iOS 隐藏Navigationbar导航栏

需求是这样的，只在首页隐藏Navigation Bar，其他页面都不隐藏。

- (void)viewWillAppear:(BOOL)animated {
    [self.navigationController setNavigationBarHidden:YES animated:animated];
    [super viewWillAppear:animated];
}

- (void)viewWillDisappear:(BOOL)animated {
    [self.navigationController setNavigationBarHidden:NO animated:animated];
    [super viewWillDisappear:animated];
}

援引：http://www.jianshu.com/p/efb960fed457