diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java
index 2cdc0ce..83123b5 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java
@@ -303,7 +303,8 @@
 
     /** Whether a new bubble is animating. */
     public boolean isAnimatingNewBubble() {
-        return mBarView.isAnimatingNewBubble();
+        return mBarView.isAnimatingNewBubble()
+                || (mBubbleBarViewAnimator != null && mBubbleBarViewAnimator.hasAnimatingBubble());
     }
 
     /** The horizontal margin of the bubble bar from the edge of the screen. */
@@ -575,14 +576,14 @@
         }
         boolean persistentTaskbarOrOnHome = mBubbleStashController.isBubblesShowingOnHome()
                 || !mBubbleStashController.isTransientTaskBar();
-        if (persistentTaskbarOrOnHome && !isExpanding && !isExpanded()) {
-            mBubbleBarViewAnimator.animateBubbleBarForCollapsed(bubble);
+        if (persistentTaskbarOrOnHome && !isExpanded()) {
+            mBubbleBarViewAnimator.animateBubbleBarForCollapsed(bubble, isExpanding);
             return;
         }
 
         // only animate the new bubble if we're in an app, have handle view and not auto expanding
-        if (isInApp && !isExpanding && mBubbleStashController.getHasHandleView() && !isExpanded()) {
-            mBubbleBarViewAnimator.animateBubbleInForStashed(bubble);
+        if (isInApp && mBubbleStashController.getHasHandleView() && !isExpanded()) {
+            mBubbleBarViewAnimator.animateBubbleInForStashed(bubble, isExpanding);
         }
     }
 
@@ -626,6 +627,10 @@
      * from SystemUI.
      */
     public void setExpandedFromSysui(boolean isExpanded) {
+        if (isAnimatingNewBubble() && isExpanded) {
+            mBubbleBarViewAnimator.expandedWhileAnimating();
+            return;
+        }
         if (!isExpanded) {
             mBubbleStashController.stashBubbleBar();
         } else {
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleStashedHandleViewController.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleStashedHandleViewController.java
index 52f5a29..8158fe7 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleStashedHandleViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleStashedHandleViewController.java
@@ -245,6 +245,11 @@
         mStashedHandleView.setTranslationY(transY);
     }
 
+    /** Returns the translation of the stashed handle. */
+    public float getTranslationY() {
+        return mStashedHandleView.getTranslationY();
+    }
+
     /**
      * Used by {@link BubbleStashController} to animate the handle when stashing or un stashing.
      */
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimator.kt b/quickstep/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimator.kt
index 0a0cfd0..b745193 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimator.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimator.kt
@@ -43,6 +43,8 @@
     private val bubbleBarBounceDistanceInPx =
         bubbleBarView.resources.getDimensionPixelSize(R.dimen.bubblebar_bounce_distance)
 
+    fun hasAnimatingBubble() = animatingBubble != null
+
     private companion object {
         /** The time to show the flyout. */
         const val FLYOUT_DELAY_MS: Long = 2500
@@ -58,8 +60,33 @@
     private data class AnimatingBubble(
         val bubbleView: BubbleView,
         val showAnimation: Runnable,
-        val hideAnimation: Runnable
-    )
+        val hideAnimation: Runnable,
+        val expand: Boolean,
+        val state: State = State.CREATED
+    ) {
+
+        /**
+         * The state of the animation.
+         *
+         * The animation is initially created but will be scheduled later using the [Scheduler].
+         *
+         * The normal uninterrupted cycle is for the bubble notification to animate in, then be in a
+         * transient state and eventually to animate out.
+         *
+         * However different events, such as touch and external signals, may cause the animation to
+         * end earlier.
+         */
+        enum class State {
+            /** The animation is created but not started yet. */
+            CREATED,
+            /** The bubble notification is animating in. */
+            ANIMATING_IN,
+            /** The bubble notification is now fully showing and waiting to be hidden. */
+            IN,
+            /** The bubble notification is animating out. */
+            ANIMATING_OUT
+        }
+    }
 
     /** An interface for scheduling jobs. */
     interface Scheduler {
@@ -97,15 +124,18 @@
         )
 
