Android发送虚拟按键(转)

1. private void sendKeyEvent(int keyCode) { 
2.     int eventCode = keyCode; 
3.     long now = SystemClock.uptimeMillis(); 
4.     try { 
5.         KeyEvent down = new KeyEvent(now, now, KeyEvent.ACTION_DOWN, eventCode, 0); 
6.         KeyEvent up = new KeyEvent(now, now, KeyEvent.ACTION_UP, eventCode, 0); 
7.         (IWindowManager.Stub 
8.             .asInterface(ServiceManager.getService("window"))) 
9.             .injectInputEventNoWait(down); 
10.         (IWindowManager.Stub 
11.             .asInterface(ServiceManager.getService("window"))) 
12.             .injectInputEventNoWait(up); 
13.     } catch (RemoteException e) { 
14.         Log.i(TAG, "DeadOjbectException"); 
15.     } 
16. } 
17. 使用时这样调用:
18. sendKeyEvent(KeyEvent.KEYCODE_BACK);