I want get callback, always then map did change zooming.
I try use
- (void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated;
But it callback, when change is significant.
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refer bellow links may be it will helps http://stackoverflow.com/questions/6426203/what-event-is-fired-when-mkmapview-extent-changes http://stackoverflow.com/questions/1166444/mkmapview-zoom-and-region – Himanshu padia Nov 19 '13 at 11:52
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You mean you want to know when map region changes _while_ dragging or zooming? See [this answer](http://stackoverflow.com/a/11675587/467105) by Jano. You'll need pan and pinch gesture recognizers. – Nov 19 '13 at 12:48