feat: add react native 69+ support (old arch) (#8)

example/android/app/build.gradle

@@ -118,6 +118,14 @@ def jscFlavor = 'org.webkit:android-jsc:+'
  */
 def enableHermes = project.ext.react.get("enableHermes", false);
 
+/**
+ * Architectures to build native code for.
+ */
+def reactNativeArchitectures() {
+    def value = project.getProperties().get("reactNativeArchitectures")
+    return value ? value.split(",") : ["armeabi-v7a", "x86", "x86_64", "arm64-v8a"]
+}
+
 android {
     ndkVersion rootProject.ext.ndkVersion
     compileSdkVersion rootProject.ext.compileSdkVersion
@@ -133,13 +141,81 @@ android {
         targetSdkVersion rootProject.ext.targetSdkVersion
         versionCode 1
         versionName "1.0"
+        buildConfigField "boolean", "IS_NEW_ARCHITECTURE_ENABLED", isNewArchitectureEnabled().toString()
+
+        if (isNewArchitectureEnabled()) {
+            // We configure the NDK build only if you decide to opt-in for the New Architecture.
+            externalNativeBuild {
+                ndkBuild {
+                    arguments "APP_PLATFORM=android-21",
+                        "APP_STL=c++_shared",
+                        "NDK_TOOLCHAIN_VERSION=clang",
+                        "GENERATED_SRC_DIR=$buildDir/generated/source",
+                        "PROJECT_BUILD_DIR=$buildDir",
+                        "REACT_ANDROID_DIR=$rootDir/../node_modules/react-native/ReactAndroid",
+                        "REACT_ANDROID_BUILD_DIR=$rootDir/../node_modules/react-native/ReactAndroid/build",
+                        "NODE_MODULES_DIR=$rootDir/../node_modules"
+                    cFlags "-Wall", "-Werror", "-fexceptions", "-frtti", "-DWITH_INSPECTOR=1"
+                    cppFlags "-std=c++17"
+                    // Make sure this target name is the same you specify inside the
+                    // src/main/jni/Android.mk file for the `LOCAL_MODULE` variable.
+                    targets "example_appmodules"
+                }
+            }
+            if (!enableSeparateBuildPerCPUArchitecture) {
+                ndk {
+                    abiFilters (*reactNativeArchitectures())
+                }
+            }
+        }
     }
+
+    if (isNewArchitectureEnabled()) {
+        // We configure the NDK build only if you decide to opt-in for the New Architecture.
+        externalNativeBuild {
+            ndkBuild {
+                path "$projectDir/src/main/jni/Android.mk"
+            }
+        }
+        def reactAndroidProjectDir = project(':ReactAndroid').projectDir
+        def packageReactNdkDebugLibs = tasks.register("packageReactNdkDebugLibs", Copy) {
+            dependsOn(":ReactAndroid:packageReactNdkDebugLibsForBuck")
+            from("$reactAndroidProjectDir/src/main/jni/prebuilt/lib")
+            into("$buildDir/react-ndk/exported")
+        }
+        def packageReactNdkReleaseLibs = tasks.register("packageReactNdkReleaseLibs", Copy) {
+            dependsOn(":ReactAndroid:packageReactNdkReleaseLibsForBuck")
+            from("$reactAndroidProjectDir/src/main/jni/prebuilt/lib")
+            into("$buildDir/react-ndk/exported")
+        }
+        afterEvaluate {
+            // If you wish to add a custom TurboModule or component locally,
+            // you should uncomment this line.
+            // preBuild.dependsOn("generateCodegenArtifactsFromSchema")
+            preDebugBuild.dependsOn(packageReactNdkDebugLibs)
+            preReleaseBuild.dependsOn(packageReactNdkReleaseLibs)
+            // Due to a bug inside AGP, we have to explicitly set a dependency
+            // between configureNdkBuild* tasks and the preBuild tasks.
+            // This can be removed once this is solved: https://issuetracker.google.com/issues/207403732
+            configureNdkBuildRelease.dependsOn(preReleaseBuild)
+            configureNdkBuildDebug.dependsOn(preDebugBuild)
+            reactNativeArchitectures().each { architecture ->
+                tasks.findByName("configureNdkBuildDebug[${architecture}]")?.configure {
+                    dependsOn("preDebugBuild")
+                }
+                tasks.findByName("configureNdkBuildRelease[${architecture}]")?.configure {
+                    dependsOn("preReleaseBuild")
+                }
+            }
+        }
+    }
+
     splits {
         abi {
             reset()
             enable enableSeparateBuildPerCPUArchitecture
             universalApk false  // If true, also generate a universal APK
-            include "armeabi-v7a", "x86", "arm64-v8a", "x86_64"
+            include (*reactNativeArchitectures())
         }
     }
     signingConfigs {
@@ -153,11 +229,6 @@ android {
     buildTypes {
         debug {
             signingConfig signingConfigs.debug
-            if (nativeArchitectures) {
-                ndk {
-                    abiFilters nativeArchitectures.split(',')
-                }
-            }
         }
         release {
             // Caution! In production, you need to generate your own keystore file.
@@ -192,6 +263,7 @@ android {
 
