android实现短按电源键关机的实现代码

打开文件:\frameworks\base\policy\src\com\android\internal\policy\impl\PhoneWindowManager.java
在代码: private static final int MSG_POWER_LONG_PRESS = 14;下面添加:

private static final int MSG_POWER_SHUT_DOWN=15;

在:

case MSG_POWER_LONG_PRESS:
  powerLongPress();
  break;

下面添加:

case MSG_POWER_SHUT_DOWN:
		mWindowManagerFuncs.shutdown(false);
		break;

找到 case KeyEvent.KEYCODE_POWER:
注释掉

/*result &= ~ACTION_PASS_TO_USER;
 isWakeKey = false; // wake-up will be handled separately
 if (down) {
  interceptPowerKeyDown(event, interactive);
 } else {
  interceptPowerKeyUp(event, interactive, canceled);
 }
 break;*/

再添加:

if(down){
					if(mPowerManager.isScreenOn()) {
						Message msg = mHandler.obtainMessage(MSG_POWER_SHUT_DOWN);
						msg.setAsynchronous(true);
						mHandler.sendMessageDelayed(msg,
						ViewConfiguration.get(mContext).getDeviceGlobalActionKeyTimeout());
					} else {
						Log.e("GO to Wakeup--------> TTTEEE","keyCode :"+keyCode);
						wakeUpFromPowerKey(event.getDownTime());
					}
				}   
				break;

之后在目录frameworks/base/policy中mm编译出android.policy.jar push到system/framework重启即可

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