For iOS and OSX devs. Do you really know how auto layout works? It is something I do but don't know how it works

I don't have a ton of experience building native iOS apps but from the limited amount I've done auto-layout was always a little hard to wrap my head around. It seems pretty powerful though!

It is power full. I'm not display agreeing that. But no good explanations for universal apps

I've been using autolayout for a while now and they're pretty cool. A few quick tips if I may:

1- it's always easier to set them up in Interface Builder than programmatically, because you can see how things will look like right away
2- a constraint with any priority below 1000 can be changed programmatically
3- change priorities instead of adding/activating/removing/deactivating constraints
4- classes can have IBOutlets to constraints

5- changes to constraints are animatable by wrapping a view.layoutIfNeeded() call in an animation closure
6- Regular constraints will affect iPads and iPhones 6 Pluses only and if present, otherwise fallback to Any Height or Width
7- iPads do not respond to Compact constraints unless the device is in multi-app mode
8- All other size classes are pertinent to iPhones only
9- when 2 constraints compete for the same layout parameter (width, height, x and y), the highest priority one will prevail

Hope this helps!

Thanks for the tips!