iPhone - "Class" may not respond to "method"

Question

I am building a simple Navigation-based app using tables.

I have a custom "UITableViewCell" to customize the table cell data attached below.

@interface NewsCell : UITableViewCell 
{
    IBOutlet UILabel *newsTitle;
}
- (void)setNewsLabel:(NSString *)title;
@end

And then in my RootViewController, I set the text of the label "newsTitle" in "cellForRowAtIndexPath" method as follows.

static NSString *MyIdentifier = @"MyIdentifier";
MyIdentifier = @"NewsCell";

NewsCell *cell = (NewsCell *)[tableView dequeueReusableCellWithIdentifier:MyIdentifier];
if(cell == nil) 
{
   [[NSBundle mainBundle] loadNibNamed:@"NewsCell" owner:self options:nil];
   cell = newsCell;
}

[cell setNewsLabel:@"hello testing"];
return cell;

When I run this, the app runs fine, but I get "NewsCell may not respond to '-setNewsLabel:'" warning.

Please help! Thank you.

Answer 1

Where does the variable newsCell come from? Is it really of type NewsCell?

Answer 2

You're creating the nib, but not assigning it to anything. See this question to create it right.

Answer 3

In RootViewController.m, you need to `#import "NewsCell.h".

Or, stick #import "NewsCell.h" in your project's PCH (pre-compiled header) file.

The underlying issue is that the compiler only knows about methods that it has previously seen when parsing the header files (or ones in the PCH).