diff --git a/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java b/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java
index 034d51f..588d676 100644
--- a/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java
+++ b/quickstep/src/com/android/launcher3/LauncherAnimationRunner.java
@@ -56,17 +56,22 @@
         return mHandler;
     }
 
-    // Called only in R+ platform
+    // Called only in S+ platform
     @BinderThread
-    public void onAnimationStart(RemoteAnimationTargetCompat[] appTargets,
-            RemoteAnimationTargetCompat[] wallpaperTargets, Runnable runnable) {
+    public void onAnimationStart(
+            int transit,
+            RemoteAnimationTargetCompat[] appTargets,
+            RemoteAnimationTargetCompat[] wallpaperTargets,
+            RemoteAnimationTargetCompat[] nonAppTargets,
+            Runnable runnable) {
         Runnable r = () -> {
             finishExistingAnimation();
             mAnimationResult = new AnimationResult(() -> {
                 UI_HELPER_EXECUTOR.execute(runnable);
                 mAnimationResult = null;
             });
-            onCreateAnimation(appTargets, wallpaperTargets, mAnimationResult);
+            onCreateAnimation(transit, appTargets, wallpaperTargets, nonAppTargets,
+                    mAnimationResult);
         };
         if (mStartAtFrontOfQueue) {
             postAtFrontOfQueueAsynchronously(mHandler, r);
@@ -75,6 +80,14 @@
         }
     }
 
+    // Called only in R platform
+    @BinderThread
+    public void onAnimationStart(RemoteAnimationTargetCompat[] appTargets,
+            RemoteAnimationTargetCompat[] wallpaperTargets, Runnable runnable) {
+        onAnimationStart(0 /* transit */, appTargets, wallpaperTargets,
+                new RemoteAnimationTargetCompat[0], runnable);
+    }
+
     // Called only in Q platform
     @BinderThread
     @Deprecated
@@ -88,8 +101,11 @@
      */
     @UiThread
     public abstract void onCreateAnimation(
+            int transit,
             RemoteAnimationTargetCompat[] appTargets,
-            RemoteAnimationTargetCompat[] wallpaperTargets, AnimationResult result);
+            RemoteAnimationTargetCompat[] wallpaperTargets,
+            RemoteAnimationTargetCompat[] nonAppTargets,
+            AnimationResult result);
 
     @UiThread
     private void finishExistingAnimation() {
diff --git a/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java b/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java
index 876cabc..c4b6961 100644
--- a/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java
+++ b/quickstep/src/com/android/launcher3/QuickstepAppTransitionManagerImpl.java
@@ -866,8 +866,10 @@
         }
 
         @Override
-        public void onCreateAnimation(RemoteAnimationTargetCompat[] appTargets,
+        public void onCreateAnimation(int transit,
+                RemoteAnimationTargetCompat[] appTargets,
                 RemoteAnimationTargetCompat[] wallpaperTargets,
+                RemoteAnimationTargetCompat[] nonAppTargets,
                 LauncherAnimationRunner.AnimationResult result) {
             if (mLauncher.isDestroyed()) {
                 AnimatorSet anim = new AnimatorSet();
@@ -880,7 +882,8 @@
                 // If launcher is not resumed, wait until new async-frame after resume
                 mLauncher.addOnResumeCallback(() ->
                         postAsyncCallback(mHandler, () ->
-                                onCreateAnimation(appTargets, wallpaperTargets, result)));
+                                onCreateAnimation(transit, appTargets, wallpaperTargets,
+                                        nonAppTargets, result)));
                 return;
             }
 
