How to get left-top and right-bottom latitude and longitude of map in MapKit

Question

How to get left-top and right-bottom latitude and longitude of map in MapKit? I use this code, but it doesn\'t work properly. How should I fix it?

MKCoordina         


        

Answer 1

I created an extension for MKMapView

Swift 4.2

extension MKMapView {
    func topLeftCoordinate() -> CLLocationCoordinate2D {
        return convert(.zero, toCoordinateFrom: self)
    }

    func bottomRightCoordinate() -> CLLocationCoordinate2D {
        return convert(CGPoint(x: frame.width, y: frame.height), toCoordinateFrom: self)
    }
}

Swift 2.0

extension MKMapView {
    func topLeftCoordinate() -> CLLocationCoordinate2D {
        return convertPoint(CGPoint.zero, toCoordinateFromView: self)
    }

    func bottomRightCoordinate() -> CLLocationCoordinate2D {
        return convertPoint(CGPoint(x: frame.width, y: frame.height), toCoordinateFromView: self)
    }
}