     /** Animates a bubble for the state where the bubble bar is stashed. */
-    fun animateBubbleInForStashed(b: BubbleBarBubble) {
+    fun animateBubbleInForStashed(b: BubbleBarBubble, isExpanding: Boolean) {
+        // TODO b/346400677: handle animations for the same bubble interrupting each other
+        if (animatingBubble?.bubbleView?.bubble?.key == b.key) return
         val bubbleView = b.view
         val animator = PhysicsAnimator.getInstance(bubbleView)
         if (animator.isRunning()) animator.cancel()
         // the animation of a new bubble is divided into 2 parts. The first part shows the bubble
         // and the second part hides it after a delay.
         val showAnimation = buildHandleToBubbleBarAnimation()
-        val hideAnimation = buildBubbleBarToHandleAnimation()
-        animatingBubble = AnimatingBubble(bubbleView, showAnimation, hideAnimation)
+        val hideAnimation = if (isExpanding) Runnable {} else buildBubbleBarToHandleAnimation()
+        animatingBubble =
+            AnimatingBubble(bubbleView, showAnimation, hideAnimation, expand = isExpanding)
         scheduler.post(showAnimation)
         scheduler.postDelayed(FLYOUT_DELAY_MS, hideAnimation)
     }
@@ -125,6 +155,7 @@
      *    visible which helps avoiding further updates when we re-enter the second part.
      */
     private fun buildHandleToBubbleBarAnimation() = Runnable {
+        moveToState(AnimatingBubble.State.ANIMATING_IN)
         // prepare the bubble bar for the animation
         bubbleBarView.onAnimatingBubbleStarted()
         bubbleBarView.visibility = VISIBLE
@@ -138,9 +169,12 @@
         // handle. when the handle becomes invisible and we start animating in the bubble bar,
         // the translation y is offset by this value to make the transition from the handle to the
         // bar smooth.
-        val offset: Float = bubbleStashController.getDiffBetweenHandleAndBarCenters()
-        val stashedHandleTranslationY: Float =
+        val offset = bubbleStashController.getDiffBetweenHandleAndBarCenters()
+        val stashedHandleTranslationYForAnimation =
             bubbleStashController.getStashedHandleTranslationForNewBubbleAnimation()
+        val stashedHandleTranslationY =
+            bubbleStashController.getHandleTranslationY() ?: return@Runnable
+        val translationTracker = TranslationTracker(stashedHandleTranslationY)
 
         // this is the total distance that both the stashed handle and the bubble will be traveling
         // at the end of the animation the bubble bar will be positioned in the same place when it
@@ -150,15 +184,14 @@
         animator.setDefaultSpringConfig(springConfig)
         animator.spring(DynamicAnimation.TRANSLATION_Y, totalTranslationY)
         animator.addUpdateListener { handle, values ->
-            val ty: Float =
-                values[DynamicAnimation.TRANSLATION_Y]?.value ?: return@addUpdateListener
+            val ty = values[DynamicAnimation.TRANSLATION_Y]?.value ?: return@addUpdateListener
             when {
-                ty >= stashedHandleTranslationY -> {
+                ty >= stashedHandleTranslationYForAnimation -> {
                     // we're in the first leg of the animation. only animate the handle. the bubble
                     // bar remains hidden during this part of the animation
 
                     // map the path [0, stashedHandleTranslationY] to [0,1]
-                    val fraction = ty / stashedHandleTranslationY
+                    val fraction = ty / stashedHandleTranslationYForAnimation
                     handle.alpha = 1 - fraction
                 }
                 ty >= totalTranslationY -> {
@@ -172,8 +205,8 @@
                     if (bubbleBarView.alpha != 1f) {
                         // map the path [stashedHandleTranslationY, totalTranslationY] to [0, 1]
                         val fraction =
-                            (ty - stashedHandleTranslationY) /
-                                (totalTranslationY - stashedHandleTranslationY)
+                            (ty - stashedHandleTranslationYForAnimation) /
+                                (totalTranslationY - stashedHandleTranslationYForAnimation)
                         bubbleBarView.alpha = fraction
                         bubbleBarView.scaleY =
                             BUBBLE_ANIMATION_INITIAL_SCALE_Y +
@@ -193,18 +226,16 @@
                     bubbleStashController.updateTaskbarTouchRegion()
                 }
             }
+            translationTracker.updateTyAndExpandIfNeeded(ty)
         }
         animator.addEndListener { _, _, _, canceled, _, _, _ ->
             // if the show animation was canceled, also cancel the hide animation. this is typically
             // canceled in this class, but could potentially be canceled elsewhere.
-            if (canceled) {
-                val hideAnimation = animatingBubble?.hideAnimation ?: return@addEndListener
-                scheduler.cancel(hideAnimation)
-                animatingBubble = null
-                bubbleBarView.onAnimatingBubbleCompleted()
-                bubbleBarView.relativePivotY = 1f
+            if (canceled || animatingBubble?.expand == true) {
+                cancelHideAnimation()
                 return@addEndListener
             }
+            moveToState(AnimatingBubble.State.IN)
             // the bubble bar is now fully settled in. update taskbar touch region so it's touchable
             bubbleStashController.updateTaskbarTouchRegion()
         }
@@ -227,7 +258,8 @@
      */
     private fun buildBubbleBarToHandleAnimation() = Runnable {
         if (animatingBubble == null) return@Runnable
-        val offset = bubbleStashController.getStashedHandleTranslationForNewBubbleAnimation()
+        moveToState(AnimatingBubble.State.ANIMATING_OUT)
+        val offset = bubbleStashController.getDiffBetweenHandleAndBarCenters()
         val stashedHandleTranslationY =
             bubbleStashController.getStashedHandleTranslationForNewBubbleAnimation()
         // this is the total distance that both the stashed handle and the bar will be traveling
@@ -281,6 +313,8 @@
 
