Countdown
![Image](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNvH2p6aBH8KnIVGq5REuK8XEFe7rj37BVLOERr8oUvUgd3QffxTzFpbBt1yTzfXxxRQLg9f4423-QN5cuZzZ8JIJU3CqRR75CPCL5xtv_muVovp5SejL3buOLwX92pyJlqSzeXLzpjRLe/s1600/1628599053687053-0.png)
Users usually don't expect they have to queue in an app. If queueing is a must, please use Notification to tell your how long they have to wait. So they can switch to other apps. Otherwise, should the user keep this page active?