بونوکس

دسته: اخبار اندروید

  • Android Developers Blog: Announcing Jetpack Navigation 3



    Posted by Don Turner – Developer Relations Engineer

    Navigating between screens in your app should be simple, shouldn’t it? However, building a robust, scalable, and delightful navigation experience can be a challenge. For years, the Jetpack Navigation library has been a key tool for developers, but as the Android UI landscape has evolved, particularly with the rise of Jetpack Compose, we recognized the need for a new approach.

    Today, we’re excited to introduce Jetpack Navigation 3, a new navigation library built from the ground up specifically for Compose. For brevity, we’ll just call it Nav3 from now on. This library embraces the declarative programming model and Compose state as fundamental building blocks.

    Why a new navigation library?

    The original Jetpack Navigation library (sometimes referred to as Nav2 as it’s on major version 2) was initially announced back in 2018, before AndroidX and before Compose. While it served its original goals well, we heard from you that it had several limitations when working with modern Compose patterns.

    One key limitation was that the back stack state could only be observed indirectly. This meant there could be two sources of truth, potentially leading to an inconsistent application state. Also, Nav2’s NavHost was designed to display only a single destination – the topmost one on the back stack – filling the available space. This made it difficult to implement adaptive layouts that display multiple panes of content simultaneously, such as a list-detail layout on large screens.

    illustration of single pane and two-pane layouts showing list and detail features

    Figure 1. Changing from single pane to multi-pane layouts can create navigational challenges

    Founding principles

    Nav3 is built upon principles designed to provide greater flexibility and developer control:

      • You own the back stack: You, the developer, not the library, own and control the back stack. It’s a simple list which is backed by Compose state. Specifically, Nav3 expects your back stack to be SnapshotStateList<T> where T can be any type you choose. You can navigate by adding or removing items (Ts), and state changes are observed and reflected by Nav3’s UI.
      • Get out of your way: We heard that you don’t like a navigation library to be a black box with inaccessible internal components and state. Nav3 is designed to be open and extensible, providing you with building blocks and helpful defaults. If you want custom navigation behavior you can drop down to lower layers and create your own components and customizations.
      • Pick your building blocks: Instead of embedding all behavior within the library, Nav3 offers smaller components that you can combine to create more complex functionality. We’ve also provided a “recipes book” that shows how to combine components to solve common navigation challenges.

    illustration of the Nav3 display observing changes to the developer-owned back stack

    Figure 2. The Nav3 display observes changes to the developer-owned back stack.

    Key features

      • Adaptive layouts: A flexible layout API (named Scenes) allows you to render multiple destinations in the same layout (for example, a list-detail layout on large screen devices). This makes it easy to switch between single and multi-pane layouts.
      • Modularity: The API design allows navigation code to be split across multiple modules. This improves build times and allows clear separation of responsibilities between feature modules.

        moving image demonstrating custom animations and predictive back features on a mobile device

        Figure 3. Custom animations and predictive back are easy to implement, and easy to override for individual destinations.

        Basic code example

        To give you an idea of how Nav3 works, here’s a short code sample.

        // Define the routes in your app and any arguments.
data object Home
data class Product(val id: String)

// Create a back stack, specifying the route the app should start with.
val backStack = remember { mutableStateListOf<Any>(Home) }

// A NavDisplay displays your back stack. Whenever the back stack changes, the display updates.
NavDisplay(
    backStack = backStack,

    // Specify what should happen when the user goes back
    onBack = { backStack.removeLastOrNull() },

    // An entry provider converts a route into a NavEntry which contains the content for that route.
    entryProvider = { route ->
        when (route) {
            is Home -> NavEntry(route) {
                Column {
                    Text("Welcome to Nav3")
                    Button(onClick = {
                        // To navigate to a new route, just add that route to the back stack
                        backStack.add(Product("123"))
                    }) {
                        Text("Click to navigate")
                    }
                }
            }
            is Product -> NavEntry(route) {
                Text("Product ${route.id} ")
            }
            else -> NavEntry(Unit) { Text("Unknown route: $route") }
        }
    }
)

        Get started and provide feedback

        To get started, check out the developer documentation, plus the recipes repository which provides examples for:

          • common navigation UI, such as a navigation rail or bar
          • conditional navigation, such as a login flow
          • custom layouts using Scenes

        We plan to provide code recipes, documentation and blogs for more complex use cases in future.

        Nav3 is currently in alpha, which means that the API is liable to change based on feedback. If you have any issues, or would like to provide feedback, please file an issue.

        Nav3 offers a flexible and powerful foundation for building modern navigation in your Compose applications. We’re really excited to see what you build with it.

        Explore this announcement and all Google I/O 2025 updates on io.google starting May 22.



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  • Engage users on Google TV with excellent TV apps



    Posted by Shobana Radhakrishnan – Senior Director of Engineering, Google TV, and Paul Lammertsma – Developer Relations Engineer, Android

    Over the past year, Google TV and Android TV achieved over 270 million monthly active devices, establishing one of the largest smart TV OS footprints. Building on this momentum, we are excited to share new platform features and developer tools designed to help you increase app engagement with our expanding user base.

    https://www.youtube.com/watch?v=OosLbRBM9dA

    Google TV with Gemini capabilities

    Earlier this year, we announced that we’ll bring Gemini capabilities to Google TV, so users can speak more naturally and conversationally to find what to watch and get answers to complex questions.

    A user pulls up Gemini on a TV asking for kid-friendly movie recommendations similar to Jurassic Park. Gemini responds with several movie recommendations

    After each movie or show search, our new voice assistant will suggest relevant content from your apps, significantly increasing the discoverability of your content.

    A user pulls up Gemini on a TV asking for help explaining the solar system to a first grader. Gemini responds with YouTube videos to help explain the solar system

    Plus, users can easily ask questions about topics they’re curious about and receive insightful answers with supporting videos.

    We’re so excited to bring this helpful and delightful experience to users this fall.

    Video Discovery API

    Today, we’ve also opened partner enrollment for our Video Discovery API.

    Video Discovery optimizes Resumption, Entitlements, and Recommendations across all Google TV form factors to enhance the end-user experience and boost app engagement.

      • Resumption: Partners can now easily display a user’s paused video within the ‘Continue Watching’ row from the home screen. This row is a prime location that drives 60% of all user interactions on Google TV.
      • Entitlements: Video Discovery streamlines entitlement management, which matches app content to user eligibility. Users appreciate this because they can enjoy personalized recommendations without needing to manually update all their subscription details. This allows partners to connect with users across multiple discovery points on Google TV.
      • Recommendations: Video Discovery even highlights personalized content recommendations based on content that users watched inside apps.

    Partners can begin incorporating the Video Discovery API today, starting with resumption and entitlement integrations. Check out g.co/tv/vda to learn more.

    Jetpack Compose for TV

    Compose for TV 1.0 expands on the core and Material Compose libraries

    Last year, we launched Compose for TV 1.0 beta, which lets you build beautiful, adaptive UIs across Android, including Android TV OS.

    Now, Compose for TV 1.0 is stable, and expands on the core and Material Compose libraries. We’ve even seen how the latest release of Compose significantly improves app startup within our internal benchmarking mobile sample, with roughly a 20% improvement compared with the March 2024 release. Because Compose for TV builds upon these libraries, apps built with Compose for TV should also see better app startup times.

    New to building with Compose, and not sure where to start? Our updated Jetcaster audio streaming app sample demonstrates how to use Compose across form factors. It includes a dedicated module for playing podcasts on TV by combining separate view models with shared business logic.

    Focus Management Codelab

    We understand that focus management can be challenging at times. That’s why we’ve published a codelab that reviews how to set initial focus, prepare for unexpected focus traversal, and efficiently restore focus.

    Memory Optimization Guide

    We’ve released a comprehensive guide on memory optimization, including memory targets for low RAM devices as well. Combined with Android Studio’s powerful memory profiler, this helps you understand when your app exceeds those limits and why.

    In-App Ratings and Reviews

    Ratings and reviews entry point forJetStream sample app on TV

    Moreover, app ratings and reviews are essential for developers, offering quantitative and qualitative feedback on user experiences. Now, we’re extending the In-App Ratings and Reviews API to TV to allow developers to prompt users for ratings and reviews directly from Google TV. Check out our recent blog post detailing how to easily integrate the In-App Ratings and Reviews API.

