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-rw-r--r--core/java/android/accessibilityservice/AccessibilityService.java4
1 files changed, 3 insertions, 1 deletions
diff --git a/core/java/android/accessibilityservice/AccessibilityService.java b/core/java/android/accessibilityservice/AccessibilityService.java
index 765a2ba45079..325be600e454 100644
--- a/core/java/android/accessibilityservice/AccessibilityService.java
+++ b/core/java/android/accessibilityservice/AccessibilityService.java
@@ -518,7 +518,9 @@ public abstract class AccessibilityService extends Service {
public static final int GLOBAL_ACTION_POWER_DIALOG = 6;
/**
- * Action to toggle docking the current app's window
+ * Action to toggle docking the current app's window.
+ * <p>
+ * <strong>Note:</strong> It is effective only if it appears in {@link #getSystemActions()}.
*/
public static final int GLOBAL_ACTION_TOGGLE_SPLIT_SCREEN = 7;