From 7538350f6d750f5e29d011834cf36a17a1e045e3 Mon Sep 17 00:00:00 2001
From: "E.Z. Hart" <hartez@users.noreply.github.com>
Date: Wed, 22 Mar 2017 04:40:15 -0600
Subject: Add gesture disposed check to FrameRenderer (#829)

---
 Xamarin.Forms.Platform.Android/AppCompat/FrameRenderer.cs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Xamarin.Forms.Platform.Android/AppCompat/FrameRenderer.cs b/Xamarin.Forms.Platform.Android/AppCompat/FrameRenderer.cs
index 6954654b..7c40ea80 100644
--- a/Xamarin.Forms.Platform.Android/AppCompat/FrameRenderer.cs
+++ b/Xamarin.Forms.Platform.Android/AppCompat/FrameRenderer.cs
@@ -83,6 +83,13 @@ namespace Xamarin.Forms.Platform.Android.AppCompat
 					ScaleGestureDetectorCompat.SetQuickScaleEnabled(_scaleDetector.Value, true);
 				handled = _scaleDetector.Value.OnTouchEvent(e);
 			}
+
+			if (_gestureDetector.IsValueCreated && _gestureDetector.Value.Handle == IntPtr.Zero)
+			{
+				// This gesture detector has already been disposed, probably because it's on a cell which is going away
+				return handled;
+			}
+
 			return _gestureDetector.Value.OnTouchEvent(e) || handled;
 		}
 
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