@@ -964,8 +967,10 @@
         }
 
         @Override
-        public void onCreateAnimation(RemoteAnimationTargetCompat[] appTargets,
+        public void onCreateAnimation(int transit,
+                RemoteAnimationTargetCompat[] appTargets,
                 RemoteAnimationTargetCompat[] wallpaperTargets,
+                RemoteAnimationTargetCompat[] nonAppTargets,
                 LauncherAnimationRunner.AnimationResult result) {
             AnimatorSet anim = new AnimatorSet();
 
diff --git a/quickstep/src/com/android/launcher3/WrappedAnimationRunnerImpl.java b/quickstep/src/com/android/launcher3/WrappedAnimationRunnerImpl.java
index da2aee4..03cc28e 100644
--- a/quickstep/src/com/android/launcher3/WrappedAnimationRunnerImpl.java
+++ b/quickstep/src/com/android/launcher3/WrappedAnimationRunnerImpl.java
@@ -26,7 +26,9 @@
  */
 public interface WrappedAnimationRunnerImpl {
     Handler getHandler();
-    void onCreateAnimation(RemoteAnimationTargetCompat[] appTargets,
+    void onCreateAnimation(int transit,
+            RemoteAnimationTargetCompat[] appTargets,
             RemoteAnimationTargetCompat[] wallpaperTargets,
+            RemoteAnimationTargetCompat[] nonAppTargets,
             LauncherAnimationRunner.AnimationResult result);
 }
diff --git a/quickstep/src/com/android/launcher3/WrappedLauncherAnimationRunner.java b/quickstep/src/com/android/launcher3/WrappedLauncherAnimationRunner.java
index 1753b62..1e1631b 100644
--- a/quickstep/src/com/android/launcher3/WrappedLauncherAnimationRunner.java
+++ b/quickstep/src/com/android/launcher3/WrappedLauncherAnimationRunner.java
@@ -46,11 +46,15 @@
     }
 
     @Override
-    public void onCreateAnimation(RemoteAnimationTargetCompat[] appTargets,
-            RemoteAnimationTargetCompat[] wallpaperTargets, AnimationResult result) {
+    public void onCreateAnimation(int transit,
+            RemoteAnimationTargetCompat[] appTargets,
+            RemoteAnimationTargetCompat[] wallpaperTargets,
+            RemoteAnimationTargetCompat[] nonAppTargets,
+            AnimationResult result) {
         R animationRunnerImpl = mImpl.get();
         if (animationRunnerImpl != null) {
-            animationRunnerImpl.onCreateAnimation(appTargets, wallpaperTargets, result);
+            animationRunnerImpl.onCreateAnimation(transit, appTargets, wallpaperTargets,
+                    nonAppTargets, result);
         }
     }
 }
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TwoButtonNavbarTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TwoButtonNavbarTouchController.java
index 6271a44..faf5054 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TwoButtonNavbarTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/TwoButtonNavbarTouchController.java
@@ -31,6 +31,7 @@
 import com.android.launcher3.touch.AbstractStateChangeTouchController;
 import com.android.launcher3.touch.SingleAxisSwipeDetector;
 import com.android.quickstep.SystemUiProxy;
+import com.android.quickstep.util.LayoutUtils;
 import com.android.quickstep.views.AllAppsEduView;
 
 /**
@@ -92,7 +93,8 @@
                     mLauncher.getDeviceProfile().isSeascape() == isDragTowardPositive;
             return draggingFromNav ? OVERVIEW : NORMAL;
         } else {
-            return isDragTowardPositive ^ (fromState == OVERVIEW) ? OVERVIEW : NORMAL;
+            LauncherState startState = mStartState != null ? mStartState : fromState;
+            return isDragTowardPositive ^ (startState == OVERVIEW) ? OVERVIEW : NORMAL;
         }
     }
 
@@ -106,8 +108,8 @@
 
     @Override
     protected float getShiftRange() {
-        return mLauncher.getDeviceProfile().isVerticalBarLayout()
-                ? mLauncher.getDragLayer().getWidth() : super.getShiftRange();
+        // Should be in sync with TestProtocol.REQUEST_HOME_TO_OVERVIEW_SWIPE_HEIGHT
+        return LayoutUtils.getDefaultSwipeHeight(mLauncher, mLauncher.getDeviceProfile());
     }
 
