Use bitwise ops on caching strategy in ListViewAdapter.cs (#1149)

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

@@ -218,7 +218,7 @@ namespace Xamarin.Forms.Platform.Android
 			else
 				layout = new ConditionalFocusLayout(_context) { Orientation = Orientation.Vertical };
 
-			if (cachingStrategy == ListViewCachingStrategy.RecycleElement && convertView != null)
+			if (((cachingStrategy & ListViewCachingStrategy.RecycleElement) != 0) && convertView != null)
 			{
 				var boxedCell = convertView as INativeElementView;
 				if (boxedCell == null)
@@ -321,7 +321,8 @@ namespace Xamarin.Forms.Platform.Android
 				return leftOver > 0;
 			}
 
-			if (((IListViewController)list).CachingStrategy == ListViewCachingStrategy.RecycleElement)
+			var strategy = ((IListViewController)list).CachingStrategy;
+			if ((strategy & ListViewCachingStrategy.RecycleElement) != 0)
 			{
 				if (_enabledCheckCell == null)
 					_enabledCheckCell = GetCellForPosition(position);
@@ -375,7 +376,7 @@ namespace Xamarin.Forms.Platform.Android
 		{
 			Cell cell = null;
 
-			if (Controller.CachingStrategy == ListViewCachingStrategy.RecycleElement)
+			if ((Controller.CachingStrategy & ListViewCachingStrategy.RecycleElement) != 0)
 			{
 				AView cellOwner = view;
 				var layout = cellOwner as ConditionalFocusLayout;
@@ -461,7 +462,8 @@ namespace Xamarin.Forms.Platform.Android
 				if (global == position || cells.Count > 0)
 				{
 					//Always create a new cell if we are using the RecycleElement strategy
-					var headerCell = _listView.CachingStrategy == ListViewCachingStrategy.RecycleElement ? GetNewGroupHeaderCell(group) : group.HeaderContent;
+					var recycleElement = (_listView.CachingStrategy & ListViewCachingStrategy.RecycleElement) != 0;
+					var headerCell = recycleElement ? GetNewGroupHeaderCell(group) : group.HeaderContent;
 					cells.Add(headerCell);
 
 					if (cells.Count == take)