iOS navigation 隐藏首页或者我的页面的首页面的导航条，下个页面如果也是隐藏的，那么请用这个

-(void)viewWillAppear:(BOOL)animated{

    [superviewWillAppear:animated];

      [self.navigationController setNavigationBarHidden:YES animated:NO];

}

-(void)viewWillDisappear:(BOOL)animated{

    [superviewDidDisappear:animated];

    [self.navigationController setNavigationBarHidden:NO animated:NO];

}

如果用这个，首页可以隐藏，但是下个页面继续是隐藏将会失效

-(void)viewDidDisappear:(BOOL)animated{

    [superviewDidDisappear:animated];

    [self.navigationController setNavigationBarHidden:NO animated:NO];

}