ios-png-check

A simple utility to check that your @2x iOS PNG assets targeting iPhone 4 are in a good shape.

Note: This is a ruby gem. A Python version can be found in the contrib/ folder. It has been kindly contributed by Matt Galloway.

$ gem update --system
$ gem install ios-png-check

$ cd folder-where-you-have-your-png-assets
$ ios-png-check

For each PNG image in the current folder it tries to find a @2x version and checks that the size of the @2x version is twice the size of the @1x version.

When done it outputs the summary of possible issues.

FILES WITHOUT @1x VERSION ============================================
status-new@2x.png

FILES WITHOUT @2x VERSION ============================================
Icon-Small.png
logo.png
message-bubble-left.png
message-bubble-right.png
no-photo-icon-boy-small.png
no-photo-icon-girl-small.png
nofriendsbg.png
profile-gallery-super-star.png
send-button.png
share-on-network-bounds-rect.png

INVALID IMAGE SIZES DETECTED FOR THE FOLLOWING FILES =================
dashboard-checkin-button-full@2x.png: SIZE IS 506 x 94, EXPECTED 596 x 94

• Fork the project.
• Make your feature addition or bug fix.
• Add tests for it. This is important so I don't break it in a future version unintentionally.
• Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
• Send me a pull request. Bonus points for topic branches.

Copyright (c) 2010 Andrey Subbotin. See LICENSE for details.