# Android Developers - Medium Articles on modern tools and resources to help you build experiences that people love, faster and easier, across every Android device. - Medium This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## Android development updates include Android XR SDK Developer Preview 3 and new tools for AI glasses DevFeed: [Android development updates include Android XR SDK Developer Preview 3 and new tools for AI glasses]() Original publisher: [Read original article]() Author: Daniel Galpin Published: 2025-12-19T23:33:51Z Content type: article Language: en Sources: [Android Developers - Medium]() Topics: [Android XR](), [android-development](), [Android Studio](), [Jetpack](), [Compose](), [OpenXR](), [Godot](), [Unreal Engine]() Tags: [android-development](), [android-studio](), [android-xr](), [featured](), [jetpack](), [jetpack-compose](), [now-in-android](), [openxr](), [release](), [unreal](), [unreal-engine]() ### AI overview This edition of Now in Android reviews Android development updates, with emphasis on Android XR SDK Developer Preview 3 and tools for AI glasses. It covers Jetpack libraries, ARCore geospatial capabilities, adaptive field-of-view APIs, Android Studio emulator support, and OpenXR integrations for Unreal Engine and Godot. ### Source excerpt Android XR, Android Studio Otter 2 feature drop; Android 16 QPR2, compose updates, Jetpack Navigation 3, performance and much, much, much more. Welcome to Now in Android, your ongoing guide to what's new and notable in the world of Android development. You can catch a short subset of what's in this gigantified update on YouTube, but read on for the full story. https://medium.com/media/406ea21381b605792c1cb5f40715bc89/href Start building for glasses, new devices for Android XR and more in The Android Show | XR Edition πŸ‘“ The Android Show | XR Edition introduced updates to the Android XR platform, focusing on new devices and developer tools. The platform is expanding to include lightweight AI and Display AI glasses from Samsung, Gentle Monster, and Warby Parker, integrating Gemini for features like live translation and visual search. Uber is exploring AI Glasses for contextual directions. Wired XR glasses, such as XREAL's Project Aura, are scheduled for release next year. Android XR SDK Developer Preview 3 offers increased stability for headset APIs and opens development for AI Glasses. This includes new libraries like Jetpack Compose Glimmer for transparent display UI and Jetpack Projected for extending your mobile apps to glasses. ARCore for Jetpack XR gains Geospatial capabilities, and new APIs enable detection of device field-of-view for adaptive UIs. The platform, built on OpenXR, supports Unreal Engine development with a Google vendor plugin for hand tracking coming next year, and Godot Engine now includes Android XR support via its OpenXR vendor plugin v4.2.2 stable. Start building for glasses, new devices for Android XR and more in The Android Show | XR Edition Check out #TheAndroidShow in 60 seconds for a quick video overview of what we covered. Build for AI Glasses with the Android XR SDK Developer Preview 3 and unlock new features for immersive experiences πŸš€ Android XR SDK Developer Preview 3 is now available, enabling you to build augmented experiences for ## Now in Android #121 DevFeed: [Now in Android #121]() Original publisher: [Read original article]() Author: Daniel Galpin Published: 2025-10-20T22:09:39Z Content type: article Language: en Sources: [Android Developers - Medium]() Topics: [Android](), [now-in-android](), [android-development](), [Android Studio](), [Jetpack Compose](), [media3](), [migration](), [Accessibility](), [Bluetooth LE](), [Dark Mode](), [iOS](), [pdf]() Tags: [accessibility](), [android](), [android-16](), [android-studio](), [bluetooth-le](), [featured](), [ios](), [jetpack-compose](), [media](), [migration](), [now-in-android](), [pdf]() ### AI overview This edition of Now in Android covers Android 16 QPR2 Beta 1, Android Studio Narwhal's feature drop, Jetpack Compose 1.9, Media3 1.8, and related Android development updates. It highlights new platform APIs and changes involving accessibility, data migration between Android and iOS, PDF editing, media, Bluetooth LE Audio, and connectivity. ### Source excerpt Compose 1.9, Media 3 1.8, QPR2 Beta 1, Narwhal Feature Drop, and more! Welcome to Now in Android, your ongoing guide to what's new and notable in the world of Android development. Read on for coverage of Android 16 QPR2 beta 1, the Android Studio Narwhal feature drop, Jetpack Compose 1.9, Media 3 1.8, Shape Morphing and Autofill in Compose, and much more. You can watch a video summary: https://medium.com/media/87a24ed0bca13b2d58bd3e59517b4273/href And we also have a podcast: https://medium.com/media/ef0552e532d340d1dd8ced3c6b6d85c5/href But this post has the most in-depth information, so read on! Android 16 QPR2 Beta 1 is here ✨ The first beta of Android 16 QPR2 is now available, the inaugural