MVC 在文本字段/标签中显示来自 PickerView 的值的问题

问题描述

我的 Model 文件：

起初我的TimeModel

import Foundation
class TimeModel {
    var hrs = ""
    var min = ""
    var sec = ""
    var time = ""
    
    init(hrs: String,min: String,sec: String,time: String) {
        self.hrs = hrs
        self.min = min
        self.sec = sec
        self.time = time
    }
}

然后我有一个 data 文件：

import Foundation

class Data {
    
    class func getDataTime() -> [TimeModel] {
        var dataTime = [TimeModel]()
               
        dataTime.append(TimeModel(hrs: "0",min: "0",sec: "0,0",time: "Custom Time"))
        dataTime.append(TimeModel(hrs: "0",00013",time: "1/8000"))
        dataTime.append(TimeModel(hrs: "0",00016",time: "1/6400"))
        dataTime.append(TimeModel(hrs: "0",0002",time: "1/5000"))
        dataTime.append(TimeModel(hrs: "0",00025",time: "1/4000"))
        dataTime.append(TimeModel(hrs: "0",00031",time: "1/3200"))
        dataTime.append(TimeModel(hrs: "0",0004",time: "1/2500"))
        dataTime.append(TimeModel(hrs: "0",0005",time: "1/2000"))
        dataTime.append(TimeModel(hrs: "0",00062",time: "1/1600"))
        dataTime.append(TimeModel(hrs: "0",0008",time: "1/1250"))
        dataTime.append(TimeModel(hrs: "0",001",time: "1/1000"))
        dataTime.append(TimeModel(hrs: "0",00125",time: "1/800"))
        dataTime.append(TimeModel(hrs: "0",00156",time: "1/640"))
        dataTime.append(TimeModel(hrs: "0",002",time: "1/500"))
        dataTime.append(TimeModel(hrs: "0",0025",time: "1/400"))
        dataTime.append(TimeModel(hrs: "0",00313",time: "1/320"))
        dataTime.append(TimeModel(hrs: "0",004",time: "1/250"))
        dataTime.append(TimeModel(hrs: "0",005",time: "1/200"))
        return dataTime
    }
        
}

这是我的 PickerView 代码：

    import UIKit

class TimeModelPicker: UIView,UIPickerViewDataSource,UIPickerViewDelegate {
    
    var timeModelData = [TimeModel]()
   

        func numberOfComponents(in pickerView: UIPickerView) -> Int {
            return 1
        }
        
        func pickerView(_ pickerView: UIPickerView,numberOfRowsInComponent component: Int) -> Int {
            return timeModelData.count
        }

        func pickerView(_ pickerView: UIPickerView,viewForRow row: Int,forComponent component: Int,reusing view: UIView?) -> UIView {
        
            let pickerLabel = UILabel()
            pickerLabel.textColor = UIColor.white
            pickerLabel.text = timeModelData[row].time
            pickerLabel.font = UIFont.boldSystemFont(ofSize: 25)
            pickerLabel.textAlignment = NSTextAlignment.center
            return pickerLabel
        }
    
        func pickerView(_ pickerView: UIPickerView,didSelectRow row: Int,inComponent component: Int) {
                 
        let defaults = UserDefaults.standard
            defaults.set(row,forKey: "saveTimePicker")
        }
}

最后是来自我的 VewController 的代码：

    import UIKit

class PickerViewTimeController: UIViewController {

    @IBOutlet weak var pickerViewTime: UIPickerView!
    @IBOutlet weak var pickerViewLabel: UILabel!
    @IBOutlet weak var okButton: UIButton!
    @IBOutlet weak var timeStd: UITextField!
    @IBOutlet weak var timeMin: UITextField!
    @IBOutlet weak var timeSec: UITextField!
        
    var dataPickerViewTime: TimeModelPicker!
    
    
        
//unwind / ok Button
    @IBAction func unwindtoCalculate(_ sender: UIStoryboardSegue){
        dismiss(animated: true,completion: nil)
    }
 
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        dataPickerViewTime = TimeModelPicker()
        dataPickerViewTime.timeModelData = Data.getDataTime()
        pickerViewTime.delegate = dataPickerViewTime
        pickerViewTime.dataSource = dataPickerViewTime
        
        if let selectedRow = UserDefaults.standard.object(forKey: "saveTimePicker") as? Int {
            pickerViewTime.selectRow(selectedRow,inComponent: 0,animated: true)
        }
        
        // how can i get the output from the PickerView "didSelectRow" in this textfields / label ?
        pickerViewLabel.text = "time"
        timeStd.text = "h"
        timeMin.text = "min"
        timeSec.text = "sec"
    }

}

如何在文本字段和标签中显示来自 time h min 和 sec 的值？

解决方法

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