Subaddresses as first class citizens (#733)

several gender mistakes ("monedero" we're using now is masculine)
ledger translations
onboarding
sideshift integration

.circleci/config.yml

@@ -3,11 +3,13 @@ jobs:
   build:
     working_directory: ~/code
     docker:
-      - image: bitriseio/android-ndk
+      - image: circleci/android:api-28-ndk
     environment:
       JVM_OPTS: -Xmx3200m
     steps:
       - checkout
+      - run: yes | sdkmanager --licenses || exit 0
+      - run: yes | sdkmanager --update || exit 0
       - restore_cache:
           key: jars-{{ checksum "build.gradle" }}-{{ checksum  "app/build.gradle" }}
       - run:

.gitignore

@@ -14,3 +14,5 @@
 /app/prodMainnet
 /app/alphaStagenet
 /app/prodStagenet
+/app/.cxx
+/monerujo.id

.idea/.gitignore

@@ -1,3 +0,0 @@
-workspace.xml
-markdown-*
-misc.xml

.idea/.name

@@ -1 +0,0 @@
-xmrwallet

.idea/compiler.xml

@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="CompilerConfiguration">
-    <resourceExtensions />
-    <wildcardResourcePatterns>
-      <entry name="!?*.java" />
-      <entry name="!?*.form" />
-      <entry name="!?*.class" />
-      <entry name="!?*.groovy" />
-      <entry name="!?*.scala" />
-      <entry name="!?*.flex" />
-      <entry name="!?*.kt" />
-      <entry name="!?*.clj" />
-      <entry name="!?*.aj" />
-    </wildcardResourcePatterns>
-    <annotationProcessing>
-      <profile default="true" name="Default" enabled="false">
-        <processorPath useClasspath="true" />
-      </profile>
-    </annotationProcessing>
-  </component>
-</project>

.idea/copyright/profiles_settings.xml

@@ -1,3 +0,0 @@
-<component name="CopyrightManager">
-  <settings default="" />
-</component>

.idea/gradle.xml

@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="GradleSettings">
-    <option name="linkedExternalProjectsSettings">
-      <GradleProjectSettings>
-        <option name="disableWrapperSourceDistributionNotification" value="true" />
-        <option name="distributionType" value="DEFAULT_WRAPPED" />
-        <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="modules">
-          <set>
-            <option value="$PROJECT_DIR$" />
-            <option value="$PROJECT_DIR$/app" />
-          </set>
-        </option>
-        <option name="resolveModulePerSourceSet" value="false" />
-      </GradleProjectSettings>
-    </option>
-  </component>
-</project>

.idea/modules.xml

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
-      <module fileurl="file://$PROJECT_DIR$/xmrwallet.iml" filepath="$PROJECT_DIR$/xmrwallet.iml" />
-    </modules>
-  </component>
-</project>

.idea/runConfigurations.xml

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="RunConfigurationProducerService">
-    <option name="ignoredProducers">
-      <set>
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
-      </set>
-    </option>
-  </component>
-</project>

.idea/vcs.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
-  </component>
-</project>

app/CMakeLists.txt

@@ -13,7 +13,7 @@ set(EXTERNAL_LIBS_DIR ${CMAKE_SOURCE_DIR}/../external-libs)
 
 add_library(sodium STATIC IMPORTED)
 set_target_properties(sodium PROPERTIES IMPORTED_LOCATION
-        ${EXTERNAL_LIBS_DIR}/libsodium/lib/${ANDROID_ABI}/libsodium.a)
+        ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/libsodium.a)
 
 ############
 # OpenSSL
@@ -21,11 +21,11 @@ set_target_properties(sodium PROPERTIES IMPORTED_LOCATION
 
 add_library(crypto STATIC IMPORTED)
 set_target_properties(crypto PROPERTIES IMPORTED_LOCATION
-        ${EXTERNAL_LIBS_DIR}/openssl/lib/${ANDROID_ABI}/libcrypto.a)
+        ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/libcrypto.a)
 
 add_library(ssl STATIC IMPORTED)
 set_target_properties(ssl PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/openssl/lib/${ANDROID_ABI}/libssl.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/libssl.a)
 
 ############
 # Boost
@@ -33,39 +33,39 @@ set_target_properties(ssl PROPERTIES IMPORTED_LOCATION
 
 add_library(boost_chrono STATIC IMPORTED)
 set_target_properties(boost_chrono PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/boost/lib/${ANDROID_ABI}/libboost_chrono.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/libboost_chrono.a)
 
 add_library(boost_date_time STATIC IMPORTED)
 set_target_properties(boost_date_time PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/boost/lib/${ANDROID_ABI}/libboost_date_time.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/libboost_date_time.a)
 
 add_library(boost_filesystem STATIC IMPORTED)
 set_target_properties(boost_filesystem PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/boost/lib/${ANDROID_ABI}/libboost_filesystem.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/libboost_filesystem.a)
 
 add_library(boost_program_options STATIC IMPORTED)
 set_target_properties(boost_program_options PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/boost/lib/${ANDROID_ABI}/libboost_program_options.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/libboost_program_options.a)
 
 add_library(boost_regex STATIC IMPORTED)
 set_target_properties(boost_regex PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/boost/lib/${ANDROID_ABI}/libboost_regex.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/libboost_regex.a)
 
 add_library(boost_serialization STATIC IMPORTED)
 set_target_properties(boost_serialization PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/boost/lib/${ANDROID_ABI}/libboost_serialization.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/libboost_serialization.a)
 
 add_library(boost_system STATIC IMPORTED)
 set_target_properties(boost_system PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/boost/lib/${ANDROID_ABI}/libboost_system.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/libboost_system.a)
 
 add_library(boost_thread STATIC IMPORTED)
 set_target_properties(boost_thread PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/boost/lib/${ANDROID_ABI}/libboost_thread.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/libboost_thread.a)
 
 add_library(boost_wserialization STATIC IMPORTED)
 set_target_properties(boost_wserialization PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/boost/lib/${ANDROID_ABI}/libboost_wserialization.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/libboost_wserialization.a)
 
