CODEWITHSUNDEEP
androidservicecrash
nhaarman
nhaarman

Reputation: 100358

Service crashes on 'death' of Activity

I have an Activity that starts a Service.

In my Activity:

startService(new Intent(this, MyService.class));

In my Service, onStart():

/* Show notification */
int icon = R.drawable.icon;
tickerText = getResources().getString(R.string.app_name);
long when = System.currentTimeMillis();
contentTitle = getResources().getString(R.string.app_name);
contentText = getResources().getString(R.string.running);

Intent notificationIntent = new Intent(this, activityClass).setAction(Intent.ACTION_MAIN).setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
notification = new Notification(icon, tickerText, when);
notification.setLatestEventInfo(this, contentTitle, contentText, contentIntent);

notification.flags = Notification.FLAG_ONGOING_EVENT;

((NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE)).notify(0, notification);

startForeground(0, notification);

The service has a timer that does some work every 3-4 minutes, and broadcasts info to the Activity if possible. When the Activity is closed, the Service should keep doing its work.

When I run the app, and go back to the homescreen, the Service keeps running. But after a while I get these logcat messages, and the service stops:

07-03 16:55:09.440: INFO/ActivityManager(583): Process com.myapp (pid 11665) has died. 07-03 16:55:09.440: WARN/ActivityManager(583): Scheduling restart of crashed service com.myapp/.MyService in 5000ms

How can I prevent this?

Upvotes: 3

Views: 5843

Answers (3)

seb
seb

Reputation: 4319

The provided answers didn't help me. But I found a really easy way to do this, add in the Manifest

    <service android:name="..." android:process=":remote" />

http://developer.android.com/guide/topics/manifest/service-element.html

Just testing at the moment, my Activity got already killed, but my service is running.

Upvotes: 7

CommonsWare
CommonsWare

Reputation: 1006584

When I run the app, and go back to the homescreen, the Service keeps running. But after a while I get these logcat messages, and the service stops... How can I prevent this?

You don't, generally speaking.

Services are not designed to run forever. Too many developers have started services and never stopped them. And, in your case, they do so for no good reason. Having a service hang around in memory just watching the clock tick is wasteful, and it is particularly because developers do things like this that Android "crashes" services after they stick around too long.

In your case, please switch to use AlarmManager, probably in conjunction with an IntentService, so the service shuts down on its own accord when there is no more work to be done.

Upvotes: 2

James Black
James Black

Reputation: 41858

You will want to look at having your service run as a Remote Service, so that it runs in its own process.

A blog about remote services: http://saigeethamn.blogspot.com/2009/09/android-developer-tutorial-part-9.html

An example of a sample one: http://about-android.blogspot.com/2010/02/android-remote-service-sample.html

Upvotes: 1

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