Hi everyone,
this message is in addition to the posts at
http://groups.google.com/group/android-developers/browse_thread/thread/3f01a8576ebb0d7c/1a065e23513c1523
I have a service receiving and sending data to a server in separate
threads each. The service lifecycle methods look like this:
@Override
public void onCreate() {
super.onCreate();
receiver = new ReceiveThread(this);
myMapView.trafficMessages = new Vector<TrafficMessage>();
}
@Override
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
receiver.start();
}
@Override
public void onDestroy() {
super.onDestroy();
receiver.kill(); // sets a boolean in the while loop to false so
that run() finishes
heartbeat.kill(); // thread sending periodic messages to the
server
to keep the connection alive
stopSelf();
The activity lifecycle methods look like this:
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
TAG = getString(R.string.application_name);
setContentView(R.layout.main);
context = getApplicationContext();
initMap();
initLocationManager();
ccClient = startService(new Intent(this, ClientService.class));
}
@Override
public void onPause() {
super.onPause();
locManager.removeUpdates(locListener);
}
@Override
public void onResume() {
super.onResume();
locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,
0,
0, locListener);
}
@Override
public void onStop() {
super.onStop();
stopService(new Intent(this, cocarClient.getClass()));
}
When I press the home button, the activity onStop() method is called
but stopService() does not call the service onDestroy() method so the
threads keep running in the background.
Why doesn't the service shut down? What is the difference between the
home and back button, what is activity-service lifecycle method call
stack in these cases?
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