【002】renPy android端启动流程分析
接上篇分析
org.renpy.android.PythonSDLActivity#onCreate
它先调用了
org.libsdl.app.SDLActivity#onCreate
源码如下：
@Override // android.app.Activity
protected void onCreate(Bundle bundle0) {//1. 日志记录String s;Log.v("SDL", "Device: " + Build.DEVICE);Log.v("SDL", "Model: " + Build.MODEL);Log.v("SDL", "onCreate()");super.onCreate(bundle0);try {// 2. 设置线程名称Thread.currentThread().setName("SDLActivity");}catch(Exception exception0) {Log.v("SDL", "modify thread properties failed " + exception0.toString());}
//3. 加载本地库try {this.loadLibraries();SDLActivity.mBrokenLibraries = false;s = "";}catch(UnsatisfiedLinkError unsatisfiedLinkError0) {System.err.println(unsatisfiedLinkError0.getMessage());SDLActivity.mBrokenLibraries = true;s = unsatisfiedLinkError0.getMessage();}catch(Exception exception1) {System.err.println(exception1.getMessage());SDLActivity.mBrokenLibraries = true;s = exception1.getMessage();}if(SDLActivity.mBrokenLibraries) {SDLActivity.mSingleton = this;AlertDialog.Builder alertDialog$Builder0 = new AlertDialog.Builder(this);alertDialog$Builder0.setMessage("An error occurred while trying to start the application. Please try again and/or reinstall.\n\nError: " + s);alertDialog$Builder0.setTitle("SDL Error");alertDialog$Builder0.setPositiveButton("Exit", new DialogInterface.OnClickListener() {@Override // android.content.DialogInterface$OnClickListenerpublic void onClick(DialogInterface dialogInterface0, int v) {SDLActivity.mSingleton.finish();}});alertDialog$Builder0.setCancelable(false);alertDialog$Builder0.create().show();return;}//5. 初始化 SDL JNI 接口SDL.setupJNI();// 6. 全局状态初始化SDL.initialize();SDLActivity.mSingleton = this;SDL.setContext(this);SDLActivity.mClipboardHandler = new SDLClipboardHandler();SDLActivity.mSurface = new SDLSurface(this.getApplication());RelativeLayout relativeLayout0 = new RelativeLayout(this);SDLActivity.mLayout = relativeLayout0;relativeLayout0.addView(SDLActivity.mSurface);int v = SDLActivity.getCurrentOrientation();SDLActivity.mCurrentOrientation = v;SDLActivity.onNativeOrientationChanged(v);try {SDLActivity.mCurrentLocale = Build.VERSION.SDK_INT < 24 ? SDLActivity.getContext().getResources().getConfiguration().locale : SDLActivity.getContext().getResources().getConfiguration().getLocales().get(0);}catch(Exception unused_ex) {}//7. 设置内容视图this.setContentView(SDLActivity.mLayout);//8. 窗口样式与 UI 设置SDLActivity.setWindowStyle(false);this.getWindow().getDecorView().setOnSystemUiVisibilityChangeListener(this);//9. 处理 Intent 数据（如文件路径）Intent intent0 = this.getIntent();if(intent0 != null && intent0.getData() != null) {String s1 = intent0.getData().getPath();if(s1 != null) {Log.v("SDL", "Got filename: " + s1);SDLActivity.onNativeDropFile(s1);}}
}
功能
描述
日志输出
输出设备信息和生命周期状态，便于调试
本地库加载
加载 SDL 核心库和游戏逻辑库
异常处理
处理加载失败的情况并提示用户
JNI 初始化
设置 Java 与 C/C++ 交互的基础环境
UI 初始化
创建 SDLSurface 并设置为内容视图
全局状态管理
初始化 SDL 相关的全局状态和事件处理器
Intent 支持
支持通过 Intent 传入外部数据（如文件路径）
实际加载的是
@Override // org.libsdl.app.SDLActivity
protected String[] getLibraries() {return new String[]{"renpython"};
}
里面有一堆native的方法