 #############
 # Monero
@@ -73,79 +73,103 @@ set_target_properties(boost_wserialization PROPERTIES IMPORTED_LOCATION
 
 add_library(wallet_api STATIC IMPORTED)
 set_target_properties(wallet_api PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libwallet_api.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libwallet_api.a)
 
 add_library(wallet STATIC IMPORTED)
 set_target_properties(wallet PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libwallet.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libwallet.a)
 
 add_library(cryptonote_core STATIC IMPORTED)
 set_target_properties(cryptonote_core PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libcryptonote_core.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libcryptonote_core.a)
 
 add_library(cryptonote_basic STATIC IMPORTED)
 set_target_properties(cryptonote_basic PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libcryptonote_basic.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libcryptonote_basic.a)
 
 add_library(mnemonics STATIC IMPORTED)
 set_target_properties(mnemonics PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libmnemonics.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libmnemonics.a)
 
 add_library(common STATIC IMPORTED)
 set_target_properties(common PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libcommon.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libcommon.a)
 
 add_library(cncrypto STATIC IMPORTED)
 set_target_properties(cncrypto PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libcncrypto.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libcncrypto.a)
 
 add_library(ringct STATIC IMPORTED)
 set_target_properties(ringct PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libringct.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libringct.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)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libringct_basic.a)
 
 add_library(blockchain_db STATIC IMPORTED)
 set_target_properties(blockchain_db PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libblockchain_db.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libblockchain_db.a)
 
 add_library(lmdb STATIC IMPORTED)
 set_target_properties(lmdb PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/liblmdb.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/liblmdb.a)
 
 add_library(easylogging STATIC IMPORTED)
 set_target_properties(easylogging PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libeasylogging.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libeasylogging.a)
 
 add_library(unbound STATIC IMPORTED)
 set_target_properties(unbound PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libunbound.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libunbound.a)
 
 add_library(epee STATIC IMPORTED)
 set_target_properties(epee PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libepee.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libepee.a)
 
 add_library(blocks STATIC IMPORTED)
 set_target_properties(blocks PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libblocks.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libblocks.a)
 
 add_library(checkpoints STATIC IMPORTED)
 set_target_properties(checkpoints PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libcheckpoints.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libcheckpoints.a)
 
 add_library(device STATIC IMPORTED)
 set_target_properties(device PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libdevice.a)
+        ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libdevice.a)
+
+add_library(device_trezor STATIC IMPORTED)
+set_target_properties(device_trezor PROPERTIES IMPORTED_LOCATION
+        ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libdevice_trezor.a)
 
 add_library(multisig STATIC IMPORTED)
 set_target_properties(multisig PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libmultisig.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libmultisig.a)
 
 add_library(version STATIC IMPORTED)
 set_target_properties(version PROPERTIES IMPORTED_LOCATION
-    ${EXTERNAL_LIBS_DIR}/monero/lib/${ANDROID_ABI}/libversion.a)
+    ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libversion.a)
+
+add_library(net STATIC IMPORTED)
+set_target_properties(net PROPERTIES IMPORTED_LOCATION
+        ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libnet.a)
+
+add_library(hardforks STATIC IMPORTED)
+set_target_properties(hardforks PROPERTIES IMPORTED_LOCATION
+        ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libhardforks.a)
+
+add_library(randomx STATIC IMPORTED)
+set_target_properties(randomx PROPERTIES IMPORTED_LOCATION
+        ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/librandomx.a)
+
+add_library(rpc_base STATIC IMPORTED)
+set_target_properties(rpc_base PROPERTIES IMPORTED_LOCATION
+        ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/librpc_base.a)
+
+add_library(wallet-crypto STATIC IMPORTED)
+set_target_properties(wallet-crypto PROPERTIES IMPORTED_LOCATION
+        ${EXTERNAL_LIBS_DIR}/${ANDROID_ABI}/monero/libwallet-crypto.a)
 
 #############
 # System
@@ -153,10 +177,16 @@ set_target_properties(version PROPERTIES IMPORTED_LOCATION
 
 find_library( log-lib log )
 
-include_directories( ${EXTERNAL_LIBS_DIR}/monero/include )
+include_directories( ${EXTERNAL_LIBS_DIR}/include )
 
 message(STATUS EXTERNAL_LIBS_DIR :  ${EXTERNAL_LIBS_DIR})
 
+if(${ANDROID_ABI} STREQUAL "x86_64")
+    set(EXTRA_LIBS "wallet-crypto")
+else()
+    set(EXTRA_LIBS "")
+endif()
+
 target_link_libraries(  monerujo
 
                         wallet_api
@@ -166,6 +196,7 @@ target_link_libraries(  monerujo
                         mnemonics
                         ringct
                         ringct_basic
+                        net
                         common
                         cncrypto
                         blockchain_db
@@ -176,8 +207,13 @@ target_link_libraries(  monerujo
                         blocks
                         checkpoints
                         device
+                        device_trezor
                         multisig
                         version
+                        randomx
+                        hardforks
+                        rpc_base
+                        ${EXTRA_LIBS}
 
