How to read all the coming notifications in androi

问题:

How to read all the coming notifications in android. Is it possible to use the broadcast receiver to listen the incoming notifications and the ability to read the notifications information.

回答1:

First you must declare your intent to receive notifications in your manifest, so that you can get the android.permission.BIND_NOTIFICATION_LISTENER_SERVICE permission.

AndroidManifest.xml:

<service android:name=".NotificationListener"
         android:label="@string/service_name"
         android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE">
    <intent-filter>
        <action android:name="android.service.notification.NotificationListenerService" />
    </intent-filter>
</service>

Then create a NotificationListenerService class and override the onNotificationPosted function.

For more information, read the developer reference here: https://developer.android.com/reference/android/service/notification/NotificationListenerService.html

Also look at this simple example application for implementation guidance: https://github.com/kpbird/NotificationListenerService-Example/

回答2:

Using NotificationListenerService we can easily read the notification of all application. Check complete demo code here

回答3:

You need to do like this in onNotificationPosted in order to get all messages

if ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)){
        Parcelable b[] = (Parcelable[]) extras.get(Notification.EXTRA_MESSAGES);

        if(b != null){

            for (Parcelable tmp : b){

                Bundle msgBundle = (Bundle) tmp;
                content = content + msgBundle.getString("text") + "\n";

            /*Set<String> io = msgBundle.keySet(); // To get the keys available for this bundle*/

            }
        }
    }