Initialize CollectionView when scrolling direction changed. (#2961)

* [NUI] Initialize CollectionView when scrolling direction changed.

if scrolling direction is changed,
all layout need to be updated and initialized.

* [NUI] remove unnecessary layout calculate call.

diff --git a/src/Tizen.NUI.Components/Controls/RecyclerView/CollectionView.cs b/src/Tizen.NUI.Components/Controls/RecyclerView/CollectionView.cs
index 671a648..5fd4759 100755 (executable)
--- a/src/Tizen.NUI.Components/Controls/RecyclerView/CollectionView.cs
+++ b/src/Tizen.NUI.Components/Controls/RecyclerView/CollectionView.cs
@@ -306,15 +306,11 @@ namespace Tizen.NUI.Components
             }
             set
             {
-                base.ScrollingDirection = value;
-
-                if (ScrollingDirection == Direction.Horizontal)
-                {
-                    ContentContainer.SizeWidth = ItemsLayouter.CalculateLayoutOrientationSize();
-                }
-                else
+                if (base.ScrollingDirection != value)
                 {
-                    ContentContainer.SizeHeight = ItemsLayouter.CalculateLayoutOrientationSize();
+                    base.ScrollingDirection = value;
+                    needInitalizeLayouter = true;
+                    Init();
                 }
             }
         }