Minimum and maximum date in UIDatePicker

Question

I want to get the minimum and maximum date from a date picker, but minimum date should be \"- 18\" of the current date and the maximum date should be \"- 100\" of current da

Answer 1

Swift 4.0

UIDatePicker Extension

extension UIDatePicker {
    func set18YearValidation() {
        let currentDate: NSDate = NSDate()
        let calendar: NSCalendar = NSCalendar(calendarIdentifier: NSCalendar.Identifier.gregorian)!
        calendar.timeZone = NSTimeZone(name: "UTC")! as TimeZone
        let components: NSDateComponents = NSDateComponents()
        components.calendar = calendar as Calendar
        components.year = -18
        let maxDate: NSDate = calendar.date(byAdding: components as DateComponents, to: currentDate as Date, options: NSCalendar.Options(rawValue: 0))! as NSDate
        components.year = -150
        let minDate: NSDate = calendar.date(byAdding: components as DateComponents, to: currentDate as Date, options: NSCalendar.Options(rawValue: 0))! as NSDate
        self.minimumDate = minDate as Date
        self.maximumDate = maxDate as Date
    } }

Answer 2

Another case :

Suppose I want to show Date of birth as a Date picker, Dob is within the range of 1/1/1980 to  1/1/2000.

@IBOutlet var datePicker: UIDatePicker!

override func viewDidLoad() {
        super.viewDidLoad()        
        datePicker.datePickerMode = UIDatePickerMode.date       


        // 01/01/1980 to 01/01/2000

        let calendar = Calendar.current
        var minDateComponent = calendar.dateComponents([.day,.month,.year], from: Date())
        minDateComponent.day = 01
        minDateComponent.month = 01
        minDateComponent.year = 1980

        let minDate = calendar.date(from: minDateComponent)
        print(" min date : \(minDate)")

        var maxDateComponent = calendar.dateComponents([.day,.month,.year], from: Date())
       maxDateComponent.day = 01
        maxDateComponent.month = 01
        maxDateComponent.year = 2000

        let maxDate = calendar.date(from: maxDateComponent)
        print("max date : \(maxDate)")

        self.datePicker.minimumDate = minDate! as Date
        self.datePicker.maximumDate =  maxDate! as Date

}

Answer 3

**Minimum and maximum date in UIDatePicker: #Swift

**if you want to select the min and max date between two date value use below simple code: **

for Example : Min Date : 01-04-2017 and Max Date : 31-03-2018

let calendar = Calendar.current
var minDateComponent = calendar.dateComponents([.day,.month,.year], from: Date())
minDateComponent.day = 01
minDateComponent.month = 04
minDateComponent.year = 2017

let minDate = calendar.date(from: minDateComponent)
print(" min date : \(String(describing: minDate))")

var maxDateComponent = calendar.dateComponents([.day,.month,.year], from: Date())
maxDateComponent.day = 0
maxDateComponent.month = 03 + 1
maxDateComponent.year = 2018

let maxDate = calendar.date(from: maxDateComponent)
print("max date : \(String(describing: maxDate))")

picker.minimumDate = minDate! as Date
picker.maximumDate =  maxDate! as Date

Answer 4

Swift 4.1

I have created my extension for all type of limit based on Calendar.Component

extension UIDatePicker {

    func setLimit(forCalendarComponent component:Calendar.Component, minimumUnit min: Int, maximumUnit max: Int) {

        let currentDate: Date = Date()
        var calendar: Calendar = Calendar(identifier: Calendar.Identifier.gregorian)

        guard let timeZone = TimeZone(identifier: "UTC") else { return }
        calendar.timeZone = timeZone

        var components: DateComponents = DateComponents()
        components.calendar = calendar

        components.setValue(-min, for: component)
        if let maxDate: Date = calendar.date(byAdding: components, to: currentDate) {
            self.maximumDate = maxDate
        }

        components.setValue(-max, for: component)
        if let minDate: Date = calendar.date(byAdding: components, to: currentDate) {
            self.minimumDate = minDate
        }
    }

}

We can use this as following:

self.datePicker.setLimit(forCalendarComponent: .year, minimumUnit: 13, maximumUnit: 100)

Answer 5

Swift 5.1

extension UIDatePicker {
    func set18YearValidation() {
        let currentDate: Date = Date()
        var calendar: Calendar = Calendar(identifier: Calendar.Identifier.gregorian)
        calendar.timeZone = TimeZone(identifier: "UTC")!
        var components: DateComponents = DateComponents()
        components.calendar = calendar
        components.year = -18
        let maxDate: Date = calendar.date(byAdding: components, to: currentDate)!
        components.year = -150
        let minDate: Date = calendar.date(byAdding: components, to: currentDate)!
        self.minimumDate = minDate
        self.maximumDate = maxDate
    } }