Convert MKAnnotation Coordinates to View Coordinates

Question

I am displaying a custom UIView when the user clicks on the pin (Like the Zillow app). Now the problem is that I need to place the view right above the actual pin. The MKAnnotat

Answer 1

This is perfect, but there is one little problem. If you use a different image to your Pin, than you will need make a correction to Your view Appoint to center of your pin. Like this

UIView *view = ...
CGPoint p = [mv convertCoordinate:annotation.coordinate toPointToView:mv];
CGRect frame = CGRectMake(p.x - (view.frame.size.width/2), 
                          p.y- (view.frame.size.height / 2),
                          view.frame.size.width,
                          view.frame.size.height);
view.frame = frame;
[self.view addSubView:view];

Answer 2

Use convertCoordinate:toPointToView:. Something like:

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];