Hippy项目源码分析Week11
2021SC@SDUSCHippy项目源码分析第十一周examples/android-demo/javaMyActivity.javalayout文件下的源码基本分析完毕,开始分析examples目录下的android-demo文件夹examples/android-demo/java该文件夹下是Hippy项目在安卓的一些演示实例,供开发者参考MyActivity.javapublic clas
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2021SC@SDUSC
Hippy项目源码分析第十一周
layout文件下的源码基本分析完毕,开始分析examples目录下的android-demo文件夹
examples/android-demo/java
该文件夹下是Hippy项目在安卓的一些演示实例,供开发者参考
MyActivity.java
public class MyActivity extends Activity
{
private HippyEngine mHippyEngine;
private HippyRootView mHippyView;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
getWindow().requestFeature(Window.FEATURE_NO_TITLE);
HippyEngine.setNativeLogHandler(
msg -> Log.e("HippyCore", "onReceiveNativeLogMessage: " + msg));
// 1/3. 初始化hippy引擎
{
HippyEngine.EngineInitParams initParams = new HippyEngine.EngineInitParams();
// 必须:宿主(Hippy的使用者)的Context
// 若存在多个Activity加载多个业务jsbundle的情况,
// 则这里初始化引擎时建议使用Application的Context
initParams.context = this;
// 必须:图片加载器
initParams.imageLoader = new MyImageLoader(this.getApplicationContext());
initParams.debugServerHost = "localhost:38989";
// 可选:是否设置为debug模式,默认为false。
// 调试模式下,所有jsbundle都是从debug server上下载
initParams.debugMode = false;
// 可选:是否打印引擎的完整的log。默认为false
initParams.enableLog = true;
// 可选:debugMode = false 时必须设置coreJSAssetsPath或coreJSFilePath
// (debugMode = true时,所有jsbundle都是从debug server上下载)
initParams.coreJSAssetsPath = "vendor.android.js";
initParams.codeCacheTag = "common";
// 可选:异常处理器
initParams.exceptionHandler = new HippyExceptionHandlerAdapter() {
// JavaScript执行异常
@Override
public void handleJsException(HippyJsException exception) {
LogUtils.e("hippy", exception.getMessage() + exception.getStack());
}
// Native代码执行异常:包括sdk和业务定制代码
@Override
public void handleNativeException(Exception exception, boolean haveCaught) {
LogUtils.e("hippy", exception.getMessage());
}
// JavaScript代码Trace,业务层一般不需要
@Override
public void handleBackgroundTracing(String details) {
LogUtils.e("hippy", details);
}
};
List<HippyAPIProvider> providers = new ArrayList<>();
providers.add(new MyAPIProvider());
// 可选:自定义的,用来提供Native modules、
// JavaScript modules、View controllers的管理器。1个或多个
initParams.providers = providers;
// 根据EngineInitParams创建引擎实例
mHippyEngine = HippyEngine.create(initParams);
// 异步初始化Hippy引擎
mHippyEngine.initEngine(new HippyEngine.EngineListener() {
// Hippy引擎初始化完成
/**
* @param statusCode
* status code from initializing procedure
* @param msg
* Message from initializing procedure
*/
@Override
public void onInitialized(EngineInitStatus statusCode, String msg) {
if (statusCode != EngineInitStatus.STATUS_OK)
LogUtils.e("MyActivity", "hippy engine init failed code:" + statusCode + ", msg=" + msg);
// else
{
// 2/3. 加载hippy前端模块
HippyEngine.ModuleLoadParams loadParams = new HippyEngine.ModuleLoadParams();
// 必须:该Hippy模块将要挂在的Activity or Dialog的context
loadParams.context = MyActivity.this;
/*
必须:指定要加载的Hippy模块里的组件(component)。
componentName对应的是js文件中的"appName",比如:
var hippy = new Hippy({
appName: "Demo",
entryPage: App
});
*/
loadParams.componentName = "Demo";
loadParams.codeCacheTag = "Demo";
/*
可选:二选一设置。自己开发的业务模块的jsbundle的assets路径
(assets路径和文件路径二选一,优先使用assets路径)
debugMode = false 时必须设置jsAssetsPath或jsFilePath
(debugMode = true时,所有jsbundle都是从debug server上下载)
*/
loadParams.jsAssetsPath = "index.android.js";
/*
可选:二选一设置。自己开发的业务模块的jsbundle的文件路径
(assets路径和文件路径二选一,优先使用assets路径)
debugMode = false 时必须设置jsAssetsPath或jsFilePath
(debugMode = true时,所有jsbundle都是从debug server上下载)
*/
loadParams.jsFilePath = null;
// 可选:发送给Hippy前端模块的参数
loadParams.jsParams = new HippyMap();
loadParams.jsParams.pushString("msgFromNative", "Hi js developer, I come from native code!");
// 加载Hippy前端模块
mHippyView = mHippyEngine.loadModule(loadParams, new HippyEngine.ModuleListener() {
@Override
public void onLoadCompleted(ModuleLoadStatus statusCode, String msg, HippyRootView hippyRootView) {
if (statusCode != ModuleLoadStatus.STATUS_OK) {
LogUtils.e("MyActivity", "loadModule failed code:" + statusCode + ", msg=" + msg);
}
}
@Override
public boolean onJsException(HippyJsException exception) {
return true;
}
});
setContentView(mHippyView);
}
}
});
}
}
@Override
protected void onResume() {
super.onResume();
mHippyEngine.onEngineResume();
}
@Override
protected void onStop() {
super.onStop();
mHippyEngine.onEnginePause();
}
@Override
protected void onDestroy() {
// 3/3. 摧毁hippy前端模块,摧毁hippy引擎
mHippyEngine.destroyModule(mHippyView);
mHippyEngine.destroyEngine();
super.onDestroy();
}
@Override
public void onBackPressed() {
// 可选:让hippy前端能够监听并拦截back事件
boolean handled = mHippyEngine.onBackPressed(new HippyEngine.BackPressHandler() {
@Override
public void handleBackPress() {
MyActivity.this.doActivityBack();
}
});
if (!handled) {
super.onBackPressed();
}
}
// 可选:让hippy前端能够监听并拦截back事件
public void doActivityBack() {
super.onBackPressed();
}
}
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