Question

I am trying to get JSON data loaded from a NSURLConnection delegate to send the array of objects back to the tableview that called it.

The delegate object is initialized with callback to send back to

NSArray *returnArray;
ResultsTableRoot *callback;

JSON handling method

- (void)connectionDidFinishLoading:(NSURLConnection *)connection {      
    [connection release];

    NSString *responseString = [[NSString alloc] initWithData:responseData 
                                                     encoding:NSUTF8StringEncoding];
    [responseData release];

    NSError *error;
    SBJSON *json = [[[SBJSON alloc] init] autorelease];
    returnArray = [json objectWithString:responseString 
                                   error:&error];
    [responseString release];

    //////////////////////////////////////////////
    // Send data back to table view
    [callback resultsArrayReciever:returnArray];
}  

The array can’t be accessed from here, the tableview I want to have the information, however the method is called

-(void)resultsArrayReciever:(NSArray *)array {
    // Code executed    
    if(array) {
         // Code never executes, array isnt there
    }
}  

If you have a better way to go about this whole thing, it is more than welcome!!

Answer 1

1. Check the NSError instance to see if there wasn’t some problem while deserializing the JSON;

2. Try retaining the object:

   NSError *error;
   SBJSON *json = [[SBJSON new] autorelease];
   returnArray = [[json objectWithString:responseString error:&error] retain];
   [responseString release];
   [callback resultsArrayReciever:returnArray];
   [returnArray release];