add x86_64 arm64-v8a support. Fixes facebook#2814 (facebook#18754)

Summary:
add arm64 support, related issue : facebook#2814.
If we are okay with binary aar android-jsc, then the pr can be directly merged. Otherwise merge facebookarchive/android-jsc#30 first and do a new release.

RNTester all variant works. You can also test the apk from here: https://github.com/gengjiawen/react-native/releases/tag/v0.56beta.

facebookarchive/android-jsc#30.

 [ANDROID] [ENHANCEMENT] [ABI] - add x86_64 arm64-v8a support.

Differential Revision: D9491481

Pulled By: hramos

fbshipit-source-id: d6ec6992768eb0c0866a0317273e09fae5b8935e

Author: gengjiawen

RNTester/android/app/build.gradle

@@ -76,7 +76,7 @@ apply from: "../../../react.gradle"
  * Upload all the APKs to the Play Store and people will download
  * the correct one based on the CPU architecture of their device.
  */
-def enableSeparateBuildPerCPUArchitecture = false
+def enableSeparateBuildPerCPUArchitecture = true
 
 /**
  * Run Proguard to shrink the Java bytecode in release builds.
@@ -93,9 +93,6 @@ android {
         targetSdkVersion 27
         versionCode 1
         versionName "1.0"
-        ndk {
-            abiFilters "armeabi-v7a", "x86"
-        }
     }
     signingConfigs {
         release {
@@ -110,7 +107,7 @@ android {
             enable enableSeparateBuildPerCPUArchitecture
             universalApk false
             reset()
-            include "armeabi-v7a", "x86"
+            include "armeabi-v7a", "x86", "x86_64", "arm64-v8a"
         }
     }
     buildTypes {
@@ -123,20 +120,6 @@ android {
             signingConfig signingConfigs.release
         }
     }
-
-    // applicationVariants are e.g. debug, release
-    applicationVariants.all { variant ->
-        variant.outputs.each { output ->
-            // For each separate APK per architecture, set a unique version code as described here:
-            // http://tools.android.com/tech-docs/new-build-system/user-guide/apk-splits
-            def versionCodes = ["armeabi-v7a":1, "x86":2]
-            def abi = output.getFilter(OutputFile.ABI)
-            if (abi != null) {  // null for the universal-debug, universal-release variants
-                output.versionCodeOverride =
-                        versionCodes.get(abi) * 1048576 + defaultConfig.versionCode
-            }
-        }
-    }
 }
 
 dependencies {

ReactAndroid/build.gradle

@@ -304,7 +304,7 @@ dependencies {
     api "com.squareup.okhttp3:okhttp:${OKHTTP_VERSION}"
     api "com.squareup.okhttp3:okhttp-urlconnection:${OKHTTP_VERSION}"
     api 'com.squareup.okio:okio:1.14.0'
-    compile 'org.webkit:android-jsc:r174650'
+    compile project(':android-jsc')
 
     testImplementation "junit:junit:${JUNIT_VERSION}"
     testImplementation "org.powermock:powermock-api-mockito:${POWERMOCK_VERSION}"

ReactAndroid/src/main/jni/Application.mk

@@ -1,6 +1,6 @@
 APP_BUILD_SCRIPT := Android.mk
 
-APP_ABI := armeabi-v7a x86
+APP_ABI := armeabi-v7a x86 arm64-v8a x86_64
 APP_PLATFORM := android-16
 
 APP_MK_DIR := $(dir $(lastword $(MAKEFILE_LIST)))

ReactAndroid/src/main/jni/third-party/double-conversion/Android.mk

@@ -19,4 +19,4 @@ LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)
 CXX11_FLAGS := -Wno-unused-variable -Wno-unused-local-typedefs
 LOCAL_CFLAGS += $(CXX11_FLAGS)
 
-include $(BUILD_STATIC_LIBRARY)
+include $(BUILD_STATIC_LIBRARY)

android-jsc/android-jsc.aar

@@ -0,0 +1,2 @@
+configurations.maybeCreate("default")
+artifacts.add("default", file('android-jsc.aar'))

android-jsc/build.gradle

@@ -103,16 +103,13 @@ android {
         targetSdkVersion rootProject.ext.targetSdkVersion
         versionCode 1
         versionName "1.0"
-        ndk {
-            abiFilters "armeabi-v7a", "x86"
-        }
     }
     splits {
         abi {
             reset()
             enable enableSeparateBuildPerCPUArchitecture
             universalApk false  // If true, also generate a universal APK
-            include "armeabi-v7a", "x86"
+            include "armeabi-v7a", "x86", "arm64-v8a"
         }
     }
     buildTypes {
@@ -126,7 +123,7 @@ android {
         variant.outputs.each { output ->
             // For each separate APK per architecture, set a unique version code as described here:
             // http://tools.android.com/tech-docs/new-build-system/user-guide/apk-splits
-            def versionCodes = ["armeabi-v7a":1, "x86":2]
+            def versionCodes = ["armeabi-v7a":1, "x86":2, "arm64-v8a": 3]
             def abi = output.getFilter(OutputFile.ABI)
             if (abi != null) {  // null for the universal-debug, universal-release variants
                 output.versionCodeOverride =

local-cli/templates/HelloWorld/android/app/build.gradle

@@ -3,4 +3,6 @@
 // This source code is licensed under the MIT license found in the
 // LICENSE file in the root directory of this source tree.
 
-include ':ReactAndroid', ':RNTester:android:app'
+include ':ReactAndroid'
+include ':RNTester:android:app'
+include ':android-jsc'