Editing file in bundle, objective c [duplicate]

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Possible Duplicate:

Writing into a file objective c

in my application开发者_如何转开发 i've a xml file and a sql file in the bundle of the app, i drop them in Resource folder.

I want to edit the in my app, i need to put them on Documentens folder on first startup?

Thanks.

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Yes. You can't modify anything in the app bundle -- you must first copy it to a writeable directory, usually the app's Documents folder.