Display MKMapViewAnnotations within a map view's visible rect

Question

I\'m displaying an MKMapView inside a Path-style parallax table view header. To create the effect, the mapView bounds is larger than the area visible to the user. I need to set

Answer 1

I found an easier way without calculating is let the map view calculate it, then we adjust the edges.

//1: Show all annotation on the map view, but without animation
self.mapView.showAnnotations(self.mapView.annotations, animated: false)

//2: Get the current visible map rect
let currentMapRect = self.mapView.visibleMapRect

//3: Create the edges inset that you want the map view to show all annotation within
let padding = UIEdgeInsets(top: 100, left: 100, bottom: 100, right: 100)

//4: Set current map rect but with new padding, also set animation to true to see effect
self.mapView.setVisibleMapRect(currentMapRect, edgePadding: padding, animated: true)