在以往我创建一个新项目，该Fragment_main.xml文件添加到我的布局文件夹，而不像在Eclipse正是这个文件，它包含了常见的Activity_Main.xml file.Why永远是Fragment_main.xml文件添加到我的机器人Studio项目？它不同于常规Activity_main.xml文件？

When ever i create a new project, the Fragment_main.xml file is added to my Layout folder and unlike in Eclipse it is this file that contains what is normally in the Activity_Main.xml file.Why is the Fragment_main.xml file always added to my projects in Android Studio and how is it different from the "regular" Activity_main.xml file?

推荐答案

该Activity_main.xml包含布局的FragmentActivity和fragment_main.xml是布局的片段。

The Activity_main.xml contains the Layout for the FragmentActivity and the fragment_main.xml is the Layout for the fragment.

有关更多信息，片段和如何使用它。 请访问：http://developer.android.com/training/basics/fragments/index.html

For more information to fragments and how you can use it. Visit: http://developer.android.com/training/basics/fragments/index.html