     /** Animates to the initial state of the bubble bar, when there are no previous bubbles. */
     fun animateToInitialState(b: BubbleBarBubble, isInApp: Boolean, isExpanding: Boolean) {
+        // TODO b/346400677: handle animations for the same bubble interrupting each other
+        if (animatingBubble?.bubbleView?.bubble?.key == b.key) return
         val bubbleView = b.view
         val animator = PhysicsAnimator.getInstance(bubbleView)
         if (animator.isRunning()) animator.cancel()
@@ -300,12 +334,14 @@
                     bubbleStashController.updateTaskbarTouchRegion()
                 }
             }
-        animatingBubble = AnimatingBubble(bubbleView, showAnimation, hideAnimation)
+        animatingBubble =
+            AnimatingBubble(bubbleView, showAnimation, hideAnimation, expand = isExpanding)
         scheduler.post(showAnimation)
         scheduler.postDelayed(FLYOUT_DELAY_MS, hideAnimation)
     }
 
     private fun buildBubbleBarSpringInAnimation() = Runnable {
+        moveToState(AnimatingBubble.State.ANIMATING_IN)
         // prepare the bubble bar for the animation
         bubbleBarView.onAnimatingBubbleStarted()
         bubbleBarView.translationY = bubbleBarView.height.toFloat()
@@ -314,18 +350,31 @@
         bubbleBarView.scaleX = 1f
         bubbleBarView.scaleY = 1f
 
+        val translationTracker = TranslationTracker(bubbleBarView.translationY)
+
         val animator = PhysicsAnimator.getInstance(bubbleBarView)
         animator.setDefaultSpringConfig(springConfig)
         animator.spring(DynamicAnimation.TRANSLATION_Y, bubbleStashController.bubbleBarTranslationY)
-        animator.addUpdateListener { _, _ -> bubbleStashController.updateTaskbarTouchRegion() }
+        animator.addUpdateListener { _, values ->
+            val ty = values[DynamicAnimation.TRANSLATION_Y]?.value ?: return@addUpdateListener
+            translationTracker.updateTyAndExpandIfNeeded(ty)
+            bubbleStashController.updateTaskbarTouchRegion()
+        }
         animator.addEndListener { _, _, _, _, _, _, _ ->
+            if (animatingBubble?.expand == true) {
+                cancelHideAnimation()
+            } else {
+                moveToState(AnimatingBubble.State.IN)
+            }
             // the bubble bar is now fully settled in. update taskbar touch region so it's touchable
             bubbleStashController.updateTaskbarTouchRegion()
         }
         animator.start()
     }
 
-    fun animateBubbleBarForCollapsed(b: BubbleBarBubble) {
+    fun animateBubbleBarForCollapsed(b: BubbleBarBubble, isExpanding: Boolean) {
+        // TODO b/346400677: handle animations for the same bubble interrupting each other
+        if (animatingBubble?.bubbleView?.bubble?.key == b.key) return
         val bubbleView = b.view
         val animator = PhysicsAnimator.getInstance(bubbleView)
         if (animator.isRunning()) animator.cancel()
@@ -336,7 +385,8 @@
             bubbleBarView.onAnimatingBubbleCompleted()
             bubbleStashController.updateTaskbarTouchRegion()
         }
-        animatingBubble = AnimatingBubble(bubbleView, showAnimation, hideAnimation)
+        animatingBubble =
+            AnimatingBubble(bubbleView, showAnimation, hideAnimation, expand = isExpanding)
         scheduler.post(showAnimation)
         scheduler.postDelayed(FLYOUT_DELAY_MS, hideAnimation)
     }
@@ -347,17 +397,29 @@
      * the bubble bar moves back to its initial position with a spring animation.
      */
     private fun buildBubbleBarBounceAnimation() = Runnable {
+        moveToState(AnimatingBubble.State.ANIMATING_IN)
         bubbleBarView.onAnimatingBubbleStarted()
         val ty = bubbleStashController.bubbleBarTranslationY
 
         val springBackAnimation = PhysicsAnimator.getInstance(bubbleBarView)
         springBackAnimation.setDefaultSpringConfig(springConfig)
         springBackAnimation.spring(DynamicAnimation.TRANSLATION_Y, ty)
+        springBackAnimation.addEndListener { _, _, _, _, _, _, _ ->
+            if (animatingBubble?.expand == true) {
+                bubbleBarView.isExpanded = true
+                cancelHideAnimation()
+            } else {
+                moveToState(AnimatingBubble.State.IN)
+            }
+        }
 
