CODEWITHSUNDEEP
iphoneobjective-cxcodecocoa-touch
Rene Koller
Rene Koller

Reputation: 415

IBOutlet UITableView is null after View did load

Here's the basic code (based on Xcode's Tabbed Applicaion Template)

ViewController.h

@interface ViewController : UIViewController <UITableViewDataSource, UITableViewDelegate>
@property (nonatomic,retain) NSMutableArray *movies;
@property (nonatomic,retain) IBOutlet UITableView *tableView;

ViewController.m

@implementation ViewController
@synthesize movies,tableView;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        self.title = NSLocalizedString(@"Watchlist", @"Watchlist");
        self.tabBarItem.image = [UIImage imageNamed:@"watchlist"];
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
     NSLog(@"tableView = %@", tableView);
}

Output

tableView = (null)

The TableView is connected to File's owner in IB with class is set to ViewController

I really don't get why the tableView is null. I'm not a complete newbie to Cocoa (but to the iPhone SDK), I created a Single View based Application with a TableView dataSource to see if I was missing something. I got it working in under a minute.

Anybody can help out?

Upvotes: 3

Views: 8176

Answers (2)

auco
auco

Reputation: 9579

Make sure the nib/xib is included in your current target.

I just experienced this issue on Xcode5 with iOS7 SDK. Strangely enough, I discovered that the nib wasn't included in my target anymore. I don't know when and why that happened, but it had this strange side effect that most IBOutlets weren't set up properly, even if all connections from code to nib/xib were fine.

For example: my MKMapView *map was in my list of subviews on viewDidLoad:, but the IBOutlet MKMapView *map property in my view controller was still nil. After I ticked the "include in target" checkbox, everything worked as expected.

Upvotes: 1

Paul.s
Paul.s

Reputation: 38728

In interface builder right click File's Owner and ensure that the following connections are made:

Outlets
tableView - Table View

Referencing Outlets
dateSource - Table View
delegate   - Table View

I suspect you may have not made the first connection?

Upvotes: 8

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