Title : Android Studio 2.3
Link : Android Studio 2.3
Android Studio 2.3
By Jamal Eason, Product Manager, Android
Android Studio 2.3 is available to download today. The
focus for this release is quality improvements across the IDE. We are grateful
for all your feedback so far. We are committed to continuing to invest in making
Android Studio fast & seamless for the millions of Android app developers across
the world.
We are most excited about the quality improvements in Android Studio 2.3 but you
will find a small set of new features in this release that integrate into each
phase of your development flow. When designing your app, take advantage of the
updated WebP
support for your app images plus check out the updated
ConstraintLayout library support and widget palette in the LayoutEditor. As you are developing, Android Studio has a new App
Link Assistant which helps you build and have a consolidated view of your
URIs in your app. While building and deploying your app, use the updated run
buttons for a more intuitive and reliable Instant
Run experience. Lastly, while testing your app with the Android Emulator,
you now have proper copy & paste text support.
What's new in Android Studio 2.3
For more detail about the features we added on top of the quality improvements
Android Studio 2.3, check out the list of the new features below:
- Build
- Instant Run Improvements and UI Changes: As a part of our
focus on quality, we have made some significant changes to Instant Run in
Android Studio 2.3 to make the feature more reliable. The Run action will now always cause an application
restart to reflect changes in your code that may require a restart, and the new Apply Changes action will attempt to swap the code while your app keeps running. The underlying implementation has changed significantly to improve
on reliability, and we have also eliminated the startup lag for Instant Run
enabled apps. Learn
more.
 |
| New Instant Run Button Actions |
- Build Cache: Introduced but disabled by default in Android Studio 2.2, Build
Cache is an underlying build optimization for faster builds in Android Studio.
By caching exploded AARs and pre-dexed external libraries, the new build cached
leads to faster clean builds. This is a user-wide build cache that is now turned on
by default with Android Studio 2.3. Learn
more.
- Design
- Chains and Ratios support in Constraint Layout: Android
Studio 2.3 includes the stable release ofConstraintLayoutWith this release ofConstraintLayout,you can now chain two
or more Android views bi-directionally together to form a group on one
dimension. This is helpful when you want when you want to place two views close
together but want to spread them across empty space. Learn more.
 |
| Constraint Layout Chains |
ConstraintLayout also supports ratios, which is helpful whenyou want to maintain the aspect ratio of widget as the containing layout expands
and contracts. Learn
more about ratios. Additionally, both Chains and Ratios in
ConstraintLayout can support programmatic creating with ConstraintSetAPIs.
 |
| Constraint Layout Ratios |
- Layout Editor Palette: The updated widget palette in the
Layout Editor allows you to search, sort and filter to find widgets for your
layouts, plus gives you a preview of the widget before dragging on to the design
surface. Learn
more.
 |
| Layout Editor Widget Palette |
- Layout Favorites: You can now save your favorite
attributes per widget in the updated Layout Editor properties panel. Simply star
an attribute in the advanced panel and it will appear under the Favorites
section. Learn
more.
 |
| Favorites Attributes on Layout Editor Properties Panel |
- WebP Support: To help you save space in your APK, Android
Studio can now generate WebP images from PNG assets in your project. The WebP
lossless format is up to 25%
smaller than a PNG. With
Android Studio 2.3, you have a new wizard that converts PNG to lossless WebP and
also allows you to inspect lossy WebP encoding as well. Right-click on any non-launcher
PNG file to convert to WebP. And if you need to edit the image, you can also
right-click on any WebP file in your project to convert back to PNG. Learn
more.
 |
| WebP Image Conversion Wizard |
- Material Icon Wizard Update: The updated vector asset
wizard supports search and filtering, plus it includes labels for each icon
asset. Learn
more.
Develop
 |
| Vector Asset Wizard |
- Lint Baseline: With Android Studio 2.3, you can set
unresolved lint warnings as a baseline in your project. From that point forward,
Lint will report only new issues. This is helpful if you have many legacy lint
issues in your app, but just want to focus on fixing new issues. Learn more about Lint baseline and the new Lint checks & annotations added in this
release.
 |
| Lint Baseline Support |
- App Links Assistant: Supporting Android App Links in your
app is now easier with Android Studio. The new App Links Assistant allows you to
easily create new intent filters for your URLs, declare your app's website
association through a Digital Asset Links file, and test your Android App Links
support. To access the App Link Assistant go to the following menu location:
Tools → App Link Assistant. Learn
more.
 |
| App Links Assistant |
- Template Updates: By default, all templates in Android
Studio 2.3 which use to containRelativeLayout, now useConstraintLayout. Learn more about templates
and Constraint
Layout. We have also added a new Bottom Navigation Activity template, which
implements the Bottom Navigation Material Design guideline.
 |
| New Project Wizard Templates |
- IntelliJ Platform Update: Android Studio 2.3 includes the
IntelliJ 2016.2 release, which has enhancements such as an updated inspection
window and a notifications system. Learn
more.
- Test
- Android Emulator Copy & Paste: Back by popular demand, we
added back the Copy & Paste feature to the latest Emulator (v25.3.1). We have a
shared clipboard between the Android Emulator and host operating system, which
will allow you to copy text between both environments. Copy & Paste works with x86 Google API Emulator system images API Level 19 (Android 4.4 - Kitkat) and
higher.
 |
| Copy & Paste support in Android Emulator |
- Android Emulator Command Line Tools: Starting with Android
SDK Tools 25.3, we have moved theemulatorfrom the SDK Tools
folder into a separate emulator directory, and also deprecated and replaced the "android" command with a standalone
avdavdmanagercommand. The previous command line parameters foremulator
and "android avd" will work with the updated tools. We have also added
location redirects for theemulatorcommand. However, if you create
Android Virtual Devices (AVDs) directly through the command line you should
update any corresponding scripts. If you are using the Android Emulator through
Android Studio 2.3, these change will not impact your workflow. Learn
more.
To recap, Android Studio 2.3 includes these new features and more:
Develop
Build | Design
Test |
Learn more about Android Studio 2.3 by reviewing the release
notes.
- Getting Started
- Download
If you are using a previous version of Android Studio, you can check for updates
on the Stable channel from the navigation menu (Help → Check for Update
[Windows/Linux] , Android Studio → Check for Updates [OS X]). You can also
download Android Studio 2.3 from the official download page. To
take advantage of all the new features and improvements in Android Studio, you
should also update to the Android Gradle plugin version to 2.3.0 in your current
app project.
We appreciate any feedback on things you like, issues or features you would like
to see. Connect with us -- the Android Studio development team -- on our Google+ page or on Twitter.
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