title: Swift change date picker language
body: <p>I want to change format of month represent in my UIDatePicker. I tried:</p>
  
  <pre><code>self.datePicker = UIDatePicker()
  self.datePicker.backgroundColor = .white
  self.datePicker.datePickerMode = .date
  let loc = Locale.init(identifier: "uk")
  var calendar = Calendar.current
  calendar.locale = loc
  self.datePicker.calendar = calendar
  </code></pre>
  
  <p>After that, month representation suppose to be in ukranian, but it still in other language.</p>