MKMapView的内存释放问题

by 伍雪颖

- (void)dealloc {

    self.mapView.showsUserLocation = NO;

    self.mapView.userTrackingMode  = MKUserTrackingModeNone;

    [self.mapView.layer removeAllAnimations];

    [self.mapView removeAnnotations:self.mapView.annotations];

    [self.mapView removeOverlays:self.mapView.overlays];

    [self.mapView removeFromSuperview];

    self.mapView.delegate = nil;

    self.mapView = nil;

}

尽管不能释放所有的内存,但也能释放一部分的内存.