Apollo: Release source code for 55.4 (1504)

Author: rocket-muun

README.md

@@ -6,7 +6,7 @@ This is the source code repository for muun's android wallet. Muun is a non-cust
 
 ## Runtime requirements
 
-* Android version 4.4 (API level 19) or higher
+* Android version 5.0 (API level 21) or higher
 * Google Play services
 
 ## Structure

android/CHANGELOG.md

@@ -6,6 +6,22 @@ follow [https://changelog.md/](https://changelog.md/) guidelines.
 
 ## [Unreleased]
 
+## [55.4] - 2026-01-29
+
+### CHANGED
+
+- Bump `minSdk` to 21
+- 6-digit pin for new users
+- Replace ButterKnife with ViewBinding in various screens
+
+### ADDED
+
+- Biometrics support for app unlocking
+
+### FIXED
+
+- Input fee bug not recognizing decimal separator in Spanish
+
 ## [55.3] - 2025-10-08
 
 ### CHANGED

android/.dockeringnore android/Dockerfile.dockerignoreandroid/.dockeringnore renamed to android/Dockerfile.dockerignore

@@ -2,7 +2,15 @@
 **
 
 # ⚠️ whitelist only necessary things
+!.git/
 !android/
-!tools/
+!common/
+!gradlew
+!gradle.properties
+!gradle/
+!build.gradle
+!settings.gradle
 !libwallet/
+!linters/
 !prover/
+!tools/

android/apolloui/build.gradle

@@ -35,6 +35,9 @@ apply from: "${project.rootDir}/linters/pmd/check-android.gradle"
 
 
 check.dependsOn 'lint'
+tasks.matching { it.name.startsWith('lint') }.configureEach {task ->
+    task.dependsOn(':common:animalsnifferMain')
+}
 
 /**
  * Insert quotes around string fields that are injected literally into code, like a C macro.
@@ -87,7 +90,7 @@ static def configExternalLinks(productFlavor, String host) {
 android {
     namespace "io.muun.apollo"
 
-    compileSdk 34
+    compileSdk 35
 
     buildFeatures {
         viewBinding true
@@ -96,17 +99,13 @@ android {
 
     defaultConfig {
         applicationId "io.muun.apollo"
-        minSdk 19
+        minSdk 21
         targetSdk 35
-        versionCode 1503
-        versionName "55.3"
-
-        // Needed to make sure these classes are available in the main DEX file for API 19
-        // See: https://spin.atomicobject.com/2018/07/16/support-kitkat-multidex/
-        multiDexKeepProguard file('./proguard/proguard-multidex.pro')
+        versionCode 1504
+        versionName "55.4"
 
         // Use default Proguard file, bundled with Android Gradle Plugin
-        // See: https://foreachi.com/android/androidx-proguard/
+        // See: https://issuetracker.google.com/issues/126772206
         proguardFiles getDefaultProguardFile("proguard-android.txt")
         proguardFiles files {
             file('./proguard').listFiles().findAll { it.path.endsWith('.pro') }
@@ -146,7 +145,6 @@ android {
             versionNameSuffix "-debug"
 
             debuggable true
-            multiDexEnabled true
             minifyEnabled false
             shrinkResources false
 
@@ -165,14 +163,12 @@ android {
         // Debuggable enabled has priority over the other flags, and those optimizations are going to be disabled.
         minified {
             debuggable true
-            multiDexEnabled true
             minifyEnabled true
             shrinkResources true
         }
 
         release {
             debuggable false
-            multiDexEnabled true
             minifyEnabled true
             shrinkResources true
 
@@ -455,8 +451,7 @@ dependencies {
     implementation "org.jetbrains.kotlinx:kotlinx-serialization-json:1.2.1"
 
     // Detect root devices (for error reports metadata and fraud control)
-    // TODO: go back to `com.scottyab:rootbeer-lib:x.x.x` after dropping API 19 support
-    implementation 'com.github.muun:rootbeer:0.1.0'
+    implementation 'com.scottyab:rootbeer-lib:0.1.1'
 
