Andrey Subbotin: iPhone 4 @2x assets made easy

We were updating our app’s graphics for the gorgeous screen of iPhone 4 the other day and it was a pain to update all the 163 PNG files we had and not to miss a thing.

So, I’ve come up with a simple Ruby script that checks that for each @1x image you have a properly sized @2x image.

Man, such a life saver. sudo gem install ios-png-check is the path to bliss.