adjust UI

Gallery.Share/Resources/Converters.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Globalization;
+using Gallery.Resources.UI;
+using Xamarin.Forms;
+
+namespace Gallery.Resources
+{
+    public class FavoriteIconConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return value == null ?
+                Definition.IconLove :
+                Definition.IconCircleLove;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}