diff --git a/api/test-current.txt b/api/test-current.txt
index d1dc37ccb9046..38897c86dbfcc 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -47312,6 +47312,7 @@ package android.view {
     field public static final deprecated int MEMORY_TYPE_HARDWARE = 1; // 0x1
     field public static final deprecated int MEMORY_TYPE_NORMAL = 0; // 0x0
     field public static final deprecated int MEMORY_TYPE_PUSH_BUFFERS = 3; // 0x3
+    field public static final int PRIVATE_FLAG_NO_MOVE_ANIMATION = 64; // 0x40
     field public static final int ROTATION_ANIMATION_CHANGED = 4096; // 0x1000
     field public static final int ROTATION_ANIMATION_CROSSFADE = 1; // 0x1
     field public static final int ROTATION_ANIMATION_JUMPCUT = 2; // 0x2
@@ -47372,6 +47373,7 @@ package android.view {
     field public java.lang.String packageName;
     field public int preferredDisplayModeId;
     field public deprecated float preferredRefreshRate;
+    field public int privateFlags;
     field public int rotationAnimation;
     field public float screenBrightness;
     field public int screenOrientation;
diff --git a/core/java/android/view/WindowManager.java b/core/java/android/view/WindowManager.java
index 6b8aab6fd5fec..666ccf4869419 100644
--- a/core/java/android/view/WindowManager.java
+++ b/core/java/android/view/WindowManager.java
@@ -19,6 +19,7 @@ package android.view;
 import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.SystemApi;
+import android.annotation.TestApi;
 import android.app.KeyguardManager;
 import android.app.Presentation;
 import android.content.Context;
@@ -1278,7 +1279,9 @@ public interface WindowManager extends ViewManager {
         /**
          * Never animate position changes of the window.
          *
-         * {@hide} */
+         * {@hide}
+         */
+        @TestApi
         public static final int PRIVATE_FLAG_NO_MOVE_ANIMATION = 0x00000040;
 
         /** Window flag: special flag to limit the size of the window to be
@@ -1387,6 +1390,7 @@ public interface WindowManager extends ViewManager {
          * Control flags that are private to the platform.
          * @hide
          */
+        @TestApi
         public int privateFlags;
 
         /**