xcode enable a button after a text field is filled
@objc func editingChanged(_ textField: UITextField) {
if textField.text?.characters.count == 1 {
if textField.text?.characters.first == " " {
textField.text = ""
return
}
}
guard
let habit = habitNameField.text, !habit.isEmpty,
let goal = goalField.text, !goal.isEmpty,
let frequency = frequencyField.text, !frequency.isEmpty
else {
doneBarButton.isEnabled = false
return
}
doneBarButton.isEnabled = true
}