Subclass UICollectionViewCell with xib

Question

I am trying to subclass a UICollectionViewCell with associated xib, I do this: I created a new xib file and I added a UICollectionViewCell to it, then I created this subclass file:

 @interface MyCell : UICollectionViewCell @property (weak, nonatomic) IBOutlet UILabel *label; @end 

I also linked the MyCell class in the interface constructor in the user class of the file owner, and I added UILabel , and then I do this in my UICollectionView viewDidLoad:

 [self.collectionView registerClass:[MyCell class] forCellWithReuseIdentifier:@"MyCell"]; UINib *cellNib = [UINib nibWithNibName:@"MyCell" bundle:nil]; [self.collectionView registerNib:cellNib forCellWithReuseIdentifier:@"MyCell"]; 

As in this:

 - (UICollectionViewCell *)collectionView:(UICollectionView *)cv cellForItemAtIndexPath:(NSIndexPath *)indexPath { MyCell *cell = (MyCell*)[cv dequeueReusableCellWithReuseIdentifier:@"MyCell" forIndexPath:indexPath]; cell.label.text = @"Cell Text"; return cell; } 

However, this will not work, I get this error:

 *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<NSObject 0x907eca0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key label.' 

What did I do wrong? How to subclass UICollectionViewCell to xib and display it in UICollectionView ?

EDIT:

I'm doing it:

 - (UICollectionViewCell *)collectionView:(UICollectionView *)cv cellForItemAtIndexPath:(NSIndexPath *)indexPath { NSString *identifier = @"MyCell"; static BOOL nibMyCellloaded = NO; if(!nibMyCellloaded) { UINib *nib = [UINib nibWithNibName:@"MyCell" bundle: nil]; [cv registerNib:nib forCellWithReuseIdentifier:identifier]; nibMyCellloaded = YES; } MyCell *cell = (MyCell*)[cv dequeueReusableCellWithReuseIdentifier:@"MyCell" forIndexPath:indexPath]; cell.labelCell.text = @"Text"; return cell; } 

Answer 1

Make sure the cell in the .xib file knows what type of cell.

Select a cell in the interface builder

and then in the identity inspector

Subsequently associate your tags with your properties. (I think you already did it)

Then I would recommend checking if the .xib file is uploaded using your cellForItemAtIndexPath: method cellForItemAtIndexPath:

 NSString *identifier = @"MyCell"; static BOOL nibMyCellloaded = NO; if(!nibMyCellloaded) { UINib *nib = [UINib nibWithNibName:@"MyCell" bundle: nil]; [cv registerNib:nib forCellWithReuseIdentifier:identifier]; nibMyCellloaded = YES; } 

Answer 2

You can find the answer in this UICollectionView document adding a UICollectionCell .

Only the UICollectionView inside the StoryBoard has the UICollectionViewCell inside. If you use XIB, create a new XIB with CellName.xib, add CollectionViewCell to it, specify the name of the user class UICollectionView. After that use registerNib.Sample code: https://github.com/lequysang/TestCollectionViewWithXIB