Android Developers Backstage

Chet, Phil, and Tor. And a lot of totally professional sound baffles This time, Tor and Chet get all musical with Phil Burk from the ...

Artur, Chet, Mady, Romain and Tor In this episode, Romain, Chet and Tor talked with Mady Melor and Artur Tsurkan from the System UI ...

Chet, Glen, Rod, and Tor. Il n'y a pas de Romain. In this episode, Chet and Tor talk with Rod Graves and Glen Murphy from the Android UX team. We talked about various UX changes in Android over the years, as well as UI design in general. For example, Glen compared UX design to API design; trying to provide an interface for the users of your product that helps them build a mental model to better understand how everything fits and works together. Favorite acronym: "WTFY" Subscribe to the or download the directly. Links: Rod: Glen: Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Bryan Gordon.

Chet, Tor, Romain, Cyril and Zarah, laughing at something stupid funny that Chet said. Amongst the many talks and announcements at the Android Dev Summit 2019 was a hidden gem: the first ever live episode of this podcast! Chet, Romain and Tor took this opportunity to have a chat with Zarah Dominguez and Cyril Mottier. Both Zarah and Cyril work as Android app developers and are known for their presentations at various Android conferences. We talked about modernizing large codebases, Kotlin, data binding, themes & styles, and many other things. Let's not spoil the podcast here. Subscribe to the or download the directly. Links: Zarah: () Cyril: () Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Bryan Gordon.

Allen, Chris, Adam, part of Tor, Dan (taking the photo), and Chet. All of them are also in the monitor, but backwards. Oh, and note the gym sock being used to dampen noise on the mic. High tech stuff, ADB. In this episode, Chet and Tor talk with Chris Banes, Adam Cohen, Dan Sandler, and Allen Huang about Gesture Navigation. Gesture Nav is an important UI behavior change in the Android 10 release that developers should handle and test. Chris has written Gesture Nav articles recently. This conversation goes further into the background and reasons for the change, as well as techniques for dealing with it. Note: The audio in this episode, is not up to the usual quality bar. We had the choice between recording the conversation with a non-ideal setup or not doing it at all. We chose content over quality. Subscribe to the or download the directly. Links: Chris: Dan: Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Bryan Gordon.

Tor, Jerome, Chris and Xavier in the recording studio. In this episode, Tor chats with Jerome Dochez, Chris Warrington and Xavier Ducrohet from the Android Studio build system team. We discuss a lot of topics -- the new speed attribution feature in 4.0, the effort to create new APIs for plugin authors, and a lot more. Subscribe to the or download the directly. Jerome: Xav: Tor: Chet: Romain: Thanks to continued tolerance and support by our audio engineer, Bryan Gordon.

We forgot to take a picture of ourselves when we recorded this. Please use your imagination. In this episode, Chet and Florina Muntenescu (from the Android Developer Relations team) talk with Dom Elliott from the Google Play team about Android App Bundles and other Google Play features. App bundles are the new packaging format for Android apps. They allow you to upload a single version of your app, then Google Play can distribute optimized versions of that app to users, depending on device-specific capabilities, like the selected locale(s) on the device. We also talked about other recent Google Play features (related to bundles and not), such as on-demand delivery and in-app updates. Subscribe to the or download the directly. Links: (Android Dev Summit 2019) Florina: Dom: Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Bryan Gordon.

Michael, Chet and Romain in the cozy London recording studio. In this episode, Chet and Romain travel all the way to London to have a chat with Michael Wright. This is not Michael's first time on the podcast and one again the discussion is about displays, input devices and haptics. If you want to learn more about high refresh rate displays (90/120 Hz), HDR, audio-coupled haptics, how gamepads are supported and, curiously, about the Android API council, you found the right episode! Subscribe to the or download the directly. Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Bryan Gordon.

Tor, Nicolas, John, Romain and Chet in the Android Studio In this episode, Tor, Romain and Chet chit chat with Nicolas Roard and John Hoford from the Android Studio team about Motion Layout -- and ConstraintLayout and visual editing in the IDE. In the recording session they also promised to release ConstraintLayout 2.0 beta 4 before the podcast was released. And they achieved that: . Subscribe to the or download the directly. Links: Constraintlayout codelab: MotionLayout codelab: MotionLayout workshop with John and Nicolas from DroidconSF: ConstraintLayout reference page: MotionLayout reference page: MotionLayout page: MotionLayout examples: ConstraintLayout and MotionLayout github samples: Medium article on MotionLayout: Nicolas: John: Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Bryan Gordon.

