UICollectionView with dynamic height not getting same space between cell

Question

I am having similar problem like this

I am generating height of view at run time.Here is my code

@interface CollectionViewController ()
{
    NSMutableAr         


        

Answer 1

The class that you inherited from UICollectionViewFlowLayout must contain methods :

- (CGSize)collectionViewContentSize
{
    return CGSizeMake(200, 200) // as per your cell size
}

- (NSArray *)layoutAttributesForElementsInRect:(CGRect)rect
{
    NSArray* attributesToReturn = [super layoutAttributesForElementsInRect:rect];
    for (UICollectionViewLayoutAttributes* attributes in attributesToReturn)
    {
        if (nil == attributes.representedElementKind)
        {
            NSIndexPath* indexPath = attributes.indexPath;
            attributes.frame = [self layoutAttributesForItemAtIndexPath:indexPath].frame;
        }
    }
    return attributesToReturn;
}

- (UICollectionViewLayoutAttributes *)layoutAttributesForItemAtIndexPath:(NSIndexPath *)indexPath
{
    UICollectionViewLayoutAttributes* currentItemAttributes =
    [super layoutAttributesForItemAtIndexPath:indexPath];

    if (!currentItemAttributes)
    {
        currentItemAttributes = [UICollectionViewLayoutAttributes
                                 layoutAttributesForCellWithIndexPath:indexPath];
    }
    return currentItemAttributes;
}

And in Your CollectionViewController add

#pragma mark - Collection View Datasource

- (CGSize)collectionView:(UICollectionView *)collectionView
                  layout:(UICollectionViewLayout  *)collectionViewLayout
  sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
    // Adjust cell size for orientation
    if (UIDeviceOrientationIsLandscape([[UIApplication sharedApplication] statusBarOrientation]))
    {
        return CGSizeMake(150, 230);
    }
    return CGSizeMake(150, 230);
}