1 files changed, 13 insertions, 1 deletions
diff --git a/core/java/android/view/accessibility/AccessibilityInteractionClient.java b/core/java/android/view/accessibility/AccessibilityInteractionClient.java
index 35f0d9d..f73faf3 100644
--- a/core/java/android/view/accessibility/AccessibilityInteractionClient.java
+++ b/core/java/android/view/accessibility/AccessibilityInteractionClient.java
@@ -84,7 +84,7 @@ public final class AccessibilityInteractionClient
 
     private final Object mInstanceLock = new Object();
 
-    private int mInteractionId = -1;
+    private volatile int mInteractionId = -1;
 
     private AccessibilityNodeInfo mFindAccessibilityNodeInfoResult;
 
@@ -150,6 +150,18 @@ public final class AccessibilityInteractionClient
     }
 
     /**
+     * Gets the root {@link AccessibilityNodeInfo} in the currently active window.
+     *
+     * @param connectionId The id of a connection for interacting with the system.
+     * @return The root {@link AccessibilityNodeInfo} if found, null otherwise.
+     */
+    public AccessibilityNodeInfo getRootInActiveWindow(int connectionId) {
+        return findAccessibilityNodeInfoByAccessibilityId(connectionId,
+                AccessibilityNodeInfo.ACTIVE_WINDOW_ID, AccessibilityNodeInfo.ROOT_NODE_ID,
+                AccessibilityNodeInfo.FLAG_PREFETCH_DESCENDANTS);
+    }
+
+    /**
      * Finds an {@link AccessibilityNodeInfo} by accessibility id.
      *
      * @param connectionId The id of a connection for interacting with the system.