notificationManager get notification by Id

问题:

Anyone know any way to get a notification by id? It's I want when get a new notification if it is still being shown in the status bar of Android want to get the information and add it to a new notification. Thank you.

回答1:

NotificationManager doesn't give you a way to find existing notifications by ID. If you want to update a notification, post a new notification but use the same ID. It will either show it as new or update the existing notification with that ID.

回答2:

You can get active notification list from NotificationManager.

@RequiresApi(api = Build.VERSION_CODES.M)
public Notification getActiveNotification(int notificationId) {
    NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    StatusBarNotification[] barNotifications = notificationManager.getActiveNotifications();
    for(StatusBarNotification notification: barNotifications) {
        if (notification.getId() == notificationId) {
            return notification.getNotification();
        }
    }
    return null;
}