Hour 16. Reading and Writing Data
What You’ll Learn in This Hour:
• Application sandbox restrictions
• Data storage locations
• Object archiving
• Data persistence with Core Data
Up to this point, the applications we’ve built have not allowed the user to create and store a lot of new data. Quite a few types of iPhone applications, however, do need to store a substantial amount of new information. Consider some of Apple’s applications, such as Notes and Contacts. These are data management applications whose main function is to reliably store and retrieve data for the user. Where does this data go when the application is not running? Just like with a desktop application, iPhone applications persist their data to the file system.
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