Ios 如何使用swift 3将数据从viewcontroller A传递到另一个viewcontroller B

我正在使用

instanceviewcontrollerwhiteIdentifier（标识符：String）

函数从ViewControllerA创建ViewControllerB的实例

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)
  }

}

我想访问我在ViewControllerB中传递的值如何实现这一点

我已经经历过了

---

链接但不链接目标c中的答案。

您只需在

VCB

viewController中声明

var

，并将数据注入此属性即可

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)
  }

}

---

您只需在

VCB

viewController中声明

var

，并将数据注入此属性

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)
  }

}

你可以试试

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.
}

}

另一班呢

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.
}


}

你可以试试

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.
}

}

另一班呢

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.
}


}

---

只需使用此代码将数据从一个视图控制器发送到另一个视图控制器

   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)

---

只需使用此代码将数据从一个视图控制器发送到另一个视图控制器

   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)

---

我必须在viewcontrollerA中导入我的viewcontrollerB吗？@Ashok不需要。类型为“UIViewController”的值没有memebr“yourData”错误我有两个文件，一个是viewcontrollerA.swift，另一个是viewcontrollerB.swift我必须在viewcontrollerA中导入我的viewcontrollerB吗？@Ashok不需要。类型值“UIViewController”没有memebr“yourData”错误我有两个文件，一个是viewcontrollerA.swift，另一个是viewcontrollerB.swift有很多方法可以将数据从一个视图控制器传递到另一个视图控制器，如使用NSNotification center、委派、PrepareforSegue、，使用PropertyList您链接的问题也有很多快速的答案。有很多方法可以将数据从一个视图控制器传递到另一个视图控制器，如使用NSNotification center、委派、PrepareForegue、，使用PropertyList你链接的问题也有很多快速的答案。从哪里我必须调用passDataAction方法？从哪里我必须调用passDataAction方法？