如果用户在按钮单击时缩放它,如何从 mapView 中删除缩放。
for(注解中的id注解){
MKMapPoint annotationPoint = MKMapPointForCoordinate(annotation.coordinate);
MKMapRect zoomRect = MKMapRectMake(annotationPoint.x, annotationPoint.y, 0.0, 0.0);
[m_mapView setVisibleMapRect:zoomRect animated:YES];
}