didSelectRowAtIndexPath使用Viiew委托不工作在iPad IOS SDK 8上，有什么想法吗？

Question

在以前版本中运行良好的漂亮基本代码已停止工作。在从核心数据获取中选择第一个或两个对象后，didSelectRowAtIndexPath停止响应。没有警告，错误或冻结，只是没有回应。没有视图委托的相同代码在iPhone上正常工作。任何帮助将不胜感激！

- (void)viewDidLoad
{
    [super viewDidLoad];

    self.title = self.payment.name;
    self.paymentNameTextField.text = self.payment.name;

    [paymentView setDelegate:self];
    [paymentView setDataSource:self];
    [self setupFetchedResultsController];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    SimpleCell *cell = (SimpleCell *)[tableView dequeueReusableCellWithIdentifier:@"Cell"];
    payment = [self.fetchedResultsController objectAtIndexPath:indexPath];

    cell.nameBasicLabel.text =self.payment.name;

    return cell;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

    self.payment = [self.fetchedResultsController objectAtIndexPath:indexPath];
    self.paymentNameTextField.text = self.payment.name;
    [self viewDidLoad];

}