diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/back/BackAnimationController.java b/libs/WindowManager/Shell/src/com/android/wm/shell/back/BackAnimationController.java
index 47d3a5c520745..dc27ceb7f51cb 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/back/BackAnimationController.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/back/BackAnimationController.java
@@ -20,6 +20,9 @@ import static com.android.wm.shell.common.ExecutorUtils.executeRemoteCallWithTas
 import static com.android.wm.shell.protolog.ShellProtoLogGroup.WM_SHELL_BACK_PREVIEW;
 import static com.android.wm.shell.sysui.ShellSharedConstants.KEY_EXTRA_SHELL_BACK_ANIMATION;
 
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.ValueAnimator;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.app.ActivityTaskManager;
@@ -37,7 +40,9 @@ import android.os.SystemClock;
 import android.os.SystemProperties;
 import android.os.UserHandle;
 import android.provider.Settings.Global;
+import android.util.DisplayMetrics;
 import android.util.Log;
+import android.util.MathUtils;
 import android.util.SparseArray;
 import android.view.IRemoteAnimationRunner;
 import android.view.InputDevice;
@@ -56,6 +61,7 @@ import android.window.IOnBackInvokedCallback;
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.protolog.common.ProtoLog;
 import com.android.internal.view.AppearanceRegion;
+import com.android.wm.shell.animation.FlingAnimationUtils;
 import com.android.wm.shell.common.ExternalInterfaceBinder;
 import com.android.wm.shell.common.RemoteCallable;
 import com.android.wm.shell.common.ShellExecutor;
@@ -80,6 +86,17 @@ public class BackAnimationController implements RemoteCallable<BackAnimationCont
     public static boolean IS_U_ANIMATION_ENABLED =
             SystemProperties.getInt("persist.wm.debug.predictive_back_anim",
                     SETTING_VALUE_ON) == SETTING_VALUE_ON;
+
+    public static final float FLING_MAX_LENGTH_SECONDS = 0.1f;     // 100ms
+    public static final float FLING_SPEED_UP_FACTOR = 0.6f;
+
+    /**
+     * The maximum additional progress in case of fling gesture.
+     * The end animation starts after the user lifts the finger from the screen, we continue to
+     * fire {@link BackEvent}s until the velocity reaches 0.
+     */
+    private static final float MAX_FLING_PROGRESS = 0.3f; /* 30% of the screen */
+
     /** Predictive back animation developer option */
     private final AtomicBoolean mEnableAnimations = new AtomicBoolean(false);
     /**
@@ -96,6 +113,7 @@ public class BackAnimationController implements RemoteCallable<BackAnimationCont
     private boolean mShouldStartOnNextMoveEvent = false;
     /** @see #setTriggerBack(boolean) */
     private boolean mTriggerBack;
+    private FlingAnimationUtils mFlingAnimationUtils;
 
     @Nullable
     private BackNavigationInfo mBackNavigationInfo;
@@ -174,6 +192,11 @@ public class BackAnimationController implements RemoteCallable<BackAnimationCont
         mBgHandler = bgHandler;
         shellInit.addInitCallback(this::onInit, this);
         mAnimationBackground = backAnimationBackground;
+        DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics();
+        mFlingAnimationUtils = new FlingAnimationUtils.Builder(displayMetrics)
+                .setMaxLengthSeconds(FLING_MAX_LENGTH_SECONDS)
+                .setSpeedUpFactor(FLING_SPEED_UP_FACTOR)
+                .build();
     }
 
     @VisibleForTesting
@@ -465,6 +488,78 @@ public class BackAnimationController implements RemoteCallable<BackAnimationCont
         }
     }
 
