How clear all notifications of notification bar in Android 7.1?

Question

I want clear all notifications of notification bar and had made a separated class that extends NotificationListenerService

package com.testando.teste;

import android.service.notification.NotificationListenerService;
import android.service.notification.StatusBarNotification;

public class NotificationListener extends NotificationListenerService {

    @Override
    public void onNotificationPosted(StatusBarNotification sbn) {
        cancelNotification(sbn.getKey());
    }
}

and my manifest file is like this:

<application>

<service android:name=".NotificationListener"
            android:enabled="true"
            android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE">
            <intent-filter>
                <action android:name="android.service.notification.NotificationListenerService" />
            </intent-filter>
        </service>

 </application>

Then i want know why every time that a notification arrives, this not is removed?

Or then some one know some way of remove these notification without use of NotificationListenerService class, similar to "Clear All" button?

Are you sure you enabled the app access to notifications from within system settings? — Pawel, Aug 09 '18 at 23:24
@Pawel, then this can be the reason to nothing is working. How make this programatically? — , Aug 09 '18 at 23:27
You can only open settings activity like [this](https://stackoverflow.com/a/32368604/9241978). It is impossible to grant this permission without user explicit action. — Pawel, Aug 09 '18 at 23:31
@Pawel,my app is unlocked to notifications and even so still not works. My last attempt was only [**this code**](https://stackoverflow.com/a/13676534/9672569) without nothing on manifest related to **Notifications**. — , Aug 10 '18 at 02:08

score 1 · Answer 1 · answered Aug 10 '18 at 03:48

1

// Clears notification tray messages
    public static void clearNotifications(Context context) {
        try{
            NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
            notificationManager.cancelAll();
        }catch (Exception e){
            e.printStackTrace();
        }
    }

AndroidHive has a detail tutorial for Notifications with

Firebase Cloud Messaging

This tutorial is your reference.I hope this will help for you.

answered Aug 10 '18 at 03:48

Htoo Aung Hlaing

2,173
15
26

i need of a effect where i not need click over notification, want make equals to "Clear All" button. This is possible? – Aug 10 '18 at 16:52
Form example, [**this way**](https://angularfirebase.com/images/native-ionic-fcm.gif) – Aug 10 '18 at 17:00
1

yes, you can , it is work as "Clear All" button. You should try with code – Htoo Aung Hlaing Aug 12 '18 at 08:47

How clear all notifications of notification bar in Android 7.1?

1 Answers1