How To Validate Date Using Date-picker in Swift 2.0

In iOS swift 2.0 generally programmers use text validate date using simple text field. But a programmer want to validate date using date picker, then this could be a little tough task. Using date picker you can only justify time and date but can’t validate Date. Here expert developer at Inwizards, leading software development company has shared a simple validation task with code, that would help you to validate date using Date picker in Swift 2.0.

import UIKit

class ViewController: UIViewController {

@IBOutlet weak var DOBTextField:UITextField!

@IBOutlet weak var datePicker:UIDatePicker!

@IBOutlet weak var PickerBackgroundView:UIView!

@IBOutlet weak var Status: UILabel!

var formatter = NSDateFormatter()

override func viewDidLoad() {

super.viewDidLoad()

formatter.dateFormat = “MMM dd,yyyy”

}

override func viewWillAppear(animated: Bool) {

super.viewWillAppear(true)

self.initializeTextFieldInputView()

}

func initializeTextFieldInputView(){

self.datePicker.backgroundColor = UIColor.whiteColor()

self.datePicker.datePickerMode = UIDatePickerMode.Date

self.DOBTextField.inputView = self.PickerBackgroundView

self.PickerBackgroundView.removeFromSuperview()

}

func textFieldShouldBeginEditing(textField: UITextField) -> Bool {

if (textField == self.DOBTextField){

self.datePicker.hidden = false

}else{

self.datePicker.hidden = true

}

return true

}

@IBAction func buttonDone(sender:AnyObject){

self.view.endEditing(true)

let Currentdate:NSDate = NSDate()

let ageComponents:NSDateComponents = NSCalendar.currentCalendar().components(NSCalendarUnit.Year, fromDate:self.datePicker.date, toDate: Currentdate, options: NSCalendarOptions.init(rawValue: 0))

if (ageComponents.year < 18){

self.Status.text = “Date of birth is invalid”

let alert = UIAlertView(title: “Alert”, message: “You must be 18 years of age or older. Sorry, this is required by law.”, delegate: self, cancelButtonTitle: “OK”)

alert.show()

}else{

self.Status.text = “Date of birth is valid”

self.DOBTextField.text = formatter.stringFromDate(self.datePicker.date)

}

}

}

Here I am sharing my code sample which on my GithHub repository.

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