                         boost_chrono
                         boost_date_time

app/build.gradle

@@ -1,16 +1,15 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion 29
-    buildToolsVersion '28.0.3'
+    buildToolsVersion '29.0.3'
     defaultConfig {
         applicationId "com.m2049r.xmrwallet"
         minSdkVersion 21
-        targetSdkVersion 28
+        targetSdkVersion 29
-        versionCode 159
+        versionCode 800
-        versionName "1.10.9 'Node-O-matiC'"
+        versionName "1.18.0 'ChAdOx1'"
-
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         externalNativeBuild {
             cmake {
                 cppFlags "-std=c++11"
@@ -18,6 +17,11 @@ android {
             }
         }
     }
+    bundle {
+        language {
+            enableSplit = false
+        }
+    }
 
     flavorDimensions 'type', 'net'
     productFlavors {
@@ -29,6 +33,11 @@ android {
             applicationIdSuffix '.stage'
             versionNameSuffix ' (stage)'
         }
+        devnet {
+            dimension 'net'
+            applicationIdSuffix '.test'
+            versionNameSuffix ' (test)'
+        }
         alpha {
             dimension 'type'
             applicationIdSuffix '.alpha'
@@ -47,6 +56,9 @@ android {
         debug {
             applicationIdSuffix ".debug"
         }
+        applicationVariants.all { variant ->
+            variant.buildConfigField "String", "ID_A", "\"" + getId("ID_A") + "\""
+        }
     }
 
     externalNativeBuild {
@@ -71,7 +83,8 @@ android {
     def availableLocales = ["en"]
     new File("app/src/main/res/").eachFileMatch(~/^values-.*/) { file ->
         def languageTag = file.name.substring(7).replace("-r", "-")
-        availableLocales.add(languageTag)
+        if (languageTag != "night")
+            availableLocales.add(languageTag)
     }
 
     // APKs for the same app that all have the same version information.
@@ -82,8 +95,7 @@ android {
         variant.outputs.all {
             output ->
                 def abiName = output.getFilter(com.android.build.OutputFile.ABI)
-                output.versionCodeOverride = abiCodes.get(abiName, 0) + 10 * variant.versionCode
+                output.versionCodeOverride = abiCodes.get(abiName, 0) + 10 * versionCode
-                //def flavor = output.getFilter(flavor)
 
                 if (abiName == null) abiName = "universal"
                 def v = "${variant.versionName}".replaceFirst(" '.*' ?", "")
@@ -93,30 +105,49 @@ android {
                 outputFileName = "$rootProject.ext.apkName-" + v + "_" + abiName + ".apk"
         }
     }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+}
+
+def getId(name) {
+    def Properties props = new Properties()
+    props.load(new FileInputStream(new File('monerujo.id')))
+    return props[name]
 }
 
 dependencies {
-    implementation "com.android.support:appcompat-v7:$rootProject.ext.supportVersion"
+    implementation 'androidx.core:core:1.3.2'
-    implementation "com.android.support:design:$rootProject.ext.supportVersion"
+    implementation 'androidx.appcompat:appcompat:1.2.0'
-    implementation "com.android.support:support-v4:$rootProject.ext.supportVersion"
+    implementation 'com.google.android.material:material:1.3.0'
-    implementation "com.android.support:recyclerview-v7:$rootProject.ext.supportVersion"
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
-    implementation "com.android.support:cardview-v7:$rootProject.ext.supportVersion"
+    implementation 'androidx.recyclerview:recyclerview:1.1.0'
-    implementation "com.android.support:swiperefreshlayout:$rootProject.ext.supportVersion"
+    implementation 'androidx.cardview:cardview:1.0.0'
+    implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.2.0-alpha01'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
+
     implementation 'me.dm7.barcodescanner:zxing:1.9.8'
+    implementation "com.squareup.okhttp3:okhttp:4.9.0"
+    implementation "com.burgstaller:okhttp-digest:2.1"
+    implementation "com.jakewharton.timber:timber:4.7.1"
 
-    implementation "com.squareup.okhttp3:okhttp:$rootProject.ext.okHttpVersion"
+    implementation 'com.nulab-inc:zxcvbn:1.3.0'
-    implementation "com.burgstaller:okhttp-digest:1.18"
-    implementation "com.jakewharton.timber:timber:$rootProject.ext.timberVersion"
 
-    implementation 'com.nulab-inc:zxcvbn:1.2.3'
+    implementation 'dnsjava:dnsjava:2.1.9'
+    implementation 'org.jitsi:dnssecjava:1.2.0'
+    implementation 'org.slf4j:slf4j-nop:1.7.30'
+    implementation 'com.github.brnunes:swipeablerecyclerview:1.0.2'
 