 dependencies {
     implementation fileTree(dir: "libs", include: ["*.jar"])
+
     //noinspection GradleDynamicVersion
     implementation "com.facebook.react:react-native:+"  // From node_modules
 
@@ -209,16 +281,33 @@ dependencies {
     }
 
     if (enableHermes) {
-        def hermesPath = "../../node_modules/hermes-engine/android/";
-        debugImplementation files(hermesPath + "hermes-debug.aar")
-        releaseImplementation files(hermesPath + "hermes-release.aar")
+        //noinspection GradleDynamicVersion
+        implementation("com.facebook.react:hermes-engine:+") { // From node_modules
+            exclude group:'com.facebook.fbjni'
+        }
     } else {
         implementation jscFlavor
     }
 
     implementation project(':mattermost.emm')
 }
 
+if (isNewArchitectureEnabled()) {
+    // If new architecture is enabled, we let you build RN from source
+    // Otherwise we fallback to a prebuilt .aar bundled in the NPM package.
+    // This will be applied to all the imported transtitive dependency.
+    configurations.all {
+        resolutionStrategy.dependencySubstitution {
+            substitute(module("com.facebook.react:react-native"))
+                    .using(project(":ReactAndroid"))
+                    .because("On New Architecture we're building React Native from source")
+            substitute(module("com.facebook.react:hermes-engine"))
+                    .using(project(":ReactAndroid:hermes-engine"))
+                    .because("On New Architecture we're building Hermes from source")
+        }
+    }
+}
+
 // Run this once to be able to run the application with BUCK
 // puts all compile dependencies into folder libs for BUCK to use
 task copyDownloadableDepsToLibs(type: Copy) {
@@ -227,3 +316,11 @@ task copyDownloadableDepsToLibs(type: Copy) {
 }
 
 apply from: file("../../node_modules/@react-native-community/cli-platform-android/native_modules.gradle"); applyNativeModulesAppBuildGradle(project)
+
+def isNewArchitectureEnabled() {
+    // To opt-in for the New Architecture, you can either:
+    // - Set `newArchEnabled` to true inside the `gradle.properties` file
+    // - Invoke gradle with `-newArchEnabled=true`
+    // - Set an environment variable `ORG_GRADLE_PROJECT_newArchEnabled=true`
+    return project.hasProperty("newArchEnabled") && project.newArchEnabled == "true"
+}

example/android/app/src/debug/AndroidManifest.xml

@@ -8,6 +8,6 @@
         android:usesCleartextTraffic="true"
         tools:targetApi="28"
         tools:ignore="GoogleAppIndexingWarning">
-        <activity android:name="com.facebook.react.devsupport.DevSettingsActivity" />
+        <activity android:name="com.facebook.react.devsupport.DevSettingsActivity" android:exported="false" />
     </application>
 </manifest>

example/android/app/src/debug/java/com/example/mattermostreactnativeemm/ReactNativeFlipper.java

@@ -1,5 +1,5 @@
 /**
- * Copyright (c) Facebook, Inc. and its affiliates.
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
  *
  * <p>This source code is licensed under the MIT license found in the LICENSE file in the root
  * directory of this source tree.
@@ -19,6 +19,7 @@
 import com.facebook.flipper.plugins.network.NetworkFlipperPlugin;
 import com.facebook.flipper.plugins.react.ReactFlipperPlugin;
 import com.facebook.flipper.plugins.sharedpreferences.SharedPreferencesFlipperPlugin;
+import com.facebook.react.ReactInstanceEventListener;
 import com.facebook.react.ReactInstanceManager;
 import com.facebook.react.bridge.ReactContext;
 import com.facebook.react.modules.network.NetworkingModule;
@@ -48,7 +49,7 @@ public void apply(OkHttpClient.Builder builder) {
       ReactContext reactContext = reactInstanceManager.getCurrentReactContext();
       if (reactContext == null) {
         reactInstanceManager.addReactInstanceEventListener(
-            new ReactInstanceManager.ReactInstanceEventListener() {
+            new ReactInstanceEventListener() {
               @Override
               public void onReactContextInitialized(ReactContext reactContext) {
                 reactInstanceManager.removeReactInstanceEventListener(this);

