UIActivityIndicator as Accessory View

activity_indicator_as_subview.m

#define SPINNER_SIZE 25
 
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
  UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
  UIActivityIndicatorView *spinner = [[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
 
  // Get center of cell (vertically) 
  int center = [cell frame].size.height / 2;
 
  // Size (width) of the text in the cell
  CGSize size = [[[cell textLabel] text] sizeWithFont:[[cell textLabel] font]];
 
  // Locate spinner in the center of the cell at end of text
  [spinner setFrame:CGRectMake(size.width + SPINNER_SIZE, center - SPINNER_SIZE / 2, SPINNER_SIZE, SPINNER_SIZE)];
  [[cell contentView] addSubview:spinner];    
 
  [spinner startAnimating];
  [spinner release];
 
  [self.tableView deselectRowAtIndexPath:[self.tableView indexPathForSelectedRow] animated:YES];
}

actvity_indicator_in_table_cells.m

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
  UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
 
  UIActivityIndicatorView *activityView = 
    [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
  [activityView startAnimating];
  [cell setAccessoryView:activityView];
  [activityView release];
 
  [self.tableView deselectRowAtIndexPath:[self.tableView indexPathForSelectedRow] animated:YES];
 
}