    Android 16 for TV

    Android 16 for TV

    We’re excited to announce the upcoming release of Android 16 for TV. Developers can begin using the latest beta today. With Android 16, TV developers can access several great features:

      • Platform support for the Eclipsa Audio codec enables creators to use the IAMF spatial audio format. For ExoPlayer support that includes previous platform versions, see ExoPlayer’s IAMF decoder module.
      • There are various improvements to media playback speed, consistency and efficiency, as well as HDMI-CEC reliability and performance optimizations for 64-bit kernels.
      • Additional APIs and user experiences from Android 16 are also available. We invite you to explore the complete list from the Android 16 for TV release notes.

    What’s next

    We’re incredibly excited to see how these announcements will optimize your development journey, and look forward to seeing the fantastic apps you’ll launch on the platform!

    Explore this announcement and all Google I/O 2025 updates on io.google starting May 22.



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  • What’s new in Android development tools



    Posted by Mayank Jain – Product Manager, Android Studio

    Android Studio continues to advance Android development by empowering developers to build better app experiences, faster. Our focus has been on improving AI-driven functionality with Gemini, streamlining UI creation and testing, and helping you future-proof apps for the evolving Android ecosystem. These innovations accelerate development cycles, improve app quality, and help you stay ahead in the fast-paced world of mobile development.

    You can check out the What’s new in Android Developer Tools session at Google I/O 2025 to see some of the new features in action or better yet, try them out yourself by downloading Android Studio Narwhal Feature Drop (2025.2.1) in the preview release channel. Here’s a look at our latest developments:

    Get the latest Gemini 2.5 Pro model in Android Studio

    The power of artificial intelligence through Gemini is now deeply integrated into Android Studio, helping you at all stages of Android app development. Now with access to Gemini 2.5 Pro, we’re continuing to look for new ways to use AI to supercharge Android development — and help you build better app experiences, faster.

    Journeys for Android Studio

    We’re also introducing agentic AI with Gemini in Android Studio.Testing your app is now much easier when you create journeys – just describe the actions and assertions in natural language for the user journeys you want to test, and Gemini performs the tests for you. Creating journeys lets you test your app’s critical user journeys across various devices without writing extensive code. You can then run these tests on local physical or virtual Android devices to validate that the test worked as intended by reviewing detailed results directly within the IDE. Although the feature is experimental, the goal is to increase the speed that you can ship high-quality code, while significantly reducing the amount of time you spend manually testing, validating, or reproducing issues.

    moving image of Gemini testing an app in Android Studio

    Journeys for Android Studio uses Gemini to test your app.

    https://www.youtube.com/watch?v=mP1tlIKK0R4

    Suggested fixes for crashes with Gemini

    The App Quality Insights panel has a great new feature. The crash insights now analyzes your app’s source code referenced from the crash, and not only offers a comprehensive analysis and explanation of the crash, in some cases it even offers a source fix! With just a few clicks, you are able to review the changes, accept the code suggestions, and push the changes to your source control. Now you can determine the root cause of a crash and fix it much faster!

    screenshot of crash analysis with Gemini in Android Studio

    Crash analysis with Gemini

    AI features in Studio Labs (stable releases only)

    We’ve heard feedback that developers want to access AI features in stable channels as soon as possible. You can now discover and try out the latest AI experimental features through the Studio Labs menu in the Settings menu starting with Narwhal stable release. You can get a first look at AI experiments, share your feedback, and help us bring them into the IDE you use everyday. Go to the Studio Labs tab in Settings and enable the features you would like to start using. These AI features are automatically enabled in canary releases and no action is required.

    screenshot of AI features in Studio Labs

    AI features in Studio Labs

      • Compose preview generation with Gemini

        • Gemini can automatically generate Jetpack Compose preview code saving you time and effort. You can access this feature by right-clicking within a composable and navigating to Gemini > Generate Compose Preview or Generate Compose Preview for this file, or by clicking the link in an empty preview panel. The generated preview code is presented in a diff view that enables you to quickly accept, edit, or reject the suggestions, providing a faster way to visualize your composables.

        moving image of compose preview generation with gemini in Android Studio

        Compose Preview generation with Gemini

      • Transform UI with Gemini

        • You can now transform UI code within the Compose Preview environment using natural language directly in the preview. To use it, right click in the Compose Preview and select “Transform UI With Gemini”. Then enter your natural language requests, such as “Center align these buttons,” to guide Gemini in adjusting your layout or styling, or select specific UI elements in the preview for better context. Gemini will then edit your Compose UI code in place, which you can review and approve, speeding up the UI development workflow.

        side by side screenshots showing transforming UI with Gemini in Android Studio

        Transform UI with Gemini

      • Image attachment in Gemini

        • You can now attach image files and provide additional information along with your prompt. For example: you can attach UI mock-ups or screenshots to tell Gemini context about your app’s layout. Consequently, Gemini can generate Compose code based on a provided image, or explain the composables and data flow of a UI screenshot.

        screenshot of image atteachment and preview generation via Gemini in Android Studio

        Image attachment and preview generation via Gemini in Android Studio

      • @File context in Gemini

        • You can now attach your project files as context in chat interactions with Gemini in Android Studio. This lets you quickly reference files in your prompts for Gemini. In the Gemini chat input, type @ to bring up a file completion menu and select files to attach. You can also click the Context drop-down to see which files were automatically attached by Gemini. This gives you more control over the context sent to Gemini.

        screenshot of @File context in Gemini in Android Studio

        @File context in Gemini

    Rules in Prompt Library

    Rules in Gemini let you define preferred coding styles or output formats within the Prompt Library. You can also mention your preferred tech stack and languages. When you set these preferences once, they are automatically applied to all subsequent prompts sent to Gemini. Rules help the AI understand project standards and preferences for more accurate and tailored code assistance. For example, you can create a rule such as “Always give me concise responses in Kotlin.”

    prompt library in Android Studio

    Prompt Library Improvements

    Gemini in Android Studio for businesses

    Gemini in Android Studio for businesses is now available. It provides all the benefits of Gemini in Android Studio, plus enterprise-grade privacy and security features backed by Google Cloud — giving your team the confidence they need to deploy AI at scale while keeping their data protected.

    Developers and admins can unlock these features and benefits by subscribing to Gemini Code Assist Standard or Enterprise editions. Discover the full list of Gemini in Android for business features available for your organization.

    Improved tools for creating great user experiences

    Elevate your Compose UI development with the latest Android Studio enhancements.

    Compose preview improvements

    Compose preview interaction is now more efficient with the latest navigation improvements. Click on the preview name to jump to the preview definition or click the individual component to jump to the function where it’s defined. Hover states provide immediate visual feedback as you mouse over a preview frame. Improved keyboard arrow navigation eases movement through multiple previews, enabling faster UI iteration and refinement. Additionally, the Compose preview picker is now also available in the stable release.

    moving image of compose preview navigation improvements in Android Studio

    Compose preview navigation improvements

    Compose preview picker in Android Studio

    Compose preview picker

    Resizable Previews

    While in Compose Preview’s focus mode in Android Studio, you can now resize the preview window by dragging its edges. This gives you instant visual feedback on how your UI adapts to different screen sizes, ensuring responsiveness and visual consistency. This rapid iteration helps create UIs that look great on any Android device.

    ALT TEXT

    Resizable Preview

    Embedded Android XR Emulator

    The Android XR Emulator now launches by default in the embedded state. You can now deploy your application, navigate the 3D space and use the Layout Inspector directly inside Android Studio, streamlining your development flow.

    Embedded XR emulator in Android Studio

    Embedded XR Emulator

    Improved tools for future-proofing and testing your Android apps

    We’ve enhanced some of your favorite features so that you can test more confidently, future-proof your apps, and ensure app compatibility across a wide range of devices and Android versions.

    Streamlined testing with Backup and Restore support

    Android Studio offers built-in Backup and Restore support by letting you trigger app backups on connected devices directly from the Running Devices window. You can also configure your Run/Debug settings to automatically restore from a previous backup when launching your app. This simplifies the process of validating your app’s Backup and Restore implementation and speeds up development by reducing manual setup for testing.

    Streamlined testing with backup and restore support in Android Studio

    Streamlined testing with Backup and Restore support

    Android’s transition to 16 KB Page Size

    The underlying architecture of Android is evolving, and a key step forward is the transition to 16 KB page sizes. This fundamental change requires all Android apps with native code or dependencies to be recompiled for compatibility. To help you navigate this transition smoothly, Android Studio now offers proactive warnings when building APKs or Android App Bundles that are incompatible with 16 KB devices. Using the APK Analyzer, you can also find out which libraries are incompatible with 16 KB devices. To test your apps in this new environment, a dedicated 16 KB emulator target is also available in Android Studio alongside existing 4 KB images.

    Android’s transition to 16 KB page size in Android Studio

    Android’s transition to 16 KB page size

    Backup and Sync your Studio settings

    When you sign in with your Google account or a JetBrains account in Android Studio, you can now sync your customizations and preferences across all installs and restore preferences automatically on remote Android Studio instances. Simply select “Enable Backup and Sync” while you’re logging in to Android Studio, or from the Settings > Backup and Sync page, and follow the prompts.

    Backup and sync settings in Android Studio

    Backup and Sync your Studio settings

    Increasing developer productivity with Android’s Kotlin Multiplatform improvements

    Kotlin Multiplatform (KMP) enables teams to reach new audiences across Android and iOS with less development time. Usage has been growing in the developer community, with apps such as Google Docs now using it in production. We’ve released new Android Studio KMP project templates, updated Jetpack libraries and new codelabs (Get Started with KMP and Migrate Existing Apps to Room KMP) to help developers who are looking to get started with KMP.

    Experimental and features that are coming soon to Android Studio

    Android Studio Cloud (experimental)

    Android Studio Cloud is now available as an experimental public preview, accessible through Firebase Studio. This service streams a Linux virtual machine running Android Studio directly to your web browser, enabling Android application development from anywhere with an internet connection. Get started quickly with dedicated workspaces featuring pre-downloaded Android SDK components. Explore sample projects or seamlessly access your existing Android app projects from GitHub without a local installation. Please note that Android Studio Cloud is currently in an experimental phase. Features and capabilities are subject to significant change, and users may encounter known limitations.

    Android Studio Cloud

    Version Upgrade Agent (coming soon)

    The Version Upgrade Agent, as part of Gemini in Android Studio, is designed to save you time and effort by automating your dependency upgrades. It intelligently analyzes your Android project, parses the release notes for included libraries, and proposes updates directly from your libs.versions.toml file or the refactoring menu (right-click > Refactor > Update dependencies). The agent automatically updates dependencies to the latest compatible version, builds the project, fixes any errors, and repeats until all errors are fixed. Once the dependencies are upgraded, the agent generates a report showing the changes it made, as well as a high level summary highlighting the changes included in the updated libraries.

    Version updgrade agent in Android Studio

    Version Upgrade Agent

    https://www.youtube.com/watch?v=ubyPjBesW-8

    Agent Mode (coming soon)

    Agent Mode is a new autonomous AI feature using Gemini, designed to handle complex, multi-stage development tasks that go beyond typical AI assistant capabilities, invoking multiple tools to accomplish tasks on your behalf.

    You can describe a complex goal, like integrating a new API, and the agent will formulate an execution plan that spans across files in your project — adding necessary dependencies, editing files, and iteratively fixing bugs. This feature aims to empower all developers to tackle intricate challenges and accelerate the building and prototyping process. You can access it via the Gemini chat window in Android Studio.

    Agent Mode in Android Studio

    Agent Mode

    Play Policy Insights beta in Android Studio (coming soon)

    Android Studio now includes richer insights and guidance on Google Play policies that might impact your app. This information, available as lint checks, helps you build safer apps from the start, preventing issues that could disrupt your launch process and cost more time and resources to fix later on. These lint checks will present an overview of the policy, do and don’ts, and links to Play policy pages where you can find more information about the policy.

    Play Policy Insights beta in Android Studio

    Play Policy Insights beta in Android Studio

    IntelliJ Platform Update (2025.1)

    Here are some important IDE improvements in the IntelliJ IDEA 2025.1 platform release

      • Kotlin K2 mode: Android Studio now supports Kotlin K2 mode in Android-specific features requiring language support such as Live Edit, Compose Preview and many more

      • Improved dependency resolution in Kotlin build scripts: Makes your Kotlin build scripts for Android projects more stable and predictable

      • Hints about code alterations by Kotlin compiler plugins: Gives you clearer insights into how plugins used in Android development modify your Kotlin code

      • Automatic download of library sources for Gradle projects: Simplifies debugging and understanding your Android project dependencies by providing immediate access to their source code

      • Support for Gradle Daemon toolchains: Helps prevent potential JVM errors during your Android project builds and ensures smoother synchronization

      • Automatic plugin updates: Keeps your Android development tools within IntelliJ IDEA up-to-date effortlessly

    To Summarize

    Android Studio Narwhal Feature Drop (2025.2.1) is now available in the Android Studio canary channel with some amazing features to help your Android development

    AI-powered development tools for Android

      • Journeys for Android Studio: Validate app flows easily using tests and assertions in natural language
      • Suggested fixes for crashes with Gemini: Determine the root cause of a crash and fix it much faster with Gemini
      • AI features in Studio Labs
          • Compose preview generation with Gemini: Generate Compose previews with Gemini’s code suggestions
          • Transform UI with Gemini: Transform UI in Compose Preview with natural language, speeding development
          • Image attachment in Gemini: Attach images to Gemini for context-aware code generation
          • @File context in Gemini: Reference project files in Gemini chats for quick AI prompts
      • Rules in Prompt Library: Define preferred coding styles or output formats within the Prompt Library

    Improved tools for creating great user experiences

      • Compose preview improvements: Navigate the Compose Preview using clickable names and components
      • Resizable preview: Instantly see how your Compose UI adapts to different screen sizes
      • Embedded XR Emulator: XR Emulator now launches by default in the embedded state

    Improved tools for future-proofing and testing your Android apps

      • Streamlined testing with Backup and Restore support: Effortless app testing, trigger backups, auto-restore for faster validation
      • Android’s transition to 16 KB Page Size: Prepare for Android’s 16KB page size with Studio’s early warnings and testing
      • Backup and Sync your Studio settings: Sync Android Studio settings across devices and restore automatically for convenience
      • Increasing developer productivity with Android’s Kotlin Multiplatform improvements: simplified cross-platform Android and iOS development with new tools

    Experimental and features that are coming soon to Android Studio

      • Android Studio Cloud (experimental): Develop Android apps from any browser with just an internet connection
      • Version Upgrade Agent (coming soon): Automated dependency updates save time and effort, ensuring projects stay current
      • Agent Mode (coming soon): Empowering developers to tackle multistage complex tasks that go beyond typical AI assistant capabilities
      • Play Policy Insights beta in Android Studio (coming soon): Insights and guidance on Google Play policies that might impact your app

    How to get started

    Ready to try the exciting new features in Android Studio?

    You can download the canary version of Android Studio Narwhal Feature Drop (2025.1.2) today to incorporate these new features into your workflow or try the latest AI features using Studio Labs in the stable version of Android Studio Meerkat. You can also install them side by side by following these instructions.

    As always, your feedback is important to us – check known issues, report bugs, suggest improvements, and be part of our vibrant community on LinkedIn Medium, YouTube, or X. Let’s build the future of Android apps together!

    Explore this announcement and all Google I/O 2025 updates on io.google starting May 22.





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  • In-App Ratings and Reviews for TV



    Posted by Paul Lammertsma – Developer Relations Engineer

    Ratings and reviews are essential for developers, offering quantitative and qualitative feedback on user experiences. In 2022, we enhanced the granularity of this feedback by segmenting these insights by countries and form factors.

    Now, we’re extending the In-App Ratings and Reviews API to TV to allow developers to prompt users for ratings and reviews directly from Google TV.

    Ratings and reviews on Google TV

    Ratings and reviews entry point forJetStream sample app on TV

    Users can now see rating averages, browse reviews, and leave their own review directly from an app’s store listing on Google TV.

    Ratings and written reviews input screen on TV

    Users can interact with in-app ratings and reviews on their TVs by doing the following:

      • Select ratings using the remote control D-pad.
      • Provide optional written reviews using Gboard’s on-screen voice input, or by easily typing from their phone.
      • Send mobile notifications to themselves to complete their TV app review directly on their phone.