example/android/app/src/main/AndroidManifest.xml

@@ -15,9 +15,10 @@
       <activity
         android:name=".MainActivity"
         android:label="@string/app_name"
-        android:configChanges="keyboard|keyboardHidden|orientation|screenSize|uiMode"
+        android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|screenSize|smallestScreenSize|uiMode"
         android:launchMode="singleTask"
-        android:windowSoftInputMode="adjustResize">
+        android:windowSoftInputMode="adjustResize"
+        android:exported="true">
         <intent-filter>
             <action android:name="android.intent.action.MAIN" />
             <category android:name="android.intent.category.LAUNCHER" />

example/android/app/src/main/java/com/example/mattermostreactnativeemm/MainActivity.java

@@ -1,6 +1,8 @@
 package com.example.mattermostreactnativeemm;
 
 import com.facebook.react.ReactActivity;
+import com.facebook.react.ReactActivityDelegate;
+import com.facebook.react.ReactRootView;
 
 public class MainActivity extends ReactActivity {
 
@@ -12,4 +14,32 @@ public class MainActivity extends ReactActivity {
   protected String getMainComponentName() {
     return "ReactNativeEmmExample";
   }
+
+  /**
+   * Returns the instance of the {@link ReactActivityDelegate}. There the RootView is created and
+   * you can specify the renderer you wish to use - the new renderer (Fabric) or the old renderer
+   * (Paper).
+   */
+  @Override
+  protected ReactActivityDelegate createReactActivityDelegate() {
+    return new MainActivityDelegate(this, getMainComponentName());
+  }
+  public static class MainActivityDelegate extends ReactActivityDelegate {
+    public MainActivityDelegate(ReactActivity activity, String mainComponentName) {
+      super(activity, mainComponentName);
+    }
+    @Override
+    protected ReactRootView createRootView() {
+      ReactRootView reactRootView = new ReactRootView(getContext());
+      // If you opted-in for the New Architecture, we enable the Fabric Renderer.
+      reactRootView.setIsFabric(BuildConfig.IS_NEW_ARCHITECTURE_ENABLED);
+      return reactRootView;
+    }
+    @Override
+    protected boolean isConcurrentRootEnabled() {
+      // If you opted-in for the New Architecture, we enable Concurrent Root (i.e. React 18).
+      // More on this on https://reactjs.org/blog/2022/03/29/react-v18.html
+      return BuildConfig.IS_NEW_ARCHITECTURE_ENABLED;
+    }
+  }
 }

example/android/app/src/main/java/com/example/mattermostreactnativeemm/MainApplication.java

@@ -6,8 +6,10 @@
 import com.facebook.react.ReactApplication;
 import com.facebook.react.ReactNativeHost;
 import com.facebook.react.ReactPackage;
+import com.facebook.react.config.ReactFeatureFlags;
 import com.facebook.react.ReactInstanceManager;
 import com.facebook.soloader.SoLoader;
+import com.example.newarchitecture.MainApplicationReactNativeHost;
 import java.lang.reflect.InvocationTargetException;
 import java.util.List;
 
@@ -39,14 +41,23 @@ protected String getJSMainModuleName() {
         }
       };
 
+  private final ReactNativeHost mNewArchitectureNativeHost =
+      new MainApplicationReactNativeHost(this);
+
   @Override
   public ReactNativeHost getReactNativeHost() {
-    return mReactNativeHost;
+    if (BuildConfig.IS_NEW_ARCHITECTURE_ENABLED) {
+      return mNewArchitectureNativeHost;
+    } else {
+      return mReactNativeHost;
+    }
   }
 
   @Override
   public void onCreate() {
     super.onCreate();
+    // If you opted-in for the New Architecture, we enable the TurboModule system
+    ReactFeatureFlags.useTurboModules = BuildConfig.IS_NEW_ARCHITECTURE_ENABLED;
     SoLoader.init(this, /* native exopackage */ false);
     initializeFlipper(this, getReactNativeHost().getReactInstanceManager()); // Remove this line if you don't want Flipper enabled
   }