
+        editor.putBoolean(PREF_SHOW_XMRTO_ENABLED, showXmrtoEnabled);
+        editor.apply();
+    }
+
 }

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

@@ -36,6 +36,7 @@ import com.m2049r.xmrwallet.util.UserNotes;
 import timber.log.Timber;
 
 public class SendSettingsWizardFragment extends SendWizardFragment {
+    final static public int MIXIN = 6;
 
     public static SendSettingsWizardFragment newInstance(Listener listener) {
         SendSettingsWizardFragment instance = new SendSettingsWizardFragment();
@@ -54,14 +55,12 @@ public class SendSettingsWizardFragment extends SendWizardFragment {
         TxData getTxData();
     }
 
-    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;
@@ -76,7 +75,6 @@ public class SendSettingsWizardFragment extends SendWizardFragment {
         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);
@@ -103,7 +101,7 @@ public class SendSettingsWizardFragment extends SendWizardFragment {
         if (sendListener != null) {
             TxData txData = sendListener.getTxData();
             txData.setPriority(Priorities[sPriority.getSelectedItemPosition()]);
-            txData.setMixin(Mixins[sMixin.getSelectedItemPosition()]);
+            txData.setMixin(MIXIN);
             txData.setUserNotes(new UserNotes(etNotes.getText().toString()));
         }
         return true;

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

@@ -77,7 +77,7 @@ public class SendSuccessWizardFragment extends SendWizardFragment {
             @Override
             public void onClick(View v) {
                 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();
+                Toast.makeText(getActivity(), getString(R.string.message_copy_txid), Toast.LENGTH_SHORT).show();
             }
         });