android程序监听home键与电源键

01	private final BroadcastReceiver homePressReceiver = new BroadcastReceiver() {

02	final String SYSTEM_DIALOG_REASON_KEY = "reason";

03	final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";

04

@Override

05	public void onReceive(Context context, Intent intent) {

06	String action = intent.getAction();

07	if (action.equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)) {

08	String reason = intent.getStringExtra(SYSTEM_DIALOG_REASON_KEY);

09	if (reason != null && reason.equals(SYSTEM_DIALOG_REASON_HOME_KEY)) {

10	//自己随意控制程序，关闭...

11

}

12

}

13

}

14

};

然后在onreate()方法中，注册

1	final IntentFilter homeFilter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);

2	registerReceiver(homePressReceiver, homeFilter);

当然最后为了程序的严谨性也是为了防止出错，我们在onDestory()方法中，也要解除注册

1	if(homePressReceiver != null){

2

try {

3	unregisterReceiver(homePressReceiver);

4	} catch (Exception e) {

5	Log.e(TAG, "unregisterReceiver homePressReceiver failure :"+e.getCause());

6

}

7

}

2，电源监听，先要有权限

1	<uses-permission android:name="android.permission.WAKE_LOCK" />

然后监听两个action

01	Intent.ACTION_SCREEN_OFF

02	Intent.ACTION_SCREEN_ON

03	private final BroadcastReceiver mBatInfoReceiver = new BroadcastReceiver() {

04

@Override

05	public void onReceive(final Context context, final Intent intent) {

06	final String action = intent.getAction();

07	if (Intent.ACTION_SCREEN_OFF.equals(action)) {

08

//退出程序...

09

}

10

}

11

};

12	onCreate()方法中注册

13	IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_OFF);

14	registerReceiver(mBatInfoReceiver, filter);

15	onDestory()方法中解除注册

16	if(mBatInfoReceiver != null){

17

try {

18	unregisterReceiver(mBatInfoReceiver);

19	} catch (Exception e) {

20	Log.e(TAG, "unregisterReceiver mBatInfoReceiver failure :"+e.getCause());

21

}

22

}