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iOS 动画执行中 退出后台 再进入前台，动画消失了，动画采用的是
[UIView beginAnimations:nil context:nil];
......
[UIView commitAnimations];这种方式实现的，谁碰到过类似问题？
It will disappear. This is the system setting. You need to get the notification and then restart the animation
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
It will disappear. This is the system setting. You need to get the notification and then restart the animation