Question

I am newbie in iOS programming, Recently I came across a tutorial where author assigned a ViewController to a textField delegate. Is it good to do this? As Xcode is giving me warning.

discussIDTextField.delegate = self;

self is DiscussViewController and above code is inside DiscussViewController.m

Code works fine but I don’t like yellow bubbles showing on my screen while writing codes. If I want to get rid of this warning what should I do?

Warning : Assigning id from incompatible type
‘DiscussViewController’.

Answer 1

The view controller (self) has to implement the UITextFieldDelegate protocol. So your @interface definition should look something like this:

@interface DiscussViewController : UIViewController <UITextViewDelegate>

And then of course in the implementation implement some of the delegated protocol methods.