Question

I have classes Compose and Haiku, each connected to a view controller in IB. Haiku is instantiated in Compose as ghhaiku. Haiku has an array, self.arrayOfHaiku, with 117 members. But in Compose, self.ghhaiku.arrayOfHaiku has no members.

I think the problem is that I haven’t linked the instance of Haiku that has the 117-member array with the instance of Haiku created in Compose. But how do I do that?

(I could of course be totally wrong and the problem could be something else, but that seems to make intuitive sense.)

Any thoughts?

EDIT:

Haiku.m contains the following code:

-(void)viewDidLoad
{

[super viewDidLoad];

    [self.arrayOfHaiku addObjectsFromArray:userH];

    NSLog(@"%d",self.arrayOfHaiku.count); //This logs 117.

    [self goToNextHaiku];
}

Compose.h contains the line @property (strong, nonatomic) Haiku *ghhaiku;

Compose.m contains the following code:

@synthesize ghhaiku;

- (void)viewDidLoad
{
    [super viewDidLoad];
    //Lots of other code
    NSLog(@"%d",self.ghhaiku.arrayOfHaiku.count); //this logs 0.
}

Answer 1

Ok you are never initializing the ghaiku, just defining it. Also why is haiku have a viewDidLoad method? Basically you need to do something like:

 self.ghhaiku = [[Haiku alloc] initWithData:SOME_ARRAY];

in your Compose.m

Just an fyi, if Haiku is just a model class you shouldn’t use it as a view/viewcontroller. Just as an NSObject. Then just do:

-(id)initWithData:(NSArray*)data{
self = [super init];
if(self){
    self.arrayOfHaiku = data;
}
return self;
}

just remember to define the method in your Haiku.h

-(id)initWithData:(NSArray*)data;

---

READ THIS FIRST
Ok I originally misunderstood what you were doing but I think you should still make a Haikus singleton class (i will update the above code to reflect that later when I have more time — or you can google) then just call [Haikus sharedInstance].arrayOfHaikusin each of your view controllers.