Java tutorial
/* * Copyright (C) 2016 david.wei (lighters) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.lighters.demos.reactnative; import android.app.Activity; import android.os.Bundle; import android.view.KeyEvent; import com.facebook.react.ReactInstanceManager; import com.facebook.react.ReactRootView; import com.facebook.react.common.LifecycleState; import com.facebook.react.modules.core.DefaultHardwareBackBtnHandler; import com.facebook.react.shell.MainReactPackage; import com.lighters.demos.BuildConfig; /** * Created by david on 16/10/12. * Email: huangdiv5@gmail.com * GitHub: https://github.com/alighters */ public class ToastRnActivity extends Activity implements DefaultHardwareBackBtnHandler { private ReactRootView mReactRootView; private ReactInstanceManager mReactInstanceManager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mReactRootView = new ReactRootView(this); mReactInstanceManager = ReactInstanceManager.builder().setApplication(getApplication()) .setBundleAssetName("index.android.bundle").setJSMainModuleName("index.android") .addPackage(new MainReactPackage()).addPackage(new ToastExampleReactPackage()) .setUseDeveloperSupport(BuildConfig.DEBUG) //.setUseDeveloperSupport(false) .setInitialLifecycleState(LifecycleState.RESUMED) //.setUseOldBridge(true) // uncomment this line if your app crashes .build(); mReactRootView.startReactApplication(mReactInstanceManager, "HelloWorld", null); setContentView(mReactRootView); } @Override public void invokeDefaultOnBackPressed() { super.onBackPressed(); } @Override protected void onPause() { super.onPause(); if (mReactInstanceManager != null) { mReactInstanceManager.onHostPause(this); } } @Override protected void onResume() { super.onResume(); if (mReactInstanceManager != null) { mReactInstanceManager.onHostResume(this, this); } } @Override protected void onDestroy() { super.onDestroy(); if (mReactInstanceManager != null) { mReactInstanceManager.onHostDestroy(this); } } @Override public void onBackPressed() { if (mReactInstanceManager != null) { mReactInstanceManager.onBackPressed(); } else { super.onBackPressed(); } } @Override public boolean onKeyUp(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_MENU && mReactInstanceManager != null) { mReactInstanceManager.showDevOptionsDialog(); return true; } return super.onKeyUp(keyCode, event); } }