Android Studio 是一个全新的 Android 开发环境，基于 IntelliJ IDEA. 类似 Eclipse ADT，Android Studio 提供了集成的 Android 开发工具用于开发和调试，在 IDEA 的基础上，Android Studio 提供：
基于 Gradle 的构建支持
Android 专属的重构和快速修复
提示工具以捕获性能、可用性、版本兼容性等问题
支持 ProGuard 和应用签名
基于模板的向导来生成常用的 Android 应用设计和组件
功能强大的布局编辑器，可以让你拖拉 UI 控件并进行效果预览
Android Studio 0.2.7 发布了，该版本修复了一些重要的 bug：
IDE
Updated the IDE base to the IntelliJ EAP build #132.27 sources (previously, we've used nightly snapshots)
Editing
.aar (Android Archive files, which are used when you for example use a Gradle dependency on the support library) are now properly handled by the editors. In earlier versions, the layout editor could render resources from .aar dependencies, but now code completion, XML resource validation etc. also properly handle these dependencies.
The IDE will no longer auto-import the "android.R" class, since that can easily lead to confusion between the imported R class and the application R class. Similarly, if you use the Preferences > Code Style > Java > Imports > Insert Imports for Inner Classes mode, it will now deliberately exclude R classes.
The API detector now properly checks methods inherited through the support library classes
An important bug related to file refreshing after builds was fixed; this should fix cases of the R class not being resolved and shown in red in the editor.
XML validation now properly handles empty parent style references (used in the appcompat library), and the layout rendering now handles HTML entities in style definitions
XML code completion now works on @+id/ and theme (?attr) prefixes.
Gradle Integration
The Gradle tool window now displays all available tasks for a Gradle-based Android project. We are currently displaying all available tasks, including auto-generated ones which may not be intended for users; we will be cleaning up this lists in future updates.)
The gradle output parser has been revamped; it should now properly include source locations for errors in resource merging, and unrecognized output is added as information items, so you should no longer need to go to a terminal and run gradlew to get full diagnostic information; it should all be available within the IDE.
HTTP proxy settings in the IDE are now passed to Gradle, and gradle connection failures during import/sync point to the proxy configuration panel
Important fixes to library dependencies in Gradle project sync
The New Project template now offers the Android support library, the Android compatibility library and the Grid Layout backport library as optional dependencies; when the corresponding checkboxes are selected the right dependencies are added to the Gradle files
Fix misc user reported crashes
官方首页：http://developer.android.com/sdk/installing/studio.html
来自:开源中国社区
