Why do my table view cells disappear when reloaded using reloadRowsAtIndexPaths?

Question

I have a bare-bones sample project here:

http://dl.dropbox.com/u/7834263/ExpandingCells.zip

In this project, a UITableView has a custom UITableViewCell. In each

Answer 1

When you use this method, you have to be sure that you are on the main thread. Refreshing a UITableViewCell as follow should do the trick :

- (void) refreshTableViewCell:(NSNumber *)row
{
    if (![[NSThread currentThread] isMainThread])
    {
        [self performSelector:_cmd onThread:[NSThread mainThread]  withObject:row waitUntilDone:NO];
        return;
    }

    /*Refresh your cell here
     ...
     */

}