Limiting UIDatePicker dates from a particular time. Such as Input DOB to a restricted age limit

Question

In my code, I have a UITextField that when the user taps on opens a UIDatePicker to enable the user to easily and efficiently scroll through to their Date Of Birth. Obviousl

Answer 1

UIDatePicker has a maximumDate that you can set. Simply set the mode to "Date" in IB and add: datePicker.maximumDate = NSDate(timeIntervalSinceNow: -504911232)

-504911232 means 16 before today(accounting leap years)

Answer 2

You can use dateByAddingUnit and subtract 16 years from current date to set the maximum date for your datePicker as follow:

datePicker.maximumDate = NSCalendar.currentCalendar().dateByAddingUnit(.Year, value: -16, toDate: NSDate(), options: [])

Xcode 10.2.1 • Swift 5

datePicker.maximumDate = Calendar.current.date(byAdding: .year, value: -16, to: Date())