Question

所以我想制作2个选择器视图，但我的问题是每次我调用文本字段时他们只调用一个pickerview我已经尝试替换并使2个函数具有不同的值但是当我运行它时函数不起作用这里是我的代码我认为问题是因为pickerview函数，但我不知道如何替换代码添加条件如果用户单击jenisIDTextField pickerview将显示jenisID数组，如果用户选择provinisTextField，则pickerview将显示provinsi数组

我感谢所有答案谢谢你的帮助！

@IBOutlet weak var provinsiIdentitasTextField:
@IBOutlet weak var jenisIDTextField:

func choosePicker（）{

    let pickerView = UIPickerView()

    pickerView.delegate = self


jenisIDTextField.inputView=pickerView
provinsiIdentitasTextField.inputView = pickerView

}

 let provinsi=["DKI Jakarta","Jawa Barat","Sumatra Utara"]
    let JenisID=["KTP","SIM","Passport"]
var asd = 0

func numberOfComponents(in pickerView: UIPickerView) -> Int {
    return 1
}

func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {



        return provinsi[row]

}


func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
  return provinsi.count

}

func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {


        return provinsiIdentitasTextField.text=provinsi[row]


}

Answer 1

func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int{

    if pickerView == pickerView1 {
        //pickerViewdetails
    } else if pickerView == pickerView2{
       //pickerView2details
    }}

您可以公开声明pickerview，并使用上述代码添加多个pickerview。

Answer 2

试试吧，希望它能为你效劳。

    //declare variable
        let yourArray : [String] = []

    //implement textfiled delegate
            func textFieldDidBeginEditing(_ textField: UITextField) {
                if textField == provinisTextField{
                    yourArray = ["DKI Jakarta","Jawa Barat","Sumatra Utara"]
                }else if textField == jenisIDTextField{
                    yourArray = ["KTP","SIM","Passport"]
                }
            }


//implement picker Delegate
    func numberOfComponents(in pickerView: UIPickerView) -> Int {
        return 1
    }

    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
        return provinsi[row]
    }
    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
      return provinsi.count

    }
    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
            return provinsiIdentitasTextField.text=provinsi[row]
    }

Answer 3

这是完整的实施准则：

class ViewController: UIViewController,UIPickerViewDelegate,UIPickerViewDataSource,UITextFieldDelegate {

@IBOutlet weak var textFieldOne: UITextField!
@IBOutlet weak var textFieldTwo: UITextField!

@IBOutlet weak var pickerView: UIPickerView!

var isForWhichTextField:Int = 0

var arrForDisplay:[String] = [String]()

let provinsi = ["DKI Jakarta","Jawa Barat","Sumatra Utara"]
let JenisID = ["KTP","SIM","Passport"]


override func viewDidLoad() {
    super.viewDidLoad()
    textFieldOne.inputView = pickerView
    textFieldTwo.inputView = pickerView
    arrForDisplay = provinsi
    // Do any additional setup after loading the view, typically from a nib.
}

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

func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
   return arrForDisplay.count
}

func numberOfComponents(in pickerView: UIPickerView) -> Int {
    return 1
}

func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
        return arrForDisplay[row]
}

func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
    return textFieldOne.text = arrForDisplay[row]
}

//MARK:- UITextfields Delegates

func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
    if textField == textFieldOne{
        arrForDisplay = provinsi
        pickerView.reloadAllComponents()
    }else{
        arrForDisplay = JenisID
        pickerView.reloadAllComponents()
    }
    return true
}}

希望这有帮助。

Answer 4

@ Jaydip答案的一个小修正。

 func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
            return provinsiIdentitasTextField.text=provinsi[row]
    }

这总是只为您选择的文本字段赋予provinsiIdentitasTextField文本字段的值。所以创建一个新的文本字段并将选定的文本字段分配给

      var selectedField: UItextField?

     //implement textfiled delegate
                func textFieldDidBeginEditing(_ textField: UITextField) {

                    if textField == provinisTextField{
                        yourArray = ["DKI Jakarta","Jawa Barat","Sumatra Utara"]
                    }else if textField == jenisIDTextField{
                        yourArray = ["KTP","SIM","Passport"]
                    }
              selectedField = textField

            pickerView.reloadAllComponents()
                }

///分配选定的文本字段

 func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
                return selectedField!.text= yourArray[row]
        }

如何在swift中制作2个或更多的选择器视图

4 个答案: