Measure performance. Publish your app. Command line tools. Android Developers. Setting up Android Studio takes just a few clicks. First, be sure you download the latest version of Android Studio.
Select whether you want to import previous Android Studio settings, then click OK. The following video shows each step of the recommended setup procedure. Select whether you want to import previous Android Studio settings or not, then click OK. Programming languages include Kotlin and Java and the use of a minimum SDK and use of legacy support libraries.
After you've installed the program and run it, you can also download a number of other add-ons depending on what type of action you'd like to create. It will generally prompt you to download the component based on the task. When an app has been created, you can easily create an APK for it. Android Studio is also capable of running some debug routines and running the APK file from within the interface. Conclusion All in all, Android Studio is an extremely comprehensive software development kit that has not just emulation and graphical layout previews but also a large number of tips and code samples for creating, polishing and testing Android applications.
This makes it easier for you to find the information that you need to enable or disable specific checks through lintOptions in build. For more information, see Configure lint options with Gradle. Data Binding V2 is now enabled by default and is compatible with V1. This means that, if you have library dependencies that you compiled with V1, you can use them with projects using Data Binding V2. However, note that projects using V1 cannot consume dependencies that were compiled with V2.
R8 is a new tool for code shrinking and obfuscation that replaces ProGuard. When using the Project window in previous versions of Android Studio, you could navigate and inspect only the header files that belong to libraries you build from a local project. Previous versions of Android Studio enabled native multidex when deploying the debug version of an app to a device running Android API level 21 or higher.
Beginning with Android Studio 3. To use AAPT2, make sure that you have a google dependency in your build. Android Studio no longer passes the --configure-on-demand argument to Gradle. The ADB Connection Assistant provides instructions, in-context controls, and a list of connected devices in a series of pages in the Assistant panel.
You can now save and load snapshots of an AVD Android virtual device at any time in the Android Emulator, making it fast and easy to return an emulated device to a known state for testing. Controls for saving, loading, and managing AVD snapshots are now in the Snapshots tab in the emulator's Extended controls window. Builds configured with source sets failed with the following message when Instant Run was enabled:.
Build failures occurred during dexing in some projects with large numbers of modules or external dependencies, with the following error message:. This update also includes changes that make running lint checks from Gradle much faster in some scenarios.
In some cases, when a project created in Android Studio 3. The result was that projects did not build when the Run or Debug button was clicked, which in turn caused failures such as deployment of incorrect APKs and crashes when using Instant Run.
To solve this problem, Android Studio 3. This modification occurs after the first Gradle sync when the project is loaded. Improvements include better control flow analysis for collections and strings, improved nullability inference, new quick fixes, and much more.
When you use the Room database library , you can take advantage of several improvements to SQL editing:. This update includes several improvements for data binding :. You can now use a LiveData object as an observable field in data binding expressions.
The ObservableField class can now accept other Observable objects in its constructor. You can preview a new incremental compiler for your data binding classes. For details of this new compiler and instructions for enabling it, see Data Binding Compiler V2. Libraries keep their generated binding classes when the app is compiled, rather than being regenerated each time. This can greatly improve performance for multi-module projects.
You don't need to make any changes to your code or your development workflow to get these benefits, unless you had previously manually disabled the D8 compiler. If you set android. For projects that use Java 8 language features , incremental desugaring is enabled by default, which can improve build times. Desugaring converts syntactic sugar into a form that the compiler can process more efficiently.
You can disable incremental desugaring by specifying the following in your project's gradle. For details about how to use the new, simplified Build window, see Monitor the build process. The Gradle sync and IDE indexing processes are now much more efficient, reducing time wasted on many redundant indexing operations. Improvements include the following:. Sync time is also greatly reduced for large projects. Performance when building and syncing with CMake has been improved through more aggressive reuse of cached results.
Running lint from the command line now analyzes your Kotlin classes. For each project that you would like to run lint on, Google's Maven repository must be included in the top-level build. The Maven repository is already included for projects created in Android Studio 3. The CPU Profiler now includes a default configuration to record sampled traces of your app's native threads. You can use this configuration by deploying your app to a device running Android 8.
After that, record and inspect a trace as you normally would. You can change default settings, such as the sampling interval, by creating a recording configuration. To switch back to tracing your Java threads, select either a Sampled Java or Instrumented Java configuration. The CPU Profiler and Memory Profiler include a search feature that allows you to filter results from recording a method trace, memory allocations, or heap dump. To search, click Filter in the top-right corner of the pane, type your query, and press Enter.
