Broadcast Receiver in IntentService (Service has leaked IntentReceiver)

I try to implement an IntentService with a BroadcastReceiver that reacts on the SCAN_RESULTS_AVAILABLE_ACTION.

The IntentService is supposed to compare Lists whenever onReceive is called. I always get the

"Service has leaked IntentReceiver"

error even though I unregister the BroadcastReceiver in onDestroy().

Here is the code:

public class MyClass extends IntentService {
    private HashMap<String, List<String>>;
    private WifiManager mWifiManager;
    private WifiReceiver mWifiReceiver; 

public MyClass() {

    super("MyClass");
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    mWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
    mWifiReceiver = new WifiReceiver();
    registerReceiver(mWifiReceiver, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));
    mWifiManager.createWifiLock(WifiManager.WIFI_MODE_SCAN_ONLY,"ScanLock");
    mWifiManager.setWifiEnabled(true);

return START_NOT_STICKY;
}

@Override
public void onDestroy(){
    unregisterReceiver(mWifiReceiver);
    mWifiManager.setWifiEnabled(false);
}

@Override
protected void onHandleIntent(Intent intent) {
        开发者_运维百科// TODO Auto-generated method stub

    }

class WifiReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
    //Here I do my stuff with the scan results
    //should be called every 5 seconds
    }
}

Where is the problem in the code?

Why do I keep getting this error?

I still have to learn a lot about Android, but I think the IntentService is the right way to go since I do not expect any result from this class. It should just stop when I send a call stopService(). This IntentService is called by another IntentService! Is that a problem?

Thanks for helping.

I try to implement an IntentService with a BroadcastReceiver that reacts on the SCAN_RESULTS_AVAILABLE_ACTION.

This is largely pointless. Your receiver will be registered for a few seconds at most, hopefully.

I still have to learn a lot about Android, but I think the IntentService is the right way to go since I do not expect any result from this class.

That makes no sense whatsoever. You use an IntentService when you have a short bit of work that needs to be performed in a background thread. For example, if you use AlarmManager to check for new email messages every 15 minutes, or you have an activity kick off a large file download, you would use IntentService.

It should just stop when I send a call stopService().

You never call stopService() on an IntentService. The IntentService stops itself once onHandleIntent() returns. This is why your BroadcastReceiver will be removed within seconds -- your onHandleIntent() should only be running for seconds.

This IntentService is called by another IntentService!

This is unlikely to be a good design.

Try registering BroadcastReceiver in OnCreate() instead of OnStartCommand(),

That should fix your problem.