iphone - Does NSUserDefaults delete keys, that are not needed temporarily? -


i'm storing data in nsuserdefaults. i'm trying store keys specific prefix in array. therefore, first load userdefaults in dictionary. 

nsstring *myprefix = @"prefix"; nsuserdefaults *defaults = [nsuserdefaults standarduserdefaults]; nsdictionary *dict = [defaults dictionaryrepresentation]; (nsstring *keywithprefix in dict.keyenumerator) {     if ([keywithprefix hasprefix: myprefix]) {         [relevantkeys addobject: keywithprefix];     } }

the problem is: when print "dict" (which represents userdefaults). there keys missing. nsuserdefaults delete keys, not needed temporarily?

nope not, nsuserdefault persistance storage, please read following answer has explanation how persistent [nsuserdefaults standarduserdefaults]?


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