IOS nsdictionary <--> nsstring (JSON) in OBJC

Source: Internet
Author: User

nsdictionary - nsstring

+ (nsstring*) Stringinjsonformatforobject: (ID) obj{NSData*jsondata =[nsjsonserialization datawithjsonobject:obj options:0 //If that option isn't set, the most compact possible JSON would be generatedError:nil]; NSString*jsonstring =[[NSString alloc] Initwithdata:jsondata encoding:nsutf8stringencoding]; Jsonstring= [jsonstring stringbytrimmingcharactersinset:[nscharacterset Whitespaceandnewlinecharacterset]];//remove the white and trailing whitespace characters and newline characters    returnjsonstring;}

nsstring - nsdictionary

+ (Nsdictionary *) dictforjsonstring: (NSString *) str{    *jsondata = [str datausingencoding: Nsutf8stringencoding];     *err;     *dic = [nsjsonserialization jsonobjectwithdata:jsondata                                                        options:nsjsonreadingmutablecontainers                                                          Error: Nil];     return DiC;}

IOS nsdictionary <--> nsstring (JSON) in OBJC

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