Apply Proguard (#62)

Author: wf9a5m75

example-app/build.gradle.kts

@@ -1,120 +1,249 @@
-plugins {
+plugins {
+
     alias(libs.plugins.android.application)
+
     alias(libs.plugins.kotlin.android)
+
     alias(libs.plugins.kotlin.compose)
+
     id("com.google.android.libraries.mapsplatform.secrets-gradle-plugin")
+
     id("org.jlleitschuh.gradle.ktlint")
 }
 
 ktlint {
+
     android.set(true)
+
     reporters {
+
         reporter(org.jlleitschuh.gradle.ktlint.reporter.ReporterType.PLAIN)
+
         reporter(org.jlleitschuh.gradle.ktlint.reporter.ReporterType.CHECKSTYLE)
     }
 }
 
 android {
+
     namespace = "com.mapconductor.example"
+
     compileSdk = project.property("compileSdk").toString().toInt()
 
     defaultConfig {
+
         applicationId = "com.mapconductor.example"
+
         minSdk = project.property("minSdk").toString().toInt()
+
         targetSdk = project.property("targetSdk").toString().toInt()
+        ndk { abiFilters += listOf("arm64-v8a") }
+        vectorDrawables {
+            useSupportLibrary = true
+        }
+
         versionCode = 1
+
         versionName = "1.0"
+
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
 
     composeOptions {
+
         kotlinCompilerExtensionVersion =
+
             project.property("kotlinCompilerExtensionVersion").toString()
     }
 
     buildTypes {
+
+        debug {
+
+            isMinifyEnabled = false
+
+            proguardFiles(
+                getDefaultProguardFile("proguard-android.txt"),
+                "proguard-rules.pro",
+            )
+        }
+
         release {
-            isMinifyEnabled = project.property("isMinifyEnabled").toString().toBoolean()
+
+            isMinifyEnabled = true
+
+            isShrinkResources = true
+
             proguardFiles(
                 getDefaultProguardFile("proguard-android-optimize.txt"),
                 "proguard-rules.pro",
             )
+
+            // Force legacy ProGuard instead of R8
+
+            buildConfigField("String", "BUILD_CONFIG_VERSION", "\"release\"")
+            signingConfig = signingConfigs.getByName("debug")
         }
     }
+
+    packaging {
+
+        resources {
+
+            excludes += "META-INF/versions/9/previous-compilation-data.bin"
+            excludes += "META-INF/*.kotlin_module"
+            excludes += "META-INF/AL2.0"
+            excludes += "META-INF/LGPL2.1"
+            excludes += "META-INF/androidx.*.version"
+            excludes += "**/*.proto"
+        }
+
+        jniLibs {
+            useLegacyPackaging = true
+        }
+    }
+
     compileOptions {
+
         sourceCompatibility = JavaVersion.toVersion(project.property("javaVersion").toString())
+
         targetCompatibility = JavaVersion.toVersion(project.property("javaVersion").toString())
     }
+
     kotlinOptions {
+
         jvmTarget = project.property("jvmTarget").toString()
     }
+
     buildFeatures {
+
         compose = true
+
+        buildConfig = true
     }
+
+    bundle {
+        language {
+            enableSplit = true
+        }
+        density {
+            enableSplit = true
+        }
+        abi {
+            enableSplit = true
+        }
+    }
+
     testOptions {
+
         unitTests {
+
             isIncludeAndroidResources = true
         }
     }
 }
+
 secrets {
+
     // To add your Maps API key to this project:
+
     // 1. If the secrets.properties file does not exist, create it in the same folder as the local.properties file.
+
     // 2. Add this line, where YOUR_API_KEY is your API key:
+
     //        MAPS_API_KEY=YOUR_API_KEY
+
     propertiesFileName = "secrets.properties"
 
     // A properties file containing default secret values. This file can be
+
     // checked in version control.
+
     defaultPropertiesFileName = "local.defaults.properties"
 }
 
 dependencies {
 
     implementation(libs.androidx.core.ktx)
+
     implementation(libs.androidx.lifecycle.runtime.ktx)
+
     implementation(libs.androidx.activity.compose)
+
     implementation(libs.androidx.lifecycle.viewmodel.compose)
+
     implementation(platform(libs.androidx.compose.bom))
+
     implementation(libs.androidx.ui)
+
     implementation(libs.androidx.ui.graphics)
+
     implementation(libs.androidx.ui.tooling.preview)
+
     implementation(libs.androidx.material3)
+
     implementation(libs.androidx.appcompat)
+
     implementation(platform(libs.firebase.bom))
 
     // Google Maps SDK
+
     implementation(libs.play.services.maps)
+
     // Here Maps SDK
+
     val hereSdkAarName: String by project
+
     implementation(files("${rootProject.projectDir}/libs/$hereSdkAarName.aar"))
+
     // Mapbox SDK
+
     implementation(libs.mapbox.android)
 
     // ArcGIS Maps for Kotlin - SDK dependency
+
     implementation(libs.arcgis.maps.kotlin)
+
     implementation(platform(libs.arcgis.maps.kotlin.toolkit.bom))
+
     implementation(libs.arcgis.maps.kotlin.toolkit.geoview.compose)
+
     implementation(libs.arcgis.maps.kotlin.toolkit.authentication)
 
