Ensure that the ListViewAdapter is no longer being used by the ListVi… (#3848) fixes #3603

* Ensure that the ListViewAdapter is no longer being used by the ListView before disposing it

* Remove `RemoveAllViews` from `Dispose`

Xamarin.Forms.Platform.Android/Renderers/ListViewAdapter.cs

@@ -15,6 +15,7 @@ namespace Xamarin.Forms.Platform.Android
 {
 	internal class ListViewAdapter : CellAdapter
 	{
+		bool _disposed;
 		static readonly object DefaultItemTypeOrDataTemplate = new object();
 		const int DefaultGroupHeaderTemplateId = 0;
 		const int DefaultItemTemplateId = 1;
@@ -417,6 +418,13 @@ namespace Xamarin.Forms.Platform.Android
 
 		protected override void Dispose(bool disposing)
 		{
+			if (_disposed)
+			{
+				return;
+			}
+
+			_disposed = true;
+
 			if (disposing)
 			{
 				CloseContextActions();

Xamarin.Forms.Platform.Android/Renderers/ListViewRenderer.cs

@@ -75,6 +75,12 @@ namespace Xamarin.Forms.Platform.Android
 				_footerView?.Dispose();
 				_footerView = null;
 
+				// Unhook the adapter from the ListView before disposing of it
+				if (Control != null)
+				{
+					Control.Adapter = null;
+				}
+
 				if (_adapter != null)
 				{
 					_adapter.Dispose();
@@ -124,6 +130,12 @@ namespace Xamarin.Forms.Platform.Android
 
 				if (_adapter != null)
 				{
+					// Unhook the adapter from the ListView before disposing of it
+					if (Control != null)
+					{
+						Control.Adapter = null;
+					}
+
 					_adapter.Dispose();
 					_adapter = null;
 				}

Xamarin.Forms.Platform.Android/VisualElementRenderer.cs

@@ -238,8 +238,6 @@ namespace Xamarin.Forms.Platform.Android
 					}
 				}
 
-				RemoveAllViews();
-
 				if (Element != null)
 				{
 					Element.PropertyChanged -= _propertyChangeHandler;