Great iOS Design Cheat Sheet

Here is a handy design cheat sheet from that includes screen resolutions, PPI, icon sizes, bar sizes (both nav and tab), and more. As someone who constantly forgets the height of the iPhone 5/5S screen and can’t remember icon dimensions to save my life I am very appreciative for cheat sheets like this. 

I went ahead and added this link to my iOS resource list so I can stop Googling for those measurements every 2-3 weeks.


No Identities Were Available Error When Validating an Archive in Xcode

Ran into an incredibly annoying issue the other night when trying to upload an app to the App Store for review. When I would try to validate the archive it would give an error saying “No identities were available” and “An administrator must request identities before they can be downloaded.”

After fiddling around for a bit not making any progress I found a great post from Anthony Tietjen on how to troubleshoot validation issues. After the bundle IDs matched everything ran smoothly, I was able to get the app validated and uploaded without any further issues.