为UITableViewCell增加按钮及处理按钮事件的方法

- (void)configureCell:(UITableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath
{
    UIImage *image = [UIImage imageNamed:@"test.png"];
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    CGRect frame = CGRectMake(0.0, 0.0, image.size.width, image.size.height);
    button.frame = frame;
    [button addTarget:self action:@selector(accessoryViewButtonClicked:) forControlEvents:UIControlEventTouchUpInside];
    [button setBackgroundImage:image forState:UIControlStateNormal];
    cell.accessoryView = button;
}

根据按钮的位置获得行数：

- (void)accessoryViewButtonClicked:(id)sender
{
    CGPoint hitPoint = [sender convertPoint:CGPointZero toView:self.tableView];
    NSIndexPath *hitIndex = [self.tableView indexPathForRowAtPoint:hitPoint];
    //...
}