UICollectionView使用不同高度的单元格

Question

So I have a collection view controller that has 3 cells because each cell will have a different layout. My image shows this:

They all have different cell identifiers so in my cellForItemAtIndexPath function I can create the specific cell like:

-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
UICollectionViewCell *cell;


    if(indexPath.row == 0)
    {
        static NSString *identifier = @"Cell1";
        cell = [collectionView dequeueReusableCellWithReuseIdentifier:identifier     forIndexPath:indexPath];
        [cell setNeedsLayout];
    }
    else if(indexPath.row == 1)
    {
        static NSString *identifier = @"Cell2";
        cell = [collectionView dequeueReusableCellWithReuseIdentifier:identifier forIndexPath:indexPath];
        [cell setNeedsLayout];
    }
    else
    {
        static NSString *identifier = @"Cell3";
        cell = [collectionView dequeueReusableCellWithReuseIdentifier:identifier forIndexPath:indexPath];
        [cell setNeedsLayout];
    }

    return cell;
}

But when I simulate it, all the cells come out the same size:

Is there a way to force the cell to be the size I have defined or is there a more appropriate way of doing this?

Answer 1

Try this : Custom layout for different cell sizes in UICollectionView

or use this method :

-(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath;