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

Laura Kirby
Laura Kirby
1,814 Points

Initialize NSArray with three NSString objects. My code works in Xcode but is not evaluated as a correct solution here.

I have tested 3 different ways to initialize the NSArray with the 3 NSString objects. All three of my implementations work in Xcode but are not considered a "solution" to the quiz question.

I also tried:

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

and

NSArray *shoppingList = @[@"toothpaste", @"bread", @"eggs"];

What am I missing?

ViewController.h
#import "UIViewController.h"

@interface ViewController : UIViewController
@property(nonatomic, strong)NSArray *shoppingList; 
@property (strong, nonatomic) NSString *shoppingCart;

@end```  

ViewController.m
```#import "ViewController.h"

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

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

@end```

2 Answers

Jeremy Faith
PLUS
Jeremy Faith
Courses Plus Student 56,696 Points

You declared NSArray *shoppingList in the header file. In the implementation file you can access @property NSArray *shoppingList using the keyword self.

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

Hope this helps.

Laura Kirby
Laura Kirby
1,814 Points

I see, rather than accessing a property on on the view controller, I was creating a completely new NSArray and accessing items from that array. Thank you Jeremy!