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iOS Build a Self-Destructing Message iPhone App Designing and Starting the App Introducing the Project

Designing and starting the App

Challenge task 2 of 2

Now switch to the implementation file and set the 'items' property to an array of two or more NSString objects using the 'arrayWithObjects' method of the NSMutableArray class.

My code (Line #4):

import "UITableViewController.h"

@interface InboxViewController : UITableViewController

@property (strong, nonatomic) NSMutableArray *items;

NSMutableArray *items = [arrayWithObjects:@"one",@"two"];



Bummer! Compilation Error! Remember to use 'self' to reference your property and to set it as an NSMutableArray.

2 Answers

Adam Hill
Adam Hill
7,492 Points

Hi Joey,

Roberts right, you need to switch to the .m file and I can't remember how I got to the right answer, but I found another solution here:-


self.items = [NSMutableArray arrayWithObjects:@"one string", @"another string", @"third string", nil]
Robert Bojor
Robert Bojor
Courses Plus Student 29,439 Points

Hi Joey,

As the challenge says, you should change to the implementation file ( the .m file ) and there you should add the definition of the array.

NSMutableArray *items = [arrayWithObjects:@"one",@"two"];