Question

Below is my code:

First Category.h

#import <Foundation/Foundation.h>
@interface Category : NSObject {
    NSMutableArray *items;
    NSString *name;
    NSString *description;
    NSString *imagePath;
    NSString *id;
}

@property (nonatomic, retain) NSMutableArray *items;
@property (nonatomic, retain) NSString *name;
@property (nonatomic, retain) NSString *description;
@property (nonatomic, retain) NSString *id;
@property (nonatomic, retain) NSString *imagePath;
-(id)init;
-(UIImage*)getImage;
@end

And the controller:

- (id)initWithCategory:(Category *)categoryItem
{
    self = [super init];
    if (self) {
        self.category = categoryItem; 
    }
    return self;
}

And in the header file:

@property (nonatomic, retain) Category *category;
- (id)initWithCategory:(Category *)categoryItem;

I want that self.category and categoryItem would be exactly the same.

Update: I am so sorry, error was not from here. Thank you for your help.

Answer 1

If category is a property, then you should use self.category.

However, assuming that you have synthesized your property with a backing ivar such as _category (@synthesize category = _category), then you should refer to the ivar and use _category in the init method.