android程序监听home键与电源键

private final BroadcastReceiver homePressReceiver = new BroadcastReceiver() {
	final String SYSTEM_DIALOG_REASON_KEY = "reason";
	final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";
	@Override
	public void onReceive(Context context, Intent intent) {
		String action = intent.getAction();
		if (action.equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)) {
			String reason = intent.getStringExtra(SYSTEM_DIALOG_REASON_KEY);
			if (reason != null && reason.equals(SYSTEM_DIALOG_REASON_HOME_KEY)) {
			//自己随意控制程序，关闭...
			}
		}
	}
};

final IntentFilter homeFilter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
registerReceiver(homePressReceiver, homeFilter);

if(homePressReceiver != null){
	try {
		unregisterReceiver(homePressReceiver);
	} catch (Exception e) {
		Log.e(TAG, "unregisterReceiver homePressReceiver failure :"+e.getCause());
	}
}

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

Intent.ACTION_SCREEN_OFF
Intent.ACTION_SCREEN_ON
private final BroadcastReceiver mBatInfoReceiver = new BroadcastReceiver() {
	@Override
	public void onReceive(final Context context, final Intent intent) {
		final String action = intent.getAction();
		if (Intent.ACTION_SCREEN_OFF.equals(action)) {
			//退出程序...
		}
	}
};
onCreate()方法中注册
IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_OFF);
registerReceiver(mBatInfoReceiver, filter);
onDestory()方法中解除注册
if(mBatInfoReceiver != null){
	try {
		unregisterReceiver(mBatInfoReceiver);
	} catch (Exception e) {
		Log.e(TAG, "unregisterReceiver mBatInfoReceiver failure :"+e.getCause());
	}
}