Xamarin Forms Maps iOS bounds - show all pins on the screen

Question

Im using Xamarin Forms Maps, and I want to have the same feature on iOS as I have on Android devices - show all pins on the screen (appropriate position and zoom)

What Im looking is "Bounds" property, but that I only found on XF.GoogleMaps which nuget I dont use.

for Android in my custom renderer I pout LatLngBounds class and made a builder, thats works just fine, but on iOS I didnt find a solution.

Thanks

UPDATE #1: Is this a right method in iOS renderer to put ShowAnnotations? And how to re-pack it to MkAnnotation from Pin model?

        protected override void OnElementChanged(ElementChangedEventArgs<View> e)
        {
            base.OnElementChanged(e);

            if (e.OldElement != null)
            {
                var nativeMap = Control as MKMapView;
                nativeMap.GetViewForAnnotation = null;
                nativeMap.ZoomEnabled = true;
               
                nativeMap.CalloutAccessoryControlTapped -= OnCalloutAccessoryControlTapped;
                nativeMap.DidSelectAnnotationView -= OnDidSelectAnnotationView;
                nativeMap.DidDeselectAnnotationView -= OnDidDeselectAnnotationView;
            }

            if (e.NewElement != null)
            {
                var formsMap = (CustomMap)e.NewElement;
                var nativeMap = Control as MKMapView;
                customPins = formsMap.CustomPins;

                //MKAnnotation an = formsMap.CustomPins;
                var numberOfPins = formsMap.CustomPins.Count;
                MKAnnotation[] anotationArray = new MKAnnotation[numberOfPins];

                for (int i = 0; i < numberOfPins; i++)
                {
                    anotationArray[0].Coordinate = customPins.ElementAt(0).Position...
                }
                foreach (var pin in formsMap.CustomPins)
                {

                }
              
                nativeMap.ZoomEnabled = true;
                nativeMap.GetViewForAnnotation = GetViewForAnnotation;
                nativeMap.CalloutAccessoryControlTapped += OnCalloutAccessoryControlTapped;
                nativeMap.DidSelectAnnotationView += OnDidSelectAnnotationView;
                nativeMap.DidDeselectAnnotationView += OnDidDeselectAnnotationView;
            }
        }

Answer 1

You are looking for the ShowAnnotations on your MKMapView .

You pass in the array of pins ( annotations ) that you wish the map to center and zoom to to able all those pins to the shows at the same time:

yourMapView.ShowAnnotations (new [] { pin }, false);

Apple Docs: showAnnotations:animated:

Xamarin Docs: ShowAnnotations