1 files changed, 42 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.Android/Renderers/DescendantFocusToggler.cs b/Xamarin.Forms.Platform.Android/Renderers/DescendantFocusToggler.cs
new file mode 100644
index 00000000..1f54b7c5
--- /dev/null
+++ b/Xamarin.Forms.Platform.Android/Renderers/DescendantFocusToggler.cs
@@ -0,0 +1,42 @@
+using System;
+using Android.Views;
+
+namespace Xamarin.Forms.Platform.Android
+{
+	internal class DescendantFocusToggler : IDescendantFocusToggler
+	{
+		public bool RequestFocus(global::Android.Views.View control, Func<bool> baseRequestFocus)
+		{
+			IViewParent ancestor = control.Parent;
+			var previousFocusability = DescendantFocusability.BlockDescendants;
+			ConditionalFocusLayout cfl = null;
+
+			// Work our way up through the tree until we find a ConditionalFocusLayout
+			while (ancestor is ViewGroup)
+			{
+				cfl = ancestor as ConditionalFocusLayout;
+
+				if (cfl != null)
+				{
+					previousFocusability = cfl.DescendantFocusability;
+					// Toggle DescendantFocusability to allow this control to get focus
+					cfl.DescendantFocusability = DescendantFocusability.AfterDescendants;
+					break;
+				}
+
+				ancestor = ancestor.Parent;
+			}
+
+			// Call the original RequestFocus implementation for the View
+			bool result = baseRequestFocus();
+
+			if (cfl != null)
+			{
+				// Toggle descendantfocusability back to whatever it was
+				cfl.DescendantFocusability = previousFocusability;
+			}
+
+			return result;
+		}
+	}
+}
+\ No newline at end of file