-    implementation 'dnsjava:dnsjava:2.1.8'
+    implementation 'com.github.aelstad:keccakj:1.1.0'
-    implementation 'org.jitsi:dnssecjava:1.1.3'
-    implementation 'org.slf4j:slf4j-nop:1.7.25'
 
     testImplementation "junit:junit:$rootProject.ext.junitVersion"
     testImplementation "org.mockito:mockito-all:$rootProject.ext.mockitoVersion"
-    testImplementation "com.squareup.okhttp3:mockwebserver:$rootProject.ext.okHttpVersion"
+    testImplementation "com.squareup.okhttp3:mockwebserver:4.9.0"
-    testImplementation 'org.json:json:20140107'
+    testImplementation 'org.json:json:20180813'
-    testImplementation 'net.jodah:concurrentunit:0.4.2'
+    testImplementation 'net.jodah:concurrentunit:0.4.4'
+
+    compileOnly 'org.projectlombok:lombok:1.18.16'
+    annotationProcessor 'org.projectlombok:lombok:1.18.16'
 }

app/src/main/AndroidManifest.xml

@@ -13,6 +13,7 @@
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
 
     <application
+        android:requestLegacyExternalStorage="true"
         android:name=".XmrWalletApplication"
         android:allowBackup="false"
         android:icon="@mipmap/ic_launcher"
@@ -20,37 +21,72 @@
         android:supportsRtl="true"
         android:theme="@style/MyMaterialTheme"
         android:usesCleartextTraffic="true">
-
         <activity
-            android:name=".WalletActivity"
+            android:name=".MainActivity"
-            android:configChanges="orientation|keyboardHidden"
+            android:configChanges="orientation|keyboardHidden|uiMode"
-            android:label="@string/wallet_activity_name"
-            android:launchMode="singleTask"
-            android:screenOrientation="portrait" />
-
-        <activity
-            android:name=".LoginActivity"
-            android:configChanges="orientation|keyboardHidden"
-            android:label="@string/app_name"
             android:launchMode="singleTop"
             android:screenOrientation="portrait">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
+        </activity>
+        <activity
+            android:name=".WalletActivity"
+            android:configChanges="orientation|keyboardHidden|uiMode"
+            android:label="@string/wallet_activity_name"
+            android:launchMode="singleTask"
+            android:screenOrientation="behind"/>
+        <activity
+            android:name=".LoginActivity"
+            android:configChanges="orientation|keyboardHidden|uiMode"
+            android:label="@string/app_name"
+            android:launchMode="singleTop"
+            android:screenOrientation="locked">
             <intent-filter>
                 <action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
             </intent-filter>
 
+            <intent-filter android:label="@string/app_name">
+                <action android:name="android.intent.action.VIEW" />
+                <data android:scheme="monero" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+            </intent-filter>
+
+            <intent-filter android:label="@string/app_name">
+                <action android:name="android.intent.action.VIEW" />
+                <data android:scheme="bitcoin" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+            </intent-filter>
+
             <meta-data
                 android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED"
                 android:resource="@xml/usb_device_filter" />
         </activity>
+        <activity
+            android:name=".onboarding.OnBoardingActivity"
+            android:configChanges="orientation|keyboardHidden|uiMode"
+            android:launchMode="singleTask"
+            android:screenOrientation="portrait" />
 
         <service
             android:name=".service.WalletService"
             android:description="@string/service_description"
             android:exported="false"
             android:label="Monero Wallet Service" />
+
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${applicationId}.fileprovider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/filepaths" />
+        </provider>
     </application>
-</manifest>
+</manifest>

app/src/main/assets/licenses.html

@@ -43,6 +43,9 @@ Copyright (c) 2014 Dushyanth Maguluru
 <h3>AndroidLicensesPage (https://github.com/adamsp/AndroidLicensesPage)</h3>
 Copyright (c) 2013 Adam Speakman
 
+<h3>SwipeableRecyclerView (https://github.com/brnunes/SwipeableRecyclerView)</h3>
+Copyright (c) 2015 Bruno R. Nunes
+
 <h3>Apache License, Version 2.0, January 2004</h3>
 http://www.apache.org/licenses/<br/>
 <br/>

app/src/main/cpp/device_io_monerujo.hpp

@@ -1,88 +0,0 @@
-// Copyright (c) 2017-2018, The Monero Project
-//
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without modification, are
-// permitted provided that the following conditions are met:
-//
-// 1. Redistributions of source code must retain the above copyright notice, this list of
-//    conditions and the following disclaimer.
-//
-// 2. Redistributions in binary form must reproduce the above copyright notice, this list
-//    of conditions and the following disclaimer in the documentation and/or other
-//    materials provided with the distribution.
-//
-// 3. Neither the name of the copyright holder nor the names of its contributors may be
-//    used to endorse or promote products derived from this software without specific
-//    prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
-// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
-// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
-// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
-// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-
-#if defined(HAVE_MONERUJO)
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-/**
- * @brief LedgerFind - find Ledger Device and return it's name
- * @param buffer     - buffer for name of found device
- * @param len        - length of buffer
- * @return  0 - success
- *         -1 - no device connected / found
- *         -2 - JVM not found
- */
-int LedgerFind(char *buffer, size_t len);
-
-/**
- * @brief LedgerExchange - exchange data with Ledger Device
- * @param command        - buffer for data to send
- * @param cmd_len        - length of send to send
- * @param response       - buffer for received data
- * @param max_resp_len   - size of receive buffer
- *
- * @return length of received data in response or -1 if error
- */
-int  LedgerExchange(unsigned char *command, unsigned int cmd_len, unsigned char *response, unsigned int max_resp_len);
-
-#ifdef __cplusplus
-}
-#endif
-
-#include "device_io.hpp"
-
-#pragma once
-
-namespace hw {
-  namespace io {
-    class device_io_monerujo: device_io {
-    public:
-      device_io_monerujo() {};
-      ~device_io_monerujo() {};
-
-      void init() {};
-      void release() {};
-
-      void connect(void *params) {};
-      void disconnect() {};
-      bool connected() const {return true;}; // monerujo is always connected before it gets here
-
-      // returns number of bytes read or -1 on error
-      int  exchange(unsigned char *command, unsigned int cmd_len, unsigned char *response, unsigned int max_resp_len) {
-        return LedgerExchange(command, cmd_len, response, max_resp_len);
-      }
-    };
-  };
-};
-
-#endif //#if defined(HAVE_MONERUJO)

