as you can see, my UIPickerView is in back a Tab bar, how to make it in front them? i'm using swift
and also my done button doesn't work to hide the UIView that contain UIPickerView, i'm sure the button connected to an action
here's my doneButton action
@IBAction func doneButtonTapped(sender: AnyObject) {
self.viewUIPickerView.viewWithTag(1)?.hidden = true
}