ios - Saving NSMutableArray in NSUserDefault gives nil -

ios - Saving NSMutableArray in NSUserDefault gives nil -

i have tried

to set :

nsuserdefaults *userdefaults = [nsuserdefaults standarduserdefaults]; [userdefaults setobject:mutarr forkey:@"userinfo"]; [userdefaults synchronize];

to :

nsmutablearray *retrievearray = [[nsmutablearray alloc] init]; retrievearray = [[[nsuserdefaults standarduserdefaults] arrayforkey:@"userinfo"] mutablecopy];

can tell me going wrong? thanks.

please seek below code.

for set :

nsmutablearray *arrcategorylistset = [[nsmutablearray alloc] initwithobjects:object1, object2, nil]; [[nsuserdefaults standarduserdefaults] setobject:arrcategorylistset forkey:@"categorylist"]; [[nsuserdefaults standarduserdefaults] synchronize];

for get:

nsmutablearray *arrcategorylistget = [nsmutablearray arraywitharray:[[nsuserdefaults standarduserdefaults] objectforkey:@"categorylist"]];

or

nsmutablearray *arrcategorylistget = [[nsuserdefaults standarduserdefaults] objectforkey:@"categorylist"];

ios nsmutablearray nsuserdefaults