Delete All Prefs / Core Data

Question

I want to create a button in my application that will delete all entries in core data as well as all of the NSUserDefaults. What method would I use to do this?

possible duplicate of [NSUserDefaults reset](http://stackoverflow.com/questions/6358737/nsuserdefaults-reset) — jscs, Aug 23 '11 at 17:21
CoreData and User Defaults are two very different systems. Please separate these questions. — jscs, Aug 23 '11 at 17:21

score 2 · Accepted Answer · edited May 23 '17 at 11:43

2

This method:

[[NSUserDefaults standardUserDefaults] setPersistentDomain:[NSDictionary dictionary] forName:[[NSBundle mainBundle] bundleIdentifier]];

resets the defaults to the registration domain, which means that removeObjectForKey is called to all the keys. I found it from this link. Hope that helps!

edited May 23 '17 at 11:43

Community

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answered Aug 23 '11 at 16:48

msgambel

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score 0 · Answer 2 · answered Aug 23 '11 at 16:46

0

Here's what I use for NSUserDefaults:

for (NSString* k in [[[NSUserDefaults standardUserDefaults] dictionaryRepresentation] allKeys])
    [[NSUserDefaults standardUserDefaults] removeObjectForKey:k];

answered Aug 23 '11 at 16:46

dorianj

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Delete All Prefs / Core Data

2 Answers2