Auto delete App Preference file upon closing App?

Discussion in 'Mac Programming' started by Jack Flash, Aug 14, 2007.

  1. macrumors 65816

    May 8, 2007
    Is there a way to have OS X auto-delete a .plist file when an Application is closed?
  2. macrumors 603


    Aug 2, 2002
    Cork, Ireland.
    I'm not sure why you'd want to do this, but it can be done easily enough.

    - If you haven't already done so, you need an object acting as the application's delegate i.e.
    [[NSApplication sharedApplication] setDelegate:self];
    - Then you need to implement applicationWillTerminate, and put your code in there.

    - You could hard code the path of the preference file by looking in ~/Library/Preferences; but the correct way might be to use NSUserDefaults method removePersistentDomainForName (I haven't tried it, so I'm not sure if that deletes the preference file, but I expect it would).
  3. macrumors G4


    Nov 3, 2005
    You could use the delegate of [NSApplication sharedApplication] as described above to store the revelent information rather than using preferences, and that is lost when the application closes ;).

    PS [NSApplication sharedApplication] can be accessed with the constant NSApp.

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