Question

I have created a class which has a static NSMutableArray, I want this array to be filled with each instance of the class, during my override of init so I don’t have to do anything more coding than I need to.

I should point out the array works perfectly, I am just having trouble storing the correct data.

Does this make sense? If so how can I do this?

Although I have tried doing this

_instance = self;

[[MyClass getStack] addObject:_instance];

It seems I cannot access the instances of the property, and when logged all I get is:

2012-07-14 22:37:58.223 Application[4497:1bb03] <MyClass: 0x92cfc70>

Edit with more code:

My .h file:

@interface MyClass : NSObject

+ (NSMutableArray *)getStack;

My .m file:

@interface MyClass ()

@end

static NSMutableArray *stack;

@implementation MyClass

Edit with image of crash

When logging the array property NSLog(@"%@", [[[MyClass stack] objectAtIndex:0] adam]); It crashes on that line and gives me the following error.

Answer 1

It’s easy to add each instance in its init to a global array:

static NSMutableArray *stack = nil;

@implementation MyClass
+ (void)initialize {
    if (stack == nil)
        stack = [[NSMutableArray alloc] init];
}

+ (id)init {
    self = [super init];
    if (self) {
        [stack addObject:self];
    }
    return self;
}
@end

Your problem must be from something else. Either you are not retaining the global array. Or you are not storing your “property” properly (e.g. you are not retaining it). Or something.