Android release with an Android minor SDK version. Minor SDK versions can include new APIs that extend platform features but cannot introduce targetSdkVersion gated behavior changes, minimizing the amount you need to test your apps against it. You can call new APIs by checking SDK_INT_FULL against the VERSION_CODES_FULL enumeration: if (Build.VERSION.SDK_INT_FULL >= Build.VERSION_CODES_FULL.BAKLAVA_1) { // Call new APIs from the Android 16 QPR2 release } VERSION_CODES_FULL cannot be used in uses-sdk manifest attributes. Here are some key updates from QPR2 Beta 1. UI, System Experience, and Accessibility: An expanded dark theme option intelligently inverts light apps for users preferring a dark appearance. Auto-themed app icons can be generated by the system if your app doesn't provide a monochrome layer. Interactive chooser sessions keep your app UI active while the sharesheet is open, using ChooserManager and ChooserSession. A new Data Transfer API enables more reliable and secure data migration between Android and iOS, requiring updates to your app's data extraction rules XML and BackupAgent implementation. The android.graphics.pdf package has expanded to support annotating and editing PDF documents via PdfRenderer.Page. ViewConfiguration values are now tailored to individua ## Now in Android #120 DevFeed: [Now in Android #120]() Original publisher: [Read original article]() Author: Daniel Galpin Published: 2025-08-06T21:01:41Z Content type: article Language: en Sources: [Android Developers - Medium]() Topics: [Android](), [Beta channel](), [Android Studio](), [Artificial Intelligence](), [Google Play](), [CI/CD](), [Image]() Tags: [agentic-ai](), [android](), [android-development](), [android-studio](), [androidcanary](), [canary-release](), [continuous-integration](), [developer-preview](), [featured](), [google-play](), [now-in-android](), [pixel]() ### AI overview Now in Android #120 is a roundup of Android development updates covering the new Canary release channel, Agent Mode in Android Studio, Google Play changes including 16 KB Page Size requirements, Play Games updates, Android 16 devices, and Compose tips. ### Source excerpt Canary Channel, Agentic AI in Android Studio, 16 KB Pages, Policy Changes, Compose Tips, Play Games Welcome to Now in Android, your ongoing guide to what's new and notable in the world of Android development. This edition features the Android platform Canary Channel, the first release of Agentic AI in Android Studio, Play updates including 16 KB Page Size requirements and other policy changes, new capabilities around one-time purchases, Play Games Services v2, and Google Play Games on PC, I/O recaps on AI and dev productivity, next gen Samsung devices running Android 16, Compose tips, and more. https://medium.com/media/2034f6e8beea3e321d4483d4ee77ebdf/hrefhttps://medium.com/media/0247cb404c27e0b8725bc258c35923bc/href Most of the content of this post is available in the form of a video or podcast, so feel free to watch or listen rather than read on. (Or do all three to help you remember! There won't be a quiz.) Evolving Android's early-access programs: Introducing the Canary channel 🐦 Android has introduced a new Canary release channel for its early-access programs, replacing the previous developer preview model. This channel provides earlier and more consistent access to in-development platform features throughout the year. The new Canary channel offers continuous, rolling over-the-air (OTA) updates for supported Pixel devices, addressing previous limitations where previews required manual flashing and the preview program ended once a platform version reached Beta, requiring manual flashing to enter it again for the next cycle. You can use the Canary channel to: Access new features and potential behavior changes in their earliest stages. Integrate builds into your Continuous Integration (CI) systems to identify app compatibility issues early. Download Canary SDKs through the SDK Manager and access builds via the Android Studio Canary channel for development and testing. The Canary channel operates in parallel with the existing Beta program. Canary builds are bleedin ## Now in Android #119: Android 16, Desktop Experiences, Adaptive Apps, and More DevFeed: [Now in Android #119: Android 16, Desktop Experiences, Adaptive Apps, and More]() Original publisher: [Read original article]() Author: Meghan Mehta Published: 2025-07-09T17:02:38Z Content type: article Language: en Sources: [Android Developers - Medium]() Topics: [Android](), [Development](), [Large Screen](), [Testing](), [Jetpack Compose](), [navigation]() Tags: [adaptive](), [android](), [android-16](), [android-development](), [compose](), [featured](), [google](), [jetpack](), [now-in-android](), [release](), [testing]() ### AI overview Now in Android #119 covers the release of Android 16, including camera and media API updates, edge-to-edge requirements, adaptive behavior, predictive back navigation, progress notifications, and new graphics