Add user event logging for page rearrangement and LEFT/RIGHT swipes
1. Call logOverviewRearrange logging call ONLY when the order actually changed
2. Call logActionOnContainer when containers are swiped.
Bug: 32457561
Bug: 32457561

06-30 11:23:04.082  6585  6585 D UserEvent: action:SWIPE direction=LEFT
06-30 11:23:04.082  6585  6585 D UserEvent:  Source child:WORKSPACE id=2
06-30 11:23:04.082  6585  6585 D UserEvent:  Elapsed container 50436 ms session 50436 ms action 0 ms
06-30 11:23:04.082  6585  6585 D UserEvent:  isInLandscapeMode false
06-30 11:23:04.082  6585  6585 D UserEvent:  isInMultiWindowMode false

06-30 11:23:08.266  6585  6585 D UserEvent: action:SWIPE direction=LEFT
06-30 11:23:08.266  6585  6585 D UserEvent:  Source child:WORKSPACE id=1
06-30 11:23:08.266  6585  6585 D UserEvent:  Elapsed container 54620 ms session 54620 ms action 0 ms
06-30 11:23:08.266  6585  6585 D UserEvent:  isInLandscapeMode false
06-30 11:23:08.266  6585  6585 D UserEvent:  isInMultiWindowMode false

06-30 11:23:10.742  6585  6585 D UserEvent: action:SWIPE direction=LEFT
06-30 11:23:10.742  6585  6585 D UserEvent:  Source child:WORKSPACE id=0
06-30 11:23:10.742  6585  6585 D UserEvent:  Elapsed container 57096 ms session 57096 ms action 0 ms
06-30 11:23:10.742  6585  6585 D UserEvent:  isInLandscapeMode false
06-30 11:23:10.742  6585  6585 D UserEvent:  isInMultiWindowMode false

06-30 11:23:17.286  6585  6585 D UserEvent: action:SWIPE direction=RIGHT
06-30 11:23:17.286  6585  6585 D UserEvent:  Source child:WORKSPACE id=-1
06-30 11:23:17.286  6585  6585 D UserEvent:  Elapsed container 63639 ms session 63639 ms action 0 ms
06-30 11:23:17.286  6585  6585 D UserEvent:  isInLandscapeMode false
06-30 11:23:17.286  6585  6585 D UserEvent:  isInMultiWindowMode false
06-30 11:23:19.879  6585  6585 D UserEvent: action:SWIPE direction=RIGHT
06-30 11:23:19.879  6585  6585 D UserEvent:  Source child:WORKSPACE id=0
06-30 11:23:19.879  6585  6585 D UserEvent:  Elapsed container 66233 ms session 66233 ms action 0 ms
06-30 11:23:19.879  6585  6585 D UserEvent:  isInLandscapeMode false
06-30 11:23:19.879  6585  6585 D UserEvent:  isInMultiWindowMode false

06-30 11:23:23.811  6585  6585 D UserEvent: action:SWIPE direction=RIGHT
06-30 11:23:23.811  6585  6585 D UserEvent:  Source child:WORKSPACE id=1
06-30 11:23:23.811  6585  6585 D UserEvent:  Elapsed container 70165 ms session 70165 ms action 0 ms
06-30 11:23:23.811  6585  6585 D UserEvent:  isInLandscapeMode false
06-30 11:23:23.811  6585  6585 D UserEvent:  isInMultiWindowMode false


Change-Id: I11a48ee44aaa87863e76ccf2b46f499c28e96748
diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index ed225c9..dcc7a9d 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -408,9 +408,10 @@
         if (getChildCount() == 0) {
             return;
         }
+        int prevPage = mCurrentPage;
         mCurrentPage = validateNewPage(currentPage);
         updateCurrentPageScroll();
-        notifyPageSwitchListener();
+        notifyPageSwitchListener(prevPage);
         invalidate();
     }
 
@@ -418,7 +419,7 @@
      * Should be called whenever the page changes. In the case of a scroll, we wait until the page
      * has settled.
      */
-    protected void notifyPageSwitchListener() {
+    protected void notifyPageSwitchListener(int prevPage) {
         updatePageIndicator();
     }
 
@@ -585,9 +586,10 @@
         } else if (mNextPage != INVALID_PAGE && shouldInvalidate) {
             sendScrollAccessibilityEvent();
 
+            int prevPage = mCurrentPage;
             mCurrentPage = validateNewPage(mNextPage);
             mNextPage = INVALID_PAGE;
-            notifyPageSwitchListener();
+            notifyPageSwitchListener(prevPage);
 
             // We don't want to trigger a page end moving unless the page has settled
             // and the user has stopped scrolling