iOS UIcollectionView Problem

[erdinc27]

I have a weird problem with collectionView. I load collectionView in this way.

- (void)viewDidLoad { 
    [super viewDidLoad];
    self.achievements = [self createAchievementsObjects];
    [self.achievementsCollectionView reloadData];
}

and those are the delegate methods

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    AchievementCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"achievementCell" forIndexPath:indexPath];
    [cell setUpTheCellWithAchievement:self.achievements[indexPath.row]];
    return cell;
}

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

- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section {
    return 10;
}

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
    
    NSInteger width = (self.view.frame.size.width - 40 ) / 3;
    return CGSizeMake(width, width);
}

it displays only 15 cells and when i scroll down notihg is shown. What is wrong here ?

 

[MarkCollette]

If you put breakpoints or NSLog statements in collectionView:layout:sizeForItemAtIndexPath and collectionView:cellForItemAtIndexPath where you inspect all of the values you're using, what do you see?