Multiple Custom UIPickerViews in the same UIView in swift - ios

Question

Im trying to have two different pickerViews on the same viewController and let them represent different data. I have tried a different ways to do this, but both picker views showing same Data, but can't put it all together. Any help would be awesome!
here is my code:
#IBOutlet weak var Eventtype: UITextField!
let pickerView = UIPickerView()
var Eventstype = ["Birthday" , "Marriege" , "Get together", "Conference"]
#IBOutlet weak var datepickertxt: UITextField!
var datepicker = UIDatePicker()
#IBOutlet weak var Duration: UITextField!
let duration = UIPickerView()
var Durations = ["6-8","1-5","7-9","10-12"]
override func viewDidLoad() {
super.viewDidLoad()
createDatePicker()
pickerView.delegate = self
pickerView.dataSource = self
duration.delegate = self
duration.dataSource = self
Eventtype.inputView = pickerView
Duration.inputView = duration
// Do any additional setup after loading the view.
}
////For Event Picker view
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
if (pickerView.tag == 0) {
//pickerView1
return Eventstype.count
} else if (duration.tag == 1){
//pickerView2
return Durations.count
}
return 1
//return DurationTxt.count
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
if (pickerView.tag == 0) {
return Eventstype[row]
} else if (duration.tag == 1){
return Durations[row]
}
return ""
}
//return DurationTxt[row]
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
if (pickerView.tag == 0) {
Eventtype.text = Eventstype[row]
self.view.endEditing(false)
}else if (duration.tag == 1){
Duration.text = Durations[row]
self.view.endEditing(true)
}
}

Answer 1

#IBOutlet weak var Eventtype: UITextField!
let pickerView = UIPickerView()
var Eventstype = ["Birthday" , "Marriege" , "Get together", "Conference"]
#IBOutlet weak var datepickertxt: UITextField!
var datepicker = UIDatePicker()
#IBOutlet weak var Duration: UITextField!
let duration = UIPickerView()
var Durations = ["6-8","1-5","7-9","10-12"]
override func viewDidLoad() {
super.viewDidLoad()
createDatePicker()
pickerView.delegate = self
pickerView.dataSource = self
duration.delegate = self
duration.dataSource = self
Eventtype.inputView = pickerView
Duration.inputView = duration
pickerView.tag = 0
duration.tag = 1
// Do any additional setup after loading the view.
}
////For Event Picker view
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
if (pickerView.tag == 0) {
//pickerView1
return Eventstype.count
} else if (duration.tag == 1){
//pickerView2
return Durations.count
}
return 1
//return DurationTxt.count
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
if (pickerView.tag == 0) {
return Eventstype[row]
} else if (duration.tag == 1){
return Durations[row]
}
return ""
}
//return DurationTxt[row]
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
if (pickerView.tag == 0) {
Eventtype.text = Eventstype[row]
self.view.endEditing(false)
}else if (duration.tag == 1){
Duration.text = Durations[row]
self.view.endEditing(true)
}
}
This is done by tag or else yo can check in delegate like
if pickerView == duration

Answer 2

Set the tags for pickerview in viewDidLoad as shown below,
pickerView.tag = 0
duration.tag = 1

Answer 3

class ViewController: UIViewController {
#IBOutlet var txtDuration: UITextField!
#IBOutlet var txtEventType: UITextField!
var pickerView = UIPickerView()
var arrEventType : [String] = []
var arrDuration : [String] = []
var currentTextField : UITextField?
override func viewDidLoad() {
super.viewDidLoad()
arrEventType = ["Birthday" , "Marriage" , "Get together", "Conference"]
arrDuration = ["6-8","1-5","7-9","10-12"]
}
}
extension ViewController : UIPickerViewDelegate , UIPickerViewDataSource {
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 1
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
if currentTextField == txtEventType {
return arrEventType.count
} else if currentTextField == txtDuration {
return arrDuration.count
} else {
return 0
}
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
if currentTextField == txtEventType {
return arrEventType[row]
} else if currentTextField == txtDuration {
return arrDuration[row]
} else {
return ""
}
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
if currentTextField == txtEventType {
txtEventType.text = arrEventType[row]
} else if currentTextField == txtDuration {
txtDuration.text = arrDuration[row]
}
}
}
extension ViewController : UITextFieldDelegate {
func textFieldDidBeginEditing(_ textField: UITextField) {
self.pickerView.delegate = self
self.pickerView.dataSource = self
currentTextField = textField
if currentTextField == txtEventType {
currentTextField?.inputView = pickerView
} else if currentTextField == txtDuration {
currentTextField?.inputView = pickerView
}
}
}
Above lines of code may solve your issue with just one UIPickerView and without tags