UICollectionView datasource methods not getting ca

Question

Here is my source code

- (id)initWithCollectionView:(UICollectionView *)collectionView
{
self = [super init];

if (self)
{
    self.collectionView = collectionView;
    self.collectionView.dataSource = self;
    self.collectionView.delegate = self;
    [self.collectionView registerClass:[TWNTweetCell class] forCellWithReuseIdentifier:kCell];
    self.collectionViewLayout = self.collectionView.collectionViewLayout;



    self.tweetArray = @[];
    self.tweetTextArray = @[];

    self.twitter = [STTwitterAPI twitterAPIOSWithFirstAccount];
}

return self;
}

#pragma mark - CollectionView
#pragma mark DataSource

-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
return 1;
}

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:      (NSInteger)section
{
return [self.tweetArray count];
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
TWNTweetCell *cell = (TWNTweetCell *)[collectionView dequeueReusableCellWithReuseIdentifier:kCell forIndexPath:indexPath];

NSDictionary *status = [self.tweetArray objectAtIndex:indexPath.row];

NSString *text = [status valueForKey:@"text"];

cell.usernameLabel.text = screenName;
//    cell.createdAtLabel.text = dateString;

cell.autoresizingMask = UIViewAutoresizingFlexibleWidth;

UITextView *textView = [self.tweetTextArray objectAtIndex:indexPath.row];
[cell setTweet:text withTweetTextView:textView];

return cell;
}

All the methods don't get interupted at all by breakpoints. The tweets are getting loaded in the log so I know everything else is ok, its just not recognizing the collection view. And yes i've set the

Anyone have any idea whats going on?

Answer 1

for swift do this , set a property

//MARK: props
let dataSource = MyDataSource()

and in

viewDidLoad(){
// your other code 
..
..
collectionView.dataSource = dataSource // it is a strong reference 
}

apart form these other general pitfall are

• not returning the count or the data source
• not populating the data source