    User instructions for submitting TV app ratings and reviews on mobile

    Additionally, users can leave reviews for other form factors directly from their phone by simply selecting the device chip when submitting an app rating or writing a review.

    We’ve already seen a considerable lift in app ratings on TV since bringing these changes to Google TV, and now, we’re making it possible for developers to trigger a ratings prompt as well.

    Before we look at the integration, let’s first carefully consider the best time to request a review prompt. First, identify optimal moments within your app to request user feedback, ensuring prompts appear only when the UI is idle to prevent interruption of ongoing content.

    In-App Review API

    Integrating the Google Play In-App Review API is the same as on mobile and it’s only a couple of method calls:

    val manager = ReviewManagerFactory.create(context)
manager.requestReviewFlow().addOnCompleteListener { task ->
    if (task.isSuccessful) {
        // We got the ReviewInfo object
        val reviewInfo = task.result
        manager.launchReviewFlow(activity, reviewInfo)
    } else {
        // There was some problem, log or handle the error code
        @ReviewErrorCode val reviewErrorCode =
            (task.getException() as ReviewException).errorCode
    }
}

    First, invoke requestReviewFlow() to obtain a ReviewInfo object which is used to launch the review flow. You must include an addOnCompleteListener() not just to obtain the ReviewInfo object, but also to monitor for any problems triggering this flow, such as the unavailability of Google Play on the device. Note that ReviewInfo does not offer any insights on whether or not a prompt appeared or which action the user took if a prompt did appear.

    The challenge is to identify when to trigger launchReviewFlow(). Track user actions—identifying successful journeys and points where users encounter issues—so you can be confident they had a delightful experience in your app.

    For this method, you may optionally also include an addOnCompleteListener() to ensure it resumes when the returned task is completed.

    Note that due to throttling of how often users are presented with this prompt, there are no guarantees that the ratings dialog will appear when requesting to start this flow. For best practices, check this guide on when to request an in-app review.

    Get started with In-App Reviews on Google TV

    You can get a head start today by following these steps:

    1. Identify successful journeys for users, like finishing a movie or TV show season.
    2. Identify poor experiences that should be avoided, like buffering or playback errors.
    3. Integrate the Google Play In-App Review API to trigger review requests at optimal moments within the user journey.
    4. Test your integration by following the testing guide.
    5. Publish your app and continuously monitor your ratings by device type in the Play Console.

    We’re confident this integration enables you to elevate your Google TV app ratings and empowers your users to share valuable feedback.

    Play Console Ratings graphic

    Resources

    Explore this announcement and all Google I/O 2025 updates on io.google starting May 22.



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  • What’s new in Google Play



    Posted by Paul Feng, VP of Product Management, Google Play

    At Google Play, we’re dedicated to helping people discover experiences they’ll love, while empowering developers like you to bring your ideas to life and build successful businesses.

    At this year’s Google I/O, we unveiled the latest ways we’re empowering your success with new tools that provide robust testing and actionable insights. We also showcased how we’re continuing to build a content-rich Play Store that fosters repeat engagement alongside new subscription capabilities that streamline checkout and reduce churn.

    Check out all the exciting developments from I/O below and learn how they’ll help you grow your business on Google Play.

    Helping you succeed every step of the way

    Last month, we introduced our latest Play Console updates focused on improving quality and performance. A redesigned app dashboard centered around four developer objectives (Test and release, Monitor and improve, Grow users, Monetize) and new Android vitals metrics offer quick insights and actionable suggestions to proactively improve the user experience.

    Get more actionable insights with new Play Console overview pages

    Building on these updates, we’ve launched dedicated overview pages for two developer objectives: Test and release and Monitor and improve. These new pages bring together more objective-related metrics, relevant features, and a “Take action” section with contextual, dynamic advice. Overview pages for Grow and Monetize will be coming soon.

    Halt fully-rolled out releases when needed

    Historically, a release at 100% live meant there was no turning back, leaving users stuck with a flawed version until a new update rolled out. Soon, you’ll be able to halt fully-live releases, through Play Console and the Publishing API to stop the distribution of problematic versions to new users.

    a moving screen grab of release manager in Play Console

    You’ll soon be able to halt fully live releases directly from Play Console and the Publishing API, stopping the distribution of problematic versions to new users.

    Optimize your store listings with better management tools and metrics

    We launched two tools to enhance your store listings. The asset library makes it easy to upload, edit, and view your visual assets. Upload them from Google Drive, organize with tags, and crop for repurposing. And with new open metrics, you gain deeper insights into listing performance so you can better understand how they attract, engage, and re-engage users.

    Stay ahead of threats with the Play Integrity API

    We’re committed to robust security and preventing abuse so you can thrive on Play’s trusted platform. The Play Integrity API continuously evolves to combat emerging threats, with these recent enhancements:

      • Stronger abuse detection for all developers that leverages the latest Android hardware-security with no developer effort required.
      • Device security update checks to safeguard your app’s sensitive actions like transfers or data access.
      • Public beta for device recall which enables you to detect if a device is being reused for abuse or repeated actions, even after a device reset. You can express interest in this beta.

    Unlocking more discovery and engagement for your apps and its content

    Last year, we shared our vision for a content-rich Google Play that has already delivered strong results. Year-over-year, Apps Home has seen over a 25% increase in average monthly visitors with apps seeing a 10% growth in acquisitions and double-digit growth in app spend for those monetizing on Google Play. Building on that vision, we’re introducing even more updates to elevate your discovery and engagement, both on and off the store.

    For example, curated spaces, launched last year, celebrate seasonal interests like football (soccer) in Brazil and cricket in India, and evergreen interests like comics in Japan. By adding daily content—match highlights, promotions, and editorial articles directly on the Apps Home—these spaces foster discovery and engagement. Curated spaces are a hit with over 920,000 highly engaged users in Japan returning to the comics space monthly. Building on this momentum, we are expanding to more locations and categories this year.

    a moving image of three mobile devices displaying curated spaces on the Play Store

    Our curated spaces add daily content to foster repeat discovery and engagement.

    We’re launching new topic browse pages that feature timely, relevant, and visually engaging content. Users can find them throughout the Store, including Apps Home, store listing pages, and search. These pages debut this month in the US with Media & Entertainment, showcasing over 100,000 shows, movies, and select sports. More localized topic pages will roll out globally later this year.

    a moving image of two mobile devices displaying new browse pages for media and entertainment in the Play Store

    New topic browse pages for media and entertainment are rolling out this month in the US.

    We’re expanding Where to Watch to more markets, including the UK, Korea, Indonesia, and Mexico, to help users find and deep-link directly into their subscribed apps for movies and TV. Since launching in the US in November 2024, we’ve seen promising results: People who view app content through Where to Watch return to Play more frequently and increase their content search activity by 30%.

    We’re also enhancing how your content is displayed on the Play Store. Starting this July, all app developers can add a hero content carousel and a YouTube playlist carousel to their store listings. These formats will help showcase your best content and drive greater user engagement and discovery.

    For apps best experienced through sound, we’re launching audio samples on the Apps Home. A simple tap offers users a brief escape into your audio content. In early testing, audio samples made users 3x more likely to install or open an app! This feature is now available for all Health & Wellness app developers with users in the US, with more categories and markets coming soon. You can express your interest in promoting audio content.

    a moving image of three mobile devices displaying how content is displayed on the Play Store

    We’re enhancing how your content is displayed on the Play Store, 
    offering new ways to showcase your app and drive user engagement.

    Helping you take advantage of deeper engagement on Play, on and off the Store

    Last year, we introduced Engage SDK, a unified solution to deliver personalized content and guide users to relevant in-app experiences. Integrating it unlocks surfaces like Collections, our immersive full-screen experience bringing content directly to the user’s home screen.

    We’re rolling out updates to expand your content’s reach even further:

      • Engage SDK content is coming to the Play Store this summer, in addition to existing spaces like Collections and Entertainment Space on select Android tablets.
      • New content categories are now supported, starting today with Travel.
      • Collections are rolling out globally to Google Play markets starting today, including Brazil, India, Indonesia, Japan, and Mexico.

    Integrate with Engage SDK today to take advantage of this new expansion and boost re-engagement. Try our codelab to test the ease of publishing content with Engage SDK and express interest in the developer preview.

    a mobile device displaying Collections on the Play Store

    Engage SDK now supports Collections for Travel. 
    Users can find timely itineraries and recent searches, all in one convenient place.

