iOS - pass int between view controllers - uitableview

Question

I have an int pageNumber setup like so #property (nonatomic, assign) int pageNumber; which I am trying to pass between two view controllers.
It works the first time I tap a cell in the tableview, however if I tap a cell again the int does not get updated.
Any ideas? My code is below.
LeftMenuViewController.m
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:YES];
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:#"MainStoryboard_iPhone"
bundle: nil];
UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:indexPath];
SoftwareCheckViewController *sc = [[SoftwareCheckViewController alloc] init];
if ([cell.textLabel.text isEqual: #"S:1 R:0"]) {
sc = [mainStoryboard instantiateViewControllerWithIdentifier: #"SoftwareCheckViewController"];
sc.pageNumber = 1;
}
else if ([cell.textLabel.text isEqual: #"S:1 R:1"]) {
sc = [mainStoryboard instantiateViewControllerWithIdentifier: #"SoftwareCheckViewController"];
sc.pageNumber = 2;
}
else if ([cell.textLabel.text isEqual: #"S:1 R:2"]) {
sc = [mainStoryboard instantiateViewControllerWithIdentifier: #"SoftwareCheckViewController"];
sc.pageNumber = 3;
}
[[NSNotificationCenter defaultCenter] postNotificationName:#"pageNumberNotification" object:self];
}
SoftwareCheckViewController.m
- (void)viewDidLoad
{
[super viewDidLoad];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(pageNumberMethod) name:#"pageNumberNotification" object:nil];
}
- (void)pageNumberMethod{
NSLog(#"pageNumber: %i", pageNumber);
}

Answer 1

You are creating new view controllers every time you tap a cell but you aren't doing anything with them. Setting sc.pageNumber is never going to have an effect if sc isn't the controller that's listening for a notification.
Also, even if you wanted a new controller, [[SoftwareCheckViewController alloc] init] is basically a waste because you then assign something different to sc right after.