In the CPU Profiler's Flame Chart tab, call stacks that include methods related to your search query are highlighted and moved to the left side of the chart. For more information on filtering by method, class, or package name, see Record and inspect method traces. The Network Profiler now includes a Request tab that provides details about network requests during the selected timeline. In previous versions, the Network Profiler only provided information about network responses. After selecting a portion of the timeline in the Network Profiler , you can select one of the following tabs to see more detail about the network activity during that timeframe:.
The Layout Inspector gained new features, including some functionality previously provided by the deprecated Hierarchy Viewer and Pixel Perfect tools:. The Palette in the Layout Editor has received many improvements:. You can use the new Convert view command in the Component tree or design editor to convert a view or layout to another type of view or layout.
You can now easily create constraints to items near the selected view using the new Create a connection buttons in the view inspector at the top of the Attributes window. The behavior of the Use same selection for future launches option in the Select deployment target dialog has been made more consistent.
If the Use same selection option is enabled, then the Select deployment target dialog opens only the first time that you use the Run command until the selected device is no longer connected. When targeting a device running Android 8. This is possible because the resources are contained in a split APK. For details of what's new and changed in the emulator since Android Studio 3. To see keyboard shortcuts for many commands, just hold the mouse pointer over a button until the tooltip appears.
Commands that were previously under this menu have been moved. In many cases, the functionality available through the Device Monitor is now provided by new and improved tools. See the Device Monitor documentation for instructions for invoking the Device Monitor from the command line and for details of the tools available through the Device Monitor. Simply ignore this error and click Cancel to resume the installation.
This is a minor update to Android Studio 3. Android Plugin for Gradle 3. When using the new plugin with these large projects, you should experience the following:.
For more information about what's changed, see the Android Plugin for Gradle release notes. If you're ready to upgrade to the new plugin, see Migrate to Android Plugin for Gradle 3. So with this release, Android Studio includes Kotlin language support for Android development. To get started, read how to add Kotlin to your project. You can now use certain Java 8 language features and consume libraries built with Java 8. Jack is no longer required , and you should first disable Jack to use the improved Java 8 support built into the default toolchain.
To update your project to support the new Java 8 language toolchain, update the Source Compatibility and Target Compatibility to 1. To learn more, read how to use Java 8 language features. The new Android Profiler replaces the Android Monitor tool and provides a new suite of tools to measure your app's CPU, memory, and network usage in realtime.
You can perform sample-based method tracing to time your code execution, capture heap dumps, view memory allocations, and inspect the details of network-transmitted files. The event timeline at the top of the window shows touch events, key presses, and activity changes so you have more context to understand other performance events in the timeline. Then, you can troubleshoot CPU performance issues using a variety of data views and filters. The Memory Profiler helps you identify memory leaks and memory churn that can lead to stutter, freezes, and even app crashes.
It shows a realtime graph of your app's memory use, lets you capture a heap dump, force garbage collections, and track memory allocations. For more information, see the Memory Profiler guide. The Network Profiler allows you to monitor the network activity of your app, inspect the payload of each of your network requests, and link back to the code that generated the network request. For more information, see the Network Profiler guide. Android Studio now allows you to profile and debug any APK without having to build it from an Android Studio project—as long as the APK is built to enable debugging and you have access to the debug symbols and source files.
This displays the unpacked APK files, but it does not decompile the code. So, to properly add breakpoints and view stack traces, you need to attach Java source files and native debug symbols. The new Device File Explorer allows you to inspect your connected device's filesystem, and transfer files between the device and your computer.
This replaces the filesystem tool available in DDMS. For more information, see the Device File Explorer guide. Android Studio also includes a new modularize refactoring action to help you add support for Instant Apps in an existing project. In the dialog that appears, select the module where the classes should go and click OK. For more information, see how to create an Android Things project. Image Asset Studio now supports vector drawables and allows you to create adaptive launcher icons for Android 8.
For more information, read about Adaptive Icons. To support the new font resources in Android 8. The layout editor can also preview the fonts in your layout. To try downloadable fonts, ensure that your device or emulator is running Google Play Services v For more information, read about Downloadable Fonts.
The Firebase Assistant has been updated with a new tutorial to test App Indexing. The App Links Assistant has been updated with the following new capabilities:. Android Studio now supports a special tag in the manifest file that allows you to test your intent filter URLs. These are the same tags that the App Links Assistant can create for you. If any one of the test URLs does not pass the intent filter definition, a lint error appears.
Such an error still allows you to build debug variants, but it will break your release builds. The Layout Editor has been updated with a number of enhancements, including the following:.
The Layout Inspector includes enhancements to make it easier to debug issues with your app layouts, including grouping properties into common categories and new search functionality in both the View Tree and the Properties panes. You can now use the APK Analyzer from the command line with the apkanalyzer tool.
