Get frame of annotation on map view

Question

In my app I have custom annotations where the leftCalloutAccessoryView is a circular UIView. This works perfectly in the simulator with this code:

    let rideTimeView = UIView()
    rideTimeView.frame = CGRectMake(5, 5, 50, 50)
    rideTimeView.layer.cornerRadius = 25

The problem arises when I run the app on actual devices. It works fine on (I believe) 6 and 6 Plus, but overlaps at the bottom on 4 and 5.

Is there any way I can get the dimensions of the annotation?

Answer 1

Swift 3:

To get the frame of MKAnnotationView in MKMapView, first you will need a reference to the MKAnnotation. Then do:

if let annotationView = self.mapView.view(for: annotation) {
    let frameOfAnnotationViewInMapView = annotationView.frame
}

In addition, if you want the frame of the MKAnnotationView on screen, do:

let frameOfViewInSuperview = self.mapView.convert(frameOfAnnotationViewInMapView, to: self.mapView.superview?.superview?.superview?.superview?.superview?.superview?.superview?.superview?.superview?.superview?.superview?.superview?.superview?.superview?.superview)

The number of times you need to call .superview will depend on how deep your MKMapView is nested. For my case, it was nested very deep.