ios - 如何以编程方式在导航 Controller 中嵌入 View ？

Question

我在 UITabBarController 中有 3 个 View Controller 。只有一个 View Controller 我想把它放在导航 Controller 中。这样做的正确方法是什么，以便只有一个 View Controller 具有导航 Controller ？我要 aController在导航 Controller 中。

import UIKit

class TabBarController: UITabBarController {

    override func viewDidLoad() {
        super.viewDidLoad()
        let mController = MViewController()
        mpController.tabBarItem = UITabBarItem(title: "view1", image: UIImage(named: "viewoneimage"), tag: 0)



        let inputController = InputViewController()
        inputController.tabBarItem = UITabBarItem(title: "Input", image: UIImage(named: "plus"), tag: 1)

        let aController = ATableViewController()
        aController.tabBarItem = UITabBarItem(title: "custom", image: UIImage(named: "person.fill"), tag: 2)
        let navController = UINavigationController()
//        aController.navigationController = navController


        viewControllers = [mController, inputController, aController, navController]
        // Do any additional setup after loading the view.
    }




}

Answer 1

您必须嵌入您的 UIViewController里面Navigation Controllers并使用您的 Navigation Controllers 初始化您的选项卡菜单.

同样对于每个选项卡，您将有不同的 Navigation Controller
你的代码应该是这样的。

import UIKit

class TabBarController: UITabBarController {

    override func viewDidLoad() {
        super.viewDidLoad()
        let mController = MViewController()
        mpController.tabBarItem = UITabBarItem(title: "view1", image: UIImage(named: "viewoneimage"), tag: 0)
        let inputController = InputViewController()
        inputController.tabBarItem = UITabBarItem(title: "Input", image: UIImage(named: "plus"), tag: 1)
        let aController = ATableViewController()
        aController.tabBarItem = UITabBarItem(title: "custom", image: UIImage(named: "person.fill"), tag: 2)
        let navMController = UINavigationController(rootViewController: mpController)
        let navInputController = UINavigationController(rootViewController: inputController)
        let navaController = UINavigationController(rootViewController: aController)
        viewControllers = [navMController, navInputController, navaController]
    }
}