The accessories provided to you by the iOS SDK are not sufficient, and you would like to create your own accessories.

Assign an instance of the UIView class to the accessoryView property of any instance of the UITableViewCell class:

- (UITableViewCell *)tableView:(UITableView *)tableView
         cellForRowAtIndexPath:(NSIndexPath *)indexPath{
  
  UITableViewCell* result = nil;
  
  static NSString *MyCellIdentifier = @"SimpleCell";
  
  /* We will try to retrieve an existing cell
   with the given identifier */
  result = [tableView dequeueReusableCellWithIdentifier:MyCellIdentifier];
  
  if (result == nil){
    result = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
                                    reuseIdentifier:MyCellIdentifier];
  }
  
  result.textLabel.text = [NSString stringWithFormat:@"Section %ld, Cell %ld",
                           (long)indexPath.section,
                           (long)indexPath.row];
  
  UIButton *button = [....