New NotificationListener API: getActiveNotifications()

This allows a listener service to catch up on the current
state of the notification panel at any time, including at
startup.

Bug: 8656860
Change-Id: I1a3d665d84576e17870929a63dda334afc696010

1 files changed, 15 insertions, 0 deletions

diff --git a/core/java/android/service/notification/NotificationListenerService.java b/core/java/android/service/notification/NotificationListenerService.java
index 8b72ca9..6a5864c 100644
--- a/core/java/android/service/notification/NotificationListenerService.java
+++ b/core/java/android/service/notification/NotificationListenerService.java
@@ -124,6 +124,21 @@ public abstract class NotificationListenerService extends Service {
         }
     }
 
+    /**
+     * Request the list of outstanding notifications (that is, those that are visible to the
+     * current user). Useful when starting up and you don't know what's already been posted.
+     *
+     * @return An array of active notifications.
+     */
+    public StatusBarNotification[] getActiveNotifications() {
+        try {
+            return getNotificationInterface().getActiveNotificationsFromListener(mWrapper);
+        } catch (android.os.RemoteException ex) {
+            Log.v(TAG, "Unable to contact notification manager", ex);
+        }
+        return null;
+    }
+
     @Override
     public IBinder onBind(Intent intent) {
         if (mWrapper == null) {