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问题:
Googling around, I have seen this problem posted many times, some of the posts on this forum over that last few years. I have never seen anyone get a straight answer.
I have a foreground service that tries to stop itself after running for 2 hours by doing a this.StopSelf(). I've tried it when it's bound and when it's unbound. On the AVD and on a device.
It simply does not work. Is this a bug in Android? (running 2.3.3).
How can a service stop itself?
回答1:
If you use a foreground service, you should call:
stopForeground(true);
Just like you start it with startForeground
.
stopSelf
is meant to be used for normal services. a foreground service is special... :)
By the way, in case your app should work on older devices, you should check the compatibility code offered here.
回答2:
The only way I have found to stop a service with certainty is to use:
android.os.Process.killProcess(android.os.Process.myPid());
This behavior can be caused by using worker threads that have not finished when the stopSelf
is called. If you are using worker threads, be careful how you employ this - you may leak memory if you don't clean up before executing the line.
回答3:
I met a similar problem.Through my search found that: In other activity's onCreate method I bind the service,but not unbind it onDestory method.After fix that,when I call stopSelf then the service's onDestory method is call. I hope it can help you.
At same time,I find base from Android gover document.
A service can be both started and have connections bound to it. In such a case, the system will keep the service running as long as either it is started or there are one or more connections to it with the Context.BIND_AUTO_CREATE flag. Once neither of these situations hold, the service's onDestroy() method is called and the service is effectively terminated. All cleanup (stopping threads, unregistering receivers) should be complete upon returning from onDestroy().
回答4:
I had this problem and searching I found this thread. My app's problem is that when service calls stopSelf(), the foreground activity that binds the service is still running. Thne stopSelf is called but the service is not destroyed as the foreground activity is still bound. When I leave the activity by pressing back or going to home screen, then the service is destroyed. In short, stopSelf won't work when a foreground activity is bound.
回答5:
I encounter this issue of selfStop()
that not working too.
The main idea to understand is that the Service WILL NOT stop,
if a running loop is still running (while(mDoWhile)
for example).
Or any other issue that need to be destroyed / unregistered first.
So to make the stopSelf()
or stopService(intent)
works,
implement onDestroy()
within your service:
@Override
public void onDestroy()
{
// Unregistered or disconnect what you need to
// For example: mGoogleApiClient.disconnect();
// Or break the while loop condition
// mDoWhile = false;
super.onDestroy();
}
回答6:
I was facing same problem too.
As we all know that Service
runs on App's UI Thread
. So, until you've Thread
that is running in background in your service and you are calling stopSelf()
then it won't work. For that you have to stop that Thread
first and then execute stopSelf()
.
After stoping all background Thread
from your Service
stopSelf()
method will definitely work.
回答7:
if you both called startService and bindService.you should unbindService frist,otherwish the stopSelf will not work.
回答8:
stopSelf
might not destroy the service if the conditions are not favorable, but you can stopService
with the application context. But make sure the service doesn't restart before calling stopService
inside service.
stopService(applicationContext, MyService::class.java)