Re: NSMutableArray is null?
Re: NSMutableArray is null?
- Subject: Re: NSMutableArray is null?
- From: Pierce Freeman <email@hidden>
- Date: Tue, 31 Mar 2009 19:36:55 -0700
- Thread-topic: NSMutableArray is null?
Hey Roland:
Yeah, thanks to yourself and others I finally remembered that you have to
"make" the variable somewhere. ;) And I know what a instance variable is,
it's just that I couldn't think of the term when writing my original post.
On 3/31/09 7:20 PM, "Roland King" <email@hidden> wrote:
> well no that's just the declaration of the NSMutableArray pointer, you
> have to actually make it somewhere, in the initializer of your
> Example_Class (and release it somewhere too)
>
> And that variable isn't global, it's a class instance variable.
>
> You might want to go back to the Objective-C 2.0 Programming Language
> chapter about classes and initialization, that whole document is very
> good and may help you sort out some ideas.
>
> Pierce Freeman wrote:
>> Whoops, sorry I didn't put that in...
>>
>> @interface Example_Class : NSObject {
>>
>> IBOutlet NSTableView *tableView;
>> NSMutableArray *globalVariable;
>> }
>>
>>
>> On 3/31/09 7:09 PM, "I. Savant" <email@hidden> wrote:
>>
>>
>>> We *can't* assume anything. You left out the most relevant part of
>>> your code: how are you creating "globalVariable"?
>>>
>>> --
>>> I.S.
>>>
>>>
>>>
>>> On Mar 31, 2009, at 10:05 PM, Pierce Freeman wrote:
>>>
>>>
>>>> Hi everyone:
>>>>
>>>> I am having a strange problem with NSMutableArray which is that it
>>>> doesn't
>>>> seem to work with addObjectsFromArray. I try setting this for a
>>>> "global
>>>> variable" (forget what they are called in Cocoa) and it just
>>>> returned null.
>>>> Here is my code (assuming that global Variable is the global
>>>> variable which
>>>> is a NSMutable Array):
>>>>
>>>> NSArray *testing = [NSArray arrayWithObjects:@"testing", @"testing",
>>>> nil];
>>>> [globalVariable addObjectsFromArray:testing];
>>>>
>>>> Thanks for any help.
>>>>
>>>>
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>>
>>
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