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iOS Build a Simple iPhone App with Objective-C Creating a Data Model Creating a Data Collection

Ronnie Barua
Ronnie Barua
17,665 Points
Posted by Ronnie Barua
Ronnie Barua
17,665 Points

What's wrong with this Xcode shoppingList Challenge anyone?

Let's add a few items to our grocery list. Switch to the implementation file and in the viewDidLoad method, initialize the shoppingList array to the following items: 'toothpaste', 'bread' and 'eggs'.

ViewController.h 
#import "UIViewController.h"

@interface ViewController : UIViewController

@property (strong, nonatomic) NSArray *shoppingList;

@end
ViewController.m 
#import "ViewController.h"

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    // Add your code below!
    NSArray *shoppingList = [[NSArray alloc]initWithObjects:@"toothpaste", @"bread", @"eggs", nil];

}

@end

2 Answers

AVALONcomu Profile
AVALONcomu Profile
36,146 Points
AVALONcomu Profile
AVALONcomu Profile
36,146 Points

When you write in implementation NSArray* shoppingList =... - you create another variable, not the one you declared in the header file. To access the @property of shoppingList you need to ask self:

self.shoppingList = [[NSArray alloc]initWithObjects:@"toothpaste", @"bread", @"eggs", nil];