add
abstract fun addOnButtonFormFieldUpdatedListener(@NonNull listener: FormListeners.OnButtonFormFieldUpdatedListener)
Adds OnButtonFormFieldUpdatedListener to get notified when button fields get updated. If the listener has already been added previously, this method will be a no-op. Adding
null is not allowed, and will result in an exception.
Parameters
listener
OnButtonFormFieldUpdatedListener that should be notified. Must be non-null.