Workaround for IconImageSource not working in .NET MAUI Android

CustomToolbarHandler.cs

using Android.Content;
using Android.Content.Res;
using Android.Graphics.Drawables;
using Android.Runtime;
using Android.Util;
using AndroidX.AppCompat.Graphics.Drawable;
using AndroidX.Core.Content.Resources;
using Google.Android.Material.AppBar;
using JetBrains.Annotations;
using Microsoft.Maui.Handlers;

namespace Workaround;

public class CustomToolbarHandler : ToolbarHandler
{
    protected override MaterialToolbar CreatePlatformElement()
    {
        var toolbar = base.CreatePlatformElement();
        var customMaterialToolbar = new CustomMaterialToolbar(toolbar.Context);
        customMaterialToolbar.ToolbarHandler = this;
        customMaterialToolbar.LayoutParameters = toolbar.LayoutParameters;
        customMaterialToolbar.PopupTheme = toolbar.PopupTheme;
        return customMaterialToolbar;
    }
    
    class CustomMaterialToolbar : MaterialToolbar
    {
        public ToolbarHandler ToolbarHandler { get; set; }
        
        protected CustomMaterialToolbar(IntPtr javaReference, JniHandleOwnership transfer) : base(javaReference, transfer)
        {
        }

        public CustomMaterialToolbar([NotNull] Context context) : base(context)
        {
        }

        public CustomMaterialToolbar([NotNull] Context context, IAttributeSet attrs) : base(context, attrs)
        {
        }

        public CustomMaterialToolbar([NotNull] Context context, IAttributeSet attrs, int defStyleAttr) : base(context, attrs, defStyleAttr)
        {
        }

        private Drawable _menuIconDrawable;
        private bool _isDarkMode;

        private Drawable GetMenuIconDrawable()
        {
            var isDarkMode = (Context.Resources.Configuration.UiMode & UiMode.NightYes) == UiMode.NightYes;
            
            if (_menuIconDrawable == null || _isDarkMode != isDarkMode)
            {
                _isDarkMode = isDarkMode;
                var resId = isDarkMode ? Resource.Drawable.menuicon_night : Resource.Drawable.menuicon;
                _menuIconDrawable = ResourcesCompat.GetDrawable(Context.Resources, resId, null);
            }

            return _menuIconDrawable;
        }

        public override Drawable NavigationIcon
        {
            get => base.NavigationIcon;
            set
            {
                //Only use our own Drawable when the BackButton is not visible
                if (ToolbarHandler.VirtualView.BackButtonVisible)
                {
                    //Prevent the Animation from showing, as that would show the hamburger for a short amount of time
                    if (value is DrawerArrowDrawable dad)
                        dad.Progress = 1.0f;
                    
                    base.NavigationIcon = value;
                }
                else
                    base.NavigationIcon = GetMenuIconDrawable();
            }
        }

        protected override void OnConfigurationChanged(Android.Content.Res.Configuration newConfig)
        {
            base.OnConfigurationChanged(newConfig);

            //UiMode might have changed: call the setter so the logic will determine which icon to show
            NavigationIcon = NavigationIcon;
        }
    }
}

MauiProgram.cs

#if __ANDROID__
				handlers.AddHandler<Toolbar, CustomToolbarHandler>();
#endif