Suppressing notification from package com.example.mynotification by user request.

在学Android多媒体Notification时，怎么修改代码，手机端就是不弹通知，翻看Log发现如标题错误，经在网上查资料，发现是手机设置问题，打开手机设置，通知与状态栏，通知管理，找到对应的应用，允许该应用谈通知即可。
代码如下：

    private void createNotification() {
        Intent intent = new Intent(this, NotifictionActivity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
        NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            NotificationChannel channel = new NotificationChannel("1", "name", NotificationManager.IMPORTANCE_HIGH);
            mNotificationManager.createNotificationChannel(channel);
            Notification notification = new NotificationCompat.Builder(this, "1")
                    .setContentTitle("我的通知")
                    .setContentText("我通知的内容")
                    .setWhen(System.currentTimeMillis())
                    .setContentIntent(pendingIntent)
                    .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher_background))
                    .setSmallIcon(R.drawable.ic_launcher_background)
                    .setAutoCancel(true)
                    .build();
            mNotificationManager.notify(1, notification);
        } else {
            Notification notification = new Notification.Builder(this)
                    .setContentTitle("我的通知")
                    .setContentText("我通知的内容")
                    .setWhen(System.currentTimeMillis())
                    .setContentIntent(pendingIntent)
                    .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher_background))
                    .setSmallIcon(R.drawable.ic_launcher_background)
                    .setAutoCancel(true).build();
            mNotificationManager.notify(1, notification);
        }
    }

参考链接：link