Array Count is 0 after adding an element?

Question

I'm using the code below to add an Object of my Platform class (basic storage class, subclass of NSObject) to an NSMutableArray. But the NSLog statement outputs 0.

How can this happen?

Platform *platform = [Platform platformWithLabel:label identifier:identfier];

[self.platforms addObject:platform];

NSLog(@"%i", [self.platforms count]);

This is the creation method of Platform:

+(Platform *)platformWithLabel:(NSString *)label identifier:(int)identifier
{
    Platform *platform = [[Platform alloc] init];

    platform.label = label;
    platform.identifier = identifier;

    return platform;
}

I'm using ARC. This is how I declare my platforms array:

@property (strong, nonatomic) NSMutableArray *platforms;

Mark Leonard · Accepted Answer · 2012-01-25 18:17:24Z

4

Probably you are forgetting to initialize the NSMutableArray itself. Check and make sure you're doing so.

answered Jan 25, 2012 at 18:17

Mark Leonard

2,10619 silver badges29 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Andrey Zverev · Accepted Answer · 2012-01-25 18:20:16Z

0

Most likely you're not initializing your self.platforms array.

answered Jan 25, 2012 at 18:20

Andrey Zverev

4,4361 gold badge30 silver badges34 bronze badges

Comments

dom · Accepted Answer · 2012-01-25 18:27:28Z

0

Don't forget to initializing the NSMutableArray :)

platforms = [[NSMutableArray alloc] init];

answered Jan 25, 2012 at 18:27

dom

12k10 gold badges53 silver badges74 bronze badges

Collectives™ on Stack Overflow

Array Count is 0 after adding an element?

3 Answers 3

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related