I have an Activity that implements LocationListener.
public class MyActivity extends MapActivity implements
LocationListener
In my activity, I register a locationlistener in the onCreate()
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, minTime,
distance, this);
In the onDestroy method, I'm removing the registration for my
locationlistener.
@Override
protected void onDestroy() {
Utils.addDebugMsg(this,"onDestroy");
lm.removeUpdates(this);
super.onDestroy();
}
In my application, I can change the minTime and distance, so I re-
initialize my listener like this :
private void initializeGpsListener() {
lm.removeUpdates(this);
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, minTime,
distance, this);
}
For debugging purposes, I write something to the screen whenever a
provider is enabled (in this case GPS).
@Override
public void onProviderEnabled(String provider) {
Utils.addDebugMsg(this,"onProviderEnabled : " + provider);
}
What I noticed is that sometimes, multiple instances of my activity
(or locationlistener) are "kept around". Each time I turn the GPS
provider on, instead of seeing 1 statement "onProviderEnabled : GPS",
I see several different instances of my Activity printing this line
(all at the same time).
I want to keep the listener around, as it needs to update the location
even when the activity is not in the front , so removing it in
onPause() is not an option.
How do I clean up these listeners ( = my activities), and make sure
that only 1 remains active throughout the application.
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