iOS Development Notes

Apple Push Notification Generate PEM files.
http://www.hksilicon.com/kb/articles/17830/Apple-Push-Notification

Error: The model used to open the store is incompatible with the one used to create the store

This error happened may be the core data entities or attributes changed. Try to remote the app in simulator and try again. It can be solved.

11 March 2012

iPhone Element Sizing Reference