    Maximizing your revenue with subscriptions enhancements

    With over a quarter-billion subscriptions, Google Play is one of the world’s largest subscriptions platforms. We’re committed to helping you turn engaged users into revenue growth by continually enhancing our tools to meet evolving customer needs.

    To streamline your purchase flow, we’re introducing multi-product checkout for subscriptions. This lets you sell subscription add-ons alongside base subscriptions, all under a single, aligned payment schedule. Users get a simplified experience with one price and one transaction, while you gain more control over how subscribers upgrade, downgrade, or manage their add-ons.

    a mobile devices displaying multi-checkout where a base subscription plus add ons in shown a singluar transaction on the Play Store

    You can now sell base subscriptions and add-ons together 
    in a single, streamlined transaction.

    To help you retain more of your subscribers, we’re now showcasing subscription benefits in more places across Play – including the Subscriptions Center, in reminder emails, and during purchase and cancellation flows. This increased visibility has already reduced voluntary churn by 2%. Be sure to enter your subscription benefits in Play Console so you can leverage this powerful new capability.

    five mobile devices showing subscriptions in Play

    To help reduce voluntary churn, we’re showcasing your subscriptions benefits across Play.

    Reducing involuntary churn is a key factor in optimizing your revenue. When payment methods unexpectedly decline, users might unintentionally cancel. Now, instead of immediate cancellation, you can now choose a grace period (up to 30 days) or an account hold (up to 60 days). Developers who increased the decline recovery period – from 30 to 60 days – saw an average 10% reduction in involuntary churn for renewals.

    On top of this, we’re expanding our commitment to get more buyers ready for purchases throughout their entire journey. This includes prompting users to set up payment methods and verification right at device setup. After setup, we’ve integrated prompts into highly visible areas like the Play and Google account menus. And as always, we’re continuously enabling payments in more markets and expanding payment options. Plus, our AI models now help optimize in-app transactions by suggesting the right payment method at the right time, and we’re bringing buyers back with effective cart abandonment reminders.

    Grow your business on Google Play

    Our latest updates reinforce our commitment to fostering a thriving Google Play ecosystem. From enhanced discovery and robust tools to new monetization avenues, we’re empowering you to innovate and grow. We’re excited for the future we’re building together and encourage you to use these new capabilities to create even more impactful experiences. Thank you for being an essential part of the Google Play community.

    Explore this announcement and all Google I/O 2025 updates on io.google starting May 22.



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  • Android Developers Blog: New in-car app experiences



    Posted by Ben Sagmoe – Developer Relations Engineer

    The in-car experience continues to evolve rapidly, and Google remains committed to pushing the boundaries of what’s possible. At Google I/O 2025, we’re excited to unveil the latest advancements for drivers, car manufacturers, and developers, furthering our goal of a safe, seamless, and helpful connected driving experience.

    Today’s car cabins are increasingly digital, offering developers exciting new opportunities with larger displays and more powerful computing. Android Auto is now supported in nearly all new cars sold, with almost 250 million compatible vehicles on the road.

    We’re also seeing significant growth in cars powered by Android Automotive OS with Google built-in. Over 50 models are currently available, with more launching this year. This growth is fueled by a thriving app ecosystem, including over 300 apps already available on the Play Store. These include apps optimized for a safe and seamless experience while driving as well as entertainment apps for while you’re parked and waiting in your car—many of which are adaptive mobile apps that have been seamlessly brought to cars through the Car Ready Mobile Apps Program.

    A vibrant developer community is essential to delivering these innovative in-car experiences utilizing the different screens within the car cabin. This past year, we’ve focused on key areas to help empower developers to build more differentiated experiences in cars across both platforms, as we embark on the Gemini era in cars!

    Gemini for Cars

    Exciting news for in-car experiences: Gemini, Google’s advanced AI, is coming to vehicles! This unlocks a new era of safe and helpful interactions on the go.

    Gemini enables natural voice conversations and seamless multitasking, empowering drivers to get more done simply by speaking naturally. Imagine effortlessly finding charging stations or navigating to a location pulled directly from an email, all with just your voice.

    You can learn how to leverage Gemini’s potential to create engaging in-car experiences in your app.

    Navigation apps can integrate with Gemini using three core intent formats, allowing you to start navigation, display relevant search results, and execute custom actions, such as enabling users to report incidents like traffic congestion using their voice.

    Gemini for cars will be rolling out in the coming months. Get ready to build the next generation of in-car AI experiences!

    New developer programs and tools

    table of app categories showing availability in android Auto and cars with Google built-in, including media, navigation, point-of-interest, internet of things, weather, video, browsers, games, and communication such as messaging and voip

    Last year, we introduced car app quality tiers to inspire developers to create high quality in-car experiences. By developing your app in compliance with the Car ready tier, you can bring video, gaming, or browser apps to run while parked in cars with Google built-in with almost no additional effort. Learn more about Car Ready Mobile Apps.

    Your app can further shine in cars within the Car optimized and Car differentiated tiers to unlock experiences while the car is in motion, and also when transitioning between parked and driving modes, while utilizing the different screens within the modern car cabin. Check the car app quality guidelines for details.

    To start with, across both Android Auto and for cars with Google built-in, we’ve made some exciting improvements for Car App Library:

      • The Weather app category has graduated from beta: any developer can now publish weather apps to production tracks on both Android Auto and cars with Google Built-in. Before you publish your app, check that it meets the quality guidelines for weather apps.
      • Two new templates, the SectionedItemTemplate and MediaPlaybackTemplate, are now available in the Car App Library 1.8 alpha release for use on Android Auto. These templates are a great fit for building templated media apps, allowing for increased customization in layout and browsing structure.

        example of sectioneditemtemplate on the left and mediaplaybacktemplate on the right

    On Android Auto, many new app categories and capabilities are now in beta:

      • We are adding support for Building media apps with the Car App Library, enabling media app developers to build both richer and more complete experiences that users are used to on their phones. During beta, developers can build and publish media apps built using the Car App Library to internal testing and closed testing tracks. You can also express interest in being an early access partner to publish to production while the category is in beta. 

      • The communications category is in beta. We’ve simplified calling integration for calling apps by utilizing the CallsManager Jetpack API. Together with the templates provided by the Car App Library, this enables communications apps to build features like full message history, upcoming meetings list, rich in-call views, and more. During beta, developers can build and publish communications apps to internal testing and closed testing tracks. You can also express interest in being an early access partner to publish to production while the category is in beta.

      • Games are now supported in Android Auto, while parked, on phones running Android 15 and above. You can already find some popular titles like Angry Birds 2, Farm Heroes Saga, Candy Crush Soda Saga and Beach Buggy Racing 2. The Games category is in Beta and developers can publish games to internal testing and closed testing tracks. You can also express interest in being an early access partner to publish to production while the category is in beta.

    Finally, we have further simplified building, testing and distribution experience for developers building apps for Android Automotive OS cars with Google built-in:

      • Distribution through Google Play is more flexible than ever. It’s now possible for apps in the parked categories to distribute in the same APK or App Bundle to cars with Google built-in as to phones, including through the mobile release track. Learn more on how to Distribute to cars.

      • Android Automotive OS on Pixel Tablet is now generally available, giving you a physical device option for testing Android Automotive OS apps without buying or renting a car. Additionally, the most recent system images include support for acting as an Android Auto receiver, meaning you can use the same device to test both your app’s experience on Android Auto and Android Automotive OS. Apply for access to these images.

    The road ahead

    You can look forward to more updates later this year, including:

      • Video apps will be supported on Android Auto, starting with phones running Android 16 on select compatible cars. If your app is already adaptive, enabling your app experience while parked only requires minimal steps to distribute to cars.

      • For Android Automotive OS cars running Android 14+ with Google built-in, we are working with car manufacturers to add additional app compatibility, to enable thousands of adaptive mobile apps in the next phase of the Car Ready Mobile Apps Program.

      • Updated design documentation that visualizes car app quality guidelines and integration paths to simplify designing your app for cars.

      • Google Play Services for cars with Google built-in are expanding to bring them on-par with mobile, including:
          • a. Passkeys and Credential Manager APIs for a more seamless user sign-in experience.
          b. Quick Share, which will enable easy cross-device sharing from phone to car.

