如何使用swift將數據從viewcontroller A傳遞到另一個viewcontroller 3

我使用instantiateViewControllerWithIdentifier(identifier: String)函數從ViewControllerA創建ViewControllerB的實例。如何使用swift將數據從viewcontroller A傳遞到另一個viewcontroller 3

let storyboard = UIStoryboard(name: "Main", bundle: nil) 
let vc = storyboard.instantiateViewControllerWithIdentifier("vcB") as VCB; 
rootController!.presentViewController(vc, animated: true, completion: nil) 


class VCB: UIViewController { 

required init?(coder aDecoder: NSCoder){ 
    super.init(coder: aDecoder) 
    } 

}

我想訪問我已經在我的ViewControllerB中傳遞的值我怎麼能實現這一點。

我已經通過了 Passing Data between View Controllers鏈接，但在目標c中的答案。

來源

2016-08-11 Ashok R

有很多方法，你可以從一個視圖控制器將數據傳遞到另一個視圖 - 控制喜歡使用NSNotification中心，委託，PrepareforSegue，並使用對propertyList –

您鏈接的問題有很多答案，斯威夫特也。 – rmaddy

你只可以在你的VCB的viewController聲明var和注入數據到這個屬性

let storyboard = UIStoryboard(name: "Main", bundle: nil) 
let vc = storyboard.instantiateViewControllerWithIdentifier("vcB") as VCB; 

vc.yourData = SOME_DATA 

rootController!.presentViewController(vc, animated: true, completion: nil) 


class VCB: UIViewController { 

var yourData: AnyObject? 

required init?(coder aDecoder: NSCoder){ 
    super.init(coder: aDecoder) 
    } 

}

來源

2016-08-11 06:18:35 iSashok

我必須在viewcontrollerA中導入我的viewcontrollerB嗎？ –

@Ashok不，你不需要。 – Rishab

不，你不需要 – iSashok

您可以嘗試

import UIKit 
class ViewControllerA: UIViewController { 

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

@IBAction func passDataAction(sender: AnyObject) { 
    let storyboard = UIStoryboard(name: "Main", bundle: nil) 
    let vc = storyboard.instantiateViewControllerWithIdentifier("UIViewControllerB") as! ViewControllerB; 
    vc.dataFromOtherView = "The data is passed" 
    self.presentViewController(vc, animated: true, completion: nil) 
} 

override func didReceiveMemoryWarning() { 
    super.didReceiveMemoryWarning() 
    // Dispose of any resources that can be recreated. 
} 

}

而其他類

import UIKit 
class ViewControllerB: UIViewController { 

var dataFromOtherView: String = "" 

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

    print(dataFromOtherView) 
} 

override func didReceiveMemoryWarning() { 
    super.didReceiveMemoryWarning() 
    // Dispose of any resources that can be recreated. 
} 


}

來源

2016-08-11 07:53:28 Sofeda

從哪裏我必須調用passDataAction方法？ –

剛使用此代碼從一個視圖con發送數據troller到anotherview控制器

let storyboard = UIStoryboard(name: "Main", bundle: nil) 
let vc=storyboard.instantiateViewControllerWithIdentifier("secondView") as! ViewControllerB; 
vc.dataFromOtherView = "The data is passed" 
self.presentViewController(vc, animated: true, completion: nil)

來源

2017-03-26 17:01:05

如何使用swift將數據從viewcontroller A傳遞到另一個viewcontroller 3

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