乡下老曹也能搞IT

（参考android开发文档） Fragments 简介： 在android开发文档中的描述： A Fragment represents a behavior or a portion of user interface in an Activity. You can combine multiple fragments in a single activity to build a

（参考android开发文档之Fragments） Fragments生命周期： Lifecycle Though a Fragment's lifecycle is tied to its owning activity, it has its own wrinkle on the standard activity lifecycle. It includes basic activ