我有一个使用XIB文件创建的自定义UICollectionViewCell.tap时如何使该单元格将另一个控制器推入堆栈

Question

I can't drag and create a segue in interface builder as this is an XIB file. Basically I have a UICollectionView that has two layouts. The standard layout uses a uses one custom cell and the other layout users another custom cell.

The first custom cell was easy to connect up as it wasn't an XIB file so I just dragged and connected it up to the detail view I wanted to push to when it was tapped. However the second custom cell is the XIB one and there can't be connected up this way.

This is my collection view cellForRowAtIndexPath method:

-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath object:(PFObject *)object
{

  //      NSLog(@"cellForItemAtIndexPath");

        static NSString *CellIdentifier = @"Cell";
        static NSString *CellIdentifier2 = @"Cell2";
        VAGGarmentCell *cell;

        if ([[_collectionView collectionViewLayout] isEqual: _flowLayout]) {
            cell = [_collectionView dequeueReusableCellWithReuseIdentifier: CellIdentifier forIndexPath:indexPath];
        } else if ([[_collectionView collectionViewLayout] isEqual: _flowLayout2]) {
            cell = [_collectionView dequeueReusableCellWithReuseIdentifier:CellIdentifier2 forIndexPath:indexPath];
            //       // Detect tap of image View
           UITapGestureRecognizer *gestureRecogniser = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(didTapGarmentCellTwoImage:)];
           [gestureRecogniser setNumberOfTapsRequired:1];
           [[cell imageView] addGestureRecognizer:gestureRecogniser];
           [[cell imageView] setUserInteractionEnabled: YES];
        }

        [[cell activityIndicator] startAnimating];

        PFFile *userImageFile = [object valueForKey:@"image"];
        [[cell imageView] setFile: userImageFile];
        [[cell imageView] loadInBackground];

        [[cell activityIndicator] stopAnimating];

        [[cell title] setText:[object valueForKey:@"title"]];
        [[cell price] setText:[NSString stringWithFormat: @"£%@ GBP", [object valueForKey:@"price"]]];

        // if database favourites status is equal to one then set highlighted to (yes)
        UIButton *addFavouriteButton = [cell addFavouriteButton];



       BOOL objectFavourited = [object[@"favourite"] boolValue]; // I set this when add fav button is tapped
       [addFavouriteButton setSelected: objectFavourited];


       [addFavouriteButton addTarget:self action:@selector(addFavouriteButtonTapped:) forControlEvents:UIControlEventTouchUpInside];

       return cell;
}

- (void)didTapGarmentCellTwoImage:(UITapGestureRecognizer *)sender
{
    [self performSegueWithIdentifier:@"garmentDetailSegue" sender:self];
}

This way is giving me an error:

[UITapGestureRecognizer _layoutAttributes]: unrecognized selector sent to instance 0xc7f3290'

This just seems messy. Is there a better way to do this? Dragging and connecting with the other cell was so much easier.

Answer 1

Have you tried to use collectionView:didSelectItemAtIndexPath: without adding TapGesture on your cell.

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
if ([[_collectionView collectionViewLayout] isEqual: _flowLayout]) {
    //do  what you want with the other cell selection
} 
else if ([[_collectionView collectionViewLayout] isEqual: _flowLayout2]) {
    [self performSegueWithIdentifier:@"garmentDetailSegue" sender:self];
}

}