     // Google Play Integrity
     implementation 'com.google.android.play:integrity:1.1.0'
@@ -490,11 +485,11 @@ dependencies {
     implementation 'androidx.preference:preference:1.0.0'
     def emojiVersion = "1.1.0" // We need targetSdkVersion 32 to bump
     implementation "androidx.emoji2:emoji2:$emojiVersion"
-    implementation "androidx.activity:activity:1.8.2"
+    // We need targetSdkVersion 36 to bump
+    implementation "androidx.activity:activity-ktx:1.10.1"
 
     // Remove gridlayout-v7 once we drop minSDK version 19
     implementation 'androidx.gridlayout:gridlayout:1.0.0'
-    implementation 'androidx.multidex:multidex:2.0.0'
     // We need to specify versions for customtabs and cardview because some dependencies use them
     implementation 'androidx.browser:browser:1.0.0'
     implementation 'androidx.cardview:cardview:1.0.0'
@@ -577,6 +572,9 @@ dependencies {
 
     // Fancy animations
     implementation 'com.airbnb.android:lottie:3.5.0'
+
+    // Biometrics
+    implementation 'androidx.biometric:biometric:1.4.0-alpha04'
 }
 
 configurations {

android/apolloui/proguard/proguard-multidex.pro

@@ -3,6 +3,8 @@
         xmlns:tools="http://schemas.android.com/tools"
 >
 
+    <uses-sdk tools:overrideLibrary="androidx.biometric, androidx.biometric.ktx" />
+
     <!-- Permissions -->
 
     <uses-feature android:name="android.hardware.camera"/>
@@ -418,6 +420,12 @@
         />
 
         <!-- Providers -->
+        <provider
+                android:name=".presentation.app.trace.StartupTraceProvider"
+                android:authorities="${applicationId}.muun-tracer"
+                android:exported="false">
+        </provider>
+
         <provider
                 android:name="androidx.core.content.FileProvider"
                 android:authorities="${applicationId}.cache.fileprovider"

android/apolloui/src/main/AndroidManifest.xml

@@ -64,7 +64,7 @@ class ActivityManagerInfoProvider(context: Context) {
 
     val exitReasons: List<ApplicationExitInfo>
         get() {
-            return if (OS.supportsgetHistoricalProcessExitReasons()) {
+            return if (OS.supportsGetHistoricalProcessExitReasons()) {
                 activityManager.getHistoricalProcessExitReasons(
                     Globals.INSTANCE.applicationId,
                     0,

android/apolloui/src/main/java/io/muun/apollo/data/afs/ActivityManagerInfoProvider.kt

@@ -0,0 +1,22 @@
+package io.muun.apollo.data.afs
+
+import org.threeten.bp.Instant
+import org.threeten.bp.ZoneOffset
+
+object AfsUtils {
+    /**
+     * Normalizes the given epoch time to UTC midnight, reducing it to day-level granularity.
+     *
+     * The returned value represents the epoch at 00:00:00.000 UTC of the same day
+     * as the input timestamp.
+     */
+    @JvmStatic
+    fun epochAtUtcMidnight(epochMillis: Long): Long {
+        return Instant.ofEpochMilli(epochMillis)
+            .atZone(ZoneOffset.UTC)
+            .toLocalDate()
+            .atStartOfDay(ZoneOffset.UTC)
+            .toInstant()
+            .toEpochMilli()
+    }
+}

android/apolloui/src/main/java/io/muun/apollo/data/afs/AfsUtils.kt

@@ -1,13 +1,19 @@
 package io.muun.apollo.data.afs
 
+import io.muun.apollo.data.os.GooglePlayHelper
+import io.muun.apollo.data.os.GooglePlayServicesHelper
 import io.muun.apollo.domain.model.BackgroundEvent
 import kotlinx.serialization.Serializable
 import javax.inject.Inject
 
 class BackgroundExecutionMetricsProvider @Inject constructor(
-    private val metricsProvider: MetricsProvider
+    private val metricsProvider: MetricsProvider,
+    private val googlePlayServicesHelper: GooglePlayServicesHelper,
+    private val googlePlayHelper: GooglePlayHelper,
 ) {
 