app/src/main/cpp/monerujo.h

@@ -54,20 +54,22 @@ extern "C"
 {
 #endif
 
+extern const char* const MONERO_VERSION; // the actual monero core version
+
 // 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);
+void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int prehashed, uint64_t height);
 
 inline void slow_hash(const void *data, const size_t length, char *hash) {
-    cn_slow_hash(data, length, hash, 0 /* variant */, 0/*prehashed*/);
+    cn_slow_hash(data, length, hash, 0 /*variant*/, 0 /*prehashed*/, 0 /*height*/);
 }
 
 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*/);
+    cn_slow_hash(data, 200 /*sizeof(union hash_state)*/, hash, variant, 1 /*prehashed*/, 0 /*height*/);
 }
 
 #ifdef __cplusplus

app/src/main/java/com/btchip/comm/android/BTChipTransportAndroidHID.java

@@ -46,8 +46,12 @@ public class BTChipTransportAndroidHID implements BTChipTransport {
         HashMap<String, UsbDevice> deviceList = manager.getDeviceList();
         for (UsbDevice device : deviceList.values()) {
             Timber.d("%04X:%04X %s, %s", device.getVendorId(), device.getProductId(), device.getManufacturerName(), device.getProductName());
-            if ((device.getVendorId() == VID) && (device.getProductId() == PID_HID)) {
+            if (device.getVendorId() == VID) {
-                return device;
+                final int deviceProductId = device.getProductId();
+                for (int pid : PID_HIDS) {
+                    if (deviceProductId == pid)
+                        return device;
+                }
             }
         }
         return null;
@@ -74,7 +78,7 @@ public class BTChipTransportAndroidHID implements BTChipTransport {
     }
 
     private static final int VID = 0x2C97;
-    private static final int PID_HID = 0x0001;
+    private static final int[] PID_HIDS = {0x0001, 0x0004};
 
     private UsbDeviceConnection connection;
     private UsbInterface dongleInterface;

app/src/main/java/com/m2049r/levin/scanner/Dispatcher.java

@@ -18,7 +18,6 @@ package com.m2049r.levin.scanner;
 
 import com.m2049r.xmrwallet.data.NodeInfo;
 
-import java.net.InetSocketAddress;
 import java.util.Collection;
 import java.util.HashSet;
 import java.util.Iterator;
@@ -176,9 +175,9 @@ public class Dispatcher implements PeerRetriever.OnGetPeers {
     }
 
     private void retrievePeers(PeerRetriever peer) {
-        for (InetSocketAddress socketAddress : peer.getPeers()) {
+        for (LevinPeer levinPeer : peer.getPeers()) {
             if (getMorePeers())
-                retrievePeer(new NodeInfo(socketAddress));
+                retrievePeer(new NodeInfo(levinPeer));
             else
                 break;
         }
@@ -186,7 +185,6 @@ public class Dispatcher implements PeerRetriever.OnGetPeers {
 
     public void seedPeers(Collection<NodeInfo> seedNodes) {
         for (NodeInfo node : seedNodes) {
-            node.clear();
             if (node.isFavourite()) {
                 rpcNodes.add(node);
                 if (listener != null) listener.onGet(node);

app/src/main/java/com/m2049r/levin/scanner/LevinPeer.java

@@ -0,0 +1,39 @@
+/*
+ * 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.levin.scanner;
+
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+
+public class LevinPeer {
+    final public InetSocketAddress socketAddress;
+    final public int version;
+    final public long height;
+    final public String top;
+
+
+    public InetSocketAddress getSocketAddress() {
+        return socketAddress;
+    }
+
+    LevinPeer(InetAddress address, int port, int version, long height, String top) {
+        this.socketAddress = new InetSocketAddress(address, port);
+        this.version = version;
+        this.height = height;
+        this.top = top;
+    }
+}

app/src/main/java/com/m2049r/levin/scanner/PeerRetriever.java

@@ -28,7 +28,6 @@ import java.io.DataInput;
 import java.io.DataOutput;
 import java.io.IOException;
 import java.net.InetAddress;
-import java.net.InetSocketAddress;
 import java.net.Socket;
 import java.util.ArrayList;
 import java.util.Date;
@@ -45,7 +44,7 @@ public class PeerRetriever implements Callable<PeerRetriever> {
     static final private byte[] HANDSHAKE = handshakeRequest().asByteArray();
     static final private byte[] FLAGS_RESP = flagsResponse().asByteArray();
 
-    final private List<InetSocketAddress> peers = new ArrayList<>();
+    final private List<LevinPeer> peers = new ArrayList<>();
 
     private NodeInfo nodeInfo;
     private OnGetPeers onGetPeersCallback;
@@ -67,7 +66,7 @@ public class PeerRetriever implements Callable<PeerRetriever> {
         return !peers.isEmpty();
     }
 
-    public List<InetSocketAddress> getPeers() {
+    public List<LevinPeer> getPeers() {
         return peers;
     }
 
