prs/prs.mobile.new/PRS.Mobile/Modules/Deliveries/Edit/Views/DeliveryEditMapView.xaml.cs

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Syncfusion.SfMaps.XForms;
using Xamarin.Essentials;
using Xamarin.Forms;
using Xamarin.Forms.Xaml;

namespace PRS.Mobile
{
    [XamlCompilation(XamlCompilationOptions.Compile)]
    public partial class DeliveryEditMapView
    {

        private string? _currentaddress;
        private Location? _currentlocation;
        
        public DeliveryEditMapView()
        {
            InitializeComponent();
        }
        
        public override void Refresh()
        {
            NoMap.IsVisible = true;
            Map.IsVisible = false;
            
            if (ViewModel == null)
                return;
            
                            
            var address = $"{ViewModel.Item.Street} {ViewModel.Item.City} {ViewModel.Item.PostCode}".Trim()
                .Replace("  ", " ");

            if (string.Equals(address, _currentaddress))
            {
                UpdateMap(_currentlocation);
                return;
            }
            
            Task.Run(async () =>
            {
                var locations = await Geocoding.GetLocationsAsync(address);
                _currentaddress = address;
                _currentlocation = locations.FirstOrDefault();
                Dispatcher.BeginInvokeOnMainThread(() => UpdateMap(_currentlocation));
                
            });
        }
        
        private void UpdateMap(Location? location)
        {

            if (location == null)
                return;
            
            NoMap.IsVisible = false;
            Map.IsVisible = true;
            
            if (Device.RuntimePlatform.Equals(Device.iOS))
            {
                Layer.MarkerSettings.MarkerIcon = MapMarkerIcon.Circle;
                Layer.MarkerSettings.IconColor = Color.DarkBlue;
                Layer.MarkerSettings.IconSize = 15;
            }
            else
            {
                Layer.MarkerSettings.MarkerIcon = MapMarkerIcon.Image;
                Layer.MarkerSettings.ImageSource = "mapmarker";
                Layer.MarkerSettings.IconSize = 35;
            }


            Layer.MarkerSettings.FontAttributes = FontAttributes.Bold;
            Layer.MarkerSettings.LabelSize = 20;
            Layer.MarkerSettings.LabelColor = Color.DarkBlue;
            
            MapMarker marker = new MapMarker();
            marker.Label = "";
            
            marker.Latitude = location.Latitude.ToString(CultureInfo.InvariantCulture);
            marker.Longitude = location.Longitude.ToString(CultureInfo.InvariantCulture);
            Layer.Markers.Add(marker);
            Layer.GeoCoordinates = new Point(location.Latitude, location.Longitude); //ViewModel.Coordinates;
            Map.ZoomLevel = 14;
        }
    }
}