collectionView，didSelectItemAtIndexPath有些问题

Question

我想推下一个控制器，但不成功。我该怎么办？

-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
    UICollectionViewCell *cell = [collectionView cellForItemAtIndexPath:indexPath];

    NSInteger section = indexPath.section, row = indexPath.row;

 if (section == 1) {

        if (row == 0) {

            DetailsViewController *  DetailsVC = [DetailsViewController alloc]init];

            [self.navigationController pushViewController: DetailsVC animated:YES];
        } else if (row == 1) {
              }
    } else if 
(section == 2) {

    }

}

Answer 1

你必须为viewcontroller设置标识符并调用类似

的方法

 CallViewController *vc=[self.storyboard instantiateViewControllerWithIdentifier:@"CallViewController"];

[self.navigationController pushViewController:vc animated:YES];

并确保您已嵌入导航视图控制器。