不同的ViewController，如果不同的selectedSegmentIndex

Question

我的代码是

@IBAction func pressedButton(_ sender: Any) {  
        self.resignFirstResponder()
        if mySegment.selectedSegmentIndex == 0 {

如果我在 ViewControllerA 上选择了段＃0（并按下我的按钮），然后转到 ViewControllerB ，如果是段＃1，那么我需要 ViewControllerC ，如果是＃2段，那么 ViewControllerD 。
有可能吗？

Answer 1

是的，您可以在IB中为他们设置ID，如果您使用UINavigationController或现在

，则推送

if mySegment.selectedSegmentIndex == 0 {

     let so = self.storyboard?.instantiateViewController(withIdentifier: "AID")

     self.navigationController?.pushViewController(so!, animated: true)
}
else  if mySegment.selectedSegmentIndex == 1 {

    let so = self.storyboard?.instantiateViewController(withIdentifier: "BID")

    self.navigationController?.pushViewController(so!, animated: true)
}

Answer 2

夫特：

/usr/share/cumulocity-rpi-agent/cfg/cumulocity.properties

ObjC：

    if(sender.selectedSegmentIndex==0)
     {

       let lvc = self.storyboard?.instantiateViewController(withIdentifier: "cellVC") as! YourViewController1
       self.navigationController?.pushViewController(lvc!, animated: true)
     }

   else 
     {
        let vc = self.storyboard?.instantiateViewController(withIdentifier: "cellVC1") as! YourViewController2
        self.navigationController?.pushViewController(vc!, animated: true)
     }

Answer 3

您应该为通用解决方案创建枚举，而不是使用if else条件。

像这样创建ViewController的枚举，

enum CurrentViewController : Int {
    case ViewControllerB
    case ViewControllerC
    case ViewControllerD

    var description : String {
        switch self {
            case .ViewControllerB: return "ViewControllerB"
            case .ViewControllerC: return "ViewControllerC"
            case .ViewControllerD: return "ViewControllerD"
        }
    }
}

现在转到适当的控制器，你可以这样做，

let currentViewController = CurrentViewController(rawValue: mySegment.selectedSegmentIndex)
let viewController = self.storyboard?.instantiateViewController(withIdentifier: (currentViewController?.description)!)
self.navigationController?.pushViewController(viewController!, animated: true)

以上是所有人的通用解决方案。如果有任何疑问，请告诉我。

Answer 4

1. 首先为每个viewController连接一个segue。 control -drag从ViewControllerA顶部的viewController图标到另一个ViewController并选择segue类型。

   

2. 单击viewControllers之间的segue箭头，并在右侧的 Attributes Inspector 中设置标识符。

3. 为每个ViewControllerB，ViewControllerC和ViewControllerD重复步骤1和2，为其分段提供唯一ID，例如"segueToB"，"segueToC"和"segueToD"。

4. 在按钮代码中，执行以下操作：

   let idx = mySegment.selectedSegmentIndex
   let segueID = ["segueToB", "segueToC", "segueToD"][idx]
   self.performSegue(withIdentifier: segueID, sender: self)
   

连接两个segues的演示：

Answer 5

可能，只需从StoryBoard

设置ViewController的ID即可

if mySegment.selectedSegmentIndex == 0 {

 let vcB = self.storyboard?.instantiateViewController(withIdentifier: "VCB")
 self.navigationController?.pushViewController(vcB, animated: true)

}else  if mySegment.selectedSegmentIndex == 1 {

let vcC = self.storyboard?.instantiateViewController(withIdentifier: "VCB")
self.navigationController?.pushViewController(vcC, animated: true)

}else  if mySegment.selectedSegmentIndex == 2 {

let vcD = self.storyboard?.instantiateViewController(withIdentifier: "VCD")
self.navigationController?.pushViewController(vcD, animated: true)

}