Adam, Romain, Tor, and Chet, on location in the fancy and totally upscale ADB recording studio In this episode, Tor, Romain, and Chet talk with Adam Powell from the UI Toolkit team about Jetpack Compose. The conversation meandered into declarative programming, reacting to state changes, data flowing through an application, and Kotlin domain-specific languages. Subscribe to the or download the directly. Links: Adam: Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Bryan Gordon.

Mike, Romain, Yigit, and Chet In this episode, Chet and Romain talk with Yigit Boyar, from the Jetpack team, and Mike Nakhimovich from Dropbox. Mike and Yigit have been working on an Open Source library called Store. Store helps with the fetching, caching, storing and sharing of data in your application. Both Yigit and Mike used this opportunity to teach Chet and Romain about the repository pattern, how Store works, what makes building a library like Store challenging and much more. Subscribe to the or download the directly. Links: Mike: Yigit: Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Bryan Gordon.

Kweku, Makoto, Amith, Chet, Romain, and Tor In this episode, Chet talked with Amith Yamasani, Makoto Onuki, and Kweku Adams from the framework team about power management. We waxed poetic about the heuristics the system uses to kill tasks, doze mode and how the system tries to save battery, TrimMemory requests, JobScheduler (the underlying platform facility used by WorkManager), AppStandby buckets, and more. Favorite word: OOMAdjust (Out of Memory Adjustment, but I far prefer the abbreviation) Subscribe to the or download the directly. Links: (presentation at ADS 2018) Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Bryan Gordon.

Rahul (Work), Sumir (Manager), and Chet In this episode, Chet talks with Sumir Kataria and Rahul Ravikumar from the Android Toolkit team about Work Manager! Tune in to learn about work manager, an AndroidX library for deferrable background work, and recent changes such as on demand initialization, new lint checks, and more! Subscribe to the or download the directly. Relevant Talks: , from the 2018 Android Dev Summit , from the 2019 Android Dev Summit Releases & Bugs: Link for filing issues: Sumir: Rahul: Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Bryan Gordon.