      • Pre-launch reports for Android Automotive OS are coming soon to the Play Console, helping you ensure app quality before distributing your app to cars.

    Be sure to keep up to date through goo.gle/cars-whats-new on these features and more as we continuously invest in the future of Android in the car. Stay tuned for more resources to help you build innovative and engaging experiences for drivers and passengers.

    Ready to publish your car app? Check our guidance for distributing to cars.

    Explore this announcement and all Google I/O 2025 updates on io.google starting May 22.



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  • On-device GenAI APIs as part of ML Kit help you easily build with Gemini Nano



    Posted by Caren Chang – Developer Relations Engineer, Chengji Yan – Software Engineer, Taj Darra – Product Manager

    We are excited to announce a set of on-device GenAI APIs, as part of ML Kit, to help you integrate Gemini Nano in your Android apps.

    To start, we are releasing 4 new APIs:

      • Summarization: to summarize articles and conversations
      • Proofreading: to polish short text
      • Rewriting: to reword text in different styles
      • Image Description: to provide short description for images

    Key benefits of GenAI APIs

    GenAI APIs are high level APIs that allow for easy integration, similar to existing ML Kit APIs. This means you can expect quality results out of the box without extra effort for prompt engineering or fine tuning for specific use cases.

    GenAI APIs run on-device and thus provide the following benefits:

      • Input, inference, and output data is processed locally
      • Functionality remains the same without reliable internet connection
      • No additional cost incurred for each API call

    To prevent misuse, we also added safety protection in various layers, including base model training, safety-aware LoRA fine-tuning, input and output classifiers and safety evaluations.

    How GenAI APIs are built

    There are 4 main components that make up each of the GenAI APIs.

    1. Gemini Nano is the base model, as the foundation shared by all APIs.
    2. Small API-specific LoRA adapter models are trained and deployed on top of the base model to further improve the quality for each API.
    3. Optimized inference parameters (e.g. prompt, temperature, topK, batch size) are tuned for each API to guide the model in returning the best results.
    4. An evaluation pipeline ensures quality in various datasets and attributes. This pipeline consists of: LLM raters, statistical metrics and human raters.

    Together, these components make up the high-level GenAI APIs that simplify the effort needed to integrate Gemini Nano in your Android app.

    Evaluating quality of GenAI APIs

    For each API, we formulate a benchmark score based on the evaluation pipeline mentioned above. This score is based on attributes specific to a task. For example, when evaluating the summarization task, one of the attributes we look at is “grounding” (ie: factual consistency of generated summary with source content).

    To provide out-of-box quality for GenAI APIs, we applied feature specific fine-tuning on top of the Gemini Nano base model. This resulted in an increase for the benchmark score of each API as shown below:

    Use case in English Gemini Nano Base Model ML Kit GenAI API
    Summarization 77.2 92.1
    Proofreading 84.3 90.2
    Rewriting 79.5 84.1
    Image Description 86.9 92.3

    In addition, this is a quick reference of how the APIs perform on a Pixel 9 Pro:

    Prefix Speed
    (input processing rate)    		 Decode Speed
    (output generation rate)
    Text-to-text 510 tokens/second 11 tokens/second
    Image-to-text 510 tokens/second + 0.8 seconds for image encoding 11 tokens/second

    Sample usage

    This is an example of implementing the GenAI Summarization API to get a one-bullet summary of an article:

    val articleToSummarize = "We are excited to announce a set of on-device generative AI APIs..."

// Define task with desired input and output format
val summarizerOptions = SummarizerOptions.builder(context)
    .setInputType(InputType.ARTICLE)
    .setOutputType(OutputType.ONE_BULLET)
    .setLanguage(Language.ENGLISH)
    .build()
val summarizer = Summarization.getClient(summarizerOptions)

suspend fun prepareAndStartSummarization(context: Context) {
    // Check feature availability. Status will be one of the following: 
    // UNAVAILABLE, DOWNLOADABLE, DOWNLOADING, AVAILABLE
    val featureStatus = summarizer.checkFeatureStatus().await()

    if (featureStatus == FeatureStatus.DOWNLOADABLE) {
        // Download feature if necessary.
        // If downloadFeature is not called, the first inference request will 
        // also trigger the feature to be downloaded if it's not already
        // downloaded.
        summarizer.downloadFeature(object : DownloadCallback {
            override fun onDownloadStarted(bytesToDownload: Long) { }

            override fun onDownloadFailed(e: GenAiException) { }

            override fun onDownloadProgress(totalBytesDownloaded: Long) {}

            override fun onDownloadCompleted() {
                startSummarizationRequest(articleToSummarize, summarizer)
            }
        })    
    } else if (featureStatus == FeatureStatus.DOWNLOADING) {
        // Inference request will automatically run once feature is      
        // downloaded.
        // If Gemini Nano is already downloaded on the device, the   
        // feature-specific LoRA adapter model will be downloaded very  
        // quickly. However, if Gemini Nano is not already downloaded, 
        // the download process may take longer.
        startSummarizationRequest(articleToSummarize, summarizer)
    } else if (featureStatus == FeatureStatus.AVAILABLE) {
        startSummarizationRequest(articleToSummarize, summarizer)
    } 
}

fun startSummarizationRequest(text: String, summarizer: Summarizer) {
    // Create task request  
    val summarizationRequest = SummarizationRequest.builder(text).build()

    // Start summarization request with streaming response
    summarizer.runInference(summarizationRequest) { newText -> 
        // Show new text in UI
    }

    // You can also get a non-streaming response from the request
    // val summarizationResult = summarizer.runInference(summarizationRequest)
    // val summary = summarizationResult.get().summary
}

// Be sure to release the resource when no longer needed
// For example, on viewModel.onCleared() or activity.onDestroy()
summarizer.close()

    For more examples of implementing the GenAI APIs, check out the official documentation and samples on GitHub:

    Use cases

    Here is some guidance on how to best use the current GenAI APIs:

    For Summarization, consider:

      • Conversation messages or transcripts that involve 2 or more users
      • Articles or documents less than 4000 tokens (or about 3000 English words). Using the first few paragraphs for summarization is usually good enough to capture the most important information.

    For Proofreading and Rewriting APIs, consider utilizing them during the content creation process for short content below 256 tokens to help with tasks such as:

      • Refining messages in a particular tone, such as more formal or more casual
      • Polishing personal notes for easier consumption later

    For the Image Description API, consider it for:

      • Generating titles of images
      • Generating metadata for image search
      • Utilizing descriptions of images in use cases where the images themselves cannot be displayed, such as within a list of chat messages
      • Generating alternative text to help visually impaired users better understand content as a whole

    GenAI API in production

    Envision is an app that verbalizes the visual world to help people who are blind or have low vision lead more independent lives. A common use case in the app is for users to take a picture to have a document read out loud. Utilizing the GenAI Summarization API, Envision is now able to get a concise summary of a captured document. This significantly enhances the user experience by allowing them to quickly grasp the main points of documents and determine if a more detailed reading is desired, saving them time and effort.

    side by side images of a mobile device showing a document on a table on the left, and the results of the scanned document on the right showing details providing the what, when, and where as written in the document

    Supported devices

    GenAI APIs are available on Android devices using optimized MediaTek Dimensity, Qualcomm Snapdragon, and Google Tensor platforms through AICore. For a comprehensive list of devices that support GenAI APIs, refer to our official documentation.

    Learn more

    Start implementing GenAI APIs in your Android apps today with guidance from our official documentation and samples on GitHub: AI Catalog GenAI API Samples with Compose, ML Kit GenAI APIs Quickstart.



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  • Peacock built adaptively on Android to deliver great experiences across screens



    Posted by Sa-ryong Kang and Miguel Montemayor – Developer Relations Engineers

    Peacock is NBCUniversal’s streaming service app available in the US, offering culture-defining entertainment including live sports, exclusive original content, TV shows, and blockbuster movies. The app continues to evolve, becoming more than just a platform to watch content, but a hub of entertainment.

    Today’s users are consuming entertainment on an increasingly wider array of device sizes and types, and in particular are moving towards mobile devices. Peacock has adopted Jetpack Compose to help with its journey in adapting to more screens and meeting users where they are.

    https://www.youtube.com/watch?v=ooRcQFMYzmA

    Disclaimer: Peacock is available in the US only. This video will only be viewable to US viewers.

