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Re: Outlet from Different Implementation?
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Re: Outlet from Different Implementation?


  • Subject: Re: Outlet from Different Implementation?
  • From: Graham Cox <email@hidden>
  • Date: Wed, 17 Sep 2008 12:11:00 +1000


On 17 Sep 2008, at 11:18 am, Jeshua Lacock wrote:

- (id)		myOutlet
{
  return MyOutlet;
}

Thanks Graham,

Looks simple enough, however, I  can't seem to make it work.

I get a warning "warning: instance variable 'MyOutlet' accessed in a class method"


Does your accessor look like mine above, or does it look like this:

+ (id)	myOutlet
{
    return MyOutlet;
}


The '+' or '-' symbol in front of the method is very important. + means it's a class method, - means it's an instance method. See here:


http://developer.apple.com/documentation/Cocoa/Conceptual/ObjectiveC/Articles/chapter_3_section_3.html#/ /apple_ref/doc/uid/TP30001163-CH12-TPXREF122

In the other implementation that I am attempting to get the value of MyOutlet from, I am calling your suggested MyOutlet accessor method with:

id MyOutletID = [MyContent MyOutlet];


It occurs to me that you have written it correctly as an instance method, but are trying to access it as a class method, so:

foo = [MyClass myOutlet]; would be wrong. You need to have an actual reference to an instance of the class, e.g. foo = [someObjectOfInterest myOutlet]; where someObjectOdInterest is declared as MyContent* someObjectOfInterest; and of course has been assigned, either using IB or using alloc/init in code.

It's hard to know how best to address your question in this case - it suggests a bit of a misunderstanding about what objects and classes are, so maybe you just need to brush up on OO in general?

hth,


Graham


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  • Follow-Ups:
    • Re: Outlet from Different Implementation?
      • From: Jeshua Lacock <email@hidden>
References: 
 >Outlet from Different Implementation? (From: Jeshua Lacock <email@hidden>)
 >Re: Outlet from Different Implementation? (From: Graham Cox <email@hidden>)
 >Re: Outlet from Different Implementation? (From: Jeshua Lacock <email@hidden>)
 >Re: Outlet from Different Implementation? (From: Graham Cox <email@hidden>)
 >Re: Outlet from Different Implementation? (From: Jeshua Lacock <email@hidden>)

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