用系统导航控制器改变navigationItem的标题颜色和导航栏颜色

  

1：修改UINavigationController title 字体的颜色

NSDictionary *attributes=[NSDictionary dictionaryWithObjectsAndKeys:[UIColor whiteColor],NSForegroundColorAttributeName,nil];

 [self.navigationController.navigationBar setTitleTextAttributes:attributes];

2：修改导航栏的背景

    [self.navigationController.navigationBar setBarTintColor:HERORGB(202, 55, 53)];