    Adapting to more flexible form factors

    The Peacock development team is focused on bringing the best experience to users, no matter what device they’re using or when they want to consume content. With an emerging trend from app users to watch more on mobile devices and large screens like foldables, the Peacock app needs to be able to adapt to different screen sizes. As more devices are introduced, the team needed to explore new solutions that make the most out of each unique display permutation.

    The goal was to have the Peacock app to adapt to these new displays while continually offering high-quality entertainment without interruptions, like the stream reloading or visual errors. While thinking ahead, they also wanted to prepare and build a solution that was ready for Android XR as the entertainment landscape is shifting towards including more immersive experiences.

    quote card featuring a headshot of Diego Valente, Head of Mobile, Peacock & Global Streaming, reads 'Thinking adaptively isn't just about supporting tablets or large screens - it's about future proofing your app. Investing in adaptability helps you meet user's expectations of having seamless experiencers across all their devices and sets you up for what's next.'

    Building a future-proof experience with Jetpack Compose

    In order to build a scalable solution that would help the Peacock app continue to evolve, the app was migrated to Jetpack Compose, Android’s toolkit for building scalable UI. One of the essential tools they used was the WindowSizeClass API, which helps developers create and test UI layouts for different size ranges. This API then allows the app to seamlessly switch between pre-set layouts as it reaches established viewport breakpoints for different window sizes.

    The API was used in conjunction with Kotlin Coroutines and Flows to keep the UI state responsive as the window size changed. To test their work and fine tune edge case devices, Peacock used the Android Studio emulator to simulate a wide range of Android-based devices.

    Jetpack Compose allowed the team to build adaptively, so now the Peacock app responds to a wide variety of screens while offering a seamless experience to Android users. “The app feels more native, more fluid, and more intuitive across all form factors,” said Diego Valente, Head of Mobile, Peacock and Global Streaming. “That means users can start watching on a smaller screen and continue instantly on a larger one when they unfold the device—no reloads, no friction. It just works.”

    Preparing for immersive entertainment experiences

    In building adaptive apps on Android, John Jelley, Senior Vice President, Product & UX, Peacock and Global Streaming, says Peacock has also laid the groundwork to quickly adapt to the Android XR platform: “Android XR builds on the same large screen principles, our investment here naturally extends to those emerging experiences with less developmental work.”

    The team is excited about the prospect of features unlocked by Android XR, like Multiview for sports and TV, which enables users to watch multiple games or camera angles at once. By tailoring spatial windows to the user’s environment, the app could offer new ways for users to interact with contextual metadata like sports stats or actor information—all without ever interrupting their experience.

    Build adaptive apps

    Learn how to unlock your app’s full potential on phones, tablets, foldables, and beyond.

    Explore this announcement and all Google I/O 2025 updates on io.google starting May 22.



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  • Android Developers Blog: Updates to the Android XR SDK: Introducing Developer Preview 2



    Posted by Matthew McCullough – VP of Product Management, Android Developer

    Since launching the Android XR SDK Developer Preview alongside Samsung, Qualcomm, and Unity last year, we’ve been blown away by all of the excitement we’ve been hearing from the broader Android community. Whether it’s through coding live-streams or local Google Developer Group talks, it’s been an outstanding experience participating in the community to build the future of XR together, and we’re just getting started.

    Today we’re excited to share an update to the Android XR SDK: Developer Preview 2, packed with new features and improvements to help you develop helpful and delightful immersive experiences with familiar Android APIs, tools and open standards created for XR.

    At Google I/O, we have two technical sessions related to Android XR. The first is Building differentiated apps for Android XR with 3D content, which covers many features present in Jetpack SceneCore and ARCore for Jetpack XR. The future is now, with Compose and AI on Android XR covers creating XR-differentiated UI and our vision on the intersection of XR with cutting-edge AI capabilities.

    Android XR sessions at Google I/O 2025

    Building differentiated apps for Android XR with 3D content and The future is now, with Compose and AI on Android XR

    What’s new in Developer Preview 2

    Since the release of Developer Preview 1, we’ve been focused on making the APIs easier to use and adding new immersive Android XR features. Your feedback has helped us shape the development of the tools, SDKs, and the platform itself.

    With the Jetpack XR SDK, you can now play back 180° and 360° videos, which can be stereoscopic by encoding with the MV-HEVC specification or by encoding view-frames adjacently. The MV-HEVC standard is optimized and designed for stereoscopic video, allowing your app to efficiently play back immersive videos at great quality. Apps built with Jetpack Compose for XR can use the SpatialExternalSurface composable to render media, including stereoscopic videos.

    Using Jetpack Compose for XR, you can now also define layouts that adapt to different XR display configurations. For example, use a SubspaceModifier to specify the size of a Subspace as a percentage of the device’s recommended viewing size, so a panel effortlessly fills the space it’s positioned in.

    Material Design for XR now supports more component overrides for TopAppBar, AlertDialog, and ListDetailPaneScaffold, helping your large-screen enabled apps that use Material Design effortlessly adapt to the new world of XR.

    An app adapts to XR using Material Design for XR with the new component overrides

    An app adapts to XR using Material Design for XR with the new component overrides

    In ARCore for Jetpack XR, you can now track hands after requesting the appropriate permissions. Hands are a collection of 26 posed hand joints that can be used to detect hand gestures and bring a whole new level of interaction to your Android XR apps:

    moving image demonstrates how hands bring a natural input method to your Android XR experience.

    Hands bring a natural input method to your Android XR experience.

    For more guidance on developing apps for Android XR, check out our Android XR Fundamentals codelab, the updates to our Hello Android XR sample project, and a new version of JetStream with Android XR support.

    The Android XR Emulator has also received updates to stability, support for AMD GPUs, and is now fully integrated within the Android Studio UI.

    the Android XR Emulator in Android STudio

    The Android XR Emulator is now integrated in Android Studio

    Developers using Unity have already successfully created and ported existing games and apps to Android XR. Today, you can upgrade to the Pre-Release version 2 of the Unity OpenXR: Android XR package! This update adds many performance improvements such as support for Dynamic Refresh Rate, which optimizes your app’s performance and power consumption. Shaders made with Shader Graph now support SpaceWarp, making it easier to use SpaceWarp to reduce compute load on the device. Hand meshes are now exposed with occlusion, which enables realistic hand visualization.

    Check out Unity’s improved Mixed Reality template for Android XR, which now includes support for occlusion and persistent anchors.

    We recently launched Android XR Samples for Unity, which demonstrate capabilities on the Android XR platform such as hand tracking, plane tracking, face tracking, and passthrough.

    moving image of Google’s open-source Unity samples demonstrating platform features and showing how they’re implemented

    Google’s open-source Unity samples demonstrate platform features and show how they’re implemented

    The Firebase AI Logic for Unity is now in public preview! This makes it easy for you to integrate gen AI into your apps, enabling the creation of AI-powered experiences with Gemini and Android XR. The Firebase AI Logic fully supports Gemini’s capabilities, including multimodal input and output, and bi-directional streaming for immersive conversational interfaces. Built with production readiness in mind, Firebase AI Logic is integrated with core Firebase services like App Check, Remote Config, and Cloud Storage for enhanced security, configurability, and data management. Learn more about this on the Firebase blog or go straight to the Gemini API using Vertex AI in Firebase SDK documentation to get started.

    Continuing to build the future together

    Our commitment to open standards continues with the glTF Interactivity specification, in collaboration with the Khronos Group. which will be supported in glTF models rendered by Jetpack XR later this year. Models using the glTF Interactivity specification are self-contained interactive assets that can have many pre-programmed behaviors, like rotating objects on a button press or changing the color of a material over time.

    Android XR will be available first on Samsung’s Project Moohan, launching later this year. Soon after, our partners at XREAL will release the next Android XR device. Codenamed Project Aura, it’s a portable and tethered device that gives users access to their favorite Android apps, including those that have been built for XR. It will launch as a developer edition, specifically for you to begin creating and experimenting. The best news? With the familiar tools you use to build Android apps today, you can build for these devices too.

    product image of XREAL’s Project Aura against a nebulous black background

    XREAL’s Project Aura

    The Google Play Store is also getting ready for Android XR. It will list supported 2D Android apps on the Android XR Play Store when it launches later this year. If you are working on an Android XR differentiated app, you can get it ready for the big launch and be one of the first differentiated apps on the Android XR Play Store:

    And we know many of you are excited for the future of Android XR on glasses. We are shaping the developer experience now and will share more details on how you can participate later this year.

