From 45c8048f4f8996f085c78621efaf710c907ce213 Mon Sep 17 00:00:00 2001
From: Manu Cornet <manucornet@google.com>
Date: Tue, 20 Dec 2016 18:42:16 -0800
Subject: [PATCH] 2D Recents: to and from home, animate task views as a block

Bug: 32101881
Test: Checked animations to/from home on local sw600dp device
Change-Id: I74b8b02bb39be6d4e4553f7d74550ff177d47a5e
---
 .../systemui/recents/views/TaskStackAnimationHelper.java   | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackAnimationHelper.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackAnimationHelper.java
index ed86d4cf55be2..a2ee4c565ff8f 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackAnimationHelper.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackAnimationHelper.java
@@ -105,6 +105,7 @@ public class TaskStackAnimationHelper {
     private static final Interpolator ENTER_WHILE_DOCKING_INTERPOLATOR =
             Interpolators.LINEAR_OUT_SLOW_IN;
 
+    private final int mEnterAndExitFromHomeTranslationOffset;
     private TaskStackView mStackView;
 
     private TaskViewTransform mTmpTransform = new TaskViewTransform();
@@ -113,6 +114,8 @@ public class TaskStackAnimationHelper {
 
     public TaskStackAnimationHelper(Context context, TaskStackView stackView) {
         mStackView = stackView;
+        mEnterAndExitFromHomeTranslationOffset = Recents.getConfiguration().isGridEnabled
+                ? 0 : DOUBLE_FRAME_OFFSET_MS;
     }
 
     /**
@@ -260,7 +263,7 @@ public class TaskStackAnimationHelper {
                 AnimationProps taskAnimation = new AnimationProps()
                         .setInitialPlayTime(AnimationProps.BOUNDS,
                                 Math.min(ENTER_EXIT_NUM_ANIMATING_TASKS, taskIndexFromFront) *
-                                        DOUBLE_FRAME_OFFSET_MS)
+                                        mEnterAndExitFromHomeTranslationOffset)
                         .setStartDelay(AnimationProps.ALPHA,
                                 Math.min(ENTER_EXIT_NUM_ANIMATING_TASKS, taskIndexFromFront) *
                                         FRAME_OFFSET_MS)
@@ -321,7 +324,7 @@ public class TaskStackAnimationHelper {
             AnimationProps taskAnimation;
             if (animated) {
                 int delay = Math.min(ENTER_EXIT_NUM_ANIMATING_TASKS , taskIndexFromFront) *
-                        DOUBLE_FRAME_OFFSET_MS;
+                        mEnterAndExitFromHomeTranslationOffset;
                 taskAnimation = new AnimationProps()
                         .setStartDelay(AnimationProps.BOUNDS, delay)
                         .setDuration(AnimationProps.BOUNDS, EXIT_TO_HOME_TRANSLATION_DURATION)