ToolBar done button action does not work on UIDatePicker - ios

Question

I set done and cancel button on my UIDatePicker within a toolbar programmatically. However, I could not detect click actions for done and cancel buttons. I could not find the cause of the issue. Here is my code:
#IBAction func btnDueDate_Click(sender: UIButton)
{
var toolBar = UIToolbar()
toolBar.barStyle = UIBarStyle.Default
toolBar.translucent = true
toolBar.tintColor = UIColor(red: 92/255, green: 216/255, blue: 255/255, alpha: 1)
toolBar.sizeToFit()
var doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Plain, target: self, action: Selector("Done_Click"))
var spaceButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)
var cancelButton = UIBarButtonItem(title: "Cancel", style: UIBarButtonItemStyle.Plain, target: self, action: Selector("Cancel_Click"))
toolBar.setItems([cancelButton, spaceButton, doneButton], animated: false)
toolBar.userInteractionEnabled = true
self.datePicker.addSubview(toolBar)
self.datePicker.hidden = false
}
func Done_Click()
{
var dateFormatter = NSDateFormatter()
dateFormatter.dateFormat = "dd-MM-yyyy"
self.btnDueDate.setTitle(dateFormatter.stringFromDate(self.datePicker.date), forState: UIControlState.Normal)
}
func Cancel_Click()
{
self.datePicker.hidden = true
}
Could you help me about what am I doing wrong ?
Thank you for your answers
Best regards
Solved: Thank u for your help, I've solved the problem by editting the code line below:
self.view.addSubview(toolBar)
When I add the toolbar as a subview of self.view, not as a subview of self.datePicker, It works fine.

Answer 1

The reason why your code isn't working is because the UIToolbar is overlapping the UIDatePicker and the picker is receiving all of the inputs.
I would suggest for you to use the property inputAccessoryView and assign the toolbar to this, but unfortunately, this is a read-only property for both the UIButton and UIDatePicker
A work-around which many people are using is to use a UITextField and set the inputView to a UIDatePicker and the inputAccessoryView to a UIToolbar. I've made a small example underneath that you can try out.
//
// ViewController.swift
// DatePickerWithToolbar
//
// Created by Stefan Veis Pennerup on 10/06/15.
// Copyright (c) 2015 Kumuluzz. All rights reserved.
//
import UIKit
class ViewController: UIViewController {
#IBOutlet weak var tvDueDate: UITextField!
var datePicker = UIDatePicker()
override func viewDidLoad() {
setupDatePicker()
}
func setupDatePicker() {
// 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
tvDueDate.inputView = datePicker
tvDueDate.inputAccessoryView = toolBar
}
func doneClick() {
var dateFormatter = NSDateFormatter()
//dateFormatter.dateFormat = "dd-MM-yyyy"
dateFormatter.dateStyle = .ShortStyle
tvDueDate.text = dateFormatter.stringFromDate(datePicker.date)
tvDueDate.resignFirstResponder()
}
func cancelClick() {
tvDueDate.resignFirstResponder()
}
}

Answer 2

dateFormatter.dateStyle = .ShortStyle
dateFormatter.dateFormat = "dd-MM-yyyy"
Note : to function dateformat under datesyle

Answer 3

Showing UIDatePicker when UIButton pressed with Done button from this answer
var datePickerContainer = UIView()
let timePicker = UIDatePicker()
#IBAction func openTimePicker(sender: UIButton) {
datePickerContainer.frame = CGRect(x: 0.0, y: (self.view.frame.height/2 + 30), width: self.view.frame.width, height: 250)
datePickerContainer.backgroundColor = UIColor.white
let doneButton = UIButton()
doneButton.setTitle("Done", for: .normal)
doneButton.setTitleColor(UIColor.blue, for: .normal)
doneButton.addTarget(self, action: #selector(dismissPicker), for: UIControlEvents.touchUpInside)
doneButton.frame = CGRect(x: 250.0, y: 5.0, width: 70.0, height: 40.0)
datePickerContainer.addSubview(doneButton)
timePicker.frame = CGRect(x: 0.0, y: 40.0, width: self.view.frame.width, height: 200.0)
timePicker.datePickerMode = UIDatePickerMode.time
timePicker.backgroundColor = UIColor.white
timePicker.addTarget(self, action: #selector(CreateActivityViewController.startTimeDiveChanged), for: UIControlEvents.valueChanged)
datePickerContainer.addSubview(timePicker)
self.view.addSubview(datePickerContainer)
}
#objc func startTimeDiveChanged(sender: UIDatePicker) {
let formatter = DateFormatter()
formatter.timeStyle = .short
expectedTimeBtn.setTitle(formatter.string(from: sender.date), for: .normal)
}
#objc func dismissPicker() {
datePickerContainer.removeFromSuperview()
}