+
+    /**
+     * Allows us to manage the fling gesture, it smoothly animates the current progress value to
+     * the final position, calculated based on the current velocity.
+     *
+     * @param callback the callback to be invoked when the animation ends.
+     */
+    private void dispatchOrAnimateOnBackInvoked(IOnBackInvokedCallback callback) {
+        if (callback == null) {
+            return;
+        }
+
+        boolean animationStarted = false;
+
+        if (mBackNavigationInfo != null && mBackNavigationInfo.isAnimationCallback()) {
+
+            final BackMotionEvent backMotionEvent = mTouchTracker.createProgressEvent();
+            if (backMotionEvent != null) {
+                // Constraints - absolute values
+                float minVelocity = mFlingAnimationUtils.getMinVelocityPxPerSecond();
+                float maxVelocity = mFlingAnimationUtils.getHighVelocityPxPerSecond();
+                float maxX = mTouchTracker.getMaxX(); // px
+                float maxFlingDistance = maxX * MAX_FLING_PROGRESS; // px
+
+                // Current state
+                float currentX = backMotionEvent.getTouchX();
+                float velocity = MathUtils.constrain(backMotionEvent.getVelocityX(),
+                        -maxVelocity, maxVelocity);
+
+                // Target state
+                float animationFaction = velocity / maxVelocity; // value between -1 and 1
+                float flingDistance = animationFaction * maxFlingDistance; // px
+                float endX = MathUtils.constrain(currentX + flingDistance, 0f, maxX);
+
+                if (!Float.isNaN(endX)
+                        && currentX != endX
+                        && Math.abs(velocity) >= minVelocity) {
+                    ValueAnimator animator = ValueAnimator.ofFloat(currentX, endX);
+
+                    mFlingAnimationUtils.apply(
+                            /* animator = */ animator,
+                            /* currValue = */ currentX,
+                            /* endValue = */ endX,
+                            /* velocity = */ velocity,
+                            /* maxDistance = */ maxFlingDistance
+                    );
+
+                    animator.addUpdateListener(animation -> {
+                        Float animatedValue = (Float) animation.getAnimatedValue();
+                        float progress = mTouchTracker.getProgress(animatedValue);
+                        final BackMotionEvent backEvent = mTouchTracker
+                                .createProgressEvent(progress);
+                        dispatchOnBackProgressed(mActiveCallback, backEvent);
+                    });
+
+                    animator.addListener(new AnimatorListenerAdapter() {
+                        @Override
+                        public void onAnimationEnd(Animator animation) {
+                            dispatchOnBackInvoked(callback);
+                        }
+                    });
+                    animator.start();
+                    animationStarted = true;
+                }
+            }
+        }
+
+        if (!animationStarted) {
+            dispatchOnBackInvoked(callback);
+        }
+    }
+
     private void dispatchOnBackInvoked(IOnBackInvokedCallback callback) {
         if (callback == null) {
             return;
@@ -530,7 +625,7 @@ public class BackAnimationController implements RemoteCallable<BackAnimationCont
         if (mBackNavigationInfo != null) {
             final IOnBackInvokedCallback callback = mBackNavigationInfo.getOnBackInvokedCallback();
             if (mTriggerBack) {
-                dispatchOnBackInvoked(callback);
+                dispatchOrAnimateOnBackInvoked(callback);
             } else {
                 dispatchOnBackCancelled(callback);
             }
@@ -605,7 +700,7 @@ public class BackAnimationController implements RemoteCallable<BackAnimationCont
 
         // The next callback should be {@link #onBackAnimationFinished}.
         if (mTriggerBack) {
-            dispatchOnBackInvoked(mActiveCallback);
+            dispatchOrAnimateOnBackInvoked(mActiveCallback);
         } else {
             dispatchOnBackCancelled(mActiveCallback);
         }
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/back/TouchTracker.java b/libs/WindowManager/Shell/src/com/android/wm/shell/back/TouchTracker.java
index 904574b085628..7a00f5b9bab4f 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/back/TouchTracker.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/back/TouchTracker.java
@@ -16,7 +16,10 @@
 
 package com.android.wm.shell.back;
 
+import android.annotation.FloatRange;
 import android.os.SystemProperties;
+import android.util.MathUtils;
+import android.view.MotionEvent;
 import android.view.RemoteAnimationTarget;
 import android.window.BackEvent;
 import android.window.BackMotionEvent;
@@ -99,28 +102,42 @@ class TouchTracker {
     }
 
     BackMotionEvent createProgressEvent() {
-        float progressThreshold = PROGRESS_THRESHOLD >= 0
-                ? PROGRESS_THRESHOLD : mProgressThreshold;
-        progressThreshold = progressThreshold == 0 ? 1 : progressThreshold;
         float progress = 0;
         // Progress is always 0 when back is cancelled and not restarted.
         if (!mCancelled) {
-            // If back is committed, progress is the distance between the last and first touch
-            // point, divided by the max drag distance. Otherwise, it's the distance between
-            // the last touch point and the starting threshold, divided by max drag distance.
-            // The starting threshold is initially the first touch location, and updated to
-            // the location everytime back is restarted after being cancelled.
-            float startX = mTriggerBack ? mInitTouchX : mStartThresholdX;
-            float deltaX = Math.max(
-                    mSwipeEdge == BackEvent.EDGE_LEFT
-                            ? mLatestTouchX - startX
-                            : startX - mLatestTouchX,
-                    0);
-            progress = Math.min(Math.max(deltaX / progressThreshold, 0), 1);
+            progress = getProgress(mLatestTouchX);
         }
         return createProgressEvent(progress);
     }
 