         // animate the bubble bar up and start the spring back down animation when it ends.
         ObjectAnimator.ofFloat(bubbleBarView, View.TRANSLATION_Y, ty - bubbleBarBounceDistanceInPx)
             .withDuration(BUBBLE_BAR_BOUNCE_ANIMATION_DURATION_MS)
-            .withEndAction { springBackAnimation.start() }
+            .withEndAction {
+                if (animatingBubble?.expand == true) bubbleBarView.isExpanded = true
+                springBackAnimation.start()
+            }
             .start()
     }
 
@@ -386,6 +448,25 @@
         )
     }
 
+    fun expandedWhileAnimating() {
+        val animatingBubble = animatingBubble ?: return
+        this.animatingBubble = animatingBubble.copy(expand = true)
+        // if we're fully in and waiting to hide, cancel the hide animation and clean up
+        if (animatingBubble.state == AnimatingBubble.State.IN) {
+            bubbleBarView.isExpanded = true
+            cancelHideAnimation()
+        }
+    }
+
+    private fun cancelHideAnimation() {
+        val hideAnimation = animatingBubble?.hideAnimation ?: return
+        scheduler.cancel(hideAnimation)
+        animatingBubble = null
+        bubbleBarView.onAnimatingBubbleCompleted()
+        bubbleBarView.relativePivotY = 1f
+        bubbleStashController.showBubbleBarImmediate()
+    }
+
     private fun <T> PhysicsAnimator<T>?.cancelIfRunning() {
         if (this?.isRunning() == true) cancel()
     }
@@ -405,4 +486,37 @@
         )
         return this
     }
+
+    private fun moveToState(state: AnimatingBubble.State) {
+        val animatingBubble = this.animatingBubble ?: return
+        this.animatingBubble = animatingBubble.copy(state = state)
+    }
+
+    /**
+     * Tracks the translation Y of the bubble bar during the animation. When the bubble bar expands
+     * as part of the animation, the expansion should start after the bubble bar reaches the peak
+     * position.
+     */
+    private inner class TranslationTracker(initialTy: Float) {
+        private var previousTy = initialTy
+        private var startedExpanding = false
+        private var reachedPeak = false
+
+        fun updateTyAndExpandIfNeeded(ty: Float) {
+            if (!reachedPeak) {
+                // the bubble bar is positioned at the bottom of the screen and moves up using
+                // negative ty values. the peak is reached the first time we see a value that is
+                // greater than the previous.
+                if (ty > previousTy) {
+                    reachedPeak = true
+                }
+            }
+            val expand = animatingBubble?.expand ?: false
+            if (reachedPeak && expand && !startedExpanding) {
+                bubbleBarView.isExpanded = true
+                startedExpanding = true
+            }
+            previousTy = ty
+        }
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/stashing/BubbleStashController.kt b/quickstep/src/com/android/launcher3/taskbar/bubbles/stashing/BubbleStashController.kt
index 0f43744..48eb7de 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/stashing/BubbleStashController.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/stashing/BubbleStashController.kt
@@ -143,6 +143,9 @@
     /** Set the translation Y for the stashed handle. */
     fun setHandleTranslationY(translationY: Float)
 
+    /** Returns the translation of the handle. */
+    fun getHandleTranslationY(): Float?
+
     /**
      * Returns bubble bar Y position according to [isBubblesShowingOnHome] and
      * [isBubblesShowingOnOverview] values. Default implementation only analyse
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/stashing/PersistentBubbleStashController.kt b/quickstep/src/com/android/launcher3/taskbar/bubbles/stashing/PersistentBubbleStashController.kt
index 62fe221..1b65019 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/stashing/PersistentBubbleStashController.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/stashing/PersistentBubbleStashController.kt
@@ -198,6 +198,8 @@
         // no op since does not have a handle view
     }
 
+    override fun getHandleTranslationY(): Float? = null
+
     private fun updateExpandedState(expand: Boolean) {
         if (bubbleBarViewController.isHiddenForNoBubbles) {
             // If there are no bubbles the bar is invisible, nothing to do here.
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/stashing/TransientBubbleStashController.kt b/quickstep/src/com/android/launcher3/taskbar/bubbles/stashing/TransientBubbleStashController.kt
index 23e009b..1a4b982 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/stashing/TransientBubbleStashController.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/stashing/TransientBubbleStashController.kt
@@ -242,6 +242,8 @@
         bubbleStashedHandleViewController?.setTranslationYForSwipe(translationY)
     }
 