@@ -107,12 +106,18 @@ public class PeerRetriever implements Callable<PeerRetriever> {
     }
 
     private void readAddressList(Section section) {
+        Section data = (Section) section.get("payload_data");
+        int topVersion = (Integer) data.get("top_version");
+        long currentHeight = (Long) data.get("current_height");
+        String topId = HexHelper.bytesToHex((byte[]) data.get("top_id"));
+        Timber.d("PAYLOAD_DATA %d/%d/%s", topVersion, currentHeight, topId);
+
         @SuppressWarnings("unchecked")
         List<Section> peerList = (List<Section>) section.get("local_peerlist_new");
         if (peerList != null) {
             for (Section peer : peerList) {
                 Section adr = (Section) peer.get("adr");
-                Byte type = (Byte) adr.get("type");
+                Integer type = (Integer) adr.get("type");
                 if ((type == null) || (type != 1))
                     continue;
                 Section addr = (Section) adr.get("addr");
@@ -121,7 +126,7 @@ public class PeerRetriever implements Callable<PeerRetriever> {
                 Integer ip = (Integer) addr.get("m_ip");
                 if (ip == null)
                     continue;
-                Short sport = (Short) addr.get("m_port");
+                Integer sport = (Integer) addr.get("m_port");
                 if (sport == null)
                     continue;
                 int port = sport;
@@ -133,7 +138,7 @@ public class PeerRetriever implements Callable<PeerRetriever> {
                         && !inet.isLoopbackAddress()
                         && !inet.isMulticastAddress()
                         && !inet.isLinkLocalAddress()) {
-                    peers.add(new InetSocketAddress(inet, port));
+                    peers.add(new LevinPeer(inet, port, topVersion, currentHeight, topId));
                 }
             }
         }

app/src/main/java/com/m2049r/levin/util/LevinReader.java

@@ -83,9 +83,11 @@ public class LevinReader {
             case Section.SERIALIZE_TYPE_INT32:
                 return in.readInt();
             case Section.SERIALIZE_TYPE_UINT16:
+                return in.readUnsignedShort();
             case Section.SERIALIZE_TYPE_INT16:
                 return in.readShort();
             case Section.SERIALIZE_TYPE_UINT8:
+                return in.readUnsignedByte();
             case Section.SERIALIZE_TYPE_INT8:
                 return in.readByte();
             case Section.SERIALIZE_TYPE_OBJECT:
@@ -171,10 +173,10 @@ public class LevinReader {
 
     // this should be in LittleEndianDataInputStream because it has little
     // endian logic
-    private long readRest(int firstByte, int bytes) throws IOException {
+    private long readRest(final int firstByte, final int bytes) throws IOException {
         long result = firstByte;
-        for (int i = 0; i < bytes; i++) {
+        for (int i = 1; i < bytes + 1; i++) {
-            result = result + (in.readUnsignedByte() << 8);
+            result = result + (((long) in.readUnsignedByte()) << (8 * i));
         }
         return result;
     }

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

@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2017-2020 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.PendingIntent;
@@ -15,11 +31,12 @@ import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
 import android.os.PowerManager;
-import android.support.annotation.CallSuper;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.widget.Toast;
 
+import androidx.annotation.CallSuper;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
 import com.m2049r.xmrwallet.data.BarcodeData;
 import com.m2049r.xmrwallet.dialog.ProgressDialog;
 import com.m2049r.xmrwallet.fragment.send.SendFragment;
@@ -30,7 +47,8 @@ import java.io.IOException;
 
 import timber.log.Timber;
 
-public class BaseActivity extends SecureActivity implements GenerateReviewFragment.ProgressListener {
+public class BaseActivity extends SecureActivity
+        implements GenerateReviewFragment.ProgressListener, SubaddressFragment.ProgressListener {
 
     ProgressDialog progressDialog = null;
 
@@ -197,7 +215,7 @@ public class BaseActivity extends SecureActivity implements GenerateReviewFragme
                 if (uri == null) {
                     Toast.makeText(this, getString(R.string.nfc_tag_read_undef), Toast.LENGTH_LONG).show();
                 } else {
-                    BarcodeData bc = BarcodeData.fromQrCode(uri.toString());
+                    BarcodeData bc = BarcodeData.fromString(uri.toString());
                     if (bc == null)
                         Toast.makeText(this, getString(R.string.nfc_tag_read_undef), Toast.LENGTH_LONG).show();
                     else

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

@@ -19,11 +19,6 @@ package com.m2049r.xmrwallet;
 import android.content.Context;
 import android.os.AsyncTask;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.design.widget.FloatingActionButton;
-import android.support.v4.app.Fragment;
-import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuInflater;
@@ -38,12 +33,19 @@ import android.widget.RelativeLayout;
 import android.widget.TextView;
 import android.widget.Toast;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.google.android.material.floatingactionbutton.FloatingActionButton;
 import com.m2049r.xmrwallet.data.NodeInfo;
 import com.m2049r.xmrwallet.layout.NodeInfoAdapter;
 import com.m2049r.xmrwallet.layout.WalletInfoAdapter;
 import com.m2049r.xmrwallet.model.WalletManager;
 import com.m2049r.xmrwallet.util.Helper;
 import com.m2049r.xmrwallet.util.KeyStoreHelper;
+import com.m2049r.xmrwallet.util.NodePinger;
 import com.m2049r.xmrwallet.util.Notice;
 import com.m2049r.xmrwallet.widget.Toolbar;
 
@@ -63,6 +65,7 @@ public class LoginFragment extends Fragment implements WalletInfoAdapter.OnInter
     private List<WalletManager.WalletInfo> walletList = new ArrayList<>();
     private List<WalletManager.WalletInfo> displayedList = new ArrayList<>();
 
