1 files changed, 100 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.Android/Renderers/CarouselPageRenderer.cs b/Xamarin.Forms.Platform.Android/Renderers/CarouselPageRenderer.cs
new file mode 100644
index 00000000..1533005a
--- /dev/null
+++ b/Xamarin.Forms.Platform.Android/Renderers/CarouselPageRenderer.cs
@@ -0,0 +1,100 @@
+using System.ComponentModel;
+using Android.Support.V4.View;
+using Android.Views;
+
+namespace Xamarin.Forms.Platform.Android
+{
+	public class CarouselPageRenderer : VisualElementRenderer<CarouselPage>
+	{
+		ViewPager _viewPager;
+
+		public CarouselPageRenderer()
+		{
+			AutoPackage = false;
+		}
+
+		protected override void Dispose(bool disposing)
+		{
+			if (disposing && _viewPager != null)
+			{
+				if (_viewPager.Adapter != null)
+					_viewPager.Adapter.Dispose();
+				_viewPager.Dispose();
+				_viewPager = null;
+			}
+			base.Dispose(disposing);
+		}
+
+		protected override void OnAttachedToWindow()
+		{
+			base.OnAttachedToWindow();
+			var adapter = new CarouselPageAdapter(_viewPager, Element, Context);
+			_viewPager.Adapter = adapter;
+			_viewPager.SetOnPageChangeListener(adapter);
+
+			adapter.UpdateCurrentItem();
+
+			Element.SendAppearing();
+		}
+
+		protected override void OnDetachedFromWindow()
+		{
+			base.OnDetachedFromWindow();
+			Element.SendDisappearing();
+		}
+
+		protected override void OnElementChanged(ElementChangedEventArgs<CarouselPage> e)
+		{
+			base.OnElementChanged(e);
+
+			if (_viewPager != null)
+			{
+				RemoveView(_viewPager);
+				_viewPager.SetOnPageChangeListener(null);
+				_viewPager.Dispose();
+			}
+
+			_viewPager = new ViewPager(Context);
+
+			AddView(_viewPager);
+
+			_viewPager.OffscreenPageLimit = int.MaxValue;
+		}
+
+		protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
+		{
+			base.OnElementPropertyChanged(sender, e);
+
+			if (e.PropertyName == "CurrentPage" && Element.CurrentPage != null)
+			{
+				if (!Element.Batched)
+					UpdateCurrentItem();
+			}
+		}
+
+		protected override void OnLayout(bool changed, int l, int t, int r, int b)
+		{
+			base.OnLayout(changed, l, t, r, b);
+			if (_viewPager != null)
+			{
+				_viewPager.Measure(MeasureSpecFactory.MakeMeasureSpec(r - l, MeasureSpecMode.Exactly), MeasureSpecFactory.MakeMeasureSpec(b - t, MeasureSpecMode.Exactly));
+				_viewPager.Layout(0, 0, r - l, b - t);
+			}
+		}
+
+		protected override void OnMeasure(int widthMeasureSpec, int heightMeasureSpec)
+		{
+			_viewPager.Measure(widthMeasureSpec, heightMeasureSpec);
+			SetMeasuredDimension(_viewPager.MeasuredWidth, _viewPager.MeasuredHeight);
+		}
+
+		void UpdateCurrentItem()
+		{
+			int index = CarouselPage.GetIndex(Element.CurrentPage);
+			if (index < 0 || index >= Element.LogicalChildren.Count)
+				return;
+
+			_viewPager.CurrentItem = index;
+		}
+	}
+}
+\ No newline at end of file