+    override fun getHandleTranslationY(): Float? = bubbleStashedHandleViewController?.translationY
+
     private fun getStashTranslation(): Float {
         return (bubbleBarViewController.bubbleBarCollapsedHeight - stashedHeight) / 2f
     }
diff --git a/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimatorTest.kt b/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimatorTest.kt
index 619ce1c..21eb3e0 100644
--- a/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimatorTest.kt
+++ b/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimatorTest.kt
@@ -84,7 +84,7 @@
             BubbleBarViewAnimator(bubbleBarView, bubbleStashController, animatorScheduler)
 
         InstrumentationRegistry.getInstrumentation().runOnMainSync {
-            animator.animateBubbleInForStashed(bubble)
+            animator.animateBubbleInForStashed(bubble, isExpanding = false)
         }
 
         // let the animation start and wait for it to complete
@@ -128,7 +128,7 @@
             BubbleBarViewAnimator(bubbleBarView, bubbleStashController, animatorScheduler)
 
         InstrumentationRegistry.getInstrumentation().runOnMainSync {
-            animator.animateBubbleInForStashed(bubble)
+            animator.animateBubbleInForStashed(bubble, isExpanding = false)
         }
 
         // let the animation start and wait for it to complete
@@ -171,7 +171,7 @@
             BubbleBarViewAnimator(bubbleBarView, bubbleStashController, animatorScheduler)
 
         InstrumentationRegistry.getInstrumentation().runOnMainSync {
-            animator.animateBubbleInForStashed(bubble)
+            animator.animateBubbleInForStashed(bubble, isExpanding = false)
         }
 
         // wait for the animation to start
@@ -211,7 +211,7 @@
             BubbleBarViewAnimator(bubbleBarView, bubbleStashController, animatorScheduler)
 
         InstrumentationRegistry.getInstrumentation().runOnMainSync {
-            animator.animateBubbleInForStashed(bubble)
+            animator.animateBubbleInForStashed(bubble, isExpanding = false)
         }
 
         // let the animation start and wait for it to complete
@@ -252,7 +252,7 @@
             BubbleBarViewAnimator(bubbleBarView, bubbleStashController, animatorScheduler)
 
         InstrumentationRegistry.getInstrumentation().runOnMainSync {
-            animator.animateBubbleInForStashed(bubble)
+            animator.animateBubbleInForStashed(bubble, isExpanding = false)
         }
 
