How to hide navigation bar in iPhone?
问题 Currently i am working in iPhone app, I have two screen like A and B, A has no navigation bar, but B has navigation bar. so i set like this. Class A: - (void)viewDidLoad { [super viewDidLoad]; self.title=@"A"; [self.navigationController setNavigationBarHidden:YES]; } -(void)viewWillAppear:(BOOL)animated { [self.navigationController setNavigationBarHidden:YES]; } Class B: - (void)viewDidLoad { [super viewDidLoad]; self.title=@"B"; [self.navigationController setNavigationBarHidden:NO]; } -(void