解决办法

if (@available(iOS 11.0, *)) {
    self.tableView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
} else {
    self.automaticallyAdjustsScrollViewInsets = NO;
}

参考

https://www.jianshu.com/p/afeddc6b352e

一款轻量级的自动布局框架

https://github.com/xjh093/JHFrameLayout