UINavgationPUITabBar

代码说明：

  我们写iOS项目的时候，基本都是一个UINavigationController套一个UITabBarController的形式，就是上面一个导航栏，下面几个按钮的工具条的形式。我写了几个应用，发现如果每次都重新写的话完全就是浪费精力和时间，而且还使工程结构混乱。因此我就抽时间把这种形式的UI结构单独写出来，并抽象出调用接口，这样以后再写应用是就可以直接在这个工程上添加就行了。(We write iOS project, basically in the form of a sleeve of a UINavigationController UITabBarController, that is, above the navigation bar, in the form of several toolbar buttons below. I wrote several applications, found that if each time to re-write it entirely is a waste of time and energy, but also to make the project structure confusing. So I would take the time to write this form of UI structure out alone, and abstract call interface, so that later write applications that can be added directly on this project on the line.)