     // Map Conductor
+
     implementation(project(":mapconductor-core"))
+
     implementation(project(":mapconductor-icons"))
+
     implementation(project(":mapconductor-for-googlemaps"))
+
     implementation(project(":mapconductor-for-here"))
+
     implementation(project(":mapconductor-for-mapbox"))
+
     implementation(project(":mapconductor-for-arcgis"))
+
     implementation(libs.androidx.vectordrawable)
+
     implementation(libs.androidx.room.runtime.android)
 
     testImplementation(libs.junit)
+
     testImplementation(libs.androidx.core)
+
     testImplementation(libs.androidx.junit)
+
     testImplementation(libs.androidx.runner)
+
     androidTestImplementation(libs.androidx.junit)
+
     androidTestImplementation(libs.androidx.espresso.core)
+
     androidTestImplementation(platform(libs.androidx.compose.bom))
+
     androidTestImplementation(libs.androidx.ui.test.junit4)
+
     debugImplementation(libs.androidx.ui.tooling)
+
     debugImplementation(libs.androidx.ui.test.manifest)
 }

example-app/proguard-rules.pro

@@ -1,21 +1,65 @@
-# Add project specific ProGuard rules here.
-# You can control the set of applied configuration files using the
-# proguardFiles setting in build.gradle.
-#
-# For more details, see
-#   http://developer.android.com/guide/developing/tools/proguard.html
-
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
-
-# Uncomment this to preserve the line number information for
-# debugging stack traces.
-#-keepattributes SourceFile,LineNumberTable
-
-# If you keep the line number information, uncomment this to
-# hide the original source file name.
-#-renamesourcefileattribute SourceFile
+# MapConductor Example App ProGuard Rules
+
+# Keep line number information for debugging stack traces
+-keepattributes SourceFile,LineNumberTable
+
+# Optimization settings
+-optimizations !code/simplification/arithmetic,!code/simplification/cast,!field/*,!class/merging/*
+-optimizationpasses 5
+-allowaccessmodification
+-dontpreverify
+
+# Obfuscation settings (remove -dontobfuscate for better compression)
+-repackageclasses ''
+-allowaccessmodification
+
+# Keep essential Android classes
+-keep public class * extends android.app.Activity
+-keep public class * extends android.app.Application
+-keep public class * extends android.app.Service
+-keep public class * extends android.content.BroadcastReceiver
+-keep public class * extends android.content.ContentProvider
+
+# Keep Compose essentials only
+-keep class androidx.compose.runtime.Composable
+-keep class * extends androidx.activity.ComponentActivity {
+    public <init>(...);
+}
+
+# Keep ViewModel constructors
+-keep class * extends androidx.lifecycle.ViewModel {
+    <init>(...);
+}
+
+# Keep only essential MapConductor classes
+-keep class com.mapconductor.example.MainActivity { *; }
+-keep class com.mapconductor.example.MapConductorExampleApplication { *; }
+
+# Keep data classes used in UI
+-keepclassmembers class com.mapconductor.example.pages.stores.DemoData {
+    <fields>;
+    <methods>;
+}
+
+# Keep Parcelable implementations
+-keep class * implements android.os.Parcelable {
+    public static final android.os.Parcelable$Creator *;
+}
+
+# Keep serialization
+-keepattributes Signature
+-keepclassmembers class * implements java.io.Serializable {
+    static final long serialVersionUID;
+    private static final java.io.ObjectStreamField[] serialPersistentFields;
+    private void writeObject(java.io.ObjectOutputStream);
+    private void readObject(java.io.ObjectInputStream);
+    java.lang.Object writeReplace();
+    java.lang.Object readResolve();
+}
+
+# Remove logging in release builds
+-assumenosideeffects class android.util.Log {
+    public static *** d(...);
+    public static *** v(...);
+    public static *** i(...);
+}

gradle.properties

@@ -1,4 +1,4 @@
-# Project-wide Gradle settings.
+# Project-wide Gradle settings.
 # IDE (e.g. Android Studio) users:
 # Gradle settings configured through the IDE *will override*
 # any settings specified in this file.
@@ -32,4 +32,8 @@ versionCode=1
 versionName=1.0.0
 javaVersion=11
 jvmTarget=11
-isMinifyEnabled=false
+isMinifyEnabled=true
+# R8 settings for handling duplicate classes
+android.enableR8.fullMode=true
+android.r8.ignoreAllowListBinaryFiles=true
+android.enableJetifier=true

mapconductor-core/build.gradle.kts

@@ -1,4 +1,4 @@
-plugins {
+plugins {
     id("com.android.library")
     id("org.jetbrains.kotlin.android")
     id("maven-publish")
@@ -21,6 +21,7 @@ android {
     defaultConfig {
         minSdk = project.property("minSdk").toString().toInt()
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles("consumer-rules.pro")
     }
 
     buildFeatures {
@@ -32,10 +33,17 @@ android {
     }
 
     buildTypes {
+        debug {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android.txt"),
+                "proguard-rules.pro",
+            )
+        }
         release {
-            isMinifyEnabled = project.property("isMinifyEnabled").toString().toBoolean()
+            isMinifyEnabled = false
             proguardFiles(
-                getDefaultProguardFile("proguard-android-optimize.txt"),
+                getDefaultProguardFile("proguard-android.txt"),
                 "proguard-rules.pro",
             )
         }

mapconductor-core/consumer-rules.pro

@@ -0,0 +1,3 @@
+# Keep Settings and its nested classes for consumers
+-keep class com.mapconductor.settings.Settings { *; }
+-keep class com.mapconductor.settings.Settings$* { *; }