UICollectionView, simply fit cell to width?

Question

Here\'s a simple UICollectionView in yellow

The red arrow sets the wid

Answer 1

There is a simple way to do this. Here is the swift code. Assumes you want one item wide and in the example my cells are 64 pts high, and I want 8 pts for side margins, and finally collectionView is the name of your UICollectionView.

Insert this into viewDidLoad :

    let layout = collectionView?.collectionViewLayout as! UICollectionViewFlowLayout
    layout.itemSize = CGSize.init(width: (UIScreen.main.bounds.width - 16), height: 64.0)

This will set all the cells to default to that size. You can still override individual cells if you subclass UICollectionViewLayout or UICollectionViewFlowLayout, as mentioned in other answers. But if you simply want to have more table view like behavior this should work.

Answer 2

I my case cell inset making extra shapes

Answer 3

I think you need to take a look at

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

of UICollectionViewLayout where you can set size based on orientation and current frame.

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It would indeed seem that you simply have to do this in code.