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Asked: 2026-05-10T23:34:21+00:00

I’m implementing saved data on my app by using NSUserDefaults, like this: [[NSUserDefaults standardUserDefaults]

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I’m implementing saved data on my app by using NSUserDefaults, like this:

[[NSUserDefaults standardUserDefaults] registerDefaults:[NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithInt:0],@'mySetting',nil]]; // check int firstLaunch = [[NSUserDefaults standardUserDefaults] integerForKey:@'mySetting']; // set [[NSUserDefaults standardUserDefaults] setInteger:1 forKey:@'mySetting'];

Now for development purposes, I’d like to be able to remove the saved data and go back to the defaults, without having to remove the app and re-install it each single time. Is there a quick way to do that? I thought resetStandardUserDefaults would do the job, but it doesn’t.

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1 Answer

  1. For the key which you wish to revert to the default, -removeObjectForKey: will remove its definition from the app preferences. All things being equal, this means that subsequent invocations of -<type>ForKey: will return the registered default.

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