From 44e6534e5f18c2391c2837aa0d4e340d3b6dd89a Mon Sep 17 00:00:00 2001
From: Tony Wickham <twickham@google.com>
Date: Wed, 9 Jan 2019 10:51:37 -0800
Subject: [PATCH] Fix flickering when long swiping from an app

Since we update the progress of the launcher anim when
recents scrolls, we were essentially jumping back to
the overview state every couple frames. Now we don't
update that shift once we're in long swipe mode.

Bug: 111926330
Change-Id: Ib751becb70df71679ff7557f113d6339a39777d0
---
 .../com/android/quickstep/WindowTransformSwipeHandler.java    | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
index 610ef0416f..fd4585ba19 100644
--- a/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
+++ b/quickstep/src/com/android/quickstep/WindowTransformSwipeHandler.java
@@ -422,7 +422,9 @@ public class WindowTransformSwipeHandler<T extends BaseDraggingActivity> {
             mSyncTransactionApplier = applier;
         });
         mRecentsView.setOnScrollChangeListener((v, scrollX, scrollY, oldScrollX, oldScrollY) -> {
-            updateFinalShift();
+            if (!mBgLongSwipeMode) {
+                updateFinalShift();
+            }
         });
         mRecentsView.setRecentsAnimationWrapper(mRecentsAnimationWrapper);
         mRecentsView.setClipAnimationHelper(mClipAnimationHelper);