+    private View tvGuntherSays;
     private ImageView ivGunther;
     private TextView tvNodeName;
     private TextView tvNodeAddress;
@@ -79,8 +82,6 @@ public class LoginFragment extends Fragment implements WalletInfoAdapter.OnInter
 
         void onWalletDetails(String wallet);
 
-        void onWalletReceive(String wallet);
-
         void onWalletRename(String name);
 
         void onWalletBackup(String name);
@@ -99,8 +100,12 @@ public class LoginFragment extends Fragment implements WalletInfoAdapter.OnInter
 
         void setNode(NodeInfo node);
 
+        NodeInfo getNode();
+
         Set<NodeInfo> getFavouriteNodes();
 
+        Set<NodeInfo> getOrPopulateFavourites();
+
         boolean hasLedger();
     }
 
@@ -128,7 +133,7 @@ public class LoginFragment extends Fragment implements WalletInfoAdapter.OnInter
         activityCallback.setTitle(null);
         activityCallback.setToolbarButton(Toolbar.BUTTON_CREDITS);
         activityCallback.showNet();
-        findBestNode();
+        pingSelectedNode();
     }
 
     @Override
@@ -137,6 +142,7 @@ public class LoginFragment extends Fragment implements WalletInfoAdapter.OnInter
         Timber.d("onCreateView");
         View view = inflater.inflate(R.layout.fragment_login, container, false);
 
+        tvGuntherSays = view.findViewById(R.id.tvGuntherSays);
         ivGunther = view.findViewById(R.id.ivGunther);
         fabScreen = view.findViewById(R.id.fabScreen);
         fab = view.findViewById(R.id.fab);
@@ -177,24 +183,10 @@ public class LoginFragment extends Fragment implements WalletInfoAdapter.OnInter
 
         pbNode = view.findViewById(R.id.pbNode);
         llNode = view.findViewById(R.id.llNode);
-        llNode.setOnClickListener(new View.OnClickListener() {
+        llNode.setOnClickListener(v -> startNodePrefs());
-            @Override
-            public void onClick(View v) {
-                if (activityCallback.getFavouriteNodes().isEmpty())
-                    activityCallback.onNodePrefs();
-                else
-                    findBestNode();
-            }
-        });
         tvNodeName = view.findViewById(R.id.tvNodeName);
         tvNodeAddress = view.findViewById(R.id.tvNodeAddress);
-        view.findViewById(R.id.ibOption).setOnClickListener(new View.OnClickListener() {
+        view.findViewById(R.id.ibRenew).setOnClickListener(v -> findBestNode());
-            @Override
-            public void onClick(View v) {
-                if (activityCallback != null)
-                    activityCallback.onNodePrefs();
-            }
-        });
 
         Helper.hideKeyboard(getActivity());
 
@@ -229,9 +221,6 @@ public class LoginFragment extends Fragment implements WalletInfoAdapter.OnInter
             case R.id.action_info:
                 showInfo(listItem.name);
                 break;
-            case R.id.action_receive:
-                showReceive(listItem.name);
-                break;
             case R.id.action_rename:
                 activityCallback.onWalletRename(listItem.name);
                 break;
@@ -264,19 +253,20 @@ public class LoginFragment extends Fragment implements WalletInfoAdapter.OnInter
         walletList.addAll(walletInfos);
         filterList();
         adapter.setInfos(displayedList);
-        adapter.notifyDataSetChanged();
 
         // deal with Gunther & FAB animation
         if (displayedList.isEmpty()) {
             fab.startAnimation(fab_pulse);
             if (ivGunther.getDrawable() == null) {
-                ivGunther.setImageResource(R.drawable.gunther_desaturated);
+                ivGunther.setImageResource(R.drawable.ic_emptygunther);
+                tvGuntherSays.setVisibility(View.VISIBLE);
             }
         } else {
             fab.clearAnimation();
             if (ivGunther.getDrawable() != null) {
                 ivGunther.setImageDrawable(null);
             }
+            tvGuntherSays.setVisibility(View.GONE);
         }
 
         // remove information of non-existent wallet
@@ -295,10 +285,6 @@ public class LoginFragment extends Fragment implements WalletInfoAdapter.OnInter
         activityCallback.onWalletDetails(name);
     }
 
-    private void showReceive(@NonNull String name) {
-        activityCallback.onWalletReceive(name);
-    }
-
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -411,33 +397,61 @@ public class LoginFragment extends Fragment implements WalletInfoAdapter.OnInter
     }
 
     public void findBestNode() {
-        new AsyncFindBestNode().execute();
+        new AsyncFindBestNode().execute(AsyncFindBestNode.FIND_BEST);
     }
 
-    private class AsyncFindBestNode extends AsyncTask<Void, Void, NodeInfo> {
+    public void pingSelectedNode() {
+        new AsyncFindBestNode().execute(AsyncFindBestNode.PING_SELECTED);
+    }
+
+    private NodeInfo autoselect(Set<NodeInfo> nodes) {
+        if (nodes.isEmpty()) return null;
+        NodePinger.execute(nodes, null);
+        List<NodeInfo> nodeList = new ArrayList<>(nodes);
+        Collections.sort(nodeList, NodeInfo.BestNodeComparator);
+        return nodeList.get(0);
+    }
+
+    private class AsyncFindBestNode extends AsyncTask<Integer, Void, NodeInfo> {
+        final static int PING_SELECTED = 0;
+        final static int FIND_BEST = 1;
+
         @Override
         protected void onPreExecute() {
             super.onPreExecute();
             pbNode.setVisibility(View.VISIBLE);
             llNode.setVisibility(View.INVISIBLE);
-            activityCallback.setNode(null);
         }
 
