gistfile1.txt

// Fetch list of places from the GooglePlaces.plist file present in the bundle.
    dispatch_queue_t aQueue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
   
    dispatch_async(aQueue, ^{
        // Perform some task...
       
        dispatch_async(dispatch_get_main_queue(), ^{
            [self.tableView reloadData];
        });
    });