capabilities. It also summarizes Google I/O 2025 announcements about desktop experiences, adaptive apps, performance optimization, testing, CameraX, and Media3Effects. ### Source excerpt Android 16, Desktop Experiences, Adaptive Apps, Testing Videos, AndroidX and more! Welcome to Now in Android, your ongoing guide to what's new and notable in the world of Android development. In this edition we will cover Android 16, Desktop Experiences, Adaptive Apps, Testing Videos, AndroidX and more! https://medium.com/media/e5e1b0709e27441479904677742b5c3e/hrefhttps://medium.com/media/91590868757d125ca9ea41b7f1260065/href Most of the content of this post is available in the form of a video or podcast, so feel free to watch or listen rather than read on. (Or do all three to help you remember! There won't be a quiz.) Android 16 is here πŸ€– Android 16 is released and available on supported Pixel devices, with new devices to follow. The source code is available at the Android Open Source Project. Key updates include: Enhanced camera and media APIs for pro users, with night mode scene detection, hybrid auto exposure and precise color temperature adjustments. Improved UltraHDR image support with HEIC encoding and an embedded photo picker. Apps targeting Android 16 can no longer opt-out of going edge-to-edge Changes to how the system manages orientation, resizability, and aspect ratio restrictions. System animations for back-to-home, cross-task, and cross-activity by default. In addition, this release extends predictive back navigation to three-button navigation, meaning that users long-pressing the back button will see a glimpse of the previous screen before navigating back. Progress style notifications which lets you create progress-centric notifications that can denote states and milestones in a user journey using points and segments. RuntimeColorFilter and RuntimeXfermode, allowing you to author complex effects like Threshold, Sepia, and Hue Saturation in AGSL and apply them to draw calls. Android 16 is here Top 3 updates for building excellent, adaptive apps at Google I/O '25 πŸ€– At Google I/O 2025, several advancements were announced for Android, including the rollou ## Now in Android #118 -- Google I/O 2025 Part II DevFeed: [Now in Android #118 -- Google I/O 2025 Part II]() Original publisher: [Read original article]() Author: Daniel Galpin Published: 2025-06-18T17:01:42Z Content type: article Language: en Sources: [Android Developers - Medium]() Topics: [Android](), [Jetpack Compose](), [Google](), [cameraX](), [media3](), [Accessibility](), [Kotlin Multiplatform](), [Android Studio]() Tags: [accessibility](), [android](), [android-studio](), [camerax](), [compose](), [featured](), [google](), [google-i-o](), [google-io-2025](), [jetpack-compose](), [kotlin-multiplatform](), [media3](), [now-in-android]() ### AI overview This article covers the second part of Google I/O 2025 updates for Android development. It highlights new Jetpack Compose capabilities, Compose-first Navigation 3, CameraX and Media3 integration, accessibility testing, Kotlin Multiplatform, Android Studio improvements, and related Android ecosystem updates. ### Source excerpt Now in Android #118 -- Google I/O 2025 Part IICompose, Camera and Media, Accessibility ,KMP, Tools, Maps, AndroidX, Google Home, integrating the web, Google Play, and more Welcome to part two of a special Google I/O 2025 edition of Now in Android, your ongoing guide to what's new and notable in Android development. This second edition covers the latest from Jetpack Compose, Camera and Media, Accessibility ,Kotlin Multiplatform, Android development tools, Google Maps, AndroidX, Google Home with Gemini, integrating web functionality, Google Play, and more. Part one included coverage of Material Expressive, watches, cars, tablets, laptops, connected displays, the latest in adaptive app development, XR development, taking advantage of on-device and cloud based AI, and Android 16. https://medium.com/media/ac4b380d9ad7f761525349fa12cc14a0/href Now in Android: 118 - What's new in Android development at Google I/O 2025 (part 2) Most of the content of this post is available in the form of a video or podcast, so feel free to watch or listen rather than read on. (Or do all three to help you remember! There won't be a quiz.) Jetpack Compose πŸ’» Jetpack Compose introduced new features, including autofill support, auto-sizing text, visibility tracking, the animate bounds modifier, and accessibility checks in tests, and that's just the beginning of what's new: animateBounds provides automatic animations of a Composable's position and size within a LookaheadScope, while visibility tracking is used when you need high-performance information on a composable's position in its root container, screen, or window. For more on autofill, autosize, and the new state based TextField, check out the "Mastering text input in Compose" talk. https://medium.com/media/9d6173df81f8e842f25b25f0a406c606/href Navigation 3 is a brand