     @Override
@@ -116,7 +118,7 @@
         long maxAccuracy = (long) (2 * range);
         mCurrentAnimation = mLauncher.getStateManager().createAnimationToNewWorkspace(mToState,
                 maxAccuracy, animComponent);
-        return (mLauncher.getDeviceProfile().isSeascape() ? 2 : -2) / range;
+        return (mLauncher.getDeviceProfile().isSeascape() ? 1 : -1) / range;
     }
 
     @Override
@@ -134,5 +136,6 @@
                 AllAppsEduView.show(mLauncher);
             }
         }
+        mStartState = null;
     }
 }
diff --git a/quickstep/src/com/android/quickstep/RecentsActivity.java b/quickstep/src/com/android/quickstep/RecentsActivity.java
index 7beeae2..8aa0842 100644
--- a/quickstep/src/com/android/quickstep/RecentsActivity.java
+++ b/quickstep/src/com/android/quickstep/RecentsActivity.java
@@ -184,8 +184,11 @@
             }
 
             @Override
-            public void onCreateAnimation(RemoteAnimationTargetCompat[] appTargets,
-                    RemoteAnimationTargetCompat[] wallpaperTargets, AnimationResult result) {
+            public void onCreateAnimation(int transit,
+                    RemoteAnimationTargetCompat[] appTargets,
+                    RemoteAnimationTargetCompat[] wallpaperTargets,
+                    RemoteAnimationTargetCompat[] nonAppTargets,
+                    AnimationResult result) {
                 AnimatorSet anim = composeRecentsLaunchAnimator(taskView, appTargets,
                         wallpaperTargets);
                 anim.addListener(resetStateListener());
diff --git a/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java b/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java
index 19c6588..3adb459 100644
--- a/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java
+++ b/quickstep/src/com/android/quickstep/util/RemoteAnimationProvider.java
@@ -43,8 +43,11 @@
             }
 
             @Override
-            public void onCreateAnimation(RemoteAnimationTargetCompat[] appTargets,
-                    RemoteAnimationTargetCompat[] wallpaperTargets, AnimationResult result) {
+            public void onCreateAnimation(int transit,
+                    RemoteAnimationTargetCompat[] appTargets,
+                    RemoteAnimationTargetCompat[] wallpaperTargets,
+                    RemoteAnimationTargetCompat[] nonApps,
+                    AnimationResult result) {
                 result.setAnimation(createWindowAnimation(appTargets, wallpaperTargets), context);
             }
         };
diff --git a/src/com/android/launcher3/touch/AbstractStateChangeTouchController.java b/src/com/android/launcher3/touch/AbstractStateChangeTouchController.java
index 10cd04c..484c76f 100644
--- a/src/com/android/launcher3/touch/AbstractStateChangeTouchController.java
+++ b/src/com/android/launcher3/touch/AbstractStateChangeTouchController.java
@@ -67,8 +67,9 @@
 
     /**
      * Play an atomic recents animation when the progress from NORMAL to OVERVIEW reaches this.
+     * TODO: Remove the atomic animation altogether and just go to OVERVIEW directly (b/175137718).
      */
-    public static final float ATOMIC_OVERVIEW_ANIM_THRESHOLD = 0.5f;
+    public static final float ATOMIC_OVERVIEW_ANIM_THRESHOLD = 1f;
     protected final long ATOMIC_DURATION = getAtomicDuration();
 
     protected final Launcher mLauncher;
@@ -335,9 +336,7 @@
         if (!goingBetweenNormalAndOverview(fromState, toState)) {
             return;
         }
-        float threshold = toState == OVERVIEW ? ATOMIC_OVERVIEW_ANIM_THRESHOLD
-                : 1f - ATOMIC_OVERVIEW_ANIM_THRESHOLD;
-        boolean passedThreshold = progress >= threshold;
+        boolean passedThreshold = progress >= ATOMIC_OVERVIEW_ANIM_THRESHOLD;
         if (passedThreshold != mPassedOverviewAtomicThreshold) {
             LauncherState atomicFromState = passedThreshold ? fromState: toState;
             LauncherState atomicToState = passedThreshold ? toState : fromState;