在UITableView上执行具有多个状态的segue的问题

Question

我有一个有两种状态的UITableView。一个是用户登录而另一个是用户注销的。两者都显示不同的细节如何设置tableview，以便当用户在tableview中选择某些内容时，它会转到指定的视图控制器。感谢。

import UIKit
import Firebase

    class SideTableViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {



        @IBOutlet weak var loggout: UIButton!
        @IBOutlet weak var tableview: UITableView!
        @IBOutlet weak var dismissButton: UIButton!

        var loggedIn = ["Find Event", "Create Event", "Past Events", "Recently Viewed", "Help", "Setting"]

        var loggedOut = ["Log In", "Find Event", "Create Event", "Help"]


        override func viewDidLoad() {
            super.viewDidLoad()
            dismissButton.layer.cornerRadius =
            dismissButton.frame.size.width / 2
            loggout.layer.cornerRadius =
            loggout.frame.size.width / 2
            if Auth.auth().currentUser != nil {
                loggout.isHidden = false
                print("User Signed In, Showing Relivent Info")

            } else {
                loggout.isHidden = true
                print("User Not Logged In, Showing Relivent Info")
            }
            tableview.reloadData()
        }

        func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
            if Auth.auth().currentUser != nil {
                // User is signed in.
                return loggedIn.count

            } else {
                // No user is signed in.
                return loggedOut.count
            }
        }

        func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
            let cell = tableView.dequeueReusableCell(withIdentifier: "customcell", for: indexPath as IndexPath)
            if Auth.auth().currentUser != nil {
                // User is signed in.
                cell.textLabel?.text = loggedIn[indexPath.item]
                return cell

            } else {
                // No user is signed in.
                cell.textLabel?.text = loggedOut[indexPath.item]
                return cell
            }
        }

        func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
                //performSegue(withIdentifier: "tologinfrommain", sender: nil)
        }

Answer 1

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    print("Row #\((indexPath as NSIndexPath).row)")

    let cell = tableView.cellForRow(at: indexPath) as! popTableViewCell
     if Auth.auth().currentUser != nil {
    if  cell.textLabel?.text! == "Find Event"{
        print(loggedIn[(indexPath as NSIndexPath).row])
       performSegue(withIdentifier: "menutofind", sender: nil)
    }
    else if cell.textLabel?.text! == "Create Event"{
        print(loggedIn[(indexPath as NSIndexPath).row])
        performSegue(withIdentifier: "menutocreate", sender: nil)
    }
    else if cell.textLabel?.text! == "Past Events" {
        print(loggedIn[(indexPath as NSIndexPath).row])
    performSegue(withIdentifier: "menutopast", sender: nil)
    }
    else if cell.textLabel?.text! == "Recently Viewed" {
        print(loggedIn[(indexPath as NSIndexPath).row])
        performSegue(withIdentifier: "menutorv", sender: nil)
    }
    else if cell.textLabel?.text! == "Help" {
        print(loggedIn[(indexPath as NSIndexPath).row])
        performSegue(withIdentifier: "menutohelp", sender: nil)
    }
    else if cell.textLabel?.text! == "Setting" {
        print(loggedIn[(indexPath as NSIndexPath).row])
       performSegue(withIdentifier: "menutosetting", sender: nil)
    }
}
     else {

    if cell.textLabel?.text! == "Log In" {
performSegue(withIdentifier: "menutologin", sender: nil)
}
else if  cell.textLabel?.text! == "Find Event" {
performSegue(withIdentifier: "menutofind", sender: nil)
}
else if  cell.textLabel?.text! == "Create Event" {
performSegue(withIdentifier: "menutocreate", sender: nil)
}
else if  cell.textLabel?.text! == "Help" {
performSegue(withIdentifier: "menutohelp", sender: nil)
}

    }

}

通过这个你可以对你想要的VC进行Segue。

希望它有所帮助。

Answer 2

为登录和注销状态创建两个所需segue的静态数组。

@IBOutlet weak var loggout: UIButton!
        @IBOutlet weak var tableview: UITableView!
        @IBOutlet weak var dismissButton: UIButton!

        var loggedIn = ["Find Event", "Create Event", "Past Events", "Recently Viewed", "Help", "Setting"]

        var loggedOut = ["Log In", "Find Event", "Create Event", "Help"]

satatic var loggedInSegues = ["FindEventSegue", "CreateEventSegue", "PastEventSegue", "RecentlyViewedSegue", "HelpSegue", "SettingsSegue"]

static var loggedOutSegues = ["LogInSegue", "FindEventSegue", "CreateEventSegue", "HelpSegue"]

        override func viewDidLoad() {
            super.viewDidLoad()
            dismissButton.layer.cornerRadius =
            dismissButton.frame.size.width / 2
            loggout.layer.cornerRadius =
            loggout.frame.size.width / 2
            if Auth.auth().currentUser != nil {
                loggout.isHidden = false
                print("User Signed In, Showing Relivent Info")

            } else {
                loggout.isHidden = true
                print("User Not Logged In, Showing Relivent Info")
            }
            tableview.reloadData()
        }

        func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
            if Auth.auth().currentUser != nil {
                // User is signed in.
                return loggedIn.count

            } else {
                // No user is signed in.
                return loggedOut.count
            }
        }

        func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
            let cell = tableView.dequeueReusableCell(withIdentifier: "customcell", for: indexPath as IndexPath)
            if Auth.auth().currentUser != nil {
                // User is signed in.
                cell.textLabel?.text = loggedIn[indexPath.item]
                return cell

            } else {
                // No user is signed in.
                cell.textLabel?.text = loggedOut[indexPath.item]
                return cell
            }
        }

        func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
                if Auth.auth().currentUser != nil  {
                performSegue(withIdentifier:loggedInSegues[indexPath.row], sender: nil)
            } else {
                performSegue(withIdentifier: loggedOutSegues[indexPath.row], sender: nil)
            }
        }