+    /**
+     * Progress value computed from the touch position.
+     *
+     * @param touchX the X touch position of the {@link MotionEvent}.
+     * @return progress value
+     */
+    @FloatRange(from = 0.0, to = 1.0)
+    float getProgress(float touchX) {
+        // If back is committed, progress is the distance between the last and first touch
+        // point, divided by the max drag distance. Otherwise, it's the distance between
+        // the last touch point and the starting threshold, divided by max drag distance.
+        // The starting threshold is initially the first touch location, and updated to
+        // the location everytime back is restarted after being cancelled.
+        float startX = mTriggerBack ? mInitTouchX : mStartThresholdX;
+        float deltaX = Math.abs(startX - touchX);
+        float maxX = getMaxX();
+        maxX = maxX == 0 ? 1 : maxX;
+        return MathUtils.constrain(deltaX / maxX, 0, 1);
+    }
+
+    /**
+     * Maximum X value (in pixels).
+     * Progress is considered to be completed (1f) when this limit is exceeded.
+     */
+    float getMaxX() {
+        return PROGRESS_THRESHOLD >= 0 ? PROGRESS_THRESHOLD : mProgressThreshold;
+    }
+
     BackMotionEvent createProgressEvent(float progress) {
         return new BackMotionEvent(
                 /* touchX = */ mLatestTouchX,
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/back/BackAnimationControllerTest.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/back/BackAnimationControllerTest.java
index d95c7a488ea1c..3d8bd3854a453 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/back/BackAnimationControllerTest.java
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/back/BackAnimationControllerTest.java
@@ -135,12 +135,15 @@ public class BackAnimationControllerTest extends ShellTestCase {
         mShellExecutor.flushAll();
     }
 
-    private void createNavigationInfo(int backType, boolean enableAnimation) {
+    private void createNavigationInfo(int backType,
+            boolean enableAnimation,
+            boolean isAnimationCallback) {
         BackNavigationInfo.Builder builder = new BackNavigationInfo.Builder()
                 .setType(backType)
                 .setOnBackNavigationDone(new RemoteCallback((bundle) -> {}))
                 .setOnBackInvokedCallback(mAppCallback)
-                .setPrepareRemoteAnimation(enableAnimation);
+                .setPrepareRemoteAnimation(enableAnimation)
+                .setAnimationCallback(isAnimationCallback);
 
         createNavigationInfo(builder);
     }
@@ -218,7 +221,9 @@ public class BackAnimationControllerTest extends ShellTestCase {
     @Test
     public void backToHome_dispatchesEvents() throws RemoteException {
         registerAnimation(BackNavigationInfo.TYPE_RETURN_TO_HOME);
-        createNavigationInfo(BackNavigationInfo.TYPE_RETURN_TO_HOME, true);
+        createNavigationInfo(BackNavigationInfo.TYPE_RETURN_TO_HOME,
+                /* enableAnimation = */ true,
+                /* isAnimationCallback = */ false);
 
         doMotionEvent(MotionEvent.ACTION_DOWN, 0);
 
@@ -239,6 +244,32 @@ public class BackAnimationControllerTest extends ShellTestCase {
         verify(mAnimatorCallback).onBackInvoked();
     }
 
