Question

I want to make a done button appear UINavigationBar when any row in my UITableView is selected and I want this button to perform an action performSegueWithIdentifier.
Any ideas on how to implement it?

Answer 1

Add the following to your tableView:didSelectRowAtIndexPath: method:

//add done button to navigation bar
UIBarButtonItem *doneBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(userPressedDone)];
self.navigationItem.rightBarButtonItem = doneBarButtonItem;

Then have a method like this somewhere in your view controller:

-(void)userPressedDone {
    //perform segue
    [self performSegueWithIdentifier:@"mySegue" sender:nil];
}