Fixing focus issues in Launcher (keyboard support).

Change-Id: Ieafd713393daf5628f229a66441bd3ed293245da

src/com/android/launcher2/Workspace.java

@@ -1252,6 +1252,14 @@ public class Workspace extends SmoothPagedView
         return false;
     }
 
+    @Override
+    public int getDescendantFocusability() {
+        if (mIsSmall) {
+            return ViewGroup.FOCUS_BLOCK_DESCENDANTS;
+        }
+        return super.getDescendantFocusability();
+    }
+
     @Override
     public void addFocusables(ArrayList<View> views, int direction, int focusableMode) {
         if (!mLauncher.isAllAppsVisible()) {