Question

我附上了示例代码，说明了我遇到的问题。由于某种原因，tableview需要是第一个选项卡，以便tableviewcontroller识别导航栏。此问题是此question I asked yesterday

的扩展

以下是实际示例项目iosTableTabTest

的链接

的AppDelegate：

    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    window = UIWindow(frame: UIScreen.mainScreen().bounds)
    let containerViewController:ContainerViewController = ContainerViewController()
    window!.rootViewController = containerViewController
    window!.makeKeyAndVisible()
    return true
}

ContainerViewController.swift：

class ContainerViewController: UIViewController, LoginDelegate {

var mainNavigationController: UINavigationController!
var myTabBarController: UITabBarController!
var loginViewController: LoginViewController!


override func viewDidLoad() {
    super.viewDidLoad()
    var mainStoryboard: UIStoryboard =  UIStoryboard(name: "Main", bundle: NSBundle.mainBundle())
    myTabBarController = mainStoryboard.instantiateViewControllerWithIdentifier("myTabBarController") as? UITabBarController
    loginViewController = mainStoryboard.instantiateViewControllerWithIdentifier("loginViewController") as? LoginViewController
    loginViewController.delegate = self

    mainNavigationController = UINavigationController(rootViewController: loginViewController)
    view.addSubview(mainNavigationController.view)
    addChildViewController(mainNavigationController)
    mainNavigationController.didMoveToParentViewController(self)
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
}

func loginPressed() {
    self.mainNavigationController.pushViewController(self.myTabBarController, animated: false)
}

}

LoginViewController.swift：

@objc
protocol LoginDelegate{
func loginPressed()
}

class LoginViewController: UIViewController {

@IBOutlet var loginBtn: UIButton!
 var delegate: LoginDelegate?

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

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
}
@IBAction func loginPressed(sender: AnyObject) {
    delegate?.loginPressed()
}
}

FirstTabViewController.swift：

class FirstTabViewController: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()
    self.navigationController?.topViewController.navigationItem.setHidesBackButton(true, animated: true)
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
}
}

SecondTabViewController.swift：

class SecondTabViewController: UITableViewController {

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

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
}

}

Answer 1

我阅读了您的代码并运行了您的项目，我相信问题在于您将UITabBarController嵌入到UINavigationController中。你想要做的是将每个UIViewController（或UITableViewController）嵌入到自己的UINavigationController中，然后将这些导航控制器设置为UITabBarController的视图控制器（即你可以在故事板上设置它）。

这就是为什么第二个选项卡（隐藏在导航栏下面的第一行）中tableviewcontroller的内容插入也存在问题。嵌入了UITabBarController的UINavigationController不会通过UITabBarController将适当的insets传递给它的视图控制器。

我对您的项目进行了一些更改：TableTest

<强> Main.storyboard

我在每个UITabBarController的视图控制器中嵌入了自己的UINavigationController

<强> ContainerViewController

我添加了loginViewController和myTabBarController的视图作为容器VC视图的子视图，然后将每个控制器添加为容器VC的子控制器。如果要使用导航栏，仍然可以将loginViewController嵌入到UINavigationController中，但为了简单起见，我将其删除了。

class ContainerViewController: UIViewController, LoginDelegate {

    //var mainNavigationController: UINavigationController!
    var myTabBarController: UITabBarController!
    var loginViewController: LoginViewController!


    override func viewDidLoad() {
        super.viewDidLoad()
        var mainStoryboard: UIStoryboard =  UIStoryboard(name: "Main", bundle: NSBundle.mainBundle())
        myTabBarController = mainStoryboard.instantiateViewControllerWithIdentifier("myTabBarController") as? UITabBarController
        loginViewController = mainStoryboard.instantiateViewControllerWithIdentifier("loginViewController") as? LoginViewController
        loginViewController.delegate = self

        //mainNavigationController = UINavigationController(rootViewController: loginViewController)
        //view.addSubview(mainNavigationController.view)
        //addChildViewController(mainNavigationController)
        //mainNavigationController.didMoveToParentViewController(self)

        view.addSubview(myTabBarController.view)
        view.addSubview(loginViewController.view)
        self.addChildViewController(myTabBarController)
        self.addChildViewController(loginViewController)
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }

    func loginPressed() {
        //self.mainNavigationController.pushViewController(self.myTabBarController, animated: false)
        loginViewController.view.removeFromSuperview()
        loginViewController.removeFromParentViewController()
    }
}

<强> FirstTabViewController

由于此视图控制器现在嵌入在故事板中自己的UINavigationController中，因此它可以像self.navigationItem一样访问其navigationItem

class FirstTabViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        //self.navigationController?.topViewController.navigationItem.setHidesBackButton(true, animated: true)
        self.navigationItem.setHidesBackButton(true, animated: true)
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }
}

Swift：tabcontroller中的表只有在第一个选项卡中才能正确定位？

1 个答案: