diff --git a/services/accessibility/java/com/android/server/accessibility/MotionEventInjector.java b/services/accessibility/java/com/android/server/accessibility/MotionEventInjector.java
index 46e3226bb751c..7b6a12822faa9 100644
--- a/services/accessibility/java/com/android/server/accessibility/MotionEventInjector.java
+++ b/services/accessibility/java/com/android/server/accessibility/MotionEventInjector.java
@@ -111,6 +111,15 @@ public class MotionEventInjector extends BaseEventStreamTransformation implement
 
     @Override
     public void onMotionEvent(MotionEvent event, MotionEvent rawEvent, int policyFlags) {
+        // MotionEventInjector would cancel any injected gesture when any MotionEvent arrives.
+        // For user using an external device to control the pointer movement, it's almost
+        // impossible to perform the gestures. Any slightly unintended movement results in the
+        // cancellation of the gesture.
+        if ((event.isFromSource(InputDevice.SOURCE_MOUSE)
+                && event.getActionMasked() == MotionEvent.ACTION_HOVER_MOVE)
+                && mOpenGesturesInProgress.get(EVENT_SOURCE, false)) {
+            return;
+        }
         cancelAnyPendingInjectedEvents();
         sendMotionEventToNext(event, rawEvent, policyFlags);
     }
diff --git a/services/tests/servicestests/src/com/android/server/accessibility/MotionEventInjectorTest.java b/services/tests/servicestests/src/com/android/server/accessibility/MotionEventInjectorTest.java
index 2cba9d0228664..2977414fb302b 100644
--- a/services/tests/servicestests/src/com/android/server/accessibility/MotionEventInjectorTest.java
+++ b/services/tests/servicestests/src/com/android/server/accessibility/MotionEventInjectorTest.java
@@ -17,6 +17,7 @@
 package com.android.server.accessibility;
 
 import static android.view.MotionEvent.ACTION_DOWN;
+import static android.view.MotionEvent.ACTION_HOVER_MOVE;
 import static android.view.MotionEvent.ACTION_UP;
 import static android.view.WindowManagerPolicyConstants.FLAG_PASS_TO_USER;
 
@@ -116,6 +117,7 @@ public class MotionEventInjectorTest {
 
     MotionEvent mClickDownEvent;
     MotionEvent mClickUpEvent;
+    MotionEvent mHoverMoveEvent;
 
     ArgumentCaptor<MotionEvent> mCaptor1 = ArgumentCaptor.forClass(MotionEvent.class);
     ArgumentCaptor<MotionEvent> mCaptor2 = ArgumentCaptor.forClass(MotionEvent.class);
@@ -152,6 +154,10 @@ public class MotionEventInjectorTest {
                 CLICK_POINT.y, 0);
         mClickUpEvent.setSource(InputDevice.SOURCE_TOUCHSCREEN);
 
+        mHoverMoveEvent = MotionEvent.obtain(0, 0, ACTION_HOVER_MOVE, CLICK_POINT.x, CLICK_POINT.y,
+                0);
+        mHoverMoveEvent.setSource(InputDevice.SOURCE_MOUSE);
+
         mIsLineStart = allOf(IS_ACTION_DOWN, isAtPoint(LINE_START), hasStandardInitialization(),
                 hasTimeFromDown(0));
         mIsLineMiddle = allOf(IS_ACTION_MOVE, isAtPoint(LINE_END), hasStandardInitialization(),
@@ -300,6 +306,23 @@ public class MotionEventInjectorTest {
         verify(mServiceInterface).onPerformGestureResult(LINE_SEQUENCE, false);
     }
 
+    @Test
+    public void
+            testOnMotionEvents_fromMouseWithInjectedGestureInProgress_shouldNotCancelAndPassReal()
+            throws RemoteException {
+        EventStreamTransformation next = attachMockNext(mMotionEventInjector);
+        injectEventsSync(mLineList, mServiceInterface, LINE_SEQUENCE);
+        mMessageCapturingHandler.sendOneMessage(); // Send a motion event
+        mMotionEventInjector.onMotionEvent(mHoverMoveEvent, mHoverMoveEvent, 0);
+        mMessageCapturingHandler.sendAllMessages();
+
+        verify(next, times(3)).onMotionEvent(mCaptor1.capture(), mCaptor2.capture(), anyInt());
+        assertThat(mCaptor1.getAllValues().get(0), mIsLineStart);
+        assertThat(mCaptor1.getAllValues().get(1), mIsLineMiddle);
+        assertThat(mCaptor1.getAllValues().get(2), mIsLineEnd);
+        verify(mServiceInterface).onPerformGestureResult(LINE_SEQUENCE, true);
+    }
+
     @Test
     public void testOnMotionEvents_closedInjectedGestureInProgress_shouldOnlyNotifyAndPassReal()
             throws RemoteException {