Tor, Don, Chet, and Phil, on a video conference on Tor's machine. VCs are critical to mitigating (but not actually solving) latency issues with remote podcasts. In this first ever full-remote episode, Tor and Chet discuss audio programming with Don Turner from the Android DevRel team, and Phil Burk from the Android Audio Framework team. They chat about , low-latency audio, audio performance in general, etc. And because Don and Phil know everything about audio, more time was spent before the recording discussing how to properly record the episode than was spent actually recording the episode. Subscribe to the or download the directly. If you enjoyed this episode you might also be interested in , about MIDI audio with Phil Burk. Phil: Don: Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Tor, Chet, and Romain, remembering the way things used to be, back when there was a recording studio instead of closets at home. In this episode, Romain, Chet and Tor chat with zero guests about the current work-from-home reality, and about adjustments we've all made as we change the way we work. Subscribe to the or download the directly. Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Chet, Qasid, Romain, Sally, Tor, and a very mysterious guest in a very dark room in the lower-right. In this episode, Romain, Chet and Tor talked (remotely!) with Sally Yuen and Qasid Sadiq from the Accessibility team. We discussed the kinds of tools and facilities that their team provides, and how developers can (and should!) make their applications more accessible. We talked about Accessibility Services, Talkback, Accessibility Scanner, organizational complexities of accessibility efforts, and more. Pro tip: Avoid creating custom widgets by using the built-in widgets in the platform to inherit accessibility functionality for free. Subscribe to the or download the directly. Links : Guide with videos and links to more resources. Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Chet, Romain, Jorim, Adrian and Taran. Oh and Tor hiding the upper right. In this episode, Tor, Chet and Romain are joined by Jorim, Adrian and Taran from the Window Manager team. We discussed newly announced capabilities of the IME (Input Method Editor) in Android 11. These new APIs allow applications to react in real-time to IME animations and thus provide a more polished and seamless user experience. It also happens to be the answer to one of your most requested features: knowing when the on-screen keyboard is showing. Subscribe to the or download the directly. Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Romain, Chet, Alan, Nick, and a little tiny Tor in the upper-right corner In this episode, Romain, Chet and Tor talked with Nick Anthony and Alan Viverette from the AndroidX team about... AndroidX. And Jetpack. And androidx. (Spoiler alert: androidx is the set of libraries. Jetpack is that... plus opinionated guidance. AndroidX is the name of the team that ships this stuff). We also talked about the release cadence (currently every two weeks, up from every-several-months a couple of years ago), the standards for release naming/versioning, API standards, and everything else in the world of AndroidX infrastructure and release. Subscribe to the or download the directly. Links Alan: Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Artur, Chet, Mady, Romain and Tor In this episode, Romain, Chet and Tor talked with Mady Melor and Artur Tsurkan from the System UI team about... Bubbles! Bubbles let users easily multi-task from anywhere on their device, and facilitates real-time communication using a chat application. Tune in to learn more about this new API in Android 11! Subscribe to the or download the directly. Links Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Romain, Tor's large head and bad framing, Chet's little tiny picture top-right, Julia, and Stefan It's all about people! In this episode, Tor, Chet and Romain are joined by Julia Reynolds and Stefan Franks from the System UI team to have a discussion about conversations. We also converse about things unrelated to conversations. Starting with Android 11, conversation notifications now appear in a dedicated space at the top of the notifications shade. These notifications come with specific actions like opening a or setting a reminder. Tune in to learn more about this new people-forward design. Subscribe to the or download the directly. Links Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Hoi and Matej in the top row, Chet and Tor below In this episode, Chet and Tor talk with Hoi Lam and Matej Pfajfar about machine learning on Android. Tune in to learn about ML Kit, TensorFlow Lite, transfer learning, federated learning, ML model binding, the Android Neural Networks API, and more! Subscribe to the or download the directly. Links ML Kit: TensorFlow Lite Model Maker: Android Studio 4.1 with ML Binding - People + AI Guidebook, suitable for SWE, Designers and PMs Material Design Showcase Sample Hoi: Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Tor, Romain, Sara, Philip, and a little tiny Chet top-right In this episode, Tor, Chet, and Romain talk with Sara N-Marandi and Philip Moltmann from the Android framework team about some of the new permissions changes in Android 11. We talk about why these changes were made, how to use them correctly in your code, and how things actually work on the inside. Subscribe to the or download the directly. Links Developer Guide: Video: Video: Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Mads, Chet and Tor In this episode, Chet and Tor talk with Mads Ager from the Android Studio compilers team. We cover a number of subjects, from r8 and d8 optimizations and resource shrinking to work on the Kotlin compiler front- and back-end, as well as the new Kotlin symbol processor. Subscribe to the or download the directly. Links R8/D8: KSP: Kotlin: Mads: Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Eric, Dany, and Romain. Chet not represented to hide the confused look he had on his face during the entire recording. We're injecting dependencies! In this episode, Chet and Romain are joined by Daniel Santiago from Jetpack, and Eric Chang from Dagger to talk about Hilt. Hilt builds on Dagger for form Android's new recommended way to perform dependency injection. And it's also a great opportunity for Chet and Romain to display their lack of knowledge in that space. Subscribe to the or download the directly. Links Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Dan (played by an icon), Greg, and a tiny Romain in the upper right This time, Romain was hosting all on his own for this conversation about game technology with Greg Hartrell, product manager for games on Play/Android, and Dan Galpin, developer advocate for games on Android. They talked about recent developments and offerings for game developers, including the Android development plugin for Visual Studio, other specialized tools for game developers, and new offerings from the team like Android Asset Delivery and Android App Bundle for distribution. Subscribe to the or download the directly. Links Greg: Dan: Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

