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...
}
}
}
};

然后在onreate()方法中，注册

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

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

2，电源监听，先要有权限

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

然后监听两个action

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());
}
}