通過UISegmentControl將數據傳遞給childViewControllers

我有一個父類A，它有兩個容器B和C以及兩個相應的uiviewcontrollers。我通過使用UISegmentContol切換兩個控制器。父類有一個對象「變量」，我想傳遞給UiViewControllers B和C.通過UISegmentControl將數據傳遞給childViewControllers

我的DouBt：我該如何從父類共享一個對象到兩個子類？我如何在父類中創建我的子類的引用？

class A: UIViewController { 

@IBOutlet weak var segment: UISegmentedControl! 
@IBOutlet var containerSearch: UIView! 
@IBOutlet var containerAdvancedSearch: UIView! 
var variables: Variables? 

override func viewDidLoad() { 
    super.viewDidLoad() 
    let a = variables?.bankNameLong 
    print("from " + a! + "") 
} 

@IBAction func actionSwitchSegments(sender: AnyObject) { 
    if sender.selectedSegmentIndex == 0 { 
     UIView.animateWithDuration(0.5, animations: { 
      self.containerChangePassword.alpha = 1 
      self.containerAbout.alpha = 0 
     }) 
    } else { 
     UIView.animateWithDuration(0.5, animations: { 
      self.containerChangePassword.alpha = 0 
      self.containerAbout.alpha = 1 
     }) 
    } 

} 



    if segue.identifier == "segSearch"{ 
     let newViewController: vConSearch = segue.destinationViewController as! vConSearch 
     newViewController.Variables = self.Variables 
    }else if segue.identifier == "segAdvancedSearch"{ 
     let newViewController: vConAdvancedSearch = segue.destinationViewController as! vConAdvancedSearch 
     newViewController.Variables = self.Variables 
    }

我試過使用segue，但它只適用於單個子控制器。但通過做segue它不會創建一個新的實例，每次我點擊UiSegmentControl。

來源

2016-03-28 Cloy

嘿@Darth Vader你能幫忙嗎？ – Cloy

你在哪裏打電話performSegueWithIdentifier ?? – Ujjwal

從父類vConSettings – Cloy

必須某處編寫代碼瀏覽到所需的ViewController

self.performSegueWithIdentifier("segSearch", sender: sender)

，然後委託

override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) { 

    if segue.identifier == "segSearch"{ 
     let newViewController: vConSearch = segue.destinationViewController as! vConSearch 
     newViewController.Variables = self.Variables 
    }else if segue.identifier == "segAdvancedSearch"{ 
     let newViewController: vConAdvancedSearch = segue.destinationViewController as! vConAdvancedSearch 
     newViewController.Variables = self.Variables 
    } 
}

也把一些斷點調試代碼，如果它不工作，檢查是否調用函數和變量是否正確分配。

來源

2016-03-29 05:54:24 Ujjwal

通過UISegmentControl將數據傳遞給childViewControllers

回答

相關問題