Add support for split build per architecture
Summary: This allows everyone to deploy significantly smaller APKs to they Play Store by building separate APKs for ARM, x86 architectures. For a simple app, a release APK minified with Produard: - Universal APK is **7MB** - x86 APK is **4.6MB** (34% reduction) - ARM APK is **3.7MB** (47% reduction) Created a sample project, uncommented `// include "armeabi-v7a", 'x86'`: cd android ./gradlew assembleDebug Three APKs were created, unzipped each: one has only x86 binaries, one has ARM binaries, one has both. ./gradlew assembleRelease Three APKs were created, JS bundle is correcly added to assets. react-native run-android The correct APK is installed on the emulator and the app runs fine (Gradle output: "Installing APK 'app-x86-debug.apk'"). With the line commented out the behavior is exactly the same as before, only one universal APK is built. Checked that version codes are set correctly as described in http://tools.android.com/tech-docs/new-build-system/user-guide/apk-splits http://developer.android.com/intl/ru/google/play/publishing/multiple-apks.html Closes https://github.com/facebook/react-native/pull/5160 Reviewed By: svcscm Differential Revision: D2811443 Pulled By: mkonicek fb-gh-sync-id: 97b22b9cd567e53b8adac36669b90768458b7a55
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@ -1,5 +1,7 @@
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apply plugin: "com.android.application"
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import com.android.build.OutputFile
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/**
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* The react.gradle file registers two tasks: bundleDebugJsAndAssets and bundleReleaseJsAndAssets.
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* These basically call `react-native bundle` with the correct arguments during the Android build
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@ -49,6 +51,22 @@ apply plugin: "com.android.application"
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apply from: "react.gradle"
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/**
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* Set this to true to create three separate APKs instead of one:
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* - A universal APK that works on all devices
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* - An APK that only works on ARM devices
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* - An APK that only works on x86 devices
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* The advantage is the size of the APK is reduced by about 4MB.
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* Upload all the APKs to the Play Store and people will download
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* the correct one based on the CPU architecture of their device.
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*/
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def enableSeparateBuildPerCPUArchitecture = false
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/**
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* Run Proguard to shrink the Java bytecode in release builds.
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*/
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def enableProguardInReleaseBuilds = true
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android {
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compileSdkVersion 23
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buildToolsVersion "23.0.1"
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@ -63,12 +81,33 @@ android {
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abiFilters "armeabi-v7a", "x86"
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}
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}
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splits {
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abi {
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enable enableSeparateBuildPerCPUArchitecture
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universalApk true
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reset()
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include "armeabi-v7a", "x86"
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}
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}
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buildTypes {
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release {
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minifyEnabled false // Set this to true to enable Proguard
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minifyEnabled enableProguardInReleaseBuilds
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proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
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}
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}
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// applicationVariants are e.g. debug, release
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applicationVariants.all { variant ->
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variant.outputs.each { output ->
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// For each separate APK per architecture, set a unique version code as described here:
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// http://tools.android.com/tech-docs/new-build-system/user-guide/apk-splits
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def versionCodes = ["armeabi-v7a":1, "x86":2]
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def abi = output.getFilter(OutputFile.ABI)
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if (abi != null) { // null for the universal-debug, universal-release variants
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output.versionCodeOverride =
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versionCodes.get(abi) * 1048576 + defaultConfig.versionCode
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}
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}
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}
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}
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dependencies {
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@ -74,14 +74,33 @@ task bundleReleaseJsAndAssets(type: Exec) {
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enabled config.bundleInRelease ?: true
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}
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void runBefore(String dependentTaskName, Task task) {
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Task dependentTask = tasks.findByPath(dependentTaskName);
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if (dependentTask != null) {
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dependentTask.dependsOn task
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}
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}
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gradle.projectsEvaluated {
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// hook bundleDebugJsAndAssets into the android build process
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bundleDebugJsAndAssets.dependsOn mergeDebugResources
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bundleDebugJsAndAssets.dependsOn mergeDebugAssets
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processDebugResources.dependsOn bundleDebugJsAndAssets
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runBefore('processArmeabi-v7aDebugResources', bundleDebugJsAndAssets)
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runBefore('processX86DebugResources', bundleDebugJsAndAssets)
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runBefore('processUniversalDebugResources', bundleDebugJsAndAssets)
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runBefore('processDebugResources', bundleDebugJsAndAssets)
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// hook bundleReleaseJsAndAssets into the android build process
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bundleReleaseJsAndAssets.dependsOn mergeReleaseResources
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bundleReleaseJsAndAssets.dependsOn mergeReleaseAssets
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processReleaseResources.dependsOn bundleReleaseJsAndAssets
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runBefore('processArmeabi-v7aReleaseResources', bundleReleaseJsAndAssets)
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runBefore('processX86ReleaseResources', bundleReleaseJsAndAssets)
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runBefore('processUniversalReleaseResources', bundleReleaseJsAndAssets)
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runBefore('processReleaseResources', bundleReleaseJsAndAssets)
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}
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