Merge "Scroll AllApps to top when new padding is set." into sc-v2-dev am: 460e2c4299

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15779369

Change-Id: Ie940e57330209524bcff2a105054ca5dc3fdea7d

src/com/android/launcher3/allapps/AllAppsContainerView.java

@@ -624,6 +624,9 @@ public class AllAppsContainerView extends SpringRelativeLayout implements DragSo
         for (int i = 0; i < mAH.length; i++) {
             mAH[i].padding.top = padding;
             mAH[i].applyPadding();
+            if (mAH[i].recyclerView != null) {
+                mAH[i].recyclerView.scrollToTop();
+            }
         }
         mHeaderTop = mHeader.getTop();
     }

src/com/android/launcher3/allapps/FloatingHeaderRow.java

@@ -47,6 +47,8 @@ public interface FloatingHeaderRow {
 
     /**
      * Scrolls the content vertically.
+     * @param scroll scrolled distance in pixels for active recyclerview.
+     * @param isScrolledOut bool to determine if row is scrolled out of view
      */
     void setVerticalScroll(int scroll, boolean isScrolledOut);