Question

I’m a newbie to programing and I have a view based app that collects data from a SQLite database and show it in a table. That much I have got working however I can’t get the app to show a detailed view once an item on the table is selected. Here is my code if anyone can help.

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

    if (dvController == nil)
        dvController = [[DetailViewController alloc] initWithNibName:@"DetailViewController" bundle: nil];

    Clubs *clubObj = [appDelegate.clubArray objectAtIndex:indexPath.row];

    [clubObj hydrateDetailViewData];

    dvController.clubObj = clubObj;

    [self.navigationController pushViewController:dvController animated:YES];

}

-(void)viewDidLoad {
[super viewDidLoad];

appDelegate = (ClubFindAppDelegate *) [[UIApplication sharedApplication] delegate];
self.title = @"Back";

}

Any help would be appreiciated.
Thanks

Answer 1

If you started with a view based app, perhaps your view controller doesn’t have a self.navigationController instance available. Your view controller must be within a navigation controllers stack to push further view controllers.

To turn a view based app into one with a navigation controller all you really have to do is edit the app delegate as follows:

// view based app template code
self.window.rootViewController = self.viewController;

becomes

UINavigationController * controller = [[UINavigationController alloc] initWithRootViewController:self.viewController];
self.window.rootViewController = controller;

You might also want to save the navigationController as a property of the application delegate also.