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Editorial Team
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Asked: 2026-05-29T09:09:26+00:00

I found a memory leak while profiling my application CustomAnnotation *annotationPoint = [[CustomAnnotation alloc]

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I found a memory leak while profiling my application

CustomAnnotation *annotationPoint = [[CustomAnnotation alloc] initWithLatitude:store.latitude longitude:store.longitude];

annotationPoint.titleLabel = store.name;
annotationPoint.subtitleLabel = [NSString stringWithFormat:@"%dm", store.distance];
[annotationPoint setEvent:store];

[self.mapView addAnnotation:annotationPoint]; 
[annotationPoint release];

This is what is specified as leaking and annotationPoint.subtitleLabel = [NSString stringWithFormat:@"%dm", store.distance]; is marked with 100%

What should I do to fix this?

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1 Answer

  1. Editorial Team

    Are you calling [subtitleLabel release] in the dealloc function of CustomAnnotation?
    This would solve the issue in this case, BUT

    as I have written above : [NSString stringWithFormat] returns an autoreleased object.
    This means that you have to use autoreleasepools to have correct memory management.

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