Fix animation problem when swipeing up app to screen edge and release
- Consider scroll diff between currentPage and primary scroll when calculating adjacent page offset
- Removed setEnableFreeScroll call in onPrepareGestureAnimation that calls setCurrentPage and causes jumping
Fixes: 197012570
Fixes: 195740577
Test: Swipe up from app to end of screen, adjacent task should come from screen edge, and app should snap smoothly to position
Test: Swipe up from app, scroll immediately, free scroll should be enabled
Test: Swipe up immediately after quick switch, task thumbnails are loaded
Change-Id: Id88266634183dfcb18d5ba8a803883b7d6f50ab4
Merged-In: I1964b8c3bd82b22396340d2352833b2aee73a6fc
(cherry picked from commit 8ebd11af143b09c5892810d6f8d2e1dfda888864)
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index fa4d6a1..11a4884 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -1764,8 +1764,6 @@
// When switching to tasks in quick switch, ensures the snapped page's scroll maintain
// invariant between quick switch and overview, to ensure a smooth animation transition.
updateGridProperties();
- } else if (endTarget == GestureState.GestureEndTarget.RECENTS) {
- setEnableFreeScroll(true);
}
}
@@ -2906,8 +2904,11 @@
boolean isStartShift;
if (midpointIndex > -1) {
// When there is a midpoint reference task, adjacent tasks have less distance to travel
- // to reach offscreen. Offset the task position to the task's starting point.
- int midpointScroll = getScrollForPage(midpointIndex);
+ // to reach offscreen. Offset the task position to the task's starting point, and offset
+ // by current page's scroll diff.
+ int midpointScroll = getScrollForPage(midpointIndex)
+ + mOrientationHandler.getPrimaryScroll(this) - getScrollForPage(mCurrentPage);
+
getPersistentChildPosition(midpointIndex, midpointScroll, taskPosition);
float midpointStart = mOrientationHandler.getStart(taskPosition);