swift - 我想将数据(UILabel)传递给另一个没有按钮的 View Controller 中的UILabel

Question

开关视图控制器

@IBOutlet weak var Label1: UILabel!
@IBOutlet weak var Label2: UILabel!
@IBOutlet weak var Label3: UILabel!

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
}

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    let DestViewController : Daily = segue.destination as! Daily
    DestViewController.labeltext1 = Label1.text!
    DestViewController.labeltext2 = Label2.text!
    DestViewController.labeltext3 = Label3.text!

然后：每日（DestinationViewController）

@IBOutlet weak var informationLabel: UILabel!

var labeltext1 = String()
var labeltext2 = String()
var labeltext3 = String()

override func viewDidLoad() {
    super.viewDidLoad()

    informationLabel.text = labeltext1
    informationLabel.text = labeltext2
    informationLabel.text = labeltext3

}//

func lineChartView(_ lineChartView: JBLineChartView!, didSelectLineAt lineIndex: UInt, horizontalIndex: UInt) {
    if (lineIndex == 0) {
        let Data = shakeData[Int(horizontalIndex)]
        let key_t = chartlegend[Int(horizontalIndex)]
        let label1 = String()
        informationLabel.text = "\(label1)\(key_t): \(Data)"


    } else if (lineIndex == 1) {
        let Data = swipeUpData[Int(horizontalIndex)]
        let key_t = chartlegend[Int(horizontalIndex)]
        informationLabel.text = "()\(key_t): \(Data)"

    } else if (lineIndex == 2) {
        let Data = swipeRightData[Int(horizontalIndex)]
        let key_t = chartlegend[Int(horizontalIndex)]
        informationLabel.text =  "()\(key_t): \(Data)"
    }
}

如何在没有按钮的情况下将数据（标签）从Swipe View Controller传递到Daily VC？
如果informationLabel只有一个，如何在日常VC中编写代码？
请帮帮我！!!

Answer 1

确保设置了segue标识符，设置之后编辑代码：

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

    if (segue.identifier == "YourSegueIdentifier") 
    {
        let DestViewController : Daily = segue.destination as! Daily
        DestViewController.labeltext1 = Label1.text!
        DestViewController.labeltext2 = Label2.text!
        DestViewController.labeltext3 = Label3.text!
    }
}