Clear MKMapView's cache of tiles?

Question

I\'m working on an iPhone game that uses an MKMapView as the playfield. After only a couple of minutes of play the app inevitably starts to get sluggish and eventually crash

Answer 1

Are you setting the reuse identifier on your annotation views? (This means the system can detach those views and only keep a small number of views in memory at once. It also increases scrolling performance, because scrolling will reuse the detached views.)

Use this method to get an annotation view to be reused:

 - (MKAnnotationView *)dequeueReusableAnnotationViewWithIdentifier:(NSString *)identifier