I inserted a button in IB, added this code in the .h file
-(IBAction)buttonPressed:(id)sender;
Connected the action to the button in IB (Touch
You aren't showing the rest of your code - it should look something like
YourViewController *yourViewController = [[YourViewController alloc] initWithNibName:@"YourViewController" bundle:nil];
yourViewController.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentModalViewController:yourViewController animated:YES];
make sure that you have included YourViewController.h in the .m of the calling View Controller .