swift-sample-region-notification-2.swift

func setupMapView(){
        
    var annotationList = [MKPointAnnotation]()
    var circleList = [MKCircle]()
    
    let locationName = "Tokyo Tower"
    let coordiate = CLLocationCoordinate2DMake(35.658626, 139.745471)
    
    // setup annotation
    let annotation = MKPointAnnotation()
    annotation.coordinate = coordiate
    annotation.title = locationName
    
    annotationList.append(annotation)
    
    // setup circle
    let circle = MKCircle(center: coordiate, radius: 50)
    circleList.append(circle)
    
    // add to map view
    mapView.addAnnotations([annotation])
    mapView.addOverlays([circle])
}