Instance Variables for Objective C Categories

Question

I have a situation where it seems like I need to add instance variables to a category, but I know from Apple\'s docs that I can\'t do that. So I\'m wondering what the best a

Answer 1

Depending on what you're doing, you may want to use Static Category Methods.

So, I assume you've got this kind of problem:

ScrollView has a couple of textedits in them. User types on text edit, you want to scroll the scroll view so the text edit is visible above the keyboard.

+ (void) staticScrollView: (ScrollView*)sv scrollsTo:(id)someView
{
  // scroll view to someviews's position or some such.
}

returning from this wouldn't necessarily require the view to move back, and so it doesn't need to store anything.

But that's all I can thinkof without code examples, sorry.