How to set an UIActivityIndicatorView when loading a UITableViewCell

Question

I have two UITableViewControllers, A and B. When I tap one cell in table A, I will use UINavigationController to push table view controller B. But the data of B is downloaded from Internet, which takes several seconds. So I want to add a UIActivityIndicatorView when loading B. How can I achieve this?

Answer 1

You can add UIActivityIndicatorView as cell's accessoryView.

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    UIActivityIndicatorView *spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
    spinner.frame = CGRectMake(0, 0, 24, 24);
    UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
    cell.accessoryView = spinner;
    [spinner startAnimating];
    [spinner release];
}