Cannot set text color of Send and Cancel buttons in the mail composer when presented from the UIActivityViewController in iOS7

http://stackoverflow.com/questions/19368122/cannot-set-text-color-of-send-and-cancel-buttons-in-the-mail-composer-when-prese

http://stackoverflow.com/questions/19368122/cannot-set-text-color-of-send-and-cancel-buttons-in-the-mail-composer-when-prese

How to show and hide static cells with uiswitch

http://blog.apoorvmote.com/how-to-show-and-hide-static-cells-with-uiswitch/?lang=zh-tw