multiple UIDatePicker one uitextfield - ios

Question

In my ViewController there are several UiTextfield.
I intend to use a single UIDatePicker that is expected to respond accordingly.
my code only responds to event generated by second textfield and not the first one.
I just need to determine which UITextField has generated the event...
import UIKit
class ViewController: UIViewController , UITextFieldDelegate {
var datePicker = UIDatePicker()
#IBOutlet weak var tvDueDate: UITextField!
#IBOutlet weak var tvOtherDate: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
//setupDatePicker()
self.tvDueDate.tag = 0
self.tvOtherDate.tag = 1
//setupDatePicker(textField)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func textFieldDidEndEditing(textField: UITextField) {
setupDatePicker(textField)
}
func textFieldDidBeginEditing(textField: UITextField) {
setupDatePicker(textField)
}
func setupDatePicker(text: UITextField) {
// Sets up the "button"
//tvDueDate.text = "Pick a due date"
//tvDueDate.textAlignment = .Center
// Removes the indicator of the UITextField
//tvDueDate.tintColor = UIColor.clearColor()
// Specifies intput type
datePicker.datePickerMode = .Date
// Creates the toolbar
let toolBar = UIToolbar()
toolBar.barStyle = .Default
toolBar.translucent = true
toolBar.tintColor = UIColor(red: 92/255, green: 216/255, blue: 255/255, alpha: 1)
toolBar.sizeToFit()
// Adds the buttons
var doneButton = UIBarButtonItem(title: "Done", style: .Plain, target: self, action: "doneClick")
var spaceButton = UIBarButtonItem(barButtonSystemItem: .FlexibleSpace, target: nil, action: nil)
var cancelButton = UIBarButtonItem(title: "Cancel", style: .Plain, target: self, action: "cancelClick")
toolBar.setItems([cancelButton, spaceButton, doneButton], animated: false)
toolBar.userInteractionEnabled = true
// Adds the toolbar to the view
if text.tag == 0{
self.tvDueDate.inputView = datePicker
self.tvDueDate.inputAccessoryView = toolBar
}
else
{
self.tvOtherDate.inputView = datePicker
self.tvOtherDate.inputAccessoryView = toolBar
}
}
func doneClick() {
var dateFormatter = NSDateFormatter()
//dateFormatter.dateFormat = "dd-MM-yyyy"
dateFormatter.dateStyle = .ShortStyle
if tvDueDate.isFirstResponder(){
tvDueDate.text = dateFormatter.stringFromDate(datePicker.date)
tvDueDate.resignFirstResponder()
}else{
tvOtherDate.text = dateFormatter.stringFromDate(datePicker.date)
tvOtherDate.resignFirstResponder()
}
}
func cancelClick() {
if tvDueDate.isFirstResponder(){
tvDueDate.resignFirstResponder()
}else{
tvOtherDate.resignFirstResponder()
}
}
}

Answer 1

Give unique tags to your UITextFields and use UITextField delegates.
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
//setupDatePicker()
self.tvDueDate.tag = 0
self.tvOtherDate.tag = 1
self.tvDueDate.delegate = self
self.tvOtherDate.delegate = self
//setupDatePicker(textField)
}
// UITextField Delegates
func textFieldDidBeginEditing(textField: UITextField) {
println("TextField did begin editing method called")
if textField.tag == 0
..........
if textField.tag == 2
....
}
func textFieldDidEndEditing(textField: UITextField) {
println("TextField did end editing method called")
}
func textFieldShouldBeginEditing(textField: UITextField) -> Bool {
println("TextField should begin editing method called")
return true;
}

Answer 2

You are calling
setupDatePicker()
From viewDidLoad and your code is
if tvDueDate.isFirstResponder(){
tvDueDate.inputView = datePicker
tvDueDate.inputAccessoryView = toolBar
}
else
{
tvOtherDate.inputView = datePicker
tvOtherDate.inputAccessoryView = toolBar
}
adds picker as inputAccessoryView . As at the point of viewDidLoad no text field is FirstResponder that's why only your else part is excited and its only added to tvOtherDate field.
I would recommend to call it from the textfield delegate method (will begin editing or didbegineditting) or call it on tap. And to check from which it is called also pass the textfield or you can use tag.

Answer 3

Adding Delegates and tags to my UiTextField helped me.......
import UIKit
class ViewController: UIViewController , UITextFieldDelegate {
var datePicker = UIDatePicker()
#IBOutlet weak var tvDueDate: UITextField!
#IBOutlet weak var tvOtherDate: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
//setupDatePicker()
self.tvDueDate.tag = 0
self.tvOtherDate.tag = 1
//setupDatePicker(textField)
self.tvDueDate.delegate = self
self.tvOtherDate.delegate = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func textFieldDidEndEditing(textField: UITextField) {
setupDatePicker(textField)
}
func textFieldDidBeginEditing(textField: UITextField) {
setupDatePicker(textField)
}
func setupDatePicker(text: UITextField) {
// Sets up the "button"
//tvDueDate.text = "Pick a due date"
//tvDueDate.textAlignment = .Center
// Removes the indicator of the UITextField
//tvDueDate.tintColor = UIColor.clearColor()
// Specifies intput type
datePicker.datePickerMode = .Date
// Creates the toolbar
let toolBar = UIToolbar()
toolBar.barStyle = .Default
toolBar.translucent = true
toolBar.tintColor = UIColor(red: 92/255, green: 216/255, blue: 255/255, alpha: 1)
toolBar.sizeToFit()
// Adds the buttons
var doneButton = UIBarButtonItem(title: "Done", style: .Plain, target: self, action: "doneClick")
var spaceButton = UIBarButtonItem(barButtonSystemItem: .FlexibleSpace, target: nil, action: nil)
var cancelButton = UIBarButtonItem(title: "Cancel", style: .Plain, target: self, action: "cancelClick")
toolBar.setItems([cancelButton, spaceButton, doneButton], animated: false)
toolBar.userInteractionEnabled = true
// Adds the toolbar to the view
if text.tag == 0{
self.tvDueDate.inputView = datePicker
self.tvDueDate.inputAccessoryView = toolBar
}
else
{
self.tvOtherDate.inputView = datePicker
self.tvOtherDate.inputAccessoryView = toolBar
}
}
func doneClick() {
var dateFormatter = NSDateFormatter()
//dateFormatter.dateFormat = "dd-MM-yyyy"
dateFormatter.dateStyle = .ShortStyle
if tvDueDate.isFirstResponder(){
tvDueDate.text = dateFormatter.stringFromDate(datePicker.date)
tvDueDate.resignFirstResponder()
}else{
tvOtherDate.text = dateFormatter.stringFromDate(datePicker.date)
tvOtherDate.resignFirstResponder()
}
}
func cancelClick() {
if tvDueDate.isFirstResponder(){
tvDueDate.resignFirstResponder()
}else{
tvOtherDate.resignFirstResponder()
}
}
}