I want to move the MKMapView compass. I wanted to get a reference for it by something like this:
let compassView = mapView.subviews.filter {$0 is NSClassFromString("MKCompassView")}
However the compiler complains " Use of undeclared type 'NSClassFromString' ". How can I fix this code?
iOS 11
you should use MKCompassButton
, doc explaining the new stuff: WWDC 2017 new MapKit presentation.
let compassButton = MKCompassButton(mapView:mapView)
compassButton.frame.origin = CGPoint(x: 20, y: 20)
compassButton.compassVisibility = .visible
view.addSubview(compassButton)
iOS < 11
You might try to use String(describing:)
, something like:
if let compassButton = (mapView.subviews.filter { String(describing:$0).contains("MKCompassView") }.first) {
print(compassButton)
}