Setting scroll X, Y and related attributes for TYPE_VIEW_SCROLLED event.

Change-Id: Idec0e333a0d3c3a0c232d3e2240f18174e0ea88c
diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index dda9a16..8648ae5 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -633,6 +633,11 @@
             if (mCurrentPage != getNextPage()) {
                 AccessibilityEvent ev =
                         AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_SCROLLED);
+                ev.setScrollable(true);
+                ev.setScrollX(getScrollX());
+                ev.setScrollY(getScrollY());
+                ev.setMaxScrollX(mMaxScrollX);
+                ev.setMaxScrollY(0);
 
                 sendAccessibilityEventUnchecked(ev);
             }
@@ -2360,7 +2365,7 @@
     @Override
     public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
         super.onInitializeAccessibilityEvent(event);
-        event.setScrollable(true);
+        event.setScrollable(getPageCount() > 1);
     }
 
     @Override