[Xaml] support native views and native bindings (#266)

Allows including Native views directly in xaml.
Support for ios, android, UWP

1 files changed, 47 insertions, 0 deletions

diff --git a/Xamarin.Forms.Platform.UAP/NativeBindingService.cs b/Xamarin.Forms.Platform.UAP/NativeBindingService.cs
new file mode 100644
index 00000000..e999af2a
--- /dev/null
+++ b/Xamarin.Forms.Platform.UAP/NativeBindingService.cs
@@ -0,0 +1,47 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Windows.UI.Xaml;
+
+#if WINDOWS_UWP
+[assembly: Xamarin.Forms.Dependency(typeof(Xamarin.Forms.Platform.UWP.NativeBindingService))]
+namespace Xamarin.Forms.Platform.UWP
+#else
+[assembly: Xamarin.Forms.Dependency(typeof(Xamarin.Forms.Platform.WinRT.NativeBindingService))]
+namespace Xamarin.Forms.Platform.WinRT
+#endif
+{
+    public class NativeBindingService : Xaml.INativeBindingService
+    {
+        public bool TrySetBinding(object target, string propertyName, BindingBase binding)
+        {
+            var view = target as FrameworkElement;
+            if (view == null)
+                return false;
+            if (target.GetType().GetProperty(propertyName)?.GetMethod == null)
+                return false;
+            view.SetBinding(propertyName, binding);
+            return true;
+        }
+
+        public bool TrySetBinding(object target, BindableProperty property, BindingBase binding)
+        {
+            var view = target as FrameworkElement;
+            if (view == null)
+                return false;
+            view.SetBinding(property, binding);
+            return true;
+        }
+
+        public bool TrySetValue(object target, BindableProperty property, object value)
+        {
+            var view = target as FrameworkElement;
+            if (view == null)
+                return false;
+            view.SetValue(property, value);
+            return true;
+        }
+    }
+}