android中模拟按键的另外一种方法

在com.android.commands.input中发现这一方法

 

private void sendKeyEvent(String event) { int eventCode = Integer.parseInt(event); long now = SystemClock.uptimeMillis(); Log.i("SendKeyEvent", event); try { KeyEvent down = new KeyEvent(now, now, KeyEvent.ACTION_DOWN, eventCode, 0); KeyEvent up = new KeyEvent(now, now, KeyEvent.ACTION_UP, eventCode, 0); (IWindowManager.Stub .asInterface(ServiceManager.getService("window"))) .injectKeyEvent(down, true); (IWindowManager.Stub .asInterface(ServiceManager.getService("window"))) .injectKeyEvent(up, true); } catch (RemoteException e) { Log.i("Input", "DeadOjbectException"); } } 

 

injectKeyEvent是WindowManagerService的public 方法，虽然WindowManagerService被隐藏掉，但是我们可以通过反射来调用injectKeyEvent。