Android Studio 2.2 Preview 3 发布了，该版本新增一些新特性，以及修复 Preview 2 中发现的 Bugs。

以下是该版本值得关注的内容：

Espresso Test Recorder

• Demo of the Espresso Test Recorder shown at IO is now included in Preview 3

Constraint Layout

• ConstraintLayout editor:

  • New toolbar UI

  • Pan & zoom widget in the inspector

  • Better auto-inference

  • Databinding support in the layout editor

• ConstraintLayout:

  • Fixed padding bug

  • Various bug fixes (design mode positioning, etc.)

• Images support:

  • Photoshop viewer integrated in Android Studio

  • Convert Photoshop files to Vector Drawable

完整发布说明，点击这里查看。

下载地址：https://sites.google.com/a/android.com/tools/download/studio