CODEWITHSUNDEEP
iosswiftuitableview
HardikDabhi
HardikDabhi

Reputation: 2952

How to push new viewcontroller when click on tableview cell row?

I am totally new guy (3 days fresher) in SWIFT programming. I have created one sample tableview cell demo in swift. I have used "Testviewcontroller" with xib.

code is

import UIKit


class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {

    @IBOutlet weak var myTableview:UITableView!

    let fruits = ["Apple","Banana","Grapes","Chiku","Watermalon","Bear"]
    let blogSegueIdentifier = "TestViewController"

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.


    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
    {
        return self.fruits.count
    }
    public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
    {
        let cell: UITableViewCell = UITableViewCell(style: UITableViewCellStyle.subtitle, reuseIdentifier: "MyTestCell")
        cell.textLabel?.text = self.fruits[indexPath.row]
        return cell
    }

    public func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
    {

        let testVC = TestViewController(nibName : "TestViewController" , bundle:nil)
        navigationController?.pushViewController(testVC, animated: true)

        print("You have selected \(indexPath.row) row")
    }

}

Appdelegate

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?


    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        return true
    }

    func applicationWillResignActive(_ application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
    }

    func applicationDidEnterBackground(_ application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(_ application: UIApplication) {
        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(_ application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }

    func applicationWillTerminate(_ application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }


}

My question is

I have used "didSelectRowAt indexPath" delegate method. I am not able to push new view controller Please help me guys i am not able to solve this.

Upvotes: 2

Views: 1647

Answers (3)

NotABot
NotABot

Reputation: 526

I think that Navigation controller is nil in your case. Click on your xib file. Click on main View. Go to Editor menu, click on Embed in, select Navigation controller.

Upvotes: 0

Umair Afzal
Umair Afzal

Reputation: 5039

I think you dot not have a navigationController. If this viewController is your rootViewController you can do something like this in your appDelegate.

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

let navController = UINavigationController()
let yourViewContoller = YourViewController()

navController.viewControllers = [yourViewContoller]

self.window?.rootViewController = navController
return true

}

Make sure that your have written init in your viewController like this

    init() {
    super.init(nibName: "YourViewController", bundle: Bundle.main)
}

Upvotes: 0

Imad Ali
Imad Ali

Reputation: 3301

As your using XIB for each UIViewController, you need to add the following code in your AppDelegate.swift file then you can access navigationController in your ViewController.swift.

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

        let viewController = ViewController(nibName:"ViewController", bundle:nil)

        let navController = UINavigationController(rootViewController: viewController)

        self.window!.rootViewController = navController

        self.window!.makeKeyAndVisible()
        return true

}

Upvotes: 1

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