Question

When the user taps on the right callout accessory on my map view’s pin’s callout I am showing a popovercontroller with a view inside it. I am maintaining 2 retained properties in the mapcontroller for this. I am also releasing these properties in dealloc of the mapcontroller – which probably never happens.

When the user deselects the annotation view I want all this memory released, does assigning nil suffice?

- (void)mapView:(MKMapView *)mapView didDeselectAnnotationView:(MKAnnotationView *)view
{
    [self.informationViewController.view removeFromSuperview]; //remove from popovercontroller
    self.informationViewController = nil; 
    popoverController = nil;
}

Answer 1

Yes, it should. This sets the reference of the object to nil which in turn releases the object. I’m no expert on memory management though, so if anyone wants to downvote/correct me, feel free.