Fix a crash when browsing empty roots.

BUG=27292682 Change-Id: I383fd359a959e86fca3f6716575027aa3b4723cf
2016-02-24 10:11:10 -08:00
parent dd6e4c1984
commit 9b3524d839
1 changed files with 5 additions and 0 deletions
--- a/packages/DocumentsUI/src/com/android/documentsui/dirlist/FocusManager.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/FocusManager.java
@@ -113,6 +113,11 @@ class FocusManager implements View.OnFocusChangeListener {
     * Requests focus on the item that last had focus. Scrolls to that item if necessary.
     */
    public void restoreLastFocus() {
+        if (mAdapter.getItemCount() == 0) {
+            // Nothing to focus.
+            return;
+        }
+
        if (mLastFocusPosition != RecyclerView.NO_POSITION) {
            // The system takes care of situations when a view is no longer on screen, etc,
            focusItem(mLastFocusPosition);