         // wait for the animation to start
@@ -270,6 +270,123 @@
     }
 
     @Test
+    fun animateBubbleInForStashed_autoExpanding() {
+        setUpBubbleBar()
+        setUpBubbleStashController()
+
+        val handle = View(context)
+        val handleAnimator = PhysicsAnimator.getInstance(handle)
+        whenever(bubbleStashController.getStashedHandlePhysicsAnimator()).thenReturn(handleAnimator)
+
+        val animator =
+            BubbleBarViewAnimator(bubbleBarView, bubbleStashController, animatorScheduler)
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animator.animateBubbleInForStashed(bubble, isExpanding = true)
+        }
+
+        // wait for the animation to start
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {}
+        PhysicsAnimatorTestUtils.blockUntilAnimationsEnd(DynamicAnimation.TRANSLATION_Y)
+
+        assertThat(handle.alpha).isEqualTo(0)
+        assertThat(handle.translationY)
+            .isEqualTo(DIFF_BETWEEN_HANDLE_AND_BAR_CENTERS + BAR_TRANSLATION_Y_FOR_TASKBAR)
+        assertThat(bubbleBarView.visibility).isEqualTo(VISIBLE)
+        assertThat(bubbleBarView.scaleX).isEqualTo(1)
+        assertThat(bubbleBarView.scaleY).isEqualTo(1)
+        assertThat(bubbleBarView.translationY).isEqualTo(BAR_TRANSLATION_Y_FOR_TASKBAR)
+        assertThat(bubbleBarView.isAnimatingNewBubble).isFalse()
+        assertThat(bubbleBarView.isExpanded).isTrue()
+
+        // verify there is no hide animation
+        assertThat(animatorScheduler.delayedBlock).isNull()
+
+        verify(bubbleStashController).showBubbleBarImmediate()
+    }
+
+    @Test
+    fun animateBubbleInForStashed_expandedWhileAnimatingIn() {
+        setUpBubbleBar()
+        setUpBubbleStashController()
+
+        val handle = View(context)
+        val handleAnimator = PhysicsAnimator.getInstance(handle)
+        whenever(bubbleStashController.getStashedHandlePhysicsAnimator()).thenReturn(handleAnimator)
+
+        val animator =
+            BubbleBarViewAnimator(bubbleBarView, bubbleStashController, animatorScheduler)
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animator.animateBubbleInForStashed(bubble, isExpanding = false)
+        }
+
+        // wait for the animation to start
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {}
+        PhysicsAnimatorTestUtils.blockUntilFirstAnimationFrameWhereTrue(handleAnimator) { true }
+
+        handleAnimator.assertIsRunning()
+        assertThat(bubbleBarView.isAnimatingNewBubble).isTrue()
+        // verify the hide bubble animation is pending
+        assertThat(animatorScheduler.delayedBlock).isNotNull()
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animator.expandedWhileAnimating()
+        }
+
+        // let the animation finish
+        PhysicsAnimatorTestUtils.blockUntilAnimationsEnd(DynamicAnimation.TRANSLATION_Y)
+
+        // verify that the hide animation was canceled
+        assertThat(animatorScheduler.delayedBlock).isNull()
+
+        assertThat(handle.alpha).isEqualTo(0)
+        assertThat(handle.translationY)
+            .isEqualTo(DIFF_BETWEEN_HANDLE_AND_BAR_CENTERS + BAR_TRANSLATION_Y_FOR_TASKBAR)
+        verifyBubbleBarIsExpandedWithTranslation(BAR_TRANSLATION_Y_FOR_TASKBAR)
+        assertThat(bubbleBarView.isAnimatingNewBubble).isFalse()
+    }
+
+    @Test
+    fun animateBubbleInForStashed_expandedWhileFullyIn() {
+        setUpBubbleBar()
+        setUpBubbleStashController()
+
+        val handle = View(context)
+        val handleAnimator = PhysicsAnimator.getInstance(handle)
+        whenever(bubbleStashController.getStashedHandlePhysicsAnimator()).thenReturn(handleAnimator)
+
+        val animator =
+            BubbleBarViewAnimator(bubbleBarView, bubbleStashController, animatorScheduler)
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animator.animateBubbleInForStashed(bubble, isExpanding = false)
+        }
+
+        // wait for the animation to start
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {}
+        // wait for the animation to end
+        PhysicsAnimatorTestUtils.blockUntilAnimationsEnd(DynamicAnimation.TRANSLATION_Y)
+
+        assertThat(bubbleBarView.isAnimatingNewBubble).isTrue()
+        // verify the hide bubble animation is pending
+        assertThat(animatorScheduler.delayedBlock).isNotNull()
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animator.expandedWhileAnimating()
+        }
+
+        // verify that the hide animation was canceled
+        assertThat(animatorScheduler.delayedBlock).isNull()
+
+        assertThat(handle.alpha).isEqualTo(0)
+        assertThat(handle.translationY)
+            .isEqualTo(DIFF_BETWEEN_HANDLE_AND_BAR_CENTERS + BAR_TRANSLATION_Y_FOR_TASKBAR)
+        verifyBubbleBarIsExpandedWithTranslation(BAR_TRANSLATION_Y_FOR_TASKBAR)
+        assertThat(bubbleBarView.isAnimatingNewBubble).isFalse()
+    }
+
+    @Test
     fun animateToInitialState_inApp() {
         setUpBubbleBar()
         setUpBubbleStashController()
@@ -336,17 +453,11 @@
         PhysicsAnimatorTestUtils.blockUntilAnimationsEnd(DynamicAnimation.TRANSLATION_Y)
 
         barAnimator.assertIsNotRunning()
-        assertThat(bubbleBarView.isAnimatingNewBubble).isTrue()
-        assertThat(bubbleBarView.alpha).isEqualTo(1)
-        assertThat(bubbleBarView.translationY).isEqualTo(BAR_TRANSLATION_Y_FOR_TASKBAR)
-
-        assertThat(animatorScheduler.delayedBlock).isNotNull()
-        InstrumentationRegistry.getInstrumentation().runOnMainSync(animatorScheduler.delayedBlock!!)
-
         assertThat(bubbleBarView.isAnimatingNewBubble).isFalse()
         assertThat(bubbleBarView.alpha).isEqualTo(1)
         assertThat(bubbleBarView.translationY).isEqualTo(BAR_TRANSLATION_Y_FOR_TASKBAR)
 
+        assertThat(animatorScheduler.delayedBlock).isNull()
         verify(bubbleStashController).showBubbleBarImmediate()
     }
 
