



This build contains a number of fixes for various critical bugs found in preview 1:

ConstraintLayout: version 1.0.0-alpha2

Fixed guidelines crash on device



Fixed typo in attribute name (leftToLeft)



Changed orientation attribute namespace from app to android to fix a conflict with GridLayout



ConstraintLayout now works properly inside ScrollView



ConstraintLayout now works properly inside RecyclerView



Percentage positioning of guidelines is now parsed as an integer instead of a dimension



Better behavior for match_parent on the device. The behavior is now the same as 0dp (the widget stretches according to its constraints)

Layout Editor

Fixed bug which sometimes turned fonts blue in other editors (.xml, .java)



Fewer generated XML attributes



Better behavior for match_parent in the editor



Fixed widgets resizing during drag



Improved guidelines representation in the editor



Improved auto conversion to ConstraintLayout



Improved edition of nested layouts



Various bug fixes and improvements in the editor

Fixed bug preventing the IDE from starting on some Linux distributions (in particular where /bin/sh is not bash)

Export Signed APK wizard was exporting to the wrong folder (issue 210520)

Fixed bug in welcome screen which meant some users couldn't create new projects

Fixed embedded JDK handling

Fixed a bug bugs in the native/hybrid debugger

Disabled a couple of Groovy inspections that reported incorrect errors in build.gradle files

Fixed an instant run bug which for some users resulted in every run turning into a full build

Fixed a couple of crashes in lint (in the new Gradle plugin, 2.2 alpha 2)

A bunch of improvements to the accessibility support

Unfortunately the Espresso Test Recorder is still not in this build; we're addressing a few more issues and then hope to have it ready in the next build!





Also, due to a bug, we're not able to offer patches from Preview 1 to Preview 2, so you'll need to download a complete install (and the complete install is a bit bigger in 2.2 than in the past since we now bundle a copy of OpenJDK to address a number of font rendering and other stability issues). However, the bug should be fixed in this build such that patching from Preview 2 to the next build will work.





To download Android Studio 2.2 Preview 2, visit its download page





As always, thank you for helping us test Android Studio preview builds!

We've just released Android Studio 2.2 Preview 2 to the canary channel.