Fix 3482911: NPE in CustomizePagedView.resetCheckedItem

Also fixes an issue where quick swipes on an item could
cause it to animate in from (0, 0) sometimes.

Change-Id: Ie3312389bcb5109f4b26ec518a29b4aa88161377

src/com/android/launcher2/PagedView.java

@@ -1420,7 +1420,7 @@ public abstract class PagedView extends ViewGroup {
      * Otherwise, returns null.
      */
     protected Checkable getSingleCheckedGrandchild() {
-        if (mChoiceMode == CHOICE_MODE_SINGLE) {
+        if (mChoiceMode != CHOICE_MODE_MULTIPLE) {
             final int childCount = getChildCount();
             for (int i = 0; i < childCount; ++i) {
                 Page layout = (Page) getChildAt(i);
@@ -1436,14 +1436,6 @@ public abstract class PagedView extends ViewGroup {
         return null;
     }
 
-    public Object getChosenItem() {
-        View checkedView = (View) getSingleCheckedGrandchild();
-        if (checkedView != null) {
-            return checkedView.getTag();
-        }
-        return null;
-    }
-
     protected void resetCheckedGrandchildren() {
         // loop through children, and set all of their children to _not_ be checked
         final ArrayList<Checkable> checked = getCheckedGrandchildren();