Fix folder icon animation where it animates downwards on 1st run.

The first time FolderIcon#growAndFadeOut is called, the folder
icon pivot x/y is not set. By moving the call after centerAboutIcon
(which sets the pivot point), we get the expected result of the
animation growing upward.

Bug: 35126799
Change-Id: I22fccb6b23550f823eb7b4485b9584022b810323

src/com/android/launcher3/folder/Folder.java

@@ -535,7 +535,6 @@ public class Folder extends AbstractFloatingView implements DragSource, View.OnC
         }
 
         mIsOpen = true;
-        mFolderIcon.growAndFadeOut();
 
         mContent.completePendingPageChanges();
         if (!mDragInProgress) {
@@ -552,6 +551,8 @@ public class Folder extends AbstractFloatingView implements DragSource, View.OnC
         prepareReveal();
         centerAboutIcon();
 
+        mFolderIcon.growAndFadeOut();
+
         AnimatorSet anim = LauncherAnimUtils.createAnimatorSet();
         int width = getPaddingLeft() + getPaddingRight() + mContent.getDesiredWidth();
         int height = getFolderHeight();
@@ -1088,6 +1089,7 @@ public class Folder extends AbstractFloatingView implements DragSource, View.OnC
         int folderPivotY = height / 2 + (centeredTop - top);
         setPivotX(folderPivotX);
         setPivotY(folderPivotY);
+
         mFolderIconPivotX = (int) (mFolderIcon.getMeasuredWidth() *
                 (1.0f * folderPivotX / width));
         mFolderIconPivotY = (int) (mFolderIcon.getMeasuredHeight() *