iOS MKPolygon pattern

Question

I searched over the internet but I couldn't find an answer to this. Is possible to draw polygon filled with some pattern? I don't wanna use 3rd party libraries. I would like to achieve something similar to this: polygon with pattern

Answer 1

Yes you can do this.

UIColor has an initializer for pattern images.

guard let image = UIImage(named: "Name of the asset") else { return }
let color = UIColor(patternImage: image)

Then in your overlay renderer delegate method, you can simply assign it to your fill color.

func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) -> MKOverlayRenderer {

    // Renderer code

    yourRenderer.fillColor = color

    // Return your renderer

}