@@ -385,6 +496,79 @@
     }
 
     @Test
+    fun animateToInitialState_expandedWhileAnimatingIn() {
+        setUpBubbleBar()
+        setUpBubbleStashController()
+        whenever(bubbleStashController.bubbleBarTranslationY)
+            .thenReturn(BAR_TRANSLATION_Y_FOR_HOTSEAT)
+
+        val animator =
+            BubbleBarViewAnimator(bubbleBarView, bubbleStashController, animatorScheduler)
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animator.animateToInitialState(bubble, isInApp = false, isExpanding = false)
+        }
+
+        val bubbleBarAnimator = PhysicsAnimator.getInstance(bubbleBarView)
+
+        // wait for the animation to start
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {}
+        PhysicsAnimatorTestUtils.blockUntilFirstAnimationFrameWhereTrue(bubbleBarAnimator) { true }
+
+        bubbleBarAnimator.assertIsRunning()
+        assertThat(bubbleBarView.isAnimatingNewBubble).isTrue()
+        // verify the hide bubble animation is pending
+        assertThat(animatorScheduler.delayedBlock).isNotNull()
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animator.expandedWhileAnimating()
+        }
+
+        // let the animation finish
+        PhysicsAnimatorTestUtils.blockUntilAnimationsEnd(DynamicAnimation.TRANSLATION_Y)
+
+        // verify that the hide animation was canceled
+        assertThat(animatorScheduler.delayedBlock).isNull()
+
+        verifyBubbleBarIsExpandedWithTranslation(BAR_TRANSLATION_Y_FOR_HOTSEAT)
+        assertThat(bubbleBarView.isAnimatingNewBubble).isFalse()
+        verify(bubbleStashController).showBubbleBarImmediate()
+    }
+
+    @Test
+    fun animateToInitialState_expandedWhileFullyIn() {
+        setUpBubbleBar()
+        setUpBubbleStashController()
+        whenever(bubbleStashController.bubbleBarTranslationY)
+            .thenReturn(BAR_TRANSLATION_Y_FOR_HOTSEAT)
+
+        val animator =
+            BubbleBarViewAnimator(bubbleBarView, bubbleStashController, animatorScheduler)
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animator.animateToInitialState(bubble, isInApp = false, isExpanding = false)
+        }
+
+        // wait for the animation to start
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {}
+        PhysicsAnimatorTestUtils.blockUntilAnimationsEnd(DynamicAnimation.TRANSLATION_Y)
+
+        assertThat(bubbleBarView.isAnimatingNewBubble).isTrue()
+        // verify the hide bubble animation is pending
+        assertThat(animatorScheduler.delayedBlock).isNotNull()
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animator.expandedWhileAnimating()
+        }
+
+        // verify that the hide animation was canceled
+        assertThat(animatorScheduler.delayedBlock).isNull()
+
+        verifyBubbleBarIsExpandedWithTranslation(BAR_TRANSLATION_Y_FOR_HOTSEAT)
+        assertThat(bubbleBarView.isAnimatingNewBubble).isFalse()
+    }
+
+    @Test
     fun animateBubbleBarForCollapsed() {
         setUpBubbleBar()
         setUpBubbleStashController()
@@ -397,7 +581,7 @@
             BubbleBarViewAnimator(bubbleBarView, bubbleStashController, animatorScheduler)
 
         InstrumentationRegistry.getInstrumentation().runOnMainSync {
-            animator.animateBubbleBarForCollapsed(bubble)
+            animator.animateBubbleBarForCollapsed(bubble, isExpanding = false)
         }
 
         InstrumentationRegistry.getInstrumentation().runOnMainSync {}
@@ -424,6 +608,142 @@
         verify(bubbleStashController).showBubbleBarImmediate()
     }
 
