Question

I have a weird box showing up when building for iOS 5. I am making one of my apps compatible for iOS 5 (originally built for iOS 4) so I got the new XCode and built it and it looks like this. Any idea what it is? It scrolls with the UITableView, but when it reaches the top it stops and you can see content through it. Any ideas?

Thanks,
Coulton

Answer 1

That looks like a section header. Make sure you don’t implement one of these methods in your delegate/data source:

- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section

Apple changed the behavior of section headers in iOS 5. In past versions, section headers were not shown if these methods returned nil. Starting with iOS 5, returning nil isn’t enough. You either don’t implement these methods, or set the header height to 0 (either using tableView.sectionHeaderHeight or by implementing tableView:heightForHeaderInSection:).