exampleApp/android/app/src/main/java/com/exampleapp/MainApplication.java
package com.exampleapp;
import android.app.Application;
import android.content.Context;
import com.facebook.react.PackageList;
import com.facebook.react.ReactApplication;
import com.facebook.react.ReactInstanceManager;
import com.facebook.react.ReactNativeHost;
import com.facebook.react.ReactPackage;
import com.facebook.react.config.ReactFeatureFlags;
import com.facebook.soloader.SoLoader;
import com.exampleapp.newarchitecture.MainApplicationReactNativeHost;
import java.lang.reflect.InvocationTargetException;
import java.util.List;
public class MainApplication extends Application implements ReactApplication {
private final ReactNativeHost mReactNativeHost =
new ReactNativeHost(this) {
@Override
public boolean getUseDeveloperSupport() {
return BuildConfig.DEBUG;
}
@Override
protected List<ReactPackage> getPackages() {
@SuppressWarnings("UnnecessaryLocalVariable")
List<ReactPackage> packages = new PackageList(this).getPackages();
// Packages that cannot be autolinked yet can be added manually here, for example:
// packages.add(new MyReactNativePackage());
return packages;
}
@Override
protected String getJSMainModuleName() {
return "index";
}
};
private final ReactNativeHost mNewArchitectureNativeHost =
new MainApplicationReactNativeHost(this);
@Override
public ReactNativeHost getReactNativeHost() {
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());
}
/**
* Loads Flipper in React Native templates. Call this in the onCreate method with something like
* initializeFlipper(this, getReactNativeHost().getReactInstanceManager());
*
* @param context
* @param reactInstanceManager
*/
private static void initializeFlipper(
Context context, ReactInstanceManager reactInstanceManager) {
if (BuildConfig.DEBUG) {
try {
/*
We use reflection here to pick up the class that initializes Flipper,
since Flipper library is not available in release mode
*/
Class<?> aClass = Class.forName("com.exampleapp.ReactNativeFlipper");
aClass
.getMethod("initializeFlipper", Context.class, ReactInstanceManager.class)
.invoke(null, context, reactInstanceManager);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}
}
}