Initial changes for handling configuration changes dynamically

Bug: 71709920
Change-Id: I88cf2229dea28d01c13a5a76d2290e91b07d095e
diff --git a/src/com/android/launcher3/DropTargetBar.java b/src/com/android/launcher3/DropTargetBar.java
index cc6a58f..a3fe89a 100644
--- a/src/com/android/launcher3/DropTargetBar.java
+++ b/src/com/android/launcher3/DropTargetBar.java
@@ -111,6 +111,7 @@
 
             lp.topMargin += grid.edgeMarginPx;
             lp.height = grid.dropTargetBarSizePx;
+            lp.gravity = Gravity.CENTER_HORIZONTAL | Gravity.TOP;
         }
         setLayoutParams(lp);
         for (ButtonDropTarget button : mDropTargets) {