JSON Parsing

This "startloadingdata" method is use for external knowledge only.. here this method start operation with "loadJsonData" Method..

-(void)startloadingdata

{

      appdelegate.activityView.hidden=FALSE;

      NSOperationQueue *queue = [[NSOperationQueue alloc]init];

      NSInvocationOperation *operation = [[NSInvocationOperation alloc] initWithTarget:self             selector:@selector(loadJsonData) object:nil];

      [queue addOperation:operation];

      [operation release];

      [queue release];

}

-(void)loadJsonData{

     NSURL *jsonURL = [NSURL URLWithString:yourURL];

     NSLog(@"url :%@",jsonURL);

     NSString *jsonData = [[NSString alloc] initWithContentsOfURL:jsonURL];

    NSMutableDictionary *dict = [[NSMutableDictionary alloc]init];

    if(jsonData == nil){

       NSLog(@"Data NIL.....");

    }

    else{

       SBJSON  *json = [[SBJSON alloc] init];

      NSError *error = nil;

      dict = [json objectWithString:jsonData error:&error];

      [json release];

   }

   [jsonData release];

    if ([dict isKindOfClass:[NSMutableDictionary class]]) {

        Result =[dict objectForKey:@"any_dict_key"];

        [Result retain];

        NSLog(@"Respoonse : %@",Result);

        

        [self performSelectorOnMainThread:@selector(loadDataDone) withObject:nil waitUntilDone:YES];

        

    }

    else{

        appdelegate.activityView.hidden = TRUE;;

    }

}

here Result is object of NSMutableArray

-(void)loadDataDone{

     if([Result count]>0)

    {

            listOfItems=[[NSMutableArray alloc]init];

           for(int j=0;j<[latersArray count];j++){

           NSMutableArray *tempArray = [[NSMutableArray alloc] init];

           for(int i=0;i<[Result count];i++){

           NSDictionary *dict = [Result objectAtIndex:i];

            if([[[dict objectForKey:@"dap_title"] substringToIndex:1] isEqualToString:[latersArray objectAtIndex:j]]){

                  [tempArray addObject:dict];

           }

     }

     [listOfItems addObject:tempArray];

     [tempArray release];

tempArray=nil;

}

        

//NSLog(@"listofitem %@",listOfItems);

[tblview reloadData];

}

else{

}

self.view.userInteractionEnabled=TRUE;

self.navigationItem.hidesBackButton=FALSE;

appdelegate.activityView.hidden=TRUE;

}