diff --git a/core/java/android/hardware/input/InputManager.java b/core/java/android/hardware/input/InputManager.java
index 01fd3964df1d2..c83ccfa81f957 100644
--- a/core/java/android/hardware/input/InputManager.java
+++ b/core/java/android/hardware/input/InputManager.java
@@ -222,6 +222,14 @@ public final class InputManager {
     @ChangeId
     public static final long BLOCK_FLAG_SLIPPERY = android.os.IInputConstants.BLOCK_FLAG_SLIPPERY;
 
+    /**
+     * Check whether apps are using MotionEvent.getRawX/Y. This is implementation-specific, and
+     * thus undefined for most 3p app usages.
+     * @hide
+     */
+    @ChangeId
+    public static final long APP_USES_RAW_INPUT_COORDS = 179274888L;
+
     /**
      * Input Event Injection Synchronization Mode: None.
      * Never blocks.  Injection is asynchronous and is assumed always to be successful.
diff --git a/core/java/android/view/MotionEvent.java b/core/java/android/view/MotionEvent.java
index 6801c27851a9a..dea32cd96756e 100644
--- a/core/java/android/view/MotionEvent.java
+++ b/core/java/android/view/MotionEvent.java
@@ -16,6 +16,7 @@
 
 package android.view;
 
+import static android.hardware.input.InputManager.APP_USES_RAW_INPUT_COORDS;
 import static android.view.Display.DEFAULT_DISPLAY;
 
 import static java.lang.annotation.RetentionPolicy.SOURCE;
@@ -23,6 +24,7 @@ import static java.lang.annotation.RetentionPolicy.SOURCE;
 import android.annotation.IntDef;
 import android.annotation.Nullable;
 import android.annotation.TestApi;
+import android.compat.Compatibility;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.graphics.Matrix;
 import android.os.Build;
@@ -2672,6 +2674,7 @@ public final class MotionEvent extends InputEvent implements Parcelable {
      * @see #AXIS_X
      */
     public final float getRawX() {
+        Compatibility.reportChange(APP_USES_RAW_INPUT_COORDS);
         return nativeGetRawAxisValue(mNativePtr, AXIS_X, 0, HISTORY_CURRENT);
     }
 
@@ -2685,6 +2688,7 @@ public final class MotionEvent extends InputEvent implements Parcelable {
      * @see #AXIS_Y
      */
     public final float getRawY() {
+        Compatibility.reportChange(APP_USES_RAW_INPUT_COORDS);
         return nativeGetRawAxisValue(mNativePtr, AXIS_Y, 0, HISTORY_CURRENT);
     }
 
@@ -2701,6 +2705,7 @@ public final class MotionEvent extends InputEvent implements Parcelable {
      * @see #AXIS_X
      */
     public float getRawX(int pointerIndex) {
+        Compatibility.reportChange(APP_USES_RAW_INPUT_COORDS);
         return nativeGetRawAxisValue(mNativePtr, AXIS_X, pointerIndex, HISTORY_CURRENT);
     }
 
@@ -2717,6 +2722,7 @@ public final class MotionEvent extends InputEvent implements Parcelable {
      * @see #AXIS_Y
      */
     public float getRawY(int pointerIndex) {
+        Compatibility.reportChange(APP_USES_RAW_INPUT_COORDS);
         return nativeGetRawAxisValue(mNativePtr, AXIS_Y, pointerIndex, HISTORY_CURRENT);
     }