Android and android Official Website

Android and android Official Website
Resource xml files are adapted to different versions

Address: http://blog.csdn.net/caroline_wendy

Adapt layout to Android platform or API level: Adapt the layout file to different API levels to avoid warnings. By setting different API levelsDifferent folders (layout-v4), To adapt, you can remove the Warning.
Specifically: If what you're trying to do is show a different layout depending on which API version is available on the device, you want to use configuration qualifiers. the specifics for alternative resources are also incluented.
The most basic way to do it is to create a layout folder for each API level you want to use, formatted as follows:
Res/layout/mylayout. xml (Default) res/layout-v4/mylayout. xml (Android 1.6) res/layout-v11/mylayout. xml (Android 3.0) and so on, where vN is the API level. the specific API levels can be found on this page.
Reference: http://stackoverflow.com/questions/6536079/adapt-layout-to-android-platform-or-api-level