Question

I have a method which fetches data from server. I’m calling the method several times inside a loop. The problem is when i use instrument to check memory allocation, i have increase in live memory in each of the method call. BTW I am using ARC.

-(NSArray*)callService
{
    NSMutableURLRequest* request = [[NSMutableURLRequest alloc] initWithURL: serviceURL];
    [request setHTTPMethod:@"POST"];
    [request setValue:@"application/json; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
    [request setHTTPBody:requestData];
    [request setTimeoutInterval:30.0];
    NSURLResponse *response = NULL; 
    NSError *requestError = NULL;
    NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&requestError];

    NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
    NSArray *array = [(NSArray*) [responseString JSONValue] autorelease];
    responseString=nil;
    return array;
}

Answer 1

The problem was with SBJSON parser. Since i’m using iOS 5, i used NSJSONSerialization and it works like a charm.

NSError *e = nil;
NSArray *jsonArray = [NSJSONSerialization JSONObjectWithData: responseData options: NSJSONReadingMutableContainers error: &e];

instead of the JSONValue