iphone - iOS NSMutabledictionary is null when I setValue and forKey -


i know may been doing stupid can not figure out error on code:

nsstring *string=@"some string"; [self.dataresponse setvalue:string forkey:@"code"];

also tried:

nsstring *string=@"some string"; [self.dataresponse setobject:string forkey:@"code"];

but in both cases nsmutable dictionary self.dataresponse null. of knows i'm doing wrong?

i appreciate help.

you need alloc , init nsmutablearray set values in it. example:

self.dataresponse = [[nsmutablearray alloc] init]; // alloc , init  nsstring *string = @"some val"; [self.dataresponse setvalue:string forkey:@"code"];

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