new, Compose-first navigation library, now in alpha that's designed to give you greater control while simplifying building complex navigation flows. Announcing Jetpack Navigati ## A product manager's guide to adapting Android apps across devices DevFeed: [A product manager's guide to adapting Android apps across devices]() Original publisher: [Read original article]() Author: Android Developers Published: 2025-06-10T18:06:14Z Content type: article Language: en Sources: [Android Developers - Medium]() Topics: [Android](), [Large Screen](), [Mobile](), [Development](), [App](), [API](), [Google](), [SDKs]() Tags: [adaptive](), [android](), [android-16](), [android-apps](), [api](), [developer](), [developer-preview](), [featured](), [google-io-2025](), [large-screen](), [large-screen-display](), [layout](), [mobile](), [mobile-apps](), [platform](), [sdk](), [ui]() ### AI overview This guide explains why Android developers should adapt apps for phones, foldables, tablets, Chromebooks, cars, Wear, and XR. It discusses Android 16 changes for apps targeting SDK 36, including changes to orientation and resizability restrictions on large-screen devices, and describes the user-experience, development-efficiency, and market-reach benefits of adaptive apps. ### Source excerpt Posted by Fahd Imtiaz, Product Manager, Android Developer Experience This article is also shared on the Android Developers Blog Today, Android is launching a few updates across the platform! This includes the start of Android 16's rollout, with details for both developers and users, a Developer Preview for enhanced Android desktop experiences with connected displays, and updates for Android users across Google apps and more, plus the June Pixel Drop. We're also recapping all the Google I/O updates for Android developers focused on building excellent, adaptive Android apps. With new form factors emerging continually, the Android ecosystem is more dynamic than ever. From phones and foldables to tablets, Chromebooks, TVs, cars, Wear and XR, Android users expect their apps to run seamlessly across an increasingly diverse range of form factors. Yet, many Android apps fall short of these expectations as they are built with UI constraints such as being locked to a single orientation or restricted in resizability. With this in mind, Android 16 introduced API changes for apps targeting SDK level 36 to ignore orientation and resizability restrictions starting with large screen devices, shifting toward a unified model where adaptive apps are the norm. This is the moment to move ahead. Adaptive apps aren't just the future of Android, they're the expectation for your app to stand out across Android form factors. Why you should prioritize adaptive nowSource: internal Google data Prioritizing optimizations to make your app adaptive isn't just about keeping up with the orientation and resizability API changes in Android 16 for apps targeting SDK 36. Adaptive apps unlock tangible benefits across user experience, development efficiency, and market reach. Mobile apps can now reach users on over 500 million active large screen devices: Mobile apps run on foldables, tablets, Chromebooks, and even compatible cars, with minimal changes. Android 16 will introduce significant advancements i ## Now in Android #117 -- Google I/O 2025 Part I DevFeed: [Now in Android #117 -- Google I/O 2025 Part I]() Original publisher: [Read original article]() Author: Daniel Galpin Published: 2025-06-05T17:28:56Z Content type: article Language: en Sources: [Android Developers - Medium]() Topics: [Android](), [Material Design](), [Development](), [Google](), [Artificial Intelligence](), [Android XR](), [Large Screen](), [User experience (UX)]() Tags: [2025](), [adaptive](), [ai](), [android](), [android-16](), [android-xr](), [design-patterns](), [development](), [featured](), [gemini](), [google](), [google-i-o](), [google-io-2025](), [material-design](), [now-in-android](), [ux]() ### AI overview This first part of a special Google I/O 2025 edition of Now in Android surveys updates across Material Design, Android form factors, adaptive app development, Android XR, on-device and cloud-based AI, and Android 16. It highlights Material 3 Expressive, including new motion physics, typography, shapes, colors, and component configuration capabilities. ### Source excerpt Now in Android #117 -- Google I/O 2025 Part IDesign, Watches, Cars, Tablets, Adaptive Apps, Android XR, Gemini, and Android 16 Welcome to part one of a special two-part Google I/O 2025 edition of Now in Android. This first post will cover a bunch of changes related to the latest evolution of Material Design, watches, cars, tablets, laptops, and connected displays, the latest in adaptive app development, XR development, how to take advantage of on-device and cloud based AI, and Android 16. https://medium.com/media/f4779f9096112bf2cfff21aec7eeb199/hrefhttps://medium.com/media/d23b17afda66e01541bb4c84ecea4974/href Most of the content of this post is