Unable to show custom markers in Google Maps

[CLAUDIO RICCARDI]

Hi,

After update to the new version of Xamarin.Forms, custom pins are no longer visible on the map.

This is the custom renderer I use:

<<<

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using Android.App;

using Android.Content;

using Android.Gms.Maps;

using Android.Gms.Maps.Model;

using Android.OS;

using Android.Runtime;

using Android.Views;

using Android.Widget;

using WaterMeter;

using WaterMeter.Customizations;

using WaterMeter.Droid;

using Xamarin.Forms;

using Xamarin.Forms.Maps;

using Xamarin.Forms.Maps.Android;

[assembly: ExportRenderer(typeof(CustomMap), typeof(CustomMapRenderer))]

namespace WaterMeter.Droid

{

    public class CustomMapRenderer : MapRenderer

    {

        List<CustomPin> customPins;

        public CustomMapRenderer(Context context) : base(context)

        {

        }

        protected override void OnElementChanged(Xamarin.Forms.Platform.Android.ElementChangedEventArgs<Map> e)

        {

            base.OnElementChanged(e);

            if (e.OldElement != null)

            {

                ;

            }

            if (e.NewElement != null)

            {

                var formsMap = (CustomMap)e.NewElement;

                customPins = formsMap.CustomPins;

                Control.GetMapAsync(this);

            }

        }

        protected override MarkerOptions CreateMarker(Pin pin)

        {

            var marker = new MarkerOptions();

            marker.SetPosition(new LatLng(pin.Position.Latitude, pin.Position.Longitude));

            marker.SetTitle(pin.Label);

            marker.SetSnippet(pin.Address);

            CustomPin customPin = GetCustomPin(pin);

            if (customPin.Value > 0)

            {

                marker.SetIcon(BitmapDescriptorFactory.DefaultMarker(BitmapDescriptorFactory.HueGreen));

                //marker.SetIcon(ImageSource.FromResource("WaterMeter.Assets.Images.WaterMeterIcon.png", assembly);

            }

            else

            {

                marker.SetIcon(BitmapDescriptorFactory.DefaultMarker());

            }

            return marker;

        }

        CustomPin GetCustomPin(Pin pin)

        {

            foreach (var p in customPins)

            {

                if (p.Id == pin.Id)

                {

                    return p;

                }

            }

            return null;

        }

        protected override void OnMapReady(GoogleMap map)

        {

            base.OnMapReady(map);

        }

    }

}

>>>

The custom renderer is triggered, but the custom pins are not visible.

The xaml for the map page is this:

<?xml version="1.0" encoding="utf-8" ?>

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"

             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"

             xmlns:maps="clr-namespace:Xamarin.Forms.Maps;assembly=Xamarin.Forms.Maps"

             xmlns:local="clr-namespace:WaterMeter.Customizations;assembly=WaterMeter"

             x:Class="WaterMeter.MapPage">

    <ContentPage.Content>

        <local:CustomMap x:Name="locationsMap" 

              HorizontalOptions="FillAndExpand"

              VerticalOptions="FillAndExpand"

              IsShowingUser="True"

              MapType="Hybrid"/>

    </ContentPage.Content>

</ContentPage>

Xamarin.Forms     version = 2.5.0.122203

Xamarin.Forms.Maps     version = 2.5.0.122203

Xaml.Plugin.Geolocator     version = 4.2.0

Can you hel me?

[Vijayakumar Mariappan]

Hi Claudio Riccardi, 

 

It look like you are facing issues in Xamarin.Forms maps. You can log your issues under the below links. 

  

https://bugzilla.xamarin.com/ 

https://github.com/xamarin/Xamarin.Forms/issues 

 

Regards, 

Vijay