当使用unregisterReceiver的onPause（）的onDestroy（）或的onStop（）？ [英] When to use unregisterReceiver onPause() , onDestroy() or onStop()?

问题描述

在使用unregisterReceiver 的onPause（），的onDestroy（）或的onStop（） ？

注：我需要的服务在后台运行

。

更新：

1.我得到一个异常释放接收器空。

2.Activity渗漏意图接收器是否缺少调用 unresgisterReceiver（）;

请告诉我，如果有什么问题

下面是我的code：

 私人布尔processedObstacleReceiverStarted;
  私人布尔mainNotificationReceiverStarted;

保护无效onResume（）{

super.onResume（）;
尝试 {
        registerReceivers（）;

}赶上（例外五）{

        Log.e（MatabbatManager.TAG，
                MAINActivity：无法注册接收器Matanbbat行动
                        + e.getMessage（））;
}



 私人无效registerReceivers（）{

    如果（！mainNotificationReceiverStarted）{
        mainNotificationReceiver =新MainNotificationReceiver（）;

        IntentFilter的notificationIntent =新的IntentFilter（）;

        notificationIntent
                .addAction（MatabbatManager.MATABAT_LOCATION_ACTION）;
        notificationIntent
                .addAction（MatabbatManager.MATABAT_New_DATA_RECEIVED）;
        notificationIntent
                .addAction（MatabbatManager.STATUS_NOTIFCATION_ACTION）;
        registerReceiver（mainNotificationReceiver，notificationIntent）;

        mainNotificationReceiverStarted = TRUE;

    }

    如果（！processedObstacleReceiverStarted）{
        processedObstacleReceiver =新ProcessedObstacleReceiver（）;
        registerReceiver（processedObstacleReceiver，新的IntentFilter（
                MatabbatManager.MATABAT_ALARM_LOCATION_ACTION））;
        processedObstacleReceiverStarted = TRUE;

    }

}

私人无效unRegisterReceivers（）{

        如果（mainNotificationReceiverStarted）{
            unregisterReceiver（mainNotificationReceiver）;
            mainNotificationReceiverStarted = FALSE;
        }
        如果（processedObstacleReceiverStarted）{
            unregisterReceiver（processedObstacleReceiver）;
            processedObstacleReceiverStarted = FALSE;
        }

    }



@覆盖
    保护无效的onDestroy（）{
        // TODO自动生成方法存根
        super.onDestroy（）;

        尝试 {

            unRegisterReceivers（）;
            mWakeLock.release（）; //保持屏幕上
        }赶上（例外五）{
            Log.e（MatabbatManager.TAG，的getClass（）+释放接收器 - + e.getMessage（））;
        }

    }
 

解决方案

这取决于您拥有注册接收器。互补的方法对是

 的onCreate  - 的onDestroy
onResume  - 的onPause
ONSTART  - 的onStop
 

如果您注册了第一个接收器，然后注销就在它的结束方式。

When to use unregisterReceiver onPause() , onDestroy() or onStop()?

Note:I need the service to run in background.

Update:

1.I get an exception releasing receivers null.

2.Activity has leaked intent receivers are you missing call to unresgisterReceiver();

pls tell me if there's something wrong

Here's my code:

  private boolean processedObstacleReceiverStarted;
  private boolean mainNotificationReceiverStarted;

protected void onResume() {

super.onResume();
try {
        registerReceivers();

} catch (Exception e) {

        Log.e(MatabbatManager.TAG,
                "MAINActivity: could not register receiver for Matanbbat Action "
                        + e.getMessage());
}



 private void registerReceivers() {

    if (!mainNotificationReceiverStarted) {
        mainNotificationReceiver = new MainNotificationReceiver();

        IntentFilter notificationIntent = new IntentFilter();

        notificationIntent
                .addAction(MatabbatManager.MATABAT_LOCATION_ACTION);
        notificationIntent
                .addAction(MatabbatManager.MATABAT_New_DATA_RECEIVED);
        notificationIntent
                .addAction(MatabbatManager.STATUS_NOTIFCATION_ACTION);
        registerReceiver(mainNotificationReceiver, notificationIntent);

        mainNotificationReceiverStarted = true;

    }

    if (!processedObstacleReceiverStarted) {
        processedObstacleReceiver = new ProcessedObstacleReceiver();
        registerReceiver(processedObstacleReceiver, new IntentFilter(
                MatabbatManager.MATABAT_ALARM_LOCATION_ACTION));
        processedObstacleReceiverStarted = true;

    }

}

private void unRegisterReceivers() {

        if (mainNotificationReceiverStarted) {
            unregisterReceiver(mainNotificationReceiver);
            mainNotificationReceiverStarted = false;
        }
        if (processedObstacleReceiverStarted) {
            unregisterReceiver(processedObstacleReceiver);
            processedObstacleReceiverStarted = false;
        }

    }



@Override
    protected void onDestroy() {
        // TODO Auto-generated method stub
        super.onDestroy();

        try {

            unRegisterReceivers();
            mWakeLock.release();//keep screen on
        } catch (Exception e) {
            Log.e(MatabbatManager.TAG, getClass()+" Releasing receivers-"+e.getMessage());
        }

    }

解决方案

it depends on where you have register the receiver. The complementary method pairs are

onCreate - onDestroy
onResume - onPause
onStart  - onStop

if you register the receiver in the first one then unregister it in it's ending method.

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