ios – 嵌入在容器视图中的UINavigationController,显示大小错误的表视图控制器

我正在尝试找到解决这种情况的方法：
我有一个UITabBarController它的一个segue连接到一个容器视图控制器(BAnnerViewController),我用来嵌入一个UINavigationController,导航控制器推送其他容器视图控制器(EventListContainerviewController),每个包含一个tableview控制器.
这是我的故事板上的一个屏幕

问题是最后一个容器视图显示在一个比它们的容器更小的框架中.它们似乎松动了底部的tabbar空间.

我强制所有视图控制器,导航控制器和tabbar控制器都避免不扩展边缘并调整插入.

颜色意味着：

当导航控制器添加蓝色容器视图时,似乎某些东西会发生变化,从而减少相同数量的tabbar(49pt).
它也可以在视图层次结构的递归描述中看到：

<UIWindow: 0x7fcc6bd5af40; frame = (0 0; 320 568); gestureRecognizers = <NSArray: 0x7fcc6bd4dd80>; layer = <UIWindowLayer: 0x7fcc6bd317c0>>
   | <UILayoutContainerView: 0x7fcc6bd671c0; frame = (0 0; 320 568); autoresize = W+H; layer = <CALayer: 0x7fcc6bd66de0>>
   |    | <UITransitionView: 0x7fcc6bd6a980; frame = (0 0; 320 568); clipsToBounds = YES; autoresize = W+H; layer = <CALayer: 0x7fcc6bd6ace0>>
   |    |    | <UIViewControllerWrapperView: 0x7fcc6d3a7b20; frame = (0 0; 320 568); autoresize = W+H; layer = <CALayer: 0x7fcc6d3a7db0>>
   |    |    |    | <UIView: 0x7fcc6d38bb00; frame = (0 0; 320 519); autoresize = W+H; layer = <CALayer: 0x7fcc6d38bbd0>>
   |    |    |    |    | <UIView: 0x7fcc6d38b860; frame = (0 0; 320 519); opaque = NO; autoresize = RM+BM; layer = <CALayer: 0x7fcc6d38b930>>
   |    |    |    |    |    | <UILayoutContainerView: 0x7fcc6d398000; frame = (0 0; 320 519); autoresize = W+H; gestureRecognizers = <NSArray: 0x7fcc6d3a4b50>; layer = <CALayer: 0x7fcc6d387670>>
   |    |    |    |    |    |    | <UINavigationTransitionView: 0x7fcc6d39cfa0; frame = (0 0; 320 519); clipsToBounds = YES; autoresize = W+H; layer = <CALayer: 0x7fcc6d39cc40>>
   |    |    |    |    |    |    |    | <UIViewControllerWrapperView: 0x7fcc6bf31230; frame = (0 0; 320 519); autoresize = W+H; layer = <CALayer: 0x7fcc6bf31300>>
   |    |    |    |    |    |    |    |    | <UIView: 0x7fcc6bd7b7c0; frame = (0 64; 320 406); autoresize = W+H; layer = <CALayer: 0x7fcc6bd7afe0>>
   |    |    |    |    |    |    |    |    |    | <UIView: 0x7fcc6bd7b690; frame = (0 0; 320 406); opaque = NO; autoresize = RM+BM; layer = <CALayer: 0x7fcc6bd7aac0>>
   |    |    |    |    |    |    |    |    |    |    | <UITableView: 0x7fcc6f03c400; frame = (0 0; 320 406); clipsToBounds = YES; autoresize = W+H; gestureRecognizers = <NSArray: 0x7fcc6bf34aa0>; layer = <CALayer: 0x7fcc6bf30bc0>; contentOffset: {0,0}; contentSize: {320,170}>
   |    |    |    |    |    |    |    |    |    |    |    | <UITableViewWrapperView: 0x7fcc6bf35960; frame = (0 0; 320 406); gestureRecognizers = <NSArray: 0x7fcc6bf363e0>; layer = <CALayer: 0x7fcc6bf35ed0>; contentOffset: {0,406}>
   |    |    |    |    |    |    |    |    |    |    |    |    | <EventCell: 0x7fcc6bca2950; baseClass = UITableViewCell; frame = (0 85; 320 85); autoresize = W; layer = <CALayer: 0x7fcc6bca2ca0>>

我试图使用自定义segue而不是容器视图尝试强制布局,但我猜是导航控制器故障.
如您所见,横幅未按预期与视图重叠.

有什么建议吗？

class MyNavigationController: UINavigationController {

    override var tabBarController: UITabBarController? {
        return nil
    }

}

extension UIViewController {

    func mainViewController() -> MainViewController? {
        var vc: UIViewController? = self
        while !(vc is MainViewController) && vc != nil {
            vc = vc?.parent ?? vc?.navigationController ?? vc?.presenTingViewController
        }
        return vc as? MainViewController
    }

}