Get to grips with Auto Layout using practical examples and code.
In this technique project you're going to learn more about Auto Layout, the powerful and expressive way iOS lets you design your layouts. We used it in project 2 to make sure our flag buttons were positioned correctly, but that project has a problem: if you rotate your device, the flags don't fit on the screen!
So, we're first going to fix project 2 so that it demonstrates more advanced Auto Layout techniques (while also making the flags stay on the screen correctly!), then take a look at ways you can use Auto Layout in code.