+    private val playServicesInfo = googlePlayServicesHelper.getPlayServicesInfo()
+
     fun run(): BackgroundExecutionMetrics =
         BackgroundExecutionMetrics(
             metricsProvider.currentTimeMillis,
@@ -33,9 +39,9 @@ class BackgroundExecutionMetricsProvider @Inject constructor(
             metricsProvider.bridgeEnabled,
             metricsProvider.bridgeDaemonStatus,
             metricsProvider.developerEnabled,
-            metricsProvider.proxyHttp,
-            metricsProvider.proxyHttps,
-            metricsProvider.proxySocks,
+            metricsProvider.proxyHttpType,
+            metricsProvider.proxyHttpsType,
+            metricsProvider.proxySocksType,
             metricsProvider.autoDateTime,
             metricsProvider.autoTimeZone,
             metricsProvider.timeZoneId,
@@ -55,7 +61,18 @@ class BackgroundExecutionMetricsProvider @Inject constructor(
             metricsProvider.latestBackgroundTimes,
             metricsProvider.internalLevel.let { "${it.first};${it.second}" },
             metricsProvider.batteryRemainState,
-            metricsProvider.isCharging
+            metricsProvider.isCharging,
+            metricsProvider.defaultFsDate,
+            metricsProvider.androidFsDate,
+            metricsProvider.hasUniqueBaseDateInExternalStorage,
+            metricsProvider.externalStorageMinDate,
+            metricsProvider.hasNewEntriesInAppExternalStorage,
+            playServicesInfo.versionCode,
+            playServicesInfo.versionName,
+            playServicesInfo.clientVersionCode,
+            googlePlayHelper.versionCode,
+            googlePlayHelper.versionName,
+            metricsProvider.buildInfo
         )
 
     @Suppress("ArrayInDataClass")
@@ -84,9 +101,9 @@ class BackgroundExecutionMetricsProvider @Inject constructor(
         private val bridgeEnabled: Int,
         private val bridgeDaemonStatus: String,
         private val developerEnabled: Int,
-        private val proxyHttp: String,
-        private val proxyHttps: String,
-        private val proxySocks: String,
+        private val proxyHttpType: Int,
+        private val proxyHttpsType: Int,
+        private val proxySocksType: Int,
         private val autoDateTime: Int,
         private val autoTimeZone: Int,
         private val timeZoneId: String,
@@ -106,6 +123,17 @@ class BackgroundExecutionMetricsProvider @Inject constructor(
         private val bkgTimes: List<BackgroundEvent>,
         private val internalLevel: String,
         private val batteryRemainState: String,
-        private val isCharging: Boolean?
+        private val isCharging: Boolean?,
+        private val defaultFsDate: Long,
+        private val androidFsDate: Long,
+        private var hasUniqueBaseDateInExternalStorage: Int,
+        private var externalStorageMinDate: Long,
+        private var hasNewEntriesInAppExternalStorage: Int,
+        private var googlePlayServicesVersionCode: Long,
+        private var googlePlayServicesVersionName: String,
+        private var googlePlayServicesClientVersionCode: Int,
+        private var googlePlayVersionCode: Long,
+        private var googlePlayVersionName: String,
+        private var buildInfo: BuildInfo
     )
 }

android/apolloui/src/main/java/io/muun/apollo/data/afs/BackgroundExecutionMetricsProvider.kt

@@ -8,12 +8,13 @@ data class BuildInfo(
     val bootloader: String,
     val manufacturer: String,
     val brand: String,
+    val display: String,
     val host: String,
     val type: String,
     val radioVersion: String?,
     val securityPatch: String,
-    // These fields are null on older app versions
-    val model: String?,
-    val product: String?,
-    val release: String?
+    val model: String,
+    val product: String,
+    val release: String,
+    val date: Long
 )