单击CollectionViewCell INSIDE a UITableViewCell时如何显示视图控制器

Question

I have a custom UITableViewCell that has a CollectionView with many collectionViewCells.

Xcode crashes when I click on each CollectionViewCell.

Thid code is in the CustomTableViewCell.m file

-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath{
    JTSImageInfo *imageInfo = [[JTSImageInfo alloc] init];

    imageInfo.imageURL = [[NSURL alloc] initFileURLWithPath:[self.fullSizeImagePath objectAtIndex:indexPath.item]];
    imageInfo.referenceRect = self.superview.frame;
    imageInfo.referenceView = self.superview;

    // Setup view controller
    JTSImageViewController *imageViewer = [[JTSImageViewController alloc]
                                           initWithImageInfo:imageInfo
                                           mode:JTSImageViewControllerMode_Image
                                           backgroundStyle:JTSImageViewControllerBackgroundOption_Scaled];

    // Present the view controller.
    [imageViewer showFromViewController:self transition:JTSImageViewControllerTransition_FromOriginalPosition];
    imageViewer = nil;
}

The showFromViewController line crashes.

Advice?

Answer 1

Your tableviewcell seems to be the collectionviews delegate/data source. This is generally not a good idea, so everytime you nest table/collectionviews inside cells the viewcontroller managing the outer collection should be the delegate/datasource for both. This way your viewcontroller implements the didSelectItemAtIndexPath and can present another VC

Answer 2

您可以在tableViewCell中添加CollectionViewController而不是CollectionView，这样您就可以呈现模态，并且您的单元格不会直接处理数据源/委托。