objective c - Multiple UIPickerview in single UIViewController can't add soap response -

in application have 3 uipickerview , data added using soap web service,response getting ok can't add in picker view,i'm new objectives programming,please suggest me.   here post code.  - (void)viewdidload {     [super viewdidload];      picker1 = [[uipickerview alloc] init];     [self.view addsubview:picker1];     _custompickerarray1 = [[nsmutablearray alloc] init];     [self dropdown]; } -(void)dropdown {     nslog(@"dropdown method call");      nsstring *envalope=[nsstring stringwithformat:@"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"                         "<soap:envelope xmlns:xsi=\"http://www.w3.org/2001/xmlschema-instance\" xmlns:xsd=\"http://www.w3.org/2001/xmlschema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n"                         "<soap:body>\n"                         "<value xmlns=\"http://tempuri.org/\">\n"                         “</value>\n"                         "</soap:body>\n"                         "</soap:envelope>"];      envalope=[nsstring stringwithformat:envalope];     nsdata *envelope = [envalope datausingencoding:nsutf8stringencoding];      nsstring *url = @“abc.asmx";      nsmutableurlrequest *request1 = [nsmutableurlrequest requestwithurl:[nsurl urlwithstring:url] cachepolicy:nsurlrequestuseprotocolcachepolicy timeoutinterval:30.0];     } -(void) parser:(nsxmlparser *) parser didstartelement:(nsstring *) elementname namespaceuri:(nsstring *) namespaceuri qualifiedname:(nsstring *) qname attributes:(nsdictionary *)attributedict {     if( [elementname isequaltostring:@“valueresult"])     {         if (!soapresults)         {             soapresults = [[nsmutablestring alloc] init];         }         elementfound = yes;     }   } -(void)parser:(nsxmlparser *) parser foundcharacters:(nsstring *)string {     if (elementfound)     {         [soapresults appendstring: string];         nsarray * jsonarr =[nsjsonserialization jsonobjectwithdata:[string  datausingencoding:nsutf8stringencoding] options:0 error:nil];         nslog(@"print array :%@",jsonarr);         (nsdictionary * d in jsonarr)         {             if ([d objectforkey:@"clr"]!=[nsnull null])             {                 self.colorstring=[nsstring stringwithformat:@"%@",[d objectforkey:@"clr"]];                  nslog(@"pvalue clr :%@",self.colorstring);                 [_custompickerarray1 addobject:self.colorstring];                 nslog(@"pvalue after array fill:%d",_custompickerarray1.count);              }             else             {                 self.colorstring=@"";             }         }     }  } - (int)numberofcomponentsinpickerview:(uipickerview *)pickerview {     return 3; }  // number of rows of data - (int)pickerview:(uipickerview *)pickerview numberofrowsincomponent:(nsinteger)component {      if([pickerview tag]==1)     {          return _custompickerarray1.count;     }     else if([pickerview tag]==2)     {         return _custompickerarray1.count;     }else if([pickerview tag]==3){        return _custompickerarray1.count;     } } - (nsstring*)pickerview:(uipickerview *)pickerview titleforrow:(nsinteger)row forcomponent:(nsinteger)component {     if([pickerview tag]==1)     {         return _custompickerarray1[row];     }     else if([pickerview tag]==2)     {         return _custompickerarray1[row];     }else if([pickerview tag]==3){        return _custompickerarray1[row];     }    } @end 

first i'm declare 3 picker view in xib , set datasource , delegate, , in background soap web service call add data in pickerview ,but soap response getting soap response set in nsmutablearray not represent in picker view.

when response , parse through parser write respective picker reload method datasource methods call , data fill in respective picker.

[picker reloadallcomponents]; 

hope help.