feature: Android renderers

Pixiview.Android/Renderers/OptionEntryRenderer.cs

@@ -0,0 +1,28 @@
+using Android.Content;
+using Android.Graphics.Drawables;
+using Pixiview.Droid.Renderers;
+using Pixiview.UI;
+using Xamarin.Forms;
+using Xamarin.Forms.Platform.Android;
+
+[assembly: ExportRenderer(typeof(OptionEntry), typeof(OptionEntryRenderer))]
+namespace Pixiview.Droid.Renderers
+{
+    public class OptionEntryRenderer : EntryRenderer
+    {
+        public OptionEntryRenderer(Context context) : base(context)
+        {
+        }
+
+        protected override void OnElementChanged(ElementChangedEventArgs<Entry> e)
+        {
+            base.OnElementChanged(e);
+
+            if (e.NewElement != null)
+            {
+                var drawable = new ColorDrawable(e.NewElement.BackgroundColor.ToAndroid());
+                Control.SetBackground(drawable);
+            }
+        }
+    }
+}