在UITabBarController和UINavigationController中以編程方式顯示視圖

Question

我們正在開發一個具有RootVC的iOS應用，該應用中以編程方式放置了4個TAB，每個Tab都有一個單獨的ViewController 。 負責搜索的選項卡之一。 當用戶點擊此特定ViewController上的搜索按鈕時，我們想在另一個ViewController顯示搜索結果，該ViewController的底部是TabBar ，頂部是帶有“ Back”按鈕的NavigationController 。 我該如何實現？ 我嘗試使用self.navigationController?.present ，push，但沒有一個起作用。

RootVC.swift：

class RootVC: UITabBarController {

    override func viewDidLoad() {
        super.viewDidLoad()
        setupTabBarLayout()

    }

    private func setupTabBarLayout() {
        // 1. Profile page
        let profileVC = ProfileVC()
        let profileVCBarItem = UITabBarItem(title: "Profil", image: UIImage(named: "profile_icon"), tag: 1)
        profileVC.tabBarItem = profileVCBarItem

        // 2. Search
        let searchVC = SearchVC()
        let searchVCBarItem = UITabBarItem(title: "Search", image: UIImage(named: "search_icon"), tag: 2)
        searchVC.navigationItem.leftBarButtonItem = nil
        searchVC.tabBarItem = searchVCBarItem

        // 3. Meet
        let meetVC = MeetVC()
        let meetVC = SearchResultsVC()
        let meetVCBarItem = UITabBarItem(title: "Meet", image: UIImage(named: "meet_icon"), tag: 3)
        meetVC.tabBarItem = meetVCBarItem

        // 4. Activities
        let activitiesVC = ActivitiesVC()
        let activitiesVCBarITem = UITabBarItem(title: "Activities", image: UIImage(named: "activities_icon"), tag: 4)
        activitiesVC.tabBarItem = activitiesVCBarITem

        // VC Setup
        viewControllers = [profileVC, searchVC, meetVC, activitiesVC]
        // Design settings
        self.tabBar.backgroundColor = .lightButtonBg
        self.tabBar.barTintColor = .darkMagenta
        self.tabBar.tintColor = .customWhite
        self.tabBar.unselectedItemTintColor = .lightButtonBg
        self.tabBar.isTranslucent = false

    }

Answer 1

嘗試這個

var vc = storyboard?.instantiateViewController(withIdentifier: "identifierForStoryboard

navigationController?.pushViewController(vc, animated: true)

然后觀察是否存在諸如視圖不在層次結構之類的錯誤