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Mahmoud El-Set
11,602 PointsStuck with first challenge on "Build a self-destructing app" course
I have created a property of NSMutableArray and have now switched to the implementation file.
How do I create an NSMutableArray using arraWithObjects?
9 Answers
Ahmed Samy
Courses Plus Student 1,101 PointsThat is Completely Wrong NOO Way it will Work it should look like that
//[[NSMutableArray alloc] initWithObjects:(@"item 1"),(@"item 2"),nil ];
arshin
17,770 PointsImmplementation File:
self.items = [NSMutableArray arrayWithObjects:@"ObjectA",@"ObjectB",nil];
Ahmed Samy
Courses Plus Student 1,101 PointsI tried alot of codes and this Worked for me I hope I Helped http://codepen.io/anon/pen/lsdny.js Sorry there was an ERROR importing the Code so i uploaded it in Copepen
Mahmoud El-Set
11,602 PointsI may have missed something in my question.
The challenge says:
Declare a property named 'items'. Make it an NSMutableArray, and use the property modifiers 'nonatomic' and 'strong'.
<p>#import "UITableViewController.h"
@interface InboxViewController : UITableViewController
//My Answer @property (strong, nonatomic) NSMutableArray *items;
@end</p>
The next part (which I am stuck with), says:
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.
<p>#import "InboxViewController.h"
@implementation InboxViewController
- (void)viewDidLoad { [super viewDidLoad]; // Add custom code below!
}
@end </p>
I have solved all previous challenges without big issues, but this is not clear to me. ANY help is appreciated.
Ahmed Samy
Courses Plus Student 1,101 PointsFirst U made a mistake in declaring the //@property it should look like this @property (nonatomic,strong) NSMutableArray *items; @end
Then add this code bellow //[[NSMutableArray alloc] initWithObjects:(id),......,nil;
Ahmed Samy
Courses Plus Student 1,101 Pointsif U are still facing problems please share it here
Mahmoud El-Set
11,602 PointsThis is how I understand the question:
import "InboxViewController.h"
@implementation InboxViewController
-
(void)viewDidLoad { [super viewDidLoad]; // Add custom code below! NSString *item1 = @"item1"; NSString *item2 = @"item2";
NSSArray *itemsArray = [NSArray arrayWithObjects:item1, item2];
NSMutableArray *items [NSMutableArray array];
[items addObject: itemsArray];
}
@end
Mahmoud El-Set
11,602 PointsThe error message says:
"Bummer! Compilation Error! Remember to use 'self' to reference your property and to set it as an NSMutableArray."
Mahmoud El-Set
11,602 PointsThank you very much Ahmed Samy :)
Lex Lawless
1,773 Pointsimport "InboxViewController.h"
@implementation InboxViewController
- (void)viewDidLoad { [super viewDidLoad]; // Add custom code below!
self.items = [NSMutableArray arrayWithObjects:@"Object1",@"Object2",nil];
@end
I entered the line with "self.items" and the compiler doesn't like it. What is wrong with this statement?