         @Override
-        protected NodeInfo doInBackground(Void... params) {
+        protected NodeInfo doInBackground(Integer... params) {
-            List<NodeInfo> nodesToTest = new ArrayList<>(activityCallback.getFavouriteNodes());
+            Set<NodeInfo> favourites = activityCallback.getOrPopulateFavourites();
-            Timber.d("testing best node from %d", nodesToTest.size());
+            NodeInfo selectedNode;
-            if (nodesToTest.isEmpty()) return null;
+            if (params[0] == FIND_BEST) {
-            for (NodeInfo node : nodesToTest) {
+                selectedNode = autoselect(favourites);
-                node.testRpcService(); // TODO: do this in parallel?
+            } else if (params[0] == PING_SELECTED) {
-                // no: it's better if it looks like it's doing something
+                selectedNode = activityCallback.getNode();
-            }
+                if (!activityCallback.getFavouriteNodes().contains(selectedNode))
-            Collections.sort(nodesToTest, NodeInfo.BestNodeComparator);
+                    selectedNode = null; // it's not in the favourites (any longer)
-            NodeInfo bestNode = nodesToTest.get(0);
+                if (selectedNode == null)
-            if (bestNode.isValid())
+                    for (NodeInfo node : favourites) {
-                return nodesToTest.get(0);
+                        if (node.isSelected()) {
-            else
+                            selectedNode = node;
+                            break;
+                        }
+                    }
+                if (selectedNode == null) { // autoselect
+                    selectedNode = autoselect(favourites);
+                } else
+                    selectedNode.testRpcService();
+            } else throw new IllegalStateException();
+            if ((selectedNode != null) && selectedNode.isValid()) {
+                activityCallback.setNode(selectedNode);
+                return selectedNode;
+            } else {
+                activityCallback.setNode(null);
                 return null;
+            }
         }
 
         @Override
@@ -445,22 +459,14 @@ public class LoginFragment extends Fragment implements WalletInfoAdapter.OnInter
             if (!isAdded()) return;
             pbNode.setVisibility(View.INVISIBLE);
             llNode.setVisibility(View.VISIBLE);
-            activityCallback.setNode(result);
             if (result != null) {
                 Timber.d("found a good node %s", result.toString());
                 showNode(result);
             } else {
-                if (!activityCallback.getFavouriteNodes().isEmpty()) {
+                tvNodeName.setText(getResources().getText(R.string.node_create_hint));
-                    tvNodeName.setText(getResources().getText(R.string.node_refresh_hint));
+                tvNodeName.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
-                    tvNodeName.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_refresh_black_24dp, 0, 0, 0);
+                tvNodeAddress.setText(null);
-                    tvNodeAddress.setText(null);
+                tvNodeAddress.setVisibility(View.GONE);
-                    tvNodeAddress.setVisibility(View.GONE);
-                } else {
-                    tvNodeName.setText(getResources().getText(R.string.node_create_hint));
-                    tvNodeName.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
-                    tvNodeAddress.setText(null);
-                    tvNodeAddress.setVisibility(View.GONE);
-                }
             }
         }
 
@@ -473,7 +479,11 @@ public class LoginFragment extends Fragment implements WalletInfoAdapter.OnInter
     private void showNode(NodeInfo nodeInfo) {
         tvNodeName.setText(nodeInfo.getName());
         tvNodeName.setCompoundDrawablesWithIntrinsicBounds(NodeInfoAdapter.getPingIcon(nodeInfo), 0, 0, 0);
-        tvNodeAddress.setText(nodeInfo.getAddress());
+        Helper.showTimeDifference(tvNodeAddress, nodeInfo.getTimestamp());
         tvNodeAddress.setVisibility(View.VISIBLE);
     }
+
+    private void startNodePrefs() {
+        activityCallback.onNodePrefs();
+    }
 }

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

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2018-2020 EarlOfEgo, 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.content.Intent;
+import android.os.Bundle;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+
+import com.m2049r.xmrwallet.onboarding.OnBoardingActivity;
+import com.m2049r.xmrwallet.onboarding.OnBoardingManager;
+
+public class MainActivity extends BaseActivity {
+    @Override
+    protected void onCreate(@Nullable final Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (OnBoardingManager.shouldShowOnBoarding(getApplicationContext())) {
+            startActivity(new Intent(this, OnBoardingActivity.class));
+        } else {
+            startActivity(new Intent(this, LoginActivity.class));
+        }
+        finish();
+    }
+}

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

@@ -19,7 +19,7 @@ package com.m2049r.xmrwallet;
 import android.content.Context;
 import android.os.Bundle;
 import android.os.Handler;
-import android.support.v4.app.Fragment;
+import androidx.fragment.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -73,14 +73,7 @@ public class ScannerFragment extends Fragment implements ZXingScannerView.Result
         // * On older devices continuously stopping and resuming camera preview can result in freezing the app.
         // * I don't know why this is the case but I don't have the time to figure out.
         Handler handler = new Handler();
-        handler.postDelayed(new
+        handler.postDelayed(() -> mScannerView.resumeCameraPreview(ScannerFragment.this), 2000);
-
-                                    Runnable() {
-                                        @Override
-                                        public void run() {
-                                            mScannerView.resumeCameraPreview(ScannerFragment.this);
-                                        }
-                                    }, 2000);
     }
 
     @Override