How can I initialize a custom GUI class?

I'm developing an iPad app.

Now I ra开发者_如何学Gon into the following problem. I created a "Custom Class" for a UIScrollView. So in my nib file I have added a default UIScrollView and set the Custom Class to MultiSelectView (which is the custom class I created). Screenshot here.

So in my MultiSelectView I have added some methods that I want to use. This works!

The issue is that I'm wondering how I can initialize certain objects that I need in these methods. It seems like - (id)initWithFrame:(CGRect)frame {} is not called, and neither is - (void) viewDidLoad {}.

Thus, is there a way to initialize a custom (GUI) class?

When you unarchive a view from a .xib file, it is not sent -initWithFrame:, as you've noticed. Instead, it's sent -initWithCoder:.

So, if you've got any UIView subclass in a .xib file that needs custom initialization, you'll need to override -initWithCoder: as well as (or instead of) -initWithFrame:.

Looks like you need initWithCoder, it is called when object is loaded from NIB

Or, better, awakeFromNib. The difference is that awakeFromNib is called when all outlets are connected.