1 files changed, 59 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.Android/AppCompat/FormsFragmentPagerAdapter.cs b/Xamarin.Forms.Platform.Android/AppCompat/FormsFragmentPagerAdapter.cs
new file mode 100644
index 00000000..99fbb396
--- /dev/null
+++ b/Xamarin.Forms.Platform.Android/AppCompat/FormsFragmentPagerAdapter.cs
@@ -0,0 +1,59 @@
+using Android.OS;
+using Android.Support.V4.App;
+using Java.Lang;
+
+namespace Xamarin.Forms.Platform.Android.AppCompat
+{
+	internal class FormsFragmentPagerAdapter<T> : FragmentPagerAdapter where T : Page
+	{
+		MultiPage<T> _page;
+
+		public FormsFragmentPagerAdapter(MultiPage<T> page, FragmentManager fragmentManager) : base(fragmentManager)
+		{
+			_page = page;
+		}
+
+		public override int Count => CountOverride;
+
+		public int CountOverride { get; set; }
+
+		public override Fragment GetItem(int position)
+		{
+			return FragmentContainer.CreateInstance(_page.Children[position]);
+		}
+
+		public override long GetItemId(int position)
+		{
+			return _page.Children[position].GetHashCode();
+		}
+
+		public override int GetItemPosition(Object objectValue)
+		{
+			var fragContainer = objectValue as FragmentContainer;
+			if (fragContainer != null && fragContainer.Page != null)
+			{
+				int index = _page.Children.IndexOf(fragContainer.Page);
+				if (index >= 0)
+					return index;
+			}
+			return PositionNone;
+		}
+
+		public override ICharSequence GetPageTitleFormatted(int position)
+		{
+			return new String(_page.Children[position].Title);
+		}
+
+		// http://stackoverflow.com/questions/18642890/fragmentstatepageradapter-with-childfragmentmanager-fragmentmanagerimpl-getfra/19099987#19099987
+		public override void RestoreState(IParcelable state, ClassLoader loader)
+		{
+		}
+
+		protected override void Dispose(bool disposing)
+		{
+			if (disposing)
+				_page = null;
+			base.Dispose(disposing);
+		}
+	}
+}
+\ No newline at end of file