Android 集成 React Native 和 Ionic
原标题:Android (Kotlin) 集成 React Native 和 Ionic:Kotlin + React Native + Dore + Ionic 3.x
为了总结去年的移动开发经验,我使用 Kotlin + React Native + Dore + Ionic 3.x 做了一个简单的模板项目:Arche。
项目地址:https://github.com/phodal/arche
Arche 是一个 Android 移动应用模板——使用原生(Kotlin) Android 集成 React Native,以及 Ionic Web 框架、基于 React Native 的混合应用框架 Dore。
其技术栈是:
原生 Android(Kotlin)
React Native
Ionic + Angular
Dore Framework
创建原生 Android 项目
首先使用 Android Studio 创建一个带导航栏的项目
生成的 MainActivity 如下:
class MainActivity : AppCompatActivity() { private val mOnNavigationItemSelectedListener = BottomNavigationView.OnNavigationItemSelectedListener { item -> when (item.itemId) { R.id.navigation_home -> { message.setText(R.string.title_home) return@OnNavigationItemSelectedListener true } R.id.navigation_dashboard -> { message.setText(R.string.title_dashboard) return@OnNavigationItemSelectedListener true } R.id.navigation_notifications -> { message.setText(R.string.title_notifications) return@OnNavigationItemSelectedListener true } } false } override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener) } }
在这里,我使用的是 Fragment 来切换页面,逻辑如下:
private fun switchFragment(lastIndex: Int, index: Int) { val transaction = supportFragmentManager.beginTransaction() transaction.hide(fragments!![lastIndex]) if (!fragments!![index].isAdded) { transaction.add(R.id.container, fragments!![index]) } transaction.show(fragments!![index]).commitAllowingStateLoss() }private fun initFragments() { homeFragment = HomeFragment() archeReactFragment = ArcheReactFragment() archeWebViewFragment = ArcheWebViewFragment() fragments = arrayOf(homeFragment!!, archeReactFragment!!, archeWebViewFragment!!) lastShowFragment = 0 supportFragmentManager .beginTransaction() .add(R.id.container, homeFragment) .show(homeFragment) .commit() }
对应的,mOnNavigationItemSelectedListener
就变成了:
private val mOnNavigationItemSelectedListener = OnNavigationItemSelectedListener { item -> when (item.itemId) { R.id.navigation_home -> { if (lastShowFragment != 0) { switchFragment(lastShowFragment, 0) lastShowFragment = 0 } return@OnNavigationItemSelectedListener true } R.id.navigation_notifications -> { if (lastShowFragment != 1) { switchFragment(lastShowFragment, 1) lastShowFragment = 1; } return@OnNavigationItemSelectedListener true } R.id.navigation_webview -> { if (lastShowFragment != 2) { switchFragment(lastShowFragment, 2) lastShowFragment = 2 } return@OnNavigationItemSelectedListener true } } false}
其布局是:
<?xml version="1.0" encoding="utf-8"?><android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="arche.phodal.com.arche.MainActivity"> <FrameLayout android:adjustViewBounds="true" android:id="@+id/container" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> </FrameLayout> <android.support.design.widget.BottomNavigationView android:id="@+id/navigation" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_marginEnd="0dp" android:layout_marginStart="0dp" android:background="?android:attr/windowBackground" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintLeft_toLeftOf="parent" app:layout_constraintRight_toRightOf="parent" app:menu="@menu/navigation" /></android.support.constraint.ConstraintLayout>
React Native 部份
创建 React Native 应用
npm install -g create-react-native-app create-react-native-app RNArche cd RNArchenpm start
生成项目
Inject
npm run inject
添加权限
添加 Overlay 的权限处理:
override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener) if (BuildConfig.DEBUG && Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { if (!Settings.canDrawOverlays(this)) { val intent = Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + packageName)) startActivityForResult(intent, OVERLAY_PERMISSION_REQ_CODE) } } }@SuppressLint("ShowToast")override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) { super.onActivityResult(requestCode, resultCode, data) if (requestCode == OVERLAY_PERMISSION_REQ_CODE) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { if (!Settings.canDrawOverlays(this)) { Toast.makeText(this, "Lost Permissions", Toast.LENGTH_SHORT) } } } }
以及 AndroidManifest.xml 中的:
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
创建 ReactApplication
我的是 ArcheApplication
class ArcheApplication : Application(), ReactApplication { private val mReactNativeHost = object : ReactNativeHost(this) { override fun getUseDeveloperSupport(): Boolean { return true } public override fun getPackages(): List<ReactPackage> { return Arrays.asList<ReactPackage>( MainReactPackage() ) } } override fun getReactNativeHost(): ReactNativeHost { return mReactNativeHost } }
创建基础的 Fragment
abstract class ReactFragment : Fragment() { private var mReactRootView: ReactRootView? = null private var mReactInstanceManager: ReactInstanceManager? = null abstract val mainComponentName: String override fun onAttach(context: Context?) { super.onAttach(context) mReactRootView = ReactRootView(context) mReactInstanceManager = (activity.application as ArcheApplication) .reactNativeHost .reactInstanceManager } override fun onCreateView(inflater: LayoutInflater?, group: ViewGroup?, savedInstanceState: Bundle?): ReactRootView? { super.onCreate(savedInstanceState) return mReactRootView } override fun onActivityCreated(savedInstanceState: Bundle?) { super.onActivityCreated(savedInstanceState) mReactRootView!!.startReactApplication( mReactInstanceManager, mainComponentName, null ) } }
