Question

An array is filled properly but when I try to access to content again, seems that is empty again!! trying to post as many code as necessary. Thanks for help.

I declare appData in .h file:

@interface userViewController : UIViewController <UITableViewDelegate, UITableViewDataSource> {

    NSArray *appData;

    IBOutlet UIActivityIndicatorView *activityIndicator;
    IBOutlet UILabel *status;
    IBOutlet UITableView *mainTable;
}

@property (nonatomic, retain) NSArray *appData;
@property (nonatomic, retain) UIActivityIndicatorView *activityIndicator;
@property (nonatomic, retain) UILabel *status;
@property (nonatomic, retain) UITableView *mainTable;


- (IBAction) refresca: (id)sender;

- (void)getData: (NSString *)usuari: (NSString *)clau;

@end

in .m file is synthesized and released. appData is properly filled when connection request ends and then, when I reload tableview, when numberOfRowsInSection executed (while loop also in order to test), appData is empty!

- (void)requestFinished:(ASIHTTPRequest *)request {
    NSLog(@"%@", [request responseString]);

    self.appData = [[request responseString] componentsSeparatedByString: @"#"]; 

    int x =0;

    while (x<[appData count] - 1)
    {
        NSLog(@"Aplicaciones = %@",[appData objectAtIndex: x]);
        x = x+1;
    }

    [activityIndicator stopAnimating];
    activityIndicator.hidden = YES;
    status.hidden = YES;
    mainTable.hidden = NO;

    [mainTable reloadData];
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{     
    if ([appData count] != 0)
    {
        NSLog(@"Counter = %@",[appData objectAtIndex:0]);
    }

    return [appData count]-1;
}

Answer 1

A couple of things here.

Your test logging in numberOfRows will cause the app to hang if appdata ever has a non-zero count.

Are you sure you are getting the the same appData object that you populate in requestFinished ?

I suggest using the accessor in numberOfRows as in [self.appData count] which might sort out the problem.

And is there a specific reason you subtract one from the count? As you will lose one element from the array in the tableView that way