This post was originally published at Android Studio 3.0

Posted by Jamal Eason, Product
Manager, Android

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Android Studio 3.0 is ready to download today. Announced at Google I/O 2017,
Android Studio 3.0 is a large update focused on accelerating your app
development on Android.

This release of Android Studio is packed with many new updates, but there are
three major feature areas you do not want to miss, including: a new suite of app
profiling tools to quickly diagnose performance issues, support for the Kotlin
programming language, and a new set of tools and wizards to accelerate your
development on the latest Android Oreo APIs.

We also invested time in improving stability and performance across many areas
of Android Studio. Thanks to your feedback during the preview versions of
Android Studio 3.0! If you are looking for high stability, want to build high
quality apps for Android Oreo, develop with the Kotlin language, or use the
latest in Android app performance tools, then you should download Android Studio
3.0 today.

Check out the the list of new features in Android Studio 3.0 below, organized by
key developer flows.

What’s new in Android Studio 3.0

Develop

  • Kotlin Programming Language As announced
    at Google I/O 2017
    , the Kotlin
    programming language is now officially supported for Android development. Kotlin
    is an expressive and concise language that is interoperable with existing
    Android languages and runtimes, which means you can use as little or as much of
    the language in your app as you want. Kotlin is a production-ready language
    used by many popular Android apps on Google Play today.

    This release of Android Studio is the first milestone of bundles the Kotlin
    language support inside the IDE. Many of your favorite features such as code
    completion and syntax highlighting work well this release and we will continue
    to improve the remaining editor features in upcoming release. You can choose to
    add Kotlin to your project using the built-in conversion tool found under
    CodeConvert Java File to Kotlin File, or
    create a Kotlin enabled project with the New Project Wizard. Lean more about
    Kotlin language support
    in Android Studio
    .

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Kotlin Language Conversion in Android Studio
  • Java 8 Language features In Android
    Studio 3.0, we are continuing to improve the support for Java 8 language
    features. With the migration
    to a javac
    based toolchain, using Java 8 language features in your project
    is even easier. To update your project to support the new Java 8 Language
    toolchain, simply update your Source and Target compatibility
    levels to 1.8 in the Project Structure dialog. Learn
    more
    .
  • Layout Editor The component tree in the
    Layout Editor has with better drag-and-drop view insertions, and a new error
    panel. Learn
    more
    .
  • Adaptive Icon Wizard The new wizard
    creates a set of launcher icon assets and provides previews of how your
    adaptive icon will look with different launcher screen icon masks. Support for
    VectorDrawable layers is new for this release. Learn
    more
    .
  • XML Fonts & Downloadable Fonts If you
    target Android Oreo (API Level 26 and higher) for your Android app, you can now
    add custom fonts & downloadable fonts using XML with Android Studio
    3.0.
  • Android Things Support Android Studio
    3.0 includes a new set of templates in the New Project wizard and the New Module
    wizard to develop for the Android Things platform. Learn more.
  • IntelliJ Platform Update: Android Studio 3.0 includes the
    IntelliJ 2017.1 release, which has features such as Java 8 language refactoring,
    parameter hints, semantic highlighting, draggable breakpoints, enhanced version
    control search, and more. Learn
    more
    .

Build

  • Build Speed Improvements To further
    improve the speed of Gradle for larger scale projects with many modules, we
    introduced a rare breaking API change in the Android Gradle Plugin to
    improve scalability and build times. This change is one of reasons we jumped
    version numbers from Android Studio 2.4 to 3.0. If you depend on APIs provided
    by the previous Gradle plugin you should validate compatibility with the new
    plugin and migrate to the new APIs. To test, update the plugin version in your
    build.gradle file. Learn
    more
    .
  • Google’s Maven Repository To facilitate
    smaller and faster updates, Android Studio 3.0 utilizes Google’s Maven
    Repository by default instead of using the Android SDK Manager to find updates
    to Android Support Library, Google Play Services, and Firebase Maven
    dependencies. Used in combination with the latest command line SDK
    Manager tool
    and Gradle,
    Continuous Integration builds should migrate to Google’s Maven Repository for
    future Maven repository updates. Learn
    more
    .

Test & Debug

  • Google Play System Images We also
    updated the emulator system images for Android Oreo to now include the Google
    Play Store. Bundling in the Google Play store allows you to do end-to-end
    testing of apps with Google Play, and provides a convenient way to keep Google
    Play services up-to-date in your Android Virtual Device (AVD). Just as Google
    Play services updates on physical devices, you can trigger the same updates on
    your AVDs.

