The render error panel now has a close button such that you can temporarily dismiss it to see the partial rendering. Furthermore, when a flag or enum attribute is set to an unknown value, it now suggests the possible values with hyperlinks to directly set them:
It also tries to make the display more compact by aggregating multiple similar errors into a single message. For example, if you have an error in your style sheet parent reference, rather than getting dozens of "missing style" warnings, you get this one:
Color and icon previews for resources now also works for style and theme definitions (
Fixed several user reported exceptions in lint analysis
Fixed bug where the presence of an unexpected file anywhere in the resource directories would prevent the layout editor from opening
More fixes to Gradle import and SDK handling
官方首页：http://developer.android.com/sdk/installing/studio.html
来自:开源中国社区