Android secret codes

http://joyofandroid.com/android-secret-codes-hidden-menu-dialler-codes/

110 secret android codes

http://joyofandroid.com/android-secret-codes-hidden-menu-dialler-codes/

Building a QR Code Generator with Core Image and Swift

http://www.appcoda.com/qr-code-generator-tutorial/

New Web Design and Development Resources: #6 April Edition

http://www.onextrapixel.com/2015/04/29/new-web-design-and-development-resources-6-april-edition/

3 cool CSS3 image hover effects

http://www.webdesignerdepot.com/2015/02/3-cool-css3-image-hover-effects/

Custom UITableViewCell for Text Input in Swift

http://www.andrewcbancroft.com/2015/02/12/custom-uitableviewcell-text-input-swift/

UITableView example in Swift

http://www.makemegeek.com/uitableview-example-swift/