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POMKAnnotationView memory leak issue
 

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    <p>I needed recently to test my app with Allocations because of memory warnings. Even there are no leaks, the heap keeps growing with annotations added to the map. Every time I zoom in or out, the old annotations are removed, new ones are created and added to the map : </p> <p><img src="https://i.stack.imgur.com/ADcTr.png" alt="enter image description here"></p> <p>All of the memory locations from the NumberedAnnotationView group show the marked line as the problematic in viewForAnnotation </p> <pre><code>- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id &lt;MKAnnotation&gt;)annotation{ static NSString *reuseId_big = @"bigcircle"; NumberedCircleAnnotationView * nca = nil; //nca = (NumberedCircleAnnotationView *)[self.mapView dequeueReusableAnnotationViewWithIdentifier:reuseId_big]; if ( nca == nil ) nca = [[[NumberedCircleAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:reuseId_big imageType:1] autorelease]; // THIS line nca.delegate = self; } return nca; } </code></pre> <p>The init looks like this : </p> <pre><code>-(id)initWithAnnotation:(id&lt;MKAnnotation&gt;)annotation reuseIdentifier:(NSString *)reuseIdentifier imageType:(int)imageType { self = [super initWithAnnotation: annotation reuseIdentifier: reuseIdentifier]; // THIS line if (self != nil) { // set stuff } return self; } </code></pre> <p>Even after minutes, these autoreleased objects are still there. ( 17 and 24 is the number of annotations displayed on map and removed with <code>[mapView removeAnnotations:[mapView annotations]];</code> each time I zoom in/out. </p> <p>The others, I think, are some MapKit generated stuff. I'm experiencing this in the simulator with versions 5.0 and 5.1. </p> <p>How could I fix this ? Is something that I'm missing ? Or is this the normal behavior of Mapkit ? </p> <p>Thanks! </p>
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