Resolve search scroll hightlight issue

After getting the index of the first item that should be highlighted, Section decorator should not assume getChildAt(index) will return item at position. Instead use findViewHolderForAdapterPosition.

Bug: 170665892
Change-Id: Id81d021bde8868184013e8d51e49af7842b64125

res/layout/search_result_settings_row.xml

@@ -44,6 +44,7 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginBottom="@dimen/search_line_spacing"
+            android:maxLines="1"
             android:textColor="?android:attr/textColorPrimary"
             android:textSize="@dimen/search_hero_title_size" />
 

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

@@ -184,8 +184,7 @@ public class AllAppsGridAdapter extends
                     || viewType == VIEW_TYPE_SEARCH_THUMBNAIL
                     || viewType == VIEW_TYPE_SEARCH_ICON_ROW
                     || viewType == VIEW_TYPE_SEARCH_ICON
-                    || viewType == VIEW_TYPE_SEARCH_SUGGEST
-                    || viewType == VIEW_TYPE_SEARCH_WIDGET_LIVE;
+                    || viewType == VIEW_TYPE_SEARCH_SUGGEST;
         }
     }
 

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

@@ -98,7 +98,8 @@ public class AllAppsSectionDecorator extends RecyclerView.ItemDecoration {
                     mAppsView.getActiveRecyclerView().getLayoutManager();
             if (layoutManager.findFirstVisibleItemPosition() <= index
                     && index < parent.getChildCount()) {
-                decorationHandler.onFocusDraw(c, parent.getChildAt(index));
+                RecyclerView.ViewHolder vh = parent.findViewHolderForAdapterPosition(index);
+                if (vh != null) decorationHandler.onFocusDraw(c, vh.itemView);
             }
         }
         decorationHandler.reset();