ios - Emoji Coming from server is not getting fetched -


in app using webservice it's response contains emoji. response get's break , got nothing in response. can 1 help! code:=

 if ([[appdelegate instance] checkinternetconnection]) {         nsmutabledictionary *dictparam = [nsmutabledictionary dictionary];         [dictparam setvalue:_str_eventid forkey:@"event_id"];         [dictparam setvalue:[self.dict_logindata valueforkey:@"id"] forkey:@"uid"];         nserror *error;         nsdata *jsondata = [nsjsonserialization datawithjsonobject:dictparam                                                            options:nsjsonwritingprettyprinted // pass 0 if don't care readability of generated string                                                              error:&error];         nsstring *jsonstring = [[nsstring alloc] initwithdata:jsondata encoding:nsutf8stringencoding];          nslog(@"json string %@",jsonstring);            if (jsondata) {             [[appdelegate instance] showloadinghud:loading];             nsmutableurlrequest *request = [nsmutableurlrequest requestwithurl:[nsurl urlwithstring:api_barflyerdetail]cachepolicy:nsurlrequestreloadignoringcachedata  timeoutinterval:60.0];             [request sethttpmethod:@"post"];              [request sethttpbody:jsondata];                 [request setvalue:app_token forhttpheaderfield:@"token"];              afhttprequestoperation *op = [[afhttprequestoperation alloc] initwithrequest:request];             op.responseserializer = [afjsonresponseserializer serializer];             op.responseserializer.acceptablecontenttypes = [nsset setwithobjects:@"text/plain",@"text/html",@"application/json", nil];             [op setcompletionblockwithsuccess:^(afhttprequestoperation *operation, id responseobject) {                 [[appdelegate instance] hideloadinghud];                 if ([[responseobject valueforkey:@"success"] integervalue]==1) {                     arrflyerdetails = [responseobject valueforkey:@"data"];                               }                 else {                     // [uialertview infoalertwithmessage:[responseobject valueforkey:@"message"] andtitle:app_name];                 }             }

when try convert emoji string in nsdata return nil.so save emoji in utf8 string on server.now can decode string , emoji.

how decode utf8 string in iphone


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