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-rw-r--r--core/java/android/service/notification/NotificationAssistantService.java3
-rw-r--r--core/java/android/service/notification/NotificationListenerService.java4
2 files changed, 7 insertions, 0 deletions
diff --git a/core/java/android/service/notification/NotificationAssistantService.java b/core/java/android/service/notification/NotificationAssistantService.java
index 3b820ca1e165..26240c572898 100644
--- a/core/java/android/service/notification/NotificationAssistantService.java
+++ b/core/java/android/service/notification/NotificationAssistantService.java
@@ -52,6 +52,9 @@ import java.util.List;
* {@link #onNotificationEnqueued(StatusBarNotification)} will only be called for notifications
* sent to the current user, and {@link Adjustment adjuments} will only be accepted for the
* current user.
+ * <p>
+ * All callbacks are called on the main thread.
+ * </p>
*
* @hide
*/
diff --git a/core/java/android/service/notification/NotificationListenerService.java b/core/java/android/service/notification/NotificationListenerService.java
index 1b588f470971..d9ed2aafc9cd 100644
--- a/core/java/android/service/notification/NotificationListenerService.java
+++ b/core/java/android/service/notification/NotificationListenerService.java
@@ -91,6 +91,10 @@ import java.util.List;
* notification listeners running in a work profile. A
* {@link android.app.admin.DevicePolicyManager} might block notifications originating from a work
* profile.</p>
+ * <p>
+ * From {@link Build.VERSION_CODES#N} onward all callbacks are called on the main thread. Prior
+ * to N, there is no guarantee on what thread the callback will happen.
+ * </p>
*/
public abstract class NotificationListenerService extends Service {