xcode - iOS: Passing parsed values from soap webservice in NSObject class back to UIViewController -

i don't know why being difficult can't work. here's simple problem:

i have uiviewcontroller calls paring class type of nsobject class parsing jobs.

i need parsed data values returned viewcontroller.

could body provide me simple step or suggestion this... need issue solved project , deadline near...

thanks here code:

viewcontroller.m

@implementation viewcontroller - (void)viewdidload {     [super viewdidload];     wsclass *ws = [[wsclass alloc] init];     [ws initparsing]; } 

wsclass.h

@interface projlistclass : nsobject  @property(nonatomic,strong) nsstring * project_id; @property(nonatomic,strong) nsstring * short_descr; @property(nonatomic,strong) nsstring * location; @end;  @interface wsclass : nsobject <nsxmlparserdelegate>{ projlistclass *proj_obj; projlistclass *prj;  nsmutabledata* webdata; nsmutablestring *soapresults; nsurlconnection *conn;  nsxmlparser *xmlparser;  } @property(nonatomic,strong) nsmutablearray * arrhouses; @property(nonatomic, strong)     nsxmlparser *xmlparser;  -(void) initparsing; @end 

wsclass.m

#import "wsclass.h"  @implementation projlistclass @synthesize project_id, short_descr, location; @end  @implementation wsclass  @synthesize arrhouses, xmlparser;  -(void) initparsing{     [uiapplication sharedapplication].networkactivityindicatorvisible = yes;      soapresults = [[nsmutablestring alloc] init];     arrhouses=[[nsmutablearray alloc]init];      nsstring *soapmessage = [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"                          "<projects_list xmlns=\"http://tempuri.org/\"/>\n"                          "</soap:body>\n"                          "</soap:envelope>\n"];    nsurl *url = [nsurl urlwithstring:@"http://192.168.0.10:8056/wservices.asmx"]; nsmutableurlrequest *therequest = [nsmutableurlrequest requestwithurl:url]; nsstring *msglength = [nsstring stringwithformat:@"%d", [soapmessage length]];  [therequest addvalue: @"text/xml; charset=utf-8" forhttpheaderfield:@"content-type"]; [therequest addvalue: @"http://tempuri.org/projects_list" forhttpheaderfield:@"soapaction"]; [therequest addvalue: msglength forhttpheaderfield:@"content-length"]; [therequest sethttpmethod:@"post"]; [therequest sethttpbody: [soapmessage datausingencoding:nsutf8stringencoding]];  conn = [[nsurlconnection alloc] initwithrequest:therequest delegate:self]; if( conn ) {     webdata = [nsmutabledata data]; } else {     nslog(@"theconnection null"); }    } .... .... .... -(void)connectiondidfinishloading:(nsurlconnection *)connection {    nsstring *thexml = [[nsstring alloc] initwithbytes: [webdata mutablebytes] length:[webdata length] encoding:nsutf8stringencoding];     if (xmlparser)   {     xmlparser=nil;   }   xmlparser = [[nsxmlparser alloc] initwithdata: webdata];   [xmlparser setdelegate: self];   [xmlparser setshouldresolveexternalentities:yes];   [xmlparser parse];  }   ....  ....  ....  -(void)parser:(nsxmlparser *)parser didendelement:(nsstring *)elementname  namespaceuri:(nsstring *)namespaceuri qualifiedname:(nsstring *)qname { ..... ..... .....  else if([elementname isequaltostring:@"projectslistdetails"]) {     [arrhouses addobject:proj_obj];     proj_obj=nil; }  soapresults = nil; soapresults = [[nsmutablestring alloc]init]; } 

see below steps give idea

1) inside nsobject class parsingmodel class, create protocol inside parsing class doing parsing. give name whatever want.

   @protocol  webserviceresponsedelegate <nsobject>     @optional   - (void)didrecieveresponsedata:(nsmutablearray*)array;    @end 

implement protocol parsing class @protocol webserviceresponsedelegate;

create property inside parsing class set delegate confirming class..

      @property   (nonatomic, assign) id<webserviceresponsedelegate>delegate; 

and need send parsed data confirming class i.e created parsing object

   //say didrecieveresponse method called when completed parsing of data   // - (void)didrecieveresponse   // {      //  if([delegate respondstoselector:@selector(didrecieveresponsedata)])  //    {   //    //pass populated datasource have parsed data.    //    [delegate didrecieveresponsedata:parseddata];  //    //  parseddata numtablearray or other datasource.    //} 

edit: see below delegate method called when finished paring successfully

  - (void)parserdidenddocument:(nsxmlparser *)parser{     //pass populated datasource have parsed data.        //before check whether delegate method confirmed class.      if([delegate respondstoselector:@selector(didrecieveresponsedata)])      {        [delegate didrecieveresponsedata:parseddata];      }     //  parseddata numtablearray or other datasource.     }   // called when parser has completed parsing. if encountered, parse successful.you need call 

2) , inside confirming class said uiviewcontroller dataviewcontroller define delegate method in dataviewcontroller.h adopt protocol dataviewcontroller<webserviceresponse>

and set delegate point @ creating parsing model class

  parsingmodel * paring = [parsingmodel alloc]init];   [paring setwebserviceresponsedelegate:self];   //definition of callback delegate method  - (void)didrecieveresponsedata:(nsmutablearray*)array  {  //here have parsed data can use want   } 

i hope clear you.