Xcode: Dismiss keyboard after tapping autofill - ios

Question

In Swift, I want to detect when the user has finished adding their username/password using autofill (from https://developer.apple.com/documentation/security/password_autofill) and not reopen the keyboard, since they're presumably done using the keyboard.
Here's how I've setup their username/password inputs:
override func viewDidLoad() {
super.viewDidLoad()
name.textContentType = .username
password.textContentType = .password
loginButton.addTarget(self, action: #selector(self.loginPressed), for: .touchUpInside)
}
#objc func loginPressed() {
// Making server calls here
}
Right now, after I hit an autofill username, my iOS runs the FaceID check, then reopens the keyboard. The user has to manually close the keyboard after.

Answer 1

When a user uses autofill, depending on which type of view you use to get text input, a certain delegate method is called, as well as a textDidChangeNotification (docs). For UITextField the method is (textField(_:shouldChangeCharactersIn:replacementString:)). The string passed in is whatever new string is added, and "normally contains only the single new character that was typed" but if the user uses autofill, or pastes in a password, the number of characters in the string will be longer. You could try checking for that and calling endEditing if more than one new character is added.

Answer 2

override func viewDidLoad() {
super.viewDidLoad()
name.textContentType = .username
password.textContentType = .password
//set delegate
name.delegate = self
password.delegate = self
loginButton.addTarget(self, action:
#selector(self.loginPressed),
for: .touchUpInside)
}
#objc func loginPressed() {
// Making server calls here
}
extension UIViewController: UITextFieldDelegate
{
func textFieldShouldEndEditing(_ textField: UITextField) -> Bool {
if textField == name
{
DispatchQueue.main.async {
self.view.endEditing(true)
}
}
return true
}
}