package org.jssec.notification.visibilityPrivate;

import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.content.Context;
import android.os.Build;
import android.os.Bundle;
import android.view.View;

public class VisibilityPrivateNotificationActivity extends Activity {

    /**
    * Display a private Notification
    */
    private final int mNotificationId = 0;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
    
    public void onSendNotificationClick(View view) {
        // *** POINT 1 *** When preparing a Notification that includes private information, prepare an additional Noficiation for public display (displayed when the screen is locked).
        Notification.Builder publicNotificationBuilder = new Notification.Builder(this).setContentTitle("Notif
        ication : Public");
        if (Build.VERSION.SDK_INT >= 21)
            publicNotificationBuilder.setVisibility(Notification.VISIBILITY_PUBLIC);
        // *** POINT 2 *** Do not include private information in Notifications prepared for public display (displayed when the screen is locked).
        publicNotificationBuilder.setContentText("Visibility Public : Omitting sensitive data.");
        publicNotificationBuilder.setSmallIcon(R.drawable.ic_launcher);
        Notification publicNotification = publicNotificationBuilder.build();
        // Construct a Notification that includes private information.
        Notification.Builder privateNotificationBuilder = new Notification.Builder(this).setContentTitle("Notification : Private");
        // *** POINT 3 *** Explicitly set Visibility to Private when creating Notifications.
        if (Build.VERSION.SDK_int >= 21)
            privateNotificationBuilder.setVisibility(Notification.VISIBILITY_PRIVATE);

        // *** POINT 4 *** When Visibility is set to Private, Notifications may contain private information.
        privateNotificationBuilder.setContentText("Visibility Private : Including user info.");
        privateNotificationBuilder.setSmallIcon(R.drawable.ic_launcher);
        // When creating a Notification with Visibility=Private, we also create and register a separate
        Notification with Visibility=Public for public display.
        if (Build.VERSION.SDK_INT >= 21)
            privateNotificationBuilder.setPublicVersion(publicNotification);
        Notification privateNotification = privateNotificationBuilder.build();
        //Although not implemented in this sample code, in many cases
        //Notifications will use setContentIntent(PendingIntent intent)
        //to ensure that an Intent is transmission when Notification
        //is clicked. In this case, it is necessary to take steps--depending
        //on the type of component being called--to ensure that the Intent
        //in question is called by safe methods (for example, by explicitly
        //using Intent). For information on safe methods for calling various
        //types of component, see the following sections.
        //4.1. Creating and using Activities
        //4.2. Sending and receiving Broadcasts
        //4.4. Creating and using Services
        NotificationManager notificationManager = Как было сказано ранее, с помощью NotificationListenerService можно получить разрешение пользователя и считывать уведомления. Однако при работе с информацией из уведомлений следует быть осторожным, так как она может содержать личные данные пользователя.

@Override
public void onNotificationRemoved(StatusBarNotification sbn) {
    // Уведомление удалено.
    outputNotificationData(sbn, "Notification Deleted : ");
}

private void outputNotificationData(StatusBarNotification sbn, String prefix) {
    Notification notification = sbn.getNotification();
    int notificationID = sbn.getId();
    String packageName = sbn.getPackageName();
    long PostTime = sbn.getPostTime();
    String message = prefix + "Visibility :" + notification.visibility + " ID : " + notificationID;
    message += " Package : " + packageName + " PostTime : " + PostTime;
    Log.d("NotificationListen", message);
}