objective-c – 将MKAnnotation坐标转换为视图坐标

我在用户点击图钉时显示自定义UIView(如Zillow应用程序).现在的问题是我需要将视图放在实际引脚的正上方. MKAnnotationView坐标系与地图相关.如何获取与iPhone屏幕相关的坐标,然后将我的视图放在该坐标上.

- (void)mapView:(MKMapView *)mv didSELEctAnnotationView:(MKAnnotationView *)view
{  
    // get view from storyboard 
    ZillowSearchResultAnnotation *Annotation = (ZillowSearchResultAnnotation *) view.Annotation;

    PropertyAbstractViewController *propertyAbstractViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"PropertyAbstractIdentifier"];
    propertyAbstractViewController.view.frame = CGRectMake(0,100,100);

    [propertyAbstractViewController bind:Annotation.data];

    [mv addSubview:propertyAbstractViewController.view];

}

UIView *view = ...
CGPoint p = [mv convertCoordinate:Annotation.coordinate toPointToView:mv];
CGRect frame = CGRectMake(p.x,p.y,view.frame.size.width,view.frame.size.height);
view.frame = frame;
[self.view addSubView:view];