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Release updates archive
Android Studio 3.1 Canary 6 is now available
Mittwoch, 20. Dezember 2017
Android Studio 3.1 Canary 6 is now available in the Canary and Dev channels.
If you are
upgrading from 3.1 Canary 1, 2, or 3
, you need to download the latest version of the IDE from the
Android Studio Preview site
.
You might receive an error when updating your project to 3.1 Canary 6
. If so, you need to manually change the Android Gradle plugin version to
3.1.0-alpha06
as shown here:
buildscript { dependencies { classpath 'com.android.tools.build:gradle:3.1.0-alpha06' } }
Then click
Sync Project with Gradle Files
. T
he first sync will fail and you'll see a message asking you to upgrade the Gradle version in the wrapper, so follow the Quick Fix to apply the update.
This release includes general bug fixes and the following new features:
Upgrades the base IDE to
IntelliJ 2017.3
. You may notice changes in behavior and performance as a result of this merge. If you encounter changes you believe to be regressions, please
report a bug
.
Updates the
Kotlin plugin
to version 1.2.
Updates to
Data Binding
:
You can now use a
LiveData
object as an observable field in data binding expressions. The
ViewDataBinding
class now includes a new
setLifecycle
method that you need to use to use to observe
LiveData
objects.
New compiler
: You can preview a new incremental compiler for your data binding classes. To enable this compiler, add
android.databinding.enableV2=true
to your gradle.properties file, or include the following command line argument:
-Pandroid.databinding.enableV2=true
. Keep in mind, this compiler is
not backwards compatible
, so you need to recompile all of your data binding classes with this feature enabled to take advantage of incremental compilation. Note the following behavior changes when using the new compiler:
The Android plugin for Gradle now generates
Binding
classes for your layouts before compiling your Java code.
If a layout is included in more than one target resource configuration, the data binding library now defaults the view type to
android.view.View
for all views that share the same resource id but not view type.
Binding classes for library modules are compiled and packaged with its AAR. That is, app modules that depend on those library modules no longer need to regenerate those classes.
A module’s binding adapters can no longer change the behavior of adapters of the module’s dependencies. That is, binding adapters now only affect code in its own module and downstream consumers of the module.
The
ObervableField
class can now accept other
Observable
objects in its constructor. The
ObservableField
object registers a change when one of its
Observable
dependencies register a change.
Known issues:
Updating existing projects to the alpha 6 Android Gradle plugin fails. You must manually update to 3.1.0-alpha06 as described above.
When
using Java 8 language features
, the intentions menu item to “Set Language Level to 8" is missing.
AAPT2 may throw an error when adding a tabbed activity to a project which is created with Maps activity.
You may get an
IsolationException
error while building
LintTest
project.
Certain devices may cause a
java.lang.AssertionError
while working with profilers.
You may receive a "File Creation failed" error while recording espresso tests for Instant Apps that include code written in Kotlin.
You may receive a fatal exception when
using Java 8 language features
with Android Instant Apps projects.
Your app may see FATAL_EXCEPTION "Error inflating class ImageView" when adding color resources to an
ImageView
using the theme attribute.
You may receive a
TimeoutException
while deploying a Wear project to the emulator.
When creating a Android Instant Apps project that includes a
BottomNavigationView
, you may get a null pointer exception.
If you already have an Android Studio build on the
Canary or Dev channel
, you can get the update by clicking
Help > Check for Update
(or
Android Studio > Check for Updates
on Mac). Otherwise, you can
download here
.
ConstraintLayout 1.1.0 beta 4
Freitag, 15. Dezember 2017
We just published ConstraintLayout 1.1.0 beta 4. It’s available from the google maven repository:
dependencies {
compile 'com.android.support.constraint:constraint-layout:1.1.0-beta4'
}
Documentation is available at
https://developer.android.com/reference/android/support/constraint/ConstraintLayout.html
Changes:
Fixes issue with incorrect spread in Chain
Fixes RTL issues (guideline, chains, bias)
Fixes missing percent handling in ConstraintSet
Fixes various barriers issues
Improved xml inflation speed
Android Studio 3.1 Canary 5 is now available
Dienstag, 5. Dezember 2017
Android Studio 3.1 Canary 5 is now available in the Canary and Dev channels, and includes general bug fixes and the following new features:
Includes in-process desugaring to decrease compile time when
using Java 8 language features
. To try this preview feature, set
android.enableD8.desugaring=true
in your project’s gradle.properties file.
In the
Network Profiler
, a new
Request
tab provides network request details, as shown below.
In the
CPU Profiler
, a new search feature allows you to highlight relevant trace results in
Trace Pane
, as shown below. This feature is also available in the
Memory Profiler
to filter the results of your memory allocations or heap dumps. To enter a search query, click the icon at the top-right corner of the pane and then click on the search box.
In the CPU profiler
Flame Chart
pane, call stacks that include the search query are highlighted and moved to the left side of the chart.
Known Issue:
In the
Top Down
and
Bottom Up
CPU profiler charts, relevant search results are prioritized above others when a column is sorted in a descending order. However, this prioritization does not take place when columns are sorted in an ascending order.
Known Issue:
When pausing while entering a search query in the CPU profiler, the IDE updates the results with your query and disables the cursor within the search field. That is, you need to click into the search field again to continue typing.
If you already have an Android Studio build on the
Canary or Dev channel
, you can get the update by clicking
Help > Check for Update
(or
Android Studio > Check for Updates
on Mac). Otherwise, you can
download here
.