当你推送的时候写下面的代码：

yourViewController.hidesBottomBarWhenPushed = true

你也可以隐藏标签栏上推从情节提要也。选择你要推的视图控制器，然后选中在推时隐藏底部栏：

1.当你推送的时候写下面的代码：

let yourVC = Storyboard.Main.storyboard().instantiateViewController(withIdentifier: "YourViewController") as! YourViewController
yourVC.hidesBottomBarWhenPushed = true
self.navigationController?.pushViewController(yourVC, animated: true)

好了，我已经解决了这个问题。我不得不在push代码之前和之后添加hidesBottomBarWhenPushed两次：

self.hidesBottomBarWhenPushed  = true
self.navigationController?.pushViewController(detailVC, animated: true)
self.hidesBottomBarWhenPushed = false

转到故事板并检查Hide Bottom Bar On Push：

或者直接输入DeatilVC viewDidLoad方法hidesBottomBarWhenPushed = true。

试试这个

override func viewWillDisappear(_ animated: Bool) {
    self.tabBarController?.tabBar.isHidden = true
}

override func viewWillAppear(_ animated: Bool) {
    self.tabBarController?.tabBar.isHidden = false
}

iOS UINavigationViewController和UITabBar

你有三个选择：
1.在情节提要中：选择ViewController -> Attributes Inspector -> Hide Bottom Bar On Push
1.代码：vc.hidesBottomBarWhenPushed
1.在ViewController代码中：

public override var hidesBottomBarWhenPushed: Bool {
    get { return true }
    set { }
}