快速定制segue条件

概述我正在尝试根据用户登录信息是否正确来有条件地执行segue. 我从登录View Controller到新的导航控制器有一个模态segue. 我已经尝试过几乎所有我遇到过的建议,似乎没有任何工作.使用Sift和Xcode 6. import UIKitimport AudioToolboxclass ViewController: UIViewController { @IBOutl 我正在尝试根据用户登录信息是否正确来有条件地执行segue.

我从登录VIEw Controller到新的导航控制器有一个模态segue.

我已经尝试过几乎所有我遇到过的建议,似乎没有任何工作.使用Sift和Xcode 6.

import UIKitimport AudioToolBoxclass VIEwController: UIVIEwController {   @IBOutlet weak var usernameTextFIEld: UITextFIEld!   @IBOutlet weak var passwordTextFIEld: UITextFIEld!   @IBOutlet weak var incorrectCredentialLabel: UILabel!   @IBAction func loginAction(sender: UIbutton) {       var username = "test"       var password = "code"       println("Username: " + usernameTextFIEld.text)       println("Password: " + passwordTextFIEld.text)       if usernameTextFIEld.text == username &&          passwordTextFIEld.text == password {          usernameTextFIEld.resignFirstResponder()          passwordTextFIEld.resignFirstResponder()          println("Login Status: success")       self.shouldPerformSegueWithIDentifIEr("loginSegue",sender: nil)    } else {         usernameTextFIEld.resignFirstResponder()         passwordTextFIEld.resignFirstResponder()         AudioServicesPlayAlertSound(1352)        /*AudioServicesPlayAlertSound(kSystemSoundID_Vibrate)*/         incorrectCredentialLabel.text = "username or password is incorrect"         incorrectCredentialLabel.textcolor = UIcolor.redcolor()         println("Login Status: Failed")    }} 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. }}

解决方法 这对我有用.两个UITextFIElds和一个UIbutton以及从VC到VC2的模态segue：

import UIKitclass VIEwController: UIVIEwController,UITextFIEldDelegate {    let username = "John"    let passCode = "123"    @IBOutlet weak var name: UITextFIEld!    @IBOutlet weak var Pass: UITextFIEld!    @IBAction func tapbutton(sender: UIbutton) {        if self.name.text == "John" && self.Pass.text == "123" {         performSegueWithIDentifIEr("nextVIEw",sender: self)        }    }    //VIEwController lifecycle    overrIDe func vIEwDIDLoad() {        super.vIEwDIDLoad()        self.name.delegate = self        self.Pass.delegate = self    }}

总结

以上是内存溢出为你收集整理的快速定制segue条件全部内容，希望文章能够帮你解决快速定制segue条件所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。