I am using the following code to push my view controller, except when the UIButton is pressed - nothing happens apart from the NSLog statement:
NSLog(@"Change Passcode Screen Loaded!");
ChangePasscode *cpscreen = [[ChangePasscode alloc] initWithNibName:@"ChangePasscode" bundle:[NSBundle mainBundle]];
[self.navigationController pushViewController:cpscreen animated:YES];
Have you debugged and checked that your
navigationController isn't nil ?