Android Backstage, a podcast by and for Android developers. Hosted by developers from the Android engineering team, this show covers topics of interest to Android programmers, with in-depth discussions and interviews with engineers on the Android team at Google. Subscribe to Android Developers YouTube → https://goo.gle/AndroidDevs
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Episode 155: WindowManagerManagers
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 podcast feed or download the audio file directly. Chet: @chethaase Romain: @romainguy Tor: @tornorbye Thanks to continued tolerance and support by our audio engineer, Dustin Elm.
Episode 154: It's a Wrap!
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 podcast feed or download the audio file directly. Chet: @chethaase Romain: @romainguy Tor: @tornorbye Thanks to continued tolerance and support by our audio engineer, Dustin Elm.
Episode 153: Ok, Ok, Ok
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 podcast feed or download the audio file directly. Links: OkHttp OkHttp Kotlin Release Okio Okio Buffer.kt internals GraalVM Jesse: @jessewilson Chet: @chethaase Romain: @romainguy Tor: @tornorbye Thanks to continued tolerance and support by our audio engineer, Dustin Elm.
Episode 152: Image Loading with Coil
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 podcast feed or download the audio file directly. Links: Coil Coil on GitHub The feature request Romain filed And the PR to implement that feature request Colin: @colinwhi Chet: @chethaase Romain: @romainguy Tor: @tornorbye Thanks to continued tolerance and support by our audio engineer, Dustin Elm.
Episode 151: Paging3
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 podcast feed or download the audio file directly. Links: AndroidX Paging library Bug bounty hotlist! Dustin: @itsdustinlam Chris: @chris_craik Chet: @chethaase Romain: @romainguy Tor: @tornorbye Thanks to continued tolerance and support by our audio engineer, Dustin Elm.
Episode 150: Aaptly Named
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 podcast feed or download the audio file directly. Chet: @chethaase Romain: @romainguy Tor: @tornorbye Thanks to continued tolerance and support by our audio engineer, Dustin Elm.
Episode 149: ADB over WiFi on ADB
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 podcast feed or download the audio file directly. Links https://developer.android.com/studio/command-line/adb#connect-to-a-device-over-wi-fi-android-11+ Renaud: /u/adt_renaud Joshua: /u/joshuaduong Chet: @chethaase Romain: @romainguy Tor: @tornorbye Thanks to continued tolerance and support by our audio engineer, Dustin Elm.
ADB 148: [Constraint|Motion][Layout|Editor]
Sean McQuillan and I talked with Nicolas Roard and John Hoford about MotionEditor, which went stable recently 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 podcast feed or download the audio file directly. Links MotionTags screencast series MotionEditor guide MotionEditor release article ConstraintLayout guide ConstraintLayout 2.0 article John: @johnhoford Nicolas: @camaelon Chet: @chethaase Tor: @tornorbye Romain: @romainguy Thanks to continued tolerance and support by our audio engineer, Dustin Elm.
Episode 147: Jetpack Compose Alpha
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 podcast feed or download the audio file directly. Links