How to save application preferences in Mac OS?

Is there a native way to save preferences in Mac OS ?

Can I write preferences into application package content开发者_如何学Go directory ?

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The NSUserDefaults class is the standard way to save application preferences.

There are a number of tutorials / examples online (Google is your friend):

NSUserDefaults Tutorial

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The native way is to use NUSuserDefaults. You won't want to write into the application directory for a number of reasons, not least because different users can have different preferences.