Android: 發送虛擬按鍵

Android: 發送虛擬按鍵

1. /**
2. * Send a single key event.
3. *
4. * @param event is a string representing the keycode of the key event you
5. * want to execute.
6. */
7. private void sendKeyEvent(int keyCode) {
8. int eventCode = keyCode;
9. long now = SystemClock.uptimeMillis();
10. try {
11. KeyEvent down = new KeyEvent(now, now, KeyEvent.ACTION_DOWN, eventCode, 0);
12. KeyEvent up = new KeyEvent(now, now, KeyEvent.ACTION_UP, eventCode, 0);
13. (IWindowManager.Stub
14. .asInterface(ServiceManager.getService("window")))
15. .injectInputEventNoWait(down);
16. (IWindowManager.Stub
17. .asInterface(ServiceManager.getService("window")))
18. .injectInputEventNoWait(up);
19. } catch (RemoteException e) {
20. Log.i(TAG, "DeadOjbectException");
21. }
22. }

sendKeyEvent(KeyEvent.KEYCODE_BACK);