    To get started creating and developing for Android XR, check out developer.android.com/develop/xr where you will find all of the tools, libraries, and resources you need to work with the Android XR SDK. In particular, try out our samples and codelabs.

    We welcome your feedback, suggestions, and ideas as you’re helping shape Android XR. Your passion, expertise, and bold ideas are vital as we continue to develop Android XR together. We look forward to seeing your XR-differentiated apps when Android XR devices launch later this year!

    Explore this announcement and all Google I/O 2025 updates on io.google starting May 22.



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  • What’s New in Jetpack Compose



    Posted by Nick Butcher – Product Manager

    At Google I/O 2025, we announced a host of features, performance, stability, libraries, and tools updates for Jetpack Compose, our recommended Android UI toolkit. With Compose you can build excellent apps that work across devices. Compose has matured a lot since it was first announced (at Google I/O 2019!) and we’re now seeing 60% of the top 1,000 apps in the Play Store such as MAX and Google Drive use and love it.

    New Features

    Since I/O last year, Compose Bill of Materials (BOM) version 2025.05.01 adds new features such as:

      • Autofill support that lets users automatically insert previously entered personal information into text fields.
      • Auto-sizing text to smoothly adapt text size to a parent container size.
      • Visibility tracking for when you need high-performance information on a composable’s position in its root container, screen, or window.
      • Animate bounds modifier for beautiful automatic animations of a Composable’s position and size within a LookaheadScope.
      • Accessibility checks in tests that let you build a more accessible app UI through automated a11y testing. 

    LookaheadScope {
    Box(
        Modifier
            .animateBounds(this@LookaheadScope)
            .width(if(inRow) 100.dp else 150.dp)
            .background(..)
            .border(..)
    )
}

    moving image of animate bounds modifier in action

    For more details on these features, read What’s new in the Jetpack Compose April ’25 release and check out these talks from Google I/O:

    If you’re looking to try out new Compose functionality, the alpha BOM offers new features that we’re working on including:

      • Pausable Composition (see below)
      • Updates to LazyLayout prefetch
      • Context Menus
      • New modifiers: onFirstVisible, onVisbilityChanged, contentType
      • New Lint checks for frequently changing values and elements that should be remembered in composition

    Please try out the alpha features and provide feedback to help shape the future of Compose.

    Material Expressive

    At Google I/O, we unveiled Material Expressive, Material Design’s latest evolution that helps you make your products even more engaging and easier to use. It’s a comprehensive addition of new components, styles, motion and customization options that help you to build beautiful rich UIs. The Material3 library in the latest alpha BOM contains many of the new expressive components for you to try out.

    moving image of material expressive design example

    Learn more to start building with Material Expressive.

    Adaptive layouts library

    Developing adaptive apps across form factors including phones, foldables, tablets, desktop, cars and Android XR is now easier with the latest enhancements to the Compose adaptive layouts library. The stable 1.1 release adds support for predictive back gestures for smoother transitions and pane expansion for more flexible two pane layouts on larger screens. Furthermore, the 1.2 (alpha) release adds more flexibility for how panes are displayed, adding strategies for reflowing and levitating.

    moving image of compose adaptive layouts updates in the Google Play app

    Compose Adaptive Layouts Updates in the Google Play app

    Learn more about building adaptive android apps with Compose.

    Performance

    With each release of Jetpack Compose, we continue to prioritize performance improvements. The latest stable release includes significant rewrites and improvements to multiple sub-systems including semantics, focus and text optimizations. Best of all these are available to you simply by upgrading your Compose dependency; no code changes required.

    bar chart of internal benchmarks for performance run on a Pixel 3a device from January to May 2023 measured by jank rate

    Internal benchmark, run on a Pixel 3a

    We continue to work on further performance improvements, notable changes in the latest alpha BOM include:

      • Pausable Composition allows compositions to be paused, and their work split up over several frames.
      • Background text prefetch enables text layout caches to be pre-warmed on a background thread, enabling faster text layout.
      • LazyLayout prefetch improvements enabling lazy layouts to be smarter about how much content to prefetch, taking advantage of pausable composition.

    Together these improvements eliminate nearly all jank in an internal benchmark.

    Stability

    We’ve heard from you that upgrading your Compose dependency can be challenging, encountering bugs or behaviour changes that prevent you from staying on the latest version. We’ve invested significantly in improving the stability of Compose, working closely with the many Google app teams building with Compose to detect and prevent issues before they even make it to a release.

    Google apps develop against and release with snapshot builds of Compose; as such, Compose is tested against the hundreds of thousands of Google app tests and any Compose issues are immediately actioned by our team. We have recently invested in increasing the cadence of updating these snapshots and now update them daily from Compose tip-of-tree, which means we’re receiving feedback faster, and are able to resolve issues long before they reach a public release of the library.

    Jetpack Compose also relies on @Experimental annotations to mark APIs that are subject to change. We heard your feedback that some APIs have remained experimental for a long time, reducing your confidence in the stability of Compose. We have invested in stabilizing experimental APIs to provide you a more solid API surface, and reduced the number of experimental APIs by 32% in the last year.

    We have also heard that it can be hard to debug Compose crashes when your own code does not appear in the stack trace. In the latest alpha BOM, we have added a new opt-in feature to provide more diagnostic information. Note that this does not currently work with minified builds and comes at a performance cost, so we recommend only using this feature in debug builds.

    class App : Application() {
   override fun onCreate() {
        // Enable only for debug flavor to avoid perf impact in release
        Composer.setDiagnosticStackTraceEnabled(BuildConfig.DEBUG)
   }
}

    Libraries

    We know that to build great apps, you need Compose integration in the libraries that interact with your app’s UI.

    A core library that powers any Compose app is Navigation. You told us that you often encountered limitations when managing state hoisting and directly manipulating the back stack with the current Compose Navigation solution. We went back to the drawing-board and completely reimagined how a navigation library should integrate with the Compose mental model. We’re excited to introduce Navigation 3, a new artifact designed to empower you with greater control and simplify complex navigation flows.

    We’re also investing in Compose support for CameraX and Media3, making it easier to integrate camera capture and video playback into your UI with Compose idiomatic components.

    @Composable
private fun VideoPlayer(
    player: Player?, // from media3
    modifier: Modifier = Modifier
) {
    Box(modifier) {
        PlayerSurface(player) // from media3-ui-compose
        player?.let {
            // custom play-pause button UI
            val playPauseButtonState = rememberPlayPauseButtonState(it) // from media3-ui-compose
            MyPlayPauseButton(playPauseButtonState, Modifier.align(BottomEnd).padding(16.dp))
        }
    }
}

    To learn more, see the media3 Compose documentation and the CameraX samples.

    Tools

    We continue to improve the Android Studio tools for creating Compose UIs. The latest Narwhal canary includes:

      • Resizable Previews instantly show you how your Compose UI adapts to different window sizes
      • Preview navigation improvements using clickable names and components
      • Studio Labs 🧪: Compose preview generation with Gemini quickly generate a preview
      • Studio Labs 🧪: Transform UI with Gemini change your UI with natural language, directly from preview.
      • Studio Labs 🧪: Image attachment in Gemini generate Compose code from images.

    For more information read What’s new in Android development tools.

    moving image of resizable preview in Jetpack Compose

    Resizable Preview

    New Compose Lint checks

    The Compose alpha BOM introduces two new annotations and associated lint checks to help you to write correct and performant Compose code. The @FrequentlyChangingValue annotation and FrequentlyChangedStateReadInComposition lint check warns in situations where function calls or property reads in composition might cause frequent recompositions. For example, frequent recompositions might happen when reading scroll position values or animating values. The @RememberInComposition annotation and RememberInCompositionDetector lint check warns in situations where constructors, functions, and property getters are called directly inside composition (e.g. the TextFieldState constructor) without being remembered.

    Happy Composing

    We continue to invest in providing the features, performance, stability, libraries and tools that you need to build excellent apps. We value your input so please share feedback on our latest updates or what you’d like to see next.

    Explore this announcement and all Google I/O 2025 updates on io.google starting May 22.



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