package com.demo; import android.app.Application; import android.util.Log; import com.facebook.react.ReactApplication; import com.facebook.react.ReactInstanceManager; import com.facebook.react.ReactNativeHost; import com.facebook.react.ReactPackage; import com.facebook.react.shell.MainReactPackage; import java.util.Arrays; import java.util.List; public class MainApplication extends Application implements ReactApplication { private final ReactNativeHost mReactNativeHost = new ReactNativeHost(this) { @Override protected boolean getUseDeveloperSupport() { return BuildConfig.DEBUG; } @Override protected List getPackages() { return Arrays.asList( new MainReactPackage() ); } }; @Override public ReactNativeHost getReactNativeHost() { return mReactNativeHost; } }