The real star of the show: Jetpack Compose This week, after a long series of developer previews, we are celebrating the release of Jetpack Compose alpha. In this episode, Clara Bayarri, Matvei Malkov, and Anna-Chiara Bellini are joining Chet and Romain to talk about this milestone. You will learn more about what does the alpha mean to the team, where did Compose come from, how the team approaches API design, some of the challenges behind building a new UI toolkit, and much more. Subscribe to the or download the directly. Links Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Sean McQuillan and I talked with Nicolas Roard and John Hoford about MotionEditor, which in Android Studio 4.0. But as long as we were talking about that tool, we also talked extensively about MotionLayout in general as well as ConstraintLayout, new features like Flow, the difficulties of animating text properties, and more. Subscribe to the or download the directly. Links screencast series guide article guide article John: Nicolas: Chet: Tor: Romain: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Top row: Chet, Joshua and Romain. Bottom row: Renaud and Tor In this episode, Chet, Romain and Tor talk with Renaud Paquay and Joshua Duong from the Android Studio and Android Emulator teams. We cover the new ADB over WiFi feature in Android 11, and the Android Studio support for pairing and connecting. Subscribe to the or download the directly. Links Renaud: Joshua: Chet: Romain: Tor: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Top row: Tor and Romain Bottom row: Ryan and Chet In this episode, Chet, Romain and Tor talk with Ryan Mitchell from the Android Framework Team. We cover the Android resources in general and the aapt2 tool in particular. Subscribe to the or download the directly. Chet: Romain: Tor: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Chet, Dustin, Chris, and Romain. (Tor not pictured. Because he wasn't there) Romain and Chet talked with Dustin Lam and Chris Craik from the Toolkit team about Paging3. Paging3 (currently in alpha) is a complete rewrite of (wait for it...) Paging2, using Kotlin, coroutines, and Flow for optimal implementation and APIs. (But note that there are also APIs for developers using the Java programming language and/or RxJava, so take your pick). We talk about Paging, the asynchronous work that made coroutines an obvious choice for the implementation, recent and future features, and API design in general. Subscribe to the or download the directly. Links: Dustin: Chris: Chet: Romain: Tor: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Chet, Colin, Romain, and Tor This week, Tor, Romain and Chet are joined by a special guest: Colin White from Instacart. Colin is the author of Coil, a popular image loading library backed by Kotlin and Kotlin Coroutines. In this episode, Colin explains what Coil is, how and why it was created, etc. Subscribe to the or download the directly. Links: Colin: Chet: Romain: Tor: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Romain, Tor, and Chet talked with Jesse Wilson from Square. Jesse has worked on several popular open-source libraries, including OkHttp, Okio, and [Ok]Moshi. We talk about those libraries, and others, and about Android, library, framework and Kotlin development. And about that nasty habit some engineers have of turning a feature request or minor annoyance into a project of creating a new open-source library instead. Favorite quote, from Jesse: "I started with 2k. Someone told me 8k was faster." Subscribe to the or download the directly. Links: Jesse: Chet: Romain: Tor: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

This episode is dedicated to the memory of our dear friend and colleague, Carl Quinn. Our last episode of the year arrives just in time for the holiday season. In this episode, Tor, Chet, and Romain go over everything that happened in 2020, both good and bad. We look back at how conferences have been impacted by the pandemic, why Android Studio changed its versioning scheme, the new tools and libraries that were released, etc. We would like to thank all of our listeners for their continued support. We'll be back in early 2021 with more episodes and new guests! Subscribe to the or download the directly. Chet: Romain: Tor: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Top row: Chet, Romain, Rob. Bottom row: Wale, Tor. In this episode, we chat with Wale Ogunwale and Rob Carr from the Android Framework team about the Window Manager. Tune in to learn about the evolution of the window manager, the distinction between System UI and the window manager, implementation challenges and recent architectural changes. Subscribe to the or download the directly. Chet: Romain: Tor: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

It's history time! Or even [pre-]ART History time! We didn't take a picture this time. Please imagine what we looked like. This time, Tor, Romain, and Chet were joined by Dan Bornstein, one of the early members of the Android team. Dan joined in 2005 to create a runtime for Android, which became Dalvik. We talked about some of the early placeholder VMs used while Dalvik was coming online, some of the design decisions for Dalvik (like its register-based vs. stack-based implementation), and nice techy details about runtimes, garbage collectors, and optimizations. Subscribe to the or download the directly. Chet: Romain: Tor: Dan: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

What does a podcast look like? We don't know, so here's a picture of the podcast's website We want to hear from you! In this episode, Tor, Romain, and Chet talk about what they could do — or not do —to improve Android Developers Backstage. Please check our and let us know how you would like to see this podcast evolve. We recommend you first listen to the podcast to get the full context for some of the questions in the survey. Subscribe to the or download the directly. Chet: Romain: Tor: Thanks to continued tolerance and support by our audio engineer, Dustin Elm.

Chet, Nick, Clara, Leland, Tor, Adam, and Romain. So many guests! This time, Tor, Romain, and Chet chatted with a few people on the Jetpack Compose team, about... Jetpack Compose! Compose hit Beta a couple of weeks ago (don't believe me? Check out the recent !), so we took the opportunity to talk to some of the people that have helped build it. We talk about the current state of the library, but also about some of the design decisions that went into developing the APIs and functionality. (Note on the audio quality for this episode - it turns out that mixing so many people, all of whom recorded themselves separately using very different hardware and setups was... tricky. It's listenable, but maybe a tad below the level we shoot for. Blame the pandemic. I do.) Subscribe to the or download the directly. (overview, tutorial, docs, samples, and more) Chet: Romain: Tor: Nick: Clara: Leland: Adam: Thanks to our audio engineer, Dustin Elm, who has handled all of our audio mixing for the last couple of years, including the tricky part of mixing all of our remote- recorded episodes, like this one. Dustin's moving on to (greener? softer? louder?) pastures, so we'll be using a new, exciting process for mixing future episodes. Thanks, Dustin!