[key event focus handling] Cleanup/Refactor/Feature

1) Focus navigation handling is refactored to Focus utility class.
New 2 step dpad navigation algorithm is inside Focus class
2) Introduced a map (or matrix) that indicates where sparse icons are located inside a grid.
This enables getting rid of the icon sorting logic which was costly.
3) Unified all the dpad handling logic inside the handleXXKeyEvent methods
4) DOWN/UP key will allow navigation between workspace icons and the hotseat
5) Folder icons allow DOWN/UP to navigate to the title

b/19381790

Change-Id: Id45b3f215ef7c1ca5f99b08e3d721e219298627a

1 files changed, 2 insertions, 2 deletions

diff --git a/src/com/android/launcher3/CellLayout.java b/src/com/android/launcher3/CellLayout.java
index e6865b2e6..72e28918f 100644
--- a/src/com/android/launcher3/CellLayout.java
+++ b/src/com/android/launcher3/CellLayout.java
@@ -578,11 +578,11 @@ public class CellLayout extends ViewGroup {
         mInterceptTouchListener = listener;
     }
 
-    int getCountX() {
+    public int getCountX() {
         return mCountX;
     }
 
-    int getCountY() {
+    public int getCountY() {
         return mCountY;
     }