available in the form of a video or podcast, so feel free to watch or listen rather than read on. (Or do all three to help you remember! There won't be a quiz.) The Android Show: I/O Edition -- what Android devs need to know! πŸ€– We began the I/O season with a special edition of The Android Show, where we introduced the latest evolution of Material Design, Material 3 Expressive. https://medium.com/media/815112dc9a5b3a849cced5343837f4e6/href The Android Show: I/O Edition - what Android devs need to know! https://medium.com/media/906cc031e2cbb814b2a4964db156a2cc/href Material 3 Expressive adds a new motion physics system, new type styles for variable and static fonts, an expanded shape library with morphing animations, and an expanded range of colors. Fifteen new or updated components now feature more configuration capabilities, shape options, emphasized text, and other expressive updates. The Material team has a post where you can read all about it, including design tactics. M3 Expressive: Engaging UX Design At I/O Build next-level UX with Material 3 Expressive covered how to use the new expressive design patterns; breaking down the research, explaining new guidelines, and including new design files + code. https://medium.com/media/4ce31edc8b396f71acc6192d1ac6160f/href The first beta of the Q3 Android 16 update contains much of ## Now in Android #116 DevFeed: [Now in Android #116]() Original publisher: [Read original article]() Author: Meghan Mehta Published: 2025-05-09T15:58:03Z Content type: article Language: en Sources: [Android Developers - Medium]() Topics: [now-in-android](), [Compose](), [android-development](), [Jetpack](), [Google](), [Google AI]() Tags: [android](), [android-16](), [bug-fixes](), [compose](), [featured](), [google](), [google-ai](), [google-io-2025](), [google-play](), [jetpack](), [jetpack-compose](), [now-in-android](), [release](), [upgrade]() ### AI overview Now in Android #116 covers the Google I/O program, Jetpack Compose 1.8, the redesigned Play Console app dashboard, new Android Vitals metrics, the Testing at Scale series, Android 16 Beta 4, and recent AndroidX updates. ### Source excerpt Google IO program lineup, Jetpack Compose 1.8, Play Console insights Android Vitals Metrics, Testing at Scale blog series and AndroidX! Welcome to Now in Android, your ongoing guide to what's new and notable in the world of Android development. In this edition, we'll cover the Google IO program lineup, what's new in Jetpack Compose 1.8, the redesigned Play Console app dashboard, new Android Vitals Metrics, the launch of the Testing at Scale blog series, and the latest in AndroidX. https://medium.com/media/f791874912c70580592d3dc0ac12e0fa/hrefhttps://medium.com/media/514683104227eecfef6dcedea0d6ddb4/href Most of the content of this post is available in the form of a video or podcast, so feel free to watch or listen rather than read on. (Or do all three to help you remember! There won't be a quiz.) Articles πŸ“šGet ready for Google I/O: Program lineup revealed πŸ—“ The Google I/O agenda is now available, and you can register to explore sessions on AI, Android, Web, and Cloud, taking place May 20-21. The Google Keynote will be on May 20th at 10:00 AM PT, with the Developer Keynote at 1:30 PM PT. You can join online for livestreams May 20-21, with on-demand sessions and codelabs on May 22. Sessions will cover AI advancements using Gemini models, building apps for multiple devices using Google AI, and new features for web development. Get ready for Google I/O: Program lineup revealed What's new in the Jetpack Compose April '25 release πŸš€ Jetpack Compose 1.8 is out with new features, API updates, and bug fixes. You can upgrade your Compose BOM version to 2025.04.01 to use the new release. Here are some of the key updates: You can now integrate Autofill functionality into your Compose applications. The new autoSize parameter lets the text size adapt to the container size The onLayoutRectChanged modifier solves many use cases that the existing onGloballyPositioned modifier does; however, it does so with much less overhead. LookaheadScope is stable and includes numerous performanc ## Android 16 Beta 3 and Gemini in Android Studio Updates DevFeed: [Android 16 Beta 3 and Gemini in Android Studio Updates]() Original publisher: [Read original article]() Author: Daniel Galpin Published: 2025-04-23T21:39:22Z Content type: news Language: en Sources: [Android Developers - Medium]() Topics: [Android](), [Android Studio](), [android-development](), [Artificial Intelligence]() Tags: [ai](), [android](), [android-16](), [android-studio](), [android-xr](), [featured](), [game-development](), [google-gemini]() ### AI overview This Now in Android update covers Android 16 Beta 3 and Gemini features in Android Studio. Android 16 Beta 3 reaches Platform Stability, locks the API surface and app-facing behaviors, and allows Android 16-targeted apps to be submitted to the Play Store. Gemini Code Assist for businesses adds governance, security, and