原文：http://www.pocketmagic.net/2012/04/injecting-events-programatically-on-android/#.VEoIoIuUcaV
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往下分析monkey事件注入源码之前先了解下在android系统下事件注入的方式，翻译一篇国外文章如下。
Method 1: Using internal APIs
方法1:使用内部APIs
This approach has its risks, like it is always with internal, unpublished APIs.
该方法和其他所有内部没有向外正式公布的APIs一样存在它自己的风险。
The idea is to get an instance of WindowManager in order to access the injectKeyEvent / injectPointerEvent methods.
原理是通过获得WindowManager的一个实例来访问injectKeyEvent/injectPointerEvent这两个事件注入方法。
IBinder wmbinder = ServiceManager.getService( "window" ); IWindowManager m_WndManager = IWindowManager.Stub.asInterface( wmbinder );
The ServiceManager and WindowsManager are defined as Stubs. We can then bind to these services and call the methods we need.
ServiceManager和Windowsmanager被定义为存根Stubs类。我们根据我们的需要绑定上这些服务并访问里面的方法。
To send a key do the following:
通过以下方式发送一个事件：
// key down m_WndManager.injectKeyEvent( new KeyEvent( KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_A ),true ); // key up m_WndManager.injectKeyEvent( new KeyEvent( KeyEvent.ACTION_UP, KeyEvent.KEYCODE_A ),true );
To send touch/mouse events use:
发送touch/mouse事件：
//pozx goes from 0 to SCREEN WIDTH , pozy goes from 0 to SCREEN HEIGHT m_WndManager.injectPointerEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(),MotionEvent.ACTION_DOWN,pozx, pozy, 0), true); m_WndManager.injectPointerEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(),MotionEvent.ACTION_UP,pozx, pozy, 0), true);
This works fine, but only inside your application
这种方法能在你的应用中很好的工作，但，也仅仅只能在你的应用中而已
adb shell su chmod 666 /dev/input/event3
You will need root to run the chmod command.
你将需要root权限来运行chmod命令。
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