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Jeroen de Vrind
29,772 PointsHow to access specific textField from another class?
Since TPKeyboardAvoidingScrollView is my UITextField delegate, I have to implement the method:
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {}
in that class.
I want to use this method to set the maximum number of characters that the user can put into this field. How can I reach a specific textfield like passwordField, which is in my ScrollView, from this class? Because the passwordField property is in the SignUpViewController or LogInViewController class. Do I have to import these classes in my TPKeyboardAvoidingScrollView class and in which way can i access them? Or can I have multiple delegates for my UITextView?
4 Answers
Jeroen de Vrind
29,772 PointsThx Gareth. I made LoginViewController the delegate and put the method in that class. The method won't be triggered. Maybe it's because the textfield is in a ScrollView with it's own class:TPKeyboardAvoidingScrollView which is in LoginViewController?
Gareth Borcherds
9,372 PointsYou can have as many delegates for your UITextView as you'd like. I'm pretty sure that delegates need to be placed in the view controller that controls the view. So, it sounds like you would need to create a delegate in SignUpViewController and LogInViewController for UITextView and implement those functions that you want for it there.
It's also important to note that if you have multiple UITextView's in the same view controlled by the same view controller, then you can implement the delegate for UITextView in that controller, but control the behavior of all your UITextViews. The method you posted above passes the textField as an argument, and you can use that to create if statements to manage multiple in the same controller.
Hope that helps.
Jeroen de Vrind
29,772 PointsThat's it! Thx!
Gareth Borcherds
9,372 PointsAwesome. Glad you got it to work. Make sure to mark best answer to show this one as solved.
Gareth Borcherds
9,372 PointsGareth Borcherds
9,372 PointsDid you link up your text field to the class as a delegate? If you're using storyboards, you can drag and drop from the connections inspector and create the delegate connection.