repository-connected assistance, while Gemini in Android Studio supports image attachments in prompts. ### Source excerpt Android 16 Beta 3, Gemini in Studio for Business and Multimodal, Widgets, GDC, safety and security, Android XR, Media, Camera Welcome to Now in Android, your ongoing guide to what's new and notable in the world of Android development. In this episode we're covering the third beta of Android 16, Gemini in Android Studio for Business and Gemini Multimodal, Widgets, GDC announcements, safety and security updates on Play, Android XR, Media, Camera, and so, so much more. https://medium.com/media/efa5d35e15afc0461acc8ea49689529a/hrefhttps://medium.com/media/45fefbec951133090403383e9cce63e4/href Most of the content of this post is available in the form of a video or podcast, so feel free to watch or listen rather than read on. (Or do all three to help you remember! There won't be a quiz.) The Third Beta of Android 16 πŸ€– Android 16 has reached Platform Stability with Beta 3. The API surface is locked, app-facing behaviors are final, and you can now push Android 16-targeted apps to the Play Store. The Android 16 beta now supports Auracast broadcast audio with compatible LE Audio hearing aids on Pixel 9 devices, It introduces outline text, replacing high contrast text, which draws a larger contrasting area around text to greatly improve legibility for users with low vision, and adds the ability to test the Local Network Protection feature, which gives users more control over which apps can access devices on their local network. Make sure to test your apps for compatibility now, as the release is coming to non-beta users soon with changes to JobScheduler, broadcasts, ART, Intents, accessibility, Bluetooth, and more. The Third Beta of Android 16 Gemini in Android Studio for businesses πŸ€– Android Studio now has Gemini in Android Studio for businesses through Gemini Code Assist to meet the privacy, security, and management needs of organizations. With Gemini Code Assist, your code remains secure with a data governance policy, you retain control and ownership of your data and IP, an ## How Dropbox leverages testing to maintain high level of trust at scale DevFeed: [How Dropbox leverages testing to maintain high level of trust at scale]() Original publisher: [Read original article]() Author: Jose AlcΓ©rreca Published: 2025-04-23T17:26:09Z Content type: article Language: en Sources: [Android Developers - Medium]() Topics: [dropbox](), [Testing](), [Android](), [test](), [engineering-culture]() Tags: [android](), [automated](), [case-study](), [dropbox](), [e2e-testing](), [engineering](), [engineering-culture](), [featured](), [quality](), [testing]() ### AI overview This article describes how Dropbox evolved its Android testing strategies to maintain user trust and timely feedback at scale. It discusses the testing pyramid, automated and end-to-end testing, Android integration, and the costs of an early monolithic app structure. ### Source excerpt This is part 2 of the Testing at scale series of articles where we asked industry experts to share their testing strategies. In this article, Ryan Harter, Staff Engineer at Dropbox, shares how the shape of Dropbox's testing pyramid changed over time, and what tools they use to get timely feedback. With more than one billion downloads, the Dropbox app for Android has to maintain a high quality bar for a diverse set of use cases and users. With less than 30 Android engineers, manual testing and #yolo isn't enough to maintain confidence in our codebase, so we employ a variety of different testing strategies to ensure we can continually serve our users needs. Since Dropbox makes it easy to access your files across all of your devices, the Android app has to support viewing as many of those files as possible, including media files, documents, photos, and all of the variations within these categories. Additionally, features like Camera Uploads, which automatically backs up all of your most important photos, require deep integration with the Android OS in ways that have changed significantly over the years and across Android versions. All of this needs to continually work for our users, without them having to worry about the complexity, because the last thing anyone wants is to worry that they might lose their data. While the size and distribution of the Android team at Dropbox has changed throughout the years, it's imperative that we're able to consistently build and refine features within the app while maintaining the level of trust from our users that we've become known for. To help underscore how Dropbox has been able to foster that trust, I'd like to share some ways that our testing strategies have changed over the years. How it started While automated testing has always been an important part of engineering culture at Dropbox, it hasn't always been easy on Android. Years ago Dropbox invested in testing infrastructure that leaned heavily on End-to-End (E2E) testing. B