This project shows the basics about how to create a custom UICollectionViewFlowLayout for a UICollectionView.

To cover most of the configurations you can encounter while working on a UICollectionView, I created 3 sections with 3 different layouts:

• section 1: a cell with fixed size
• section 2: a cell with a fixed width and a dynamic length
• sections 3 & 4: multiple cells aligned on a grid, with fixed size

I also added resizable headers in the sections 3 and 4.

You will find all the details about the project in 2 tutorials:

• UICollectionView Custom Layout: the Ultimate Tutorial - Part 1: how to create the UICollectionView. It's an easy prerequisite for Part 2.
• UICollectionView Custom Layout: the Ultimate Tutorial - Part 2: how to create the UICollectionViewFlowLayout... and how it works!

This project works on all iPhones and iPad (portrait, landscape, and with multitasking). Give it a try!

You can ping me on Twitter @cath_schwz, open an issue on GitHub or leave a comment on my blog strawberrycode.com :)