+    @Test
+    public void backToHomeWithAnimationCallback_dispatchesEvents() throws RemoteException {
+        registerAnimation(BackNavigationInfo.TYPE_RETURN_TO_HOME);
+        createNavigationInfo(BackNavigationInfo.TYPE_RETURN_TO_HOME,
+                /* enableAnimation = */ true,
+                /* isAnimationCallback = */ true);
+
+        doMotionEvent(MotionEvent.ACTION_DOWN, 0);
+
+        // Check that back start and progress is dispatched when first move.
+        doMotionEvent(MotionEvent.ACTION_MOVE, 100, 3000);
+
+        simulateRemoteAnimationStart(BackNavigationInfo.TYPE_RETURN_TO_HOME);
+
+        verify(mAnimatorCallback).onBackStarted(any(BackMotionEvent.class));
+        verify(mBackAnimationRunner).onAnimationStart(anyInt(), any(), any(), any(), any());
+        ArgumentCaptor<BackMotionEvent> backEventCaptor =
+                ArgumentCaptor.forClass(BackMotionEvent.class);
+        verify(mAnimatorCallback, atLeastOnce()).onBackProgressed(backEventCaptor.capture());
+
+        // Check that back invocation is dispatched.
+        mController.setTriggerBack(true);   // Fake trigger back
+        doMotionEvent(MotionEvent.ACTION_UP, 0);
+        verify(mAnimatorCallback).onBackInvoked();
+    }
+
     @Test
     public void animationDisabledFromSettings() throws RemoteException {
         // Toggle the setting off
@@ -254,7 +285,9 @@ public class BackAnimationControllerTest extends ShellTestCase {
         ArgumentCaptor<BackMotionEvent> backEventCaptor =
                 ArgumentCaptor.forClass(BackMotionEvent.class);
 
-        createNavigationInfo(BackNavigationInfo.TYPE_RETURN_TO_HOME, false);
+        createNavigationInfo(BackNavigationInfo.TYPE_RETURN_TO_HOME,
+                /* enableAnimation = */ false,
+                /* isAnimationCallback = */ false);
 
         triggerBackGesture();
         releaseBackGesture();
@@ -271,7 +304,9 @@ public class BackAnimationControllerTest extends ShellTestCase {
     @Test
     public void ignoresGesture_transitionInProgress() throws RemoteException {
         registerAnimation(BackNavigationInfo.TYPE_RETURN_TO_HOME);
-        createNavigationInfo(BackNavigationInfo.TYPE_RETURN_TO_HOME, true);
+        createNavigationInfo(BackNavigationInfo.TYPE_RETURN_TO_HOME,
+                /* enableAnimation = */ true,
+                /* isAnimationCallback = */ false);
 
         triggerBackGesture();
         simulateRemoteAnimationStart(BackNavigationInfo.TYPE_RETURN_TO_HOME);
@@ -309,7 +344,9 @@ public class BackAnimationControllerTest extends ShellTestCase {
     @Test
     public void acceptsGesture_transitionTimeout() throws RemoteException {
         registerAnimation(BackNavigationInfo.TYPE_RETURN_TO_HOME);
-        createNavigationInfo(BackNavigationInfo.TYPE_RETURN_TO_HOME, true);
+        createNavigationInfo(BackNavigationInfo.TYPE_RETURN_TO_HOME,
+                /* enableAnimation = */ true,
+                /* isAnimationCallback = */ false);
 
         // In case it is still running in animation.
         doNothing().when(mAnimatorCallback).onBackInvoked();
@@ -334,7 +371,9 @@ public class BackAnimationControllerTest extends ShellTestCase {
     public void cancelBackInvokeWhenLostFocus() throws RemoteException {
         registerAnimation(BackNavigationInfo.TYPE_RETURN_TO_HOME);
 
-        createNavigationInfo(BackNavigationInfo.TYPE_RETURN_TO_HOME, true);
+        createNavigationInfo(BackNavigationInfo.TYPE_RETURN_TO_HOME,
+                /* enableAnimation = */ true,
+                /* isAnimationCallback = */ false);
 
         doMotionEvent(MotionEvent.ACTION_DOWN, 0);
         // Check that back start and progress is dispatched when first move.
@@ -454,7 +493,9 @@ public class BackAnimationControllerTest extends ShellTestCase {
 
         mController.registerAnimation(type, animationRunner);
 
-        createNavigationInfo(type, true);
+        createNavigationInfo(type,
+                /* enableAnimation = */ true,
+                /* isAnimationCallback = */ false);
 
         doMotionEvent(MotionEvent.ACTION_DOWN, 0);
 
@@ -473,11 +514,15 @@ public class BackAnimationControllerTest extends ShellTestCase {
     }
 
     private void doMotionEvent(int actionDown, int coordinate) {
+        doMotionEvent(actionDown, coordinate, 0);
+    }
+
+    private void doMotionEvent(int actionDown, int coordinate, float velocity) {
         mController.onMotionEvent(
                 /* touchX */ coordinate,
                 /* touchY */ coordinate,
-                /* velocityX = */ 0,
-                /* velocityY = */ 0,
+                /* velocityX = */ velocity,
+                /* velocityY = */ velocity,
                 /* keyAction */ actionDown,
                 /* swipeEdge */ BackEvent.EDGE_LEFT);
     }