UIDatePicker on button tap - ios

Question

So far I've only found date-picker bound to UITextField, but I need a date-picker which opens on UIButton tap in the same way as it does with the UITextField.
Is it possible? And if so, how? Thanks in advance.

Answer 1

#IBAction func BtnClicked(sender: AnyObject) {
var picker : UIDatePicker = UIDatePicker()
picker.datePickerMode = UIDatePickerMode.Date
picker.addTarget(self, action: "dueDateChanged:", forControlEvents: UIControlEvents.ValueChanged)
var pickerSize : CGSize = picker.sizeThatFits(CGSizeZero)
picker.frame = CGRectMake(0.0, 250, pickerSize.width, 460)
// you probably don't want to set background color as black
// picker.backgroundColor = UIColor.blackColor()
self.view.addSubview(picker)
}
func dueDateChanged(sender:UIDatePicker){
var dateFormatter = NSDateFormatter()
dateFormatter.dateStyle = NSDateFormatterStyle.LongStyle
dateFormatter.timeStyle = NSDateFormatterStyle.NoStyle
self.myLabel.text = dateFormatter.stringFromDate(dueDatePickerView.date)
}

Answer 2

because i dont have enough reputation to comment , i am posting same answer of #iAnurag in Swift 4
#IBAction func UpdateDOBClick(_ sender: UIButton) {
let picker : UIDatePicker = UIDatePicker()
picker.datePickerMode = UIDatePickerMode.date
picker.addTarget(self, action: #selector(dueDateChanged(sender:)), for: UIControlEvents.valueChanged)
let pickerSize : CGSize = picker.sizeThatFits(CGSize.zero)
picker.frame = CGRect(x:0.0, y:250, width:pickerSize.width, height:460)
// you probably don't want to set background color as black
// picker.backgroundColor = UIColor.blackColor()
self.view.addSubview(picker)
}
#objc func dueDateChanged(sender:UIDatePicker){
let dateFormatter = DateFormatter()
dateFormatter.dateStyle = .short
dateFormatter.timeStyle = .none
dobButton.setTitle(dateFormatter.string(from: sender.date), for: .normal)
}

Answer 3

Here is another approach using .hidden feature of the controls. I use a button that changes the title when touched and hides/shows the date picker.
import UIKit
class ViewController: UIViewController {
#IBOutlet weak var showDate: UILabel!
#IBOutlet weak var myButtonx: UIButton!
#IBAction func myButton(sender: UIButton) {
if myButtonx.titleLabel?.text != "Done" {
// save the date for your need
showDate.text = "\(myDatePicker.date)"
myDatePicker.hidden = false
myButtonx.setTitle("Done",forState: UIControlState.Normal)
} else {
myDatePicker.hidden = true
myButtonx.setTitle("Pick Date",forState: UIControlState.Normal)
}
}
#IBOutlet weak var myDatePicker: UIDatePicker!
override func viewDidLoad() {
super.viewDidLoad()
myDatePicker.hidden = true
myButtonx.setTitle("Pick Date",forState: UIControlState.Normal)
// 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.
}
}

Answer 4

private var datePicker: UIDatePicker?
#IBAction func dateFilterAction(_ sender: UIButton) {
if self.view.subviews.contains(where: { $0 is UIDatePicker }) {
self.datePicker?.removeFromSuperview()
dateFilter.setTitle("Datum", for: .normal)
} else {
datePicker = nil
setupDatePicker()
}
}
private func setupDatePicker() {
let picker = datePicker ?? UIDatePicker()
picker.datePickerMode = .date
if #available(iOS 13.4, *) {
picker.preferredDatePickerStyle = .wheels
}
picker.addTarget(self, action: #selector(dueDateChanged(sender:)), for: .valueChanged)
let size = self.view.frame.size
picker.frame = CGRect(x: 0.0, y: size.height - 200, width: size.width, height: 200)
picker.backgroundColor = UIColor.white
self.datePicker = picker
self.view.addSubview(self.datePicker!)
}
#objc func dueDateChanged(sender:UIDatePicker){
let dateFormatter = DateFormatter()
dateFormatter.dateStyle = .short
dateFormatter.timeStyle = .none
print("action")
dateFilter.setTitle(dateFormatter.string(from: sender.date), for: .normal)
}