更新 MainActivity
然后在我们的 MainActivity 中实现对应的逻辑:
class MainActivity : AppCompatActivity(), DefaultHardwareBackBtnHandler { ... private var mReactInstanceManager: ReactInstanceManager? = null override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener) mReactInstanceManager = (application as ArcheApplication).reactNativeHost.reactInstanceManager initFragments() if (BuildConfig.DEBUG && Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { if (!Settings.canDrawOverlays(this)) { val intent = Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + packageName)) startActivityForResult(intent, OVERLAY_PERMISSION_REQ_CODE) } } } override fun onPause() { super.onPause() if (mReactInstanceManager != null) { mReactInstanceManager!!.onHostPause(this) } } override fun onResume() { super.onResume() if (mReactInstanceManager != null) { mReactInstanceManager!!.onHostResume(this, this) } } override fun invokeDefaultOnBackPressed() { super.onBackPressed() } }
创建我们的 Fragment
class ArcheReactFragment : ReactFragment() { override val mainComponentName: String get() = "RNArche" private var mReactRootView: ReactRootView? = null private var mReactInstanceManager: ReactInstanceManager? = null @Nullable override fun onCreateView(inflater: LayoutInflater?, group: ViewGroup?, savedInstanceState: Bundle?): ReactRootView? { mReactRootView = ReactRootView(activity) mReactInstanceManager = ReactInstanceManager.builder() .setApplication(activity.application) .setBundleAssetName("index.android.bundle") .setJSMainModulePath("index") .addPackage(MainReactPackage()) .setUseDeveloperSupport(BuildConfig.DEBUG) .setInitialLifecycleState(LifecycleState.RESUMED) .build() mReactRootView!!.startReactApplication(mReactInstanceManager, "RNArche", null) return mReactRootView } }
这里的 "RNArche"
需要和 React Native 中注册的 Component 保持一致:
AppRegistry.registerComponent('RNArche', () => App);
在这里,也可以注册多个 Component
AppRegistry.registerComponent('RNArche', () => App); AppRegistry.registerComponent('RNArche2', () => App2);
当然,也可以创建一个自己的 Activity 来做对应的事情。
WebView
好了,现在,让我们来创建我们的 WebView 应用:
npm install -g cordova ionic ionic start archeWebview sidemenu
然后下面的命令,来生成最后的 www 文件:
ionic build --prod
将其复制到 assets
目录下。
对应的 Android 代码如下:
@SuppressLint("SetJavaScriptEnabled")@Nullableoverride fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?, savedInstanceState: Bundle?): View? { val view = inflater?.inflate(R.layout.fragment_webview, container, false) avi = view?.findViewById(R.id.avi) mWebView = view?.findViewById(R.id.webview) mWebView!!.loadUrl("file:///android_asset/www/index.html") val webSettings = mWebView!!.settings webSettings.javaScriptEnabled = true mWebView!!.webViewClient = WebViewClient() return view }
然后,我也顺手添加了一个 Loading 效果:
private fun setLoadingProgress() { mWebView!!.webViewClient = object : WebViewClient() { override fun onPageStarted(view: WebView?, url: String?, favicon: Bitmap?) { avi!!.show() super.onPageStarted(view, url, favicon) } override fun onPageFinished(view: WebView?, url: String?) { avi!!.hide() super.onPageFinished(view, url) } } }
对应的 XML 如下:
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <LinearLayout android:id="@+id/information_detail" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_gravity="center_horizontal" android:orientation="vertical"> <com.wang.avi.AVLoadingIndicatorView android:id="@+id/avi" style="@style/AVLoadingIndicatorView" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_gravity="center_horizontal" android:visibility="visible" app:indicatorColor="#000" app:indicatorName="BallClipRotateMultipleIndicator" /> <WebView android:id="@+id/webview" android:layout_width="match_parent" android:layout_height="match_parent" android:scrollbars="none" /> </LinearLayout></LinearLayout>
Q & A
问题libgnustl_shared.so" is 32-bit instead of 64-bit
在 build.gradle 中添加 ndk 配置:
android { compileSdkVersion 26 defaultConfig { applicationId "arche.phodal.com.arche" minSdkVersion 16 targetSdkVersion 26 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" vectorDrawables.useSupportLibrary= true ndk { abiFilters "armeabi-v7a", "x86" } } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } }
Bundle files
cp ./RNArche/android/app/build/intermediates/assets/release/index.android.bundle ./app/src/main/assets/index.android.bundle
问题:
java.lang.ClassCastException: android.app.Application cannot be cast to arche.phodal.com.arche.ArcheApplication
在 AndroidManifest.xml 添加对应的 application
<application android:name=".ArcheApplication" android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme">
共同学习,写下你的评论
评论加载中...
作者其他优质文章