navegacion - La acción del botón y la navegación no funcionan en viewcontroller en ios veloces

navegacion privada ios 12

Question

 func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
self.window = UIWindow(frame:UIScreen.main.bounds)
let homeVC = ConstDetailViewController(nibName: "ConstDetailViewController", bundle: nil)
//homeVC.tabBarItem.title = "Home";
homeVC.tabBarItem.image = UIImage(named: "HomeRe.png")
// Settings controller
let settingsVC = LeaderboardViewController(nibName: "LeaderboardViewController", bundle: nil)
settingsVC.tabBarItem.image = UIImage(named: "search3.png")
let mapVC = MapViewViewController(nibName: "MapViewViewController", bundle: nil)
mapVC.tabBarItem.image = UIImage(named: "graphRe.png")
let userVC = UserProfileViewController(nibName: "UserProfileViewController", bundle: nil)
userVC.tabBarItem.image = UIImage(named: "UserRe.png")
self.tabBarController = UITabBarController()
self.tabBarController!.setViewControllers([homeVC, settingsVC,mapVC,userVC], animated: false);
let loginVC = ConstituencyViewController(nibName: "ConstituencyViewController", bundle: nil)
self.window!.rootViewController = loginVC
self.window!.makeKeyAndVisible()

Configuré el controlador tabbar en appdelegate. Pero ahora las acciones del botón y otras navegaciones no funcionan en mis controladores de visualización. ¿Cómo puedo configurar la navegación aquí? Por favor ayuda

Answer 1

Te muestro aquí paso a paso Puntos. Por favor, sigue eso-

Paso 1 - AppDelegate:

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
let loginVC = LoginViewController()
loginVC.title = "LoginViewController"
let VC3Navigation = UINavigationController(rootViewController: loginVC)
self.window! = UIWindow(frame: UIScreen.main.bounds)
self.window!.backgroundColor = UIColor.white
self.window?.rootViewController = VC3Navigation
self.window!.makeKeyAndVisible()
return true
// Override point for customization after application launch.
}

Paso 2 - Crear nuevo archivo de UITabBarController como:

 import UIKit
class TabbViewController: UITabBarController,UITabBarControllerDelegate
{
override func viewDidLoad() {
super.viewDidLoad()
delegate = self
// Do any additional setup after loading the view.
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
let VC1 = ViewController()
let VC1Navigation = UINavigationController(rootViewController: VC1)
let icon1 = UITabBarItem(title: "Title", image: UIImage(named: "someImage.png"), selectedImage: UIImage(named: "otherImage.png"))
VC1.tabBarItem = icon1
let VC2 = SecondViewController()
let VC2Navigation = UINavigationController(rootViewController: VC2)
let icon2 = UITabBarItem(title: "Title", image: UIImage(named: "someImage.png"), selectedImage: UIImage(named: "otherImage.png"))
VC2.tabBarItem = icon2
let controllers = [VC1Navigation,VC2Navigation] //array of the root view controllers displayed by the tab bar interface
self.viewControllers = controllers
}
//Delegate methods
func tabBarController(_ tabBarController: UITabBarController, shouldSelect viewController: UIViewController) -> Bool {
print("Should select viewController: /(viewController.title) ?")
return true;
}
}

Paso 3 : en ViewController, es decir, el primer elemento de la pestaña ¿Necesitas cosas?

import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
self.view.backgroundColor = #colorLiteral(red: 0.9529411793, green: 0.6862745285, blue: 0.1333333403, alpha: 1)
self.title = "item1"
print("item 1 loaded")
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}

Paso4- De manera similar SecondViewController es decir, el segundo elemento de la pestaña

import UIKit
class SecondViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
self.view.backgroundColor = #colorLiteral(red: 0.2196078449, green: 0.007843137719, blue: 0.8549019694, alpha: 1)
self.title = "item2"
print("item 1 loaded")
let button = UIButton()
button.frame = (frame: CGRect(x: self.view.frame.size.width - 60, y: 100, width: 50, height: 50))
button.backgroundColor = UIColor.red
button.setTitle("Name your Button ", for: .normal)
button.addTarget(self, action: #selector(button_Action), for: .touchUpInside)
self.view.addSubview(button)
func buttonAction(sender: UIButton!) {
print("Button tapped")
}
// Do any additional setup after loading the view.
}
func button_Action()
{
let nextViewController = TabViewController(nibName: nil, bundle: nil)
// and push it onto the ''navigation stack''
self.navigationController?.pushViewController(nextViewController, animated: true)
}}

Paso 5: su inicio de sesión VC:

import UIKit
class LoginViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
self.view.backgroundColor = #colorLiteral(red: 0.4666666687, green: 0.7647058964, blue: 0.2666666806, alpha: 1)
let button = UIButton()
button.frame = (frame: CGRect(x: self.view.frame.size.width - 60, y: 100, width: 50, height: 50))
button.backgroundColor = UIColor.red
button.setTitle("Name your Button ", for: .normal)
button.addTarget(self, action: #selector(button_Action), for: .touchUpInside)
self.view.addSubview(button)
func buttonAction(sender: UIButton!) {
print("Button tapped")
}
// Do any additional setup after loading the view.
}
func button_Action()
{
let nextViewController = TabbViewController(nibName: nil, bundle: nil)
// and push it onto the ''navigation stack''
self.navigationController?.pushViewController(nextViewController, animated: true)
}

Paso 6: otro controlador, es decir, abc, tengo el botón en SecondViewController para mostrar la navegación y la barra de pestañas para las subvistas. El botón empujará este controlador de vista.

import UIKit
class TabViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
self.view.backgroundColor = #colorLiteral(red: 0.4745098054, green: 0.8392156959, blue: 0.9764705896, alpha: 1)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}