It will eventually replace the DX compiler, but you can opt-in to use the new D8 compiler now. DEX compilation directly impacts your app's build time,. And when comparing the new D8 compiler with the current DX compiler, D8 compiles faster and outputs smaller. To try it, set the following in your project's gradle. For more information, see the blog post about the D8 compiler. This makes it easier to keep your libraries up to date, especially when using a continuous integration CI system.
All new projects now include the Google Maven repository by default. To update your existing project, add google in the repositories block of the top-level build. Learn more about Google's Maven repository here. Android Studio 2. Also see corresponding updates for Android Emulator This is a minor update to Android Studio 2. To use the lean Navigation Bar, click View to open the View menu, then ensure that Navigation Bar is selected and Toolbar is not selected.
This release also includes a number of bug fixes. See all bug fixes in 2. Known issue: Some device manufacturers block apps from automatically launching after being installed on the device.
When deploying your app to a physical device using Android Studio 2. To avoid this issue, either use the emulator or enable automatic launching for your app in your device's settings. The procedure for doing this is different for each device, so check the instructions provided by the manufacturer. To learn more about this issue, see Issue It includes a bug fixes focused around gradle, the core IDE, and lint. It includes a number of small changes and bug fixes, including:. It includes several bug fixes and a new feature to enable extra logging to help us troubleshoot Instant Run issues—to help us improve Instant Run, please enable extra logging and report any issues.
This update adds compatibility with Gradle 2. For more details, see the Gradle release notes. By default, new projects in Android Studio 2. For existing projects, the IDE prompts you to upgrade to Gradle 2. The Android N platform adds support for Java 8 language features , which require a new experimental compiler called Jack.
The latest version of Jack is currently supported only in Android Studio 2. So if you want to use Java 8 language features, you need to use Android Studio 2. Note: Instant Run is disabled when you enable the Jack compiler because they currently are not compatible.
Although Android Studio 2. Other than the changes to support the N Preview, Android Studio 2. For other build enhancements, including incremental Java compilation and dexing-in-process,update your Android plugin for Gradle to version 2. Note: Instant Run is supported only when you deploy the debug build variant, use Android plugin for Gradle version 2. For the best performance, configure your app for minSdkVersion 21 or higher. Note: Requires Android plugin for Gradle version 1.
See What's New in IntelliJ for a complete description of the new features and enhancements. See tools. Caution: This new version is not backwards compatible. Content and code samples on this page are subject to the licenses described in the Content License. Android Studio. Download What's new User guide Preview. Features overview Release notes. Android Developers. You can also download Android Studio here. Android Gradle plugin and Android Studio compatibility The following table lists which version of the Android Gradle plugin is required for each version of Android Studio.
Android Studio version Required plugin version Arctic Fox Android Studio Arctic Fox A fix for this issue will be included in Android Studio 3. See issue The default build tools version is now In the Navigation library, argument types have been renamed from type to argType.
The following bugs have been fixed: When using the Data Binding library, variable names with underscores were causing compilation errors. Adding a SliceProvider was causing compilation errors in projects that did not use androidx. Some Kotlin unit tests were not being run. Kotlin versions 1. R8 parsing of ProGuard rules has been improved.
The following bugs have been fixed: Attempting to run the Kotlin Main class failed with an error: "Error: Could not find or load main class Using the Rerun failed tests command in the Run window sometimes incorrectly returned the message "No tests were found".
The compiler now uses tools annotations from the base project when available. Android Studio crashed during fragment transitions when using profilers. Then preview your layout on any screen size by selecting one of various device configurations or by simply resizing the preview window. Find opportunities to reduce your Android app size by inspecting the contents of your app APK file, even if it wasn't built with Android Studio. Inspect the manifest file, resources, and DEX files.
Compare two APKs to see how your app size changed between app versions. Install and run your apps faster than with a physical device and simulate different configurations and features, including ARCore, Google's platform for building augmented reality experiences.
Powered by Gradle, Android Studio's build system allows you to customize your build to generate multiple build variants for different devices from a single project. The built-in profiling tools provide realtime statistics for your app's CPU, memory, and network activity.
Identify performance bottlenecks by recording method traces, inspecting the heap and allocations, and see incoming and outgoing network payloads. See the Android Studio release notes. More downloads are available in the download archives. For information on recommended devices and specifications, as well as Android Emulator support, visit chromeos.
If you're new to Android development, check out the following resources to get started. Build your first app Start writing code in Android Studio by following the tutorial to Build your first app. Learn Android with interactive video training in the Android Fundamentals Udacity course. For help installing Android Studio, see the Install guide. Android Studio. Download What's new User guide Preview. Android Developers.
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