((ios开发学习笔记十一)) NavigationController实现

 

实现过程：

Step One 设置根ViewController

      self.window.rootViewController=[[[UINavigationControlleralloc]initWithRootViewController:self.viewController] autorelease];

 

Step Two 设置 Navigation Title

      self.navigationItem.title=@"背单词四级版";

 

Step Three 添加子窗体