ios - How can we get SBJSON connectionDidFinishLoading method inside array or Dictionary data in another class -

i want 1 class array data in class(i.e connectiondidfinishloading array data want in mainview class)

backgroundclass.h

#import <uikit/uikit.h> #import "json.h" @interface backgroundclass : uiviewcontroller<nsurlconnectiondatadelegate> @end   backgroundclass.m  @interface backgroundclass ()     {         nsmutabledata * webdata;         nsurlconnection * connection;         nsmutablearray * array;     }      @end          @implementation backgroundclass          - (void)viewdidload {              array = [[nsmutablearray alloc]init];              nsurl * url  = [nsurl urlwithstring:@"http://api.kivaws.org/v1/loans/search.json?status=fundraising"];              nsurlrequest * request = [nsurlrequest requestwithurl:url];              connection = [nsurlconnection connectionwithrequest:request delegate:self];              if(connection)             {                 webdata = [[nsmutabledata alloc]init];             }             [super viewdidload];         }          - (void)connection:(nsurlconnection *)connection didreceiveresponse:(nsurlresponse *)response {             [webdata setlength:0];         }          - (void)connection:(nsurlconnection *)connection didreceivedata:(nsdata *)data {             [webdata appenddata:data];         }          - (void)connection:(nsurlconnection *)connection didfailwitherror:(nserror *)error {             nslog(@"error %@",[error localizeddescription]);         }         - (void)connectiondidfinishloading:(nsurlconnection *)connection {               nsstring * alldatadictionbary = [[nsstring alloc] initwithdata:webdata encoding:nsutf8stringencoding];              nsdictionary * responsestring = [alldatadictionbary jsonvalue];              nsarray * alltweets = [responsestring objectforkey:@"loans"];               (nsdictionary * obj in alltweets) {                  nsdictionary * act=[obj objectforkey:@"location"];                 nsdictionary * act1 = [ act objectforkey:@"geo"];                 nsstring * level = [act1 objectforkey:@"pairs"];                  //nsdictionary * act = [obj objectforkey:@"description"];                 //nsarray * languages = [act objectforkey:@"languages"];                 //nsstring * name = [[languages objectatindex:obj]objectforkey:@"name"];                 [array addobject:level];             }              nslog(@"act array %@",array);         }          - (void)didreceivememorywarning {             [super didreceivememorywarning];         }         @end   connectiondidfinishloading methods inside  array data want in mainview class how can please me 1 else 

mainview.h

#import

@interface viewcontroller2 : uiviewcontroller

@end

mainview.m

import "viewcontroller2.h"

    @interface viewcontroller2 ()      @end      @implementation viewcontroller2      - (void)viewdidload {         [super viewdidload];      }     - (void)didreceivememorywarning {         [super didreceivememorywarning];     }      @end 

notification

you can use nsnotificationcenter send notification connection class. , in main view controller add observer notification. there 2 options pass data via nsnotification userinfo dictionary & object arg in notification object.

http://nshipster.com/nsnotification-and-nsnotificationcenter/

delegation

create delegate , assign main vc delegate & call delegate method data response

http://www.tutorialspoint.com/ios/ios_delegates.htm

once familiar above concepts have @ following options

blocks

http://www.appcoda.com/objective-c-blocks-tutorial/

rac signals (reactive cocoa)

http://nshipster.com/reactivecocoa/

edit - using delegate

backgroundclass.h

@protocol myconnectiodelegate <nsobject> //using id type here, nsarray or nsdictionary objects can passed -(void)didrecieveresponse:(id)acollection;  @end @interface backgroundclass : uiviewcontroller<nsurlconnectiondatadelegate> @property(weak, nonatomic)id<myconnectiodelegate>delegate; @end 

backgroundclass.m

   - (void)connectiondidfinishloading:(nsurlconnection *)connection {           ....          //once collection.           [_delegate didrecieveresponse:<thecollection>];       } 

viewcontroller2.m

@interface viewcontroller2 ()< myconnectiodelegate >      @end     @implementation viewcontroller2      - (void)viewdidload {         [super viewdidload]; //hope have object of backgroundclass created _backgroundclassobject.delegate = self;       }     - (void)didreceivememorywarning {         [super didreceivememorywarning];     }      -(void)didrecieveresponse:(id)acollection{ //you have collection sent background class }   @end