Small updates for recents launch animation

- Increase translation x of adjacnet tasks, in order to maintain
  gaps between pages
- Fix parallax when launching side task (used to be based on launched
  task's translation, but now that is 0 since there's no curve)

Change-Id: Iace47761a6e0a69982cf2eac34436b7164e60792
diff --git a/quickstep/res/values/dimens.xml b/quickstep/res/values/dimens.xml
index 6a76b45..05dda9c 100644
--- a/quickstep/res/values/dimens.xml
+++ b/quickstep/res/values/dimens.xml
@@ -36,7 +36,7 @@
     <!-- Launcher app transition -->
     <dimen name="content_trans_y">25dp</dimen>
     <dimen name="workspace_trans_y">80dp</dimen>
-    <dimen name="recents_adjacent_trans_x">120dp</dimen>
+    <dimen name="recents_adjacent_trans_x">140dp</dimen>
     <dimen name="recents_adjacent_trans_y">80dp</dimen>
     <fraction name="recents_adjacent_scale">150%</fraction>
 </resources>
diff --git a/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java b/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java
index 27b7f52..ab4591c 100644
--- a/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java
+++ b/quickstep/src/com/android/launcher3/LauncherAppTransitionManagerImpl.java
@@ -320,26 +320,24 @@
         } else {
             // We are launching an adjacent task, so parallax the center and other adjacent task.
             TaskView centerTask = (TaskView) recentsView.getPageAt(centerTaskIndex);
-            float translationX = Math.abs(v.getTranslationX());
-            ObjectAnimator centerTaskParallaxToRight =
+            float translationX = mRecentsTransX / 2;
+            ObjectAnimator centerTaskParallaxOffscreen =
                     LauncherAnimUtils.ofPropertyValuesHolder(centerTask,
                             new PropertyListBuilder()
-                                    .scale(v.getScaleX())
                                     .translationX(isRtl ? -translationX : translationX)
                                     .build());
-            launcherAnimator.play(centerTaskParallaxToRight);
+            launcherAnimator.play(centerTaskParallaxOffscreen);
             int otherAdjacentTaskIndex = centerTaskIndex + (centerTaskIndex - launchedTaskIndex);
             if (otherAdjacentTaskIndex >= 0
                     && otherAdjacentTaskIndex < recentsView.getPageCount()) {
                 TaskView otherAdjacentTask = (TaskView) recentsView.getPageAt(
                         otherAdjacentTaskIndex);
-                ObjectAnimator otherAdjacentTaskParallaxToRight =
+                ObjectAnimator otherAdjacentTaskParallaxOffscreen =
                         LauncherAnimUtils.ofPropertyValuesHolder(otherAdjacentTask,
                                 new PropertyListBuilder()
-                                        .translationX(otherAdjacentTask.getTranslationX()
-                                                + (isRtl ? -translationX : translationX))
+                                        .translationX(isRtl ? -translationX : translationX)
                                         .build());
-                launcherAnimator.play(otherAdjacentTaskParallaxToRight);
+                launcherAnimator.play(otherAdjacentTaskParallaxOffscreen);
             }
         }