Rich,
Without checking / setting those receivers for null, your code could be
trying to unregister the same receiver object multiple times. Clearly,
that's not a good thing to be doing.
-- Kostya
03.03.2011 0:10, rich friedel пишет:
I ran into an issue today where in my service I am calling
onLowMemory() and unregistering my receivers within the method before
the system kills the service.
I've (hopefully) fixed this using some suggestions I found when other
devs had the issue with ViewFlipper...
The code before looked like:
@Override
public void onLowMemory() {
super.onLowMemory();
// Unregister BroadcastReceiver
this.unregisterReceiver(this.smsReceiver);
this.unregisterReceiver(this.sentReceiver);
this.unregisterReceiver(this.deliveredReceiver);
}
The fix looks like:
@Override
public void onLowMemory() {
super.onLowMemory();
// Unregister BroadcastReceiver
if( this.smsReceiver != null ) {
this.unregisterReceiver(this.smsReceiver);
this.smsReceiver = null;
}
if( this.sentReceiver != null ) {
this.unregisterReceiver(this.sentReceiver);
this.sentReceiver = null;
}
if( this.deliveredReceiver != null ) {
this.unregisterReceiver(this.deliveredReceiver);
this.deliveredReceiver = null;
}
}
My question is, if unregisterReceiver() simply unregisters any
receivers passed to it; why does checking for a not null situation and
setting the receiver to null after unregistering the receiver make it
so it doesn't throw an illegalArguementException?
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Kostya Vasilyev -- http://kmansoft.wordpress.com
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