问题
This is strictly for SwiftUI.
I would like to have the keyboard move to the next available text field when the user hits the 'return' key on the keyboard.
I have the following view:
var body: some View {
VStack {
NavigationView {
Form {
TextField("First name", text: $model.firstname)
.tag(1)
TextField("Last name", text: $model.lastname)
.tag(2)
}
.navigationBarTitle("Add a Person", displayMode: .inline)
}
}
}
And the following code that should allow the tab:
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
let nextTag = textField.tag + 1
if let nextResponder = textField.superview?.viewWithTag(nextTag) {
nextResponder.becomeFirstResponder()
} else {
textField.resignFirstResponder()
}
return true
}
I am just not sure how to implement it in SwiftUI?
How do I assign it to the delegate of the textfield?!
****UPDATE****
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
print("Current Tag: ", textField.tag) // Works correctly
let nextTag = textField.tag + 1
print("Next Tag: ", nextTag) // Works correctly
let nextResponder = textField.superview?.viewWithTag(nextTag) as UIResponder? // ALWAYS RETURN NIL
....
Not sure why the assignment of nextResponder always returns nil?!
来源：https://stackoverflow.com/questions/60693733/tab-to-next-text-field-when-next-return-key-hit-on-keyboard-in-swiftui