iOS Swift 3 - UIDatePicker

Question

I have a UIDatePicker that shows the day, month and the year. But I don't know how to get those parameters.

So What is the best way to get the day, month and year from UIDatePicker using Swift 3?

Answer 1

UIDatePicker in Swift 3 and Swift 4 example.

In Swift 3 You can use

1. Create Simple Project of Single View Application in swift 3
2. Drag a text field & connect to viewController
3. Date picker look like image

1. ViewController code is bellow..

     class ViewController: UIViewController {      //Text Field Connection    @IBOutlet weak var txtDatePicker: UITextField!    //Uidate picker    let datePicker = UIDatePicker()      override func viewDidLoad() {     super.viewDidLoad()    //show date picker      showDatePicker()   }      func showDatePicker(){    //Formate Date     datePicker.datePickerMode = .date      //ToolBar    let toolbar = UIToolbar();    toolbar.sizeToFit()     //done button & cancel button     let doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.bordered, target: self, action: "donedatePicker")     let spaceButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.flexibleSpace, target: nil, action: nil)    let cancelButton = UIBarButtonItem(title: "Cancel", style: UIBarButtonItemStyle.bordered, target: self, action: "cancelDatePicker")    toolbar.setItems([doneButton,spaceButton,cancelButton], animated: false)  // add toolbar to textField txtDatePicker.inputAccessoryView = toolbar  // add datepicker to textField txtDatePicker.inputView = datePicker     }   func donedatePicker(){   //For date formate    let formatter = DateFormatter()    formatter.dateFormat = "dd/MM/yyyy"    txtDatePicker.text = formatter.string(from: datePicker.date)    //dismiss date picker dialog    self.view.endEditing(true)     }        func cancelDatePicker(){        //cancel button dismiss datepicker dialog         self.view.endEditing(true)       }    } 

2. Full Source project is given to github. github Link:https://github.com/enamul95/DatePicker1

   In Swift 4 or 5 you can use bellow code

    class ViewController: UIViewController {     @IBOutlet weak var txtDatePicker: UITextField!   let datePicker = UIDatePicker()    override func viewDidLoad() {     super.viewDidLoad()      showDatePicker()   }     func showDatePicker(){     //Formate Date     datePicker.datePickerMode = .date     //ToolBar    let toolbar = UIToolbar();    toolbar.sizeToFit()    let doneButton = UIBarButtonItem(title: "Done", style: .plain, target: self, action: #selector(donedatePicker));    let spaceButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.flexibleSpace, target: nil, action: nil)   let cancelButton = UIBarButtonItem(title: "Cancel", style: .plain, target: self, action: #selector(cancelDatePicker));   toolbar.setItems([doneButton,spaceButton,cancelButton], animated: false)    txtDatePicker.inputAccessoryView = toolbar   txtDatePicker.inputView = datePicker   }    @objc func donedatePicker(){     let formatter = DateFormatter()    formatter.dateFormat = "dd/MM/yyyy"    txtDatePicker.text = formatter.string(from: datePicker.date)    self.view.endEditing(true)  }   @objc func cancelDatePicker(){     self.view.endEditing(true)   } } 

Answer 2

In Swift 3 you can use DateComponents for that like this way.

First add action on datepicker for .valueChanged events.

datepicker.addTarget(self, action: #selector(dateChanged(_:)), for: .valueChanged) 

Then get selected day, month and year using DateComponents in the action.

func dateChanged(_ sender: UIDatePicker) {     let components = Calendar.current.dateComponents([.year, .month, .day], from: sender.date)     if let day = components.day, let month = components.month, let year = components.year {         print("\(day) \(month) \(year)")     } }