UIViewController with multiple UIPickerViews and arrays - ios

Question

I am trying to get two UITextFields to show a UIPickerView with different arrays when pressed.
Currently, I have the following UIPickerView show the array pickOption when pickerTextField is pressed.
How can I have my TextField pickerTextField2 show the array pickOptions2 when pressed, all on the same UIViewController.
I understand I have to
Code So far:
import UIKit
class ViewController: UIViewController, UIPickerViewDataSource, UIPickerViewDelegate {
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 1
}
#IBOutlet weak var pickerTextField: UITextField!
#IBOutlet weak var pickerTextField2: UITextField!
var pickOption = ["one", "two", "three", "four", "five"]
var pickOption2 = ["two", "four", "six", "eight", "ten"]
override func viewDidLoad() {
super.viewDidLoad()
let pickerView = UIPickerView()
pickerView.delegate = self
pickerTextField.inputView = pickerView
// 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 numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return pickOption.count
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
return pickOption[row]
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
pickerTextField.text = pickOption[row]
}
}

Answer 1

Assign tag to your IBOutlet TextField and also take one more textfield variable for assigning current selected textfield.
I Write example here based on your code.Using this logic you can implement picker view functionality with many more textfield.
import UIKit
class ViewController: UIViewController, UIPickerViewDelegate, UIPickerViewDataSource, UITextFieldDelegate {
#IBOutlet weak var pickerTextField: UITextField!
#IBOutlet weak var pickerTextField2: UITextField!
var textField1: UITextField?
var pickOption = ["one", "two", "three", "four", "five"]
var pickOption2 = ["two", "four", "six", "eight", "ten"]
let pickerView = UIPickerView()
func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
textField1 = textField
pickerView.reloadAllComponents()
return true
}
override func viewDidLoad() {
super.viewDidLoad()
pickerView.delegate = self
pickerTextField.delegate = self
pickerTextField2.delegate = self
pickerTextField.inputView = pickerView
pickerTextField2.inputView = pickerView
}
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
if textField1?.tag == 10 {
return pickOption.count
}
return pickOption2.count
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
if textField1?.tag == 10 {
return pickOption[row]
}
return pickOption2[row]
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
if textField1?.tag == 10 {
textField1?.text = pickOption[row]
return
}
textField1?.text = pickOption2[row]
}
}