How to Zoom Map to my annotation placemark - Swift

Question

I have one class that has all the MapKit functions and another class where I call the MapKit. My goal is to give an address (String) and the map show a placemark with zoom to that location.

So far I managed to get the map working and the placemark is in the right street, but dont zoom to the placemark location.

Map is declared like: @IBOutlet var mapPreview: MKMapView!

Here is the code of the placemark. How can I zoom to that placemark?

    var address = restaurante.rua + " " + restaurante.numero + "," + restaurante.localidade + ", Portugal"
    var geocoder = CLGeocoder()
    geocoder.geocodeAddressString(address, completionHandler: {(placemarks: [AnyObject]!, error: NSError!) -> Void in
        if let placemark = placemarks?[0] as? CLPlacemark {
            self.mapPreview.addAnnotation(MKPlacemark(placemark: placemark))

possible duplicate of [iOS MKMapView zoom to show all markers](http://stackoverflow.com/questions/3434020/ios-mkmapview-zoom-to-show-all-markers) — Shamas S, Aug 29 '15 at 18:18
Nope. Quote from that question: "to enable zooming etc around one of the points - but that's not what I want...", but this is exactly what I want. :) — Renato Pimpão, Aug 29 '15 at 18:21
The question has some really interesting answers. Check the function mentioned in the answer below. Hope that helps. — Shamas S, Aug 29 '15 at 18:22

score 1 · Accepted Answer · answered Aug 29 '15 at 18:20

1

I would recommend using the function

func showAnnotations(_ annotations: [AnyObject]!,
            animated animated: Bool)

Apple Documentation

answered Aug 29 '15 at 18:20

Shamas S

7,507
10
46
58

1

Solved by adding your function and this: self.mapPreview.showAnnotations(self.mapPreview.annotations, animated: true) – Renato Pimpão Aug 29 '15 at 18:37

How to Zoom Map to my annotation placemark - Swift

1 Answers1