+    @Test
+    fun animateBubbleBarForCollapsed_autoExpanding() {
+        setUpBubbleBar()
+        setUpBubbleStashController()
+        whenever(bubbleStashController.bubbleBarTranslationY)
+            .thenReturn(BAR_TRANSLATION_Y_FOR_HOTSEAT)
+
+        val barAnimator = PhysicsAnimator.getInstance(bubbleBarView)
+
+        val animator =
+            BubbleBarViewAnimator(bubbleBarView, bubbleStashController, animatorScheduler)
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animator.animateBubbleBarForCollapsed(bubble, isExpanding = true)
+        }
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {}
+        // verify we started animating
+        assertThat(bubbleBarView.isAnimatingNewBubble).isTrue()
+
+        // advance the animation handler by the duration of the initial lift
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animatorTestRule.advanceTimeBy(250)
+        }
+
+        // the lift animation is complete; the spring back animation should start now
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {}
+        barAnimator.assertIsRunning()
+        PhysicsAnimatorTestUtils.blockUntilAnimationsEnd(DynamicAnimation.TRANSLATION_Y)
+
+        // verify there is no hide animation
+        assertThat(animatorScheduler.delayedBlock).isNull()
+
+        assertThat(bubbleBarView.isAnimatingNewBubble).isFalse()
+        assertThat(bubbleBarView.translationY).isEqualTo(BAR_TRANSLATION_Y_FOR_HOTSEAT)
+        assertThat(bubbleBarView.isExpanded).isTrue()
+        verify(bubbleStashController).showBubbleBarImmediate()
+    }
+
+    @Test
+    fun animateBubbleBarForCollapsed_expandingWhileAnimatingIn() {
+        setUpBubbleBar()
+        setUpBubbleStashController()
+        whenever(bubbleStashController.bubbleBarTranslationY)
+            .thenReturn(BAR_TRANSLATION_Y_FOR_HOTSEAT)
+
+        val barAnimator = PhysicsAnimator.getInstance(bubbleBarView)
+
+        val animator =
+            BubbleBarViewAnimator(bubbleBarView, bubbleStashController, animatorScheduler)
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animator.animateBubbleBarForCollapsed(bubble, isExpanding = false)
+        }
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {}
+        // verify we started animating
+        assertThat(bubbleBarView.isAnimatingNewBubble).isTrue()
+
+        // advance the animation handler by the duration of the initial lift
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animatorTestRule.advanceTimeBy(250)
+        }
+
+        // the lift animation is complete; the spring back animation should start now
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {}
+        barAnimator.assertIsRunning()
+        PhysicsAnimatorTestUtils.blockUntilFirstAnimationFrameWhereTrue(barAnimator) { true }
+
+        // verify there is a pending hide animation
+        assertThat(animatorScheduler.delayedBlock).isNotNull()
+        assertThat(bubbleBarView.isAnimatingNewBubble).isTrue()
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animator.expandedWhileAnimating()
+        }
+
+        // let the animation finish
+        PhysicsAnimatorTestUtils.blockUntilAnimationsEnd(DynamicAnimation.TRANSLATION_Y)
+
+        // verify that the hide animation was canceled
+        assertThat(animatorScheduler.delayedBlock).isNull()
+
+        assertThat(bubbleBarView.isAnimatingNewBubble).isFalse()
+        assertThat(bubbleBarView.translationY).isEqualTo(BAR_TRANSLATION_Y_FOR_HOTSEAT)
+        assertThat(bubbleBarView.isExpanded).isTrue()
+        verify(bubbleStashController).showBubbleBarImmediate()
+    }
+
+    @Test
+    fun animateBubbleBarForCollapsed_expandingWhileFullyIn() {
+        setUpBubbleBar()
+        setUpBubbleStashController()
+        whenever(bubbleStashController.bubbleBarTranslationY)
+            .thenReturn(BAR_TRANSLATION_Y_FOR_HOTSEAT)
+
+        val barAnimator = PhysicsAnimator.getInstance(bubbleBarView)
+
+        val animator =
+            BubbleBarViewAnimator(bubbleBarView, bubbleStashController, animatorScheduler)
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animator.animateBubbleBarForCollapsed(bubble, isExpanding = false)
+        }
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {}
+        // verify we started animating
+        assertThat(bubbleBarView.isAnimatingNewBubble).isTrue()
+
+        // advance the animation handler by the duration of the initial lift
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animatorTestRule.advanceTimeBy(250)
+        }
+
+        // the lift animation is complete; the spring back animation should start now
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {}
+        barAnimator.assertIsRunning()
+        PhysicsAnimatorTestUtils.blockUntilAnimationsEnd(DynamicAnimation.TRANSLATION_Y)
+
+        // verify there is a pending hide animation
+        assertThat(animatorScheduler.delayedBlock).isNotNull()
+        assertThat(bubbleBarView.isAnimatingNewBubble).isTrue()
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            animator.expandedWhileAnimating()
+        }
+
+        // verify that the hide animation was canceled
+        assertThat(animatorScheduler.delayedBlock).isNull()
+
+        assertThat(bubbleBarView.isAnimatingNewBubble).isFalse()
+        assertThat(bubbleBarView.translationY).isEqualTo(BAR_TRANSLATION_Y_FOR_HOTSEAT)
+        assertThat(bubbleBarView.isExpanded).isTrue()
+        verify(bubbleStashController).showBubbleBarImmediate()
+    }
+
     private fun setUpBubbleBar() {
         bubbleBarView = BubbleBarView(context)
         InstrumentationRegistry.getInstrumentation().runOnMainSync {
@@ -459,6 +779,14 @@
             .thenReturn(BAR_TRANSLATION_Y_FOR_TASKBAR)
     }
 
+    private fun verifyBubbleBarIsExpandedWithTranslation(ty: Float) {
+        assertThat(bubbleBarView.visibility).isEqualTo(VISIBLE)
+        assertThat(bubbleBarView.scaleX).isEqualTo(1)
+        assertThat(bubbleBarView.scaleY).isEqualTo(1)
+        assertThat(bubbleBarView.translationY).isEqualTo(ty)
+        assertThat(bubbleBarView.isExpanded).isTrue()
+    }
+
     private fun <T> PhysicsAnimator<T>.assertIsRunning() {
         InstrumentationRegistry.getInstrumentation().runOnMainSync {
             assertThat(isRunning()).isTrue()