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    Google Play Store in Android Emulator

    To ensure app security and a consistent experience with physical devices, the
    emulator system images with the Google Play store included are signed with a
    release key. This means you will not be able to get elevated privileges. If you
    require elevated privileges (root) to aid with your app troubleshooting, you can
    use the Android Open Source Project (AOSP) emulator system images that do not
    include Google apps or services. Learn more.

  • OpenGL ES 3.0 Support in Android Emulator
    The latest version of the Android Emulator has OpenGL ES 3.0 support
    for Android Oreo system images along with significant improvements in OpenGL ES
    2.0 graphics performance for older emulator system images. Learn
    more
    .
  • App Bug Reporter in Android Emulator To
    help in documenting bugs in your app, we have added an easier way to generate a
    bug report with the Android Emulator with all the necessary configuration
    settings and space to capture your repro steps. Learn
    more
    .
  • Proxy Support in Android If you use a
    proxy to access the Internet, we have added a user interface to manage the HTTP
    proxy settings used by the emulator. Lean
    more
    .
  • Android Emulator Quick Boot (Canary) One
    of the most common pain points we hear is that the emulator takes too long to
    boot. To address this concern, we are excited to preview a new feature to solve
    this called Quick Boot, which significantly speeds up your emulator start time.
    Once enabled, the first time you start an AVD a cold boot will occur (just like
    powering on a device), but all subsequent starts are fast and the system is
    restored to the state at which you closed the emulator (similar to waking a
    device). If you want to try it out, ensure you are on the canary update release
    channel and then you will find v26.2.0 of the Android Emulator in the SDK
    Manager. Learn
    more
    .
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  • APK Debugging Android Studio 3.0 allows
    you to debug an arbitrary APK. This functionally is especially helpful for those
    who develop your Android C++ code in another IDE, but want to debug and analyze
    the APK in the context of Android Studio. As long as you have a debuggable
    version of your APK, you can use the new APK Debugging features to analyze,
    profile & debug the APK. Moreover, if you have access to the sources of your
    APK, you can link the source to the APK debugging flow for a higher fidelity
    debugging process. Get started by simply selecting Profile or debug
    APK
    from the Android Studio Welcome Screen or File → Profile or
    debug APK
    . Learn
    More
    .
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APK Debugging
  • Layout Inspector In this release we have
    added a few additional enhancements for the Layout Inspector including better
    grouping of properties into common categories, as well as search functionality
    in both the View Tree and Properties Panels. Learn
    more
    .
  • Device File Explorer The new Device File
    Explorer in Android Studio 3.0 allows you to view the file and directory
    structure of your Android device or emulator. As you are testing your app, you
    can now quickly preview and modify app data files directly in Android Studio.
    Learn
    more
    .
  • Android Test Orchestrator Support – When used with
    AndroidJUnitRunner 1.0 or higher, the Android Gradle plugin 3.0 supports the use
    of the Android Test Orchestrator. The Android Test Orchestrator allows each of
    your app’s tests to run within its own Instrumentation.
    Learn
    more
    .

Optimize

  • Android Profiler Android Studio 3.0
    includes a brand new suite of tools to help debug performance problems in your
    app. We completely rewrote the previous set of Android Monitor tools, and
    replaced them with the Android Profiler. Once you deploy your app to a running
    device or emulator, click on the Android Profiler tab and you
    will now have access to a real-time & unified view of the CPU, Memory, & Network
    activity for your app. Each of the performance events are mapped to the UI event
    timeline which highlights touch events, key presses, and activity changes so
    that you have more context on when and why a certain event happened. Click on
    each timeline to dig into each performance aspect of your app. Learn
    more
    .
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Android Profiler – Combined timeline view.
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CPU Profiler
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Memory Profiler
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Network Profiler
  • APK Analyzer Improvements We also
    updated APK Analyzer with additional enhancements to help you further optimize
    the size of your APK. Learn
    more
    .

To recap, Android Studio 3.0 includes these new major features:

If you are using a previous version of Android Studio, you can upgrade to
Android Studio 3.0 today or you can download the update from the official
Android Studio Preview download
page
. As mentioned in this blog, there are some breaking Gradle Plugin API
changes to support new features in the IDE. Therefore, you should also update
your Android Gradle plugin version to 3.0.0 in your current project to test and
validate your app project setup.

We appreciate any feedback on things you like, issues or features you would like
to see. If you find a bug or issue, feel free to file an
issue
. Connect with us — the Android Studio development team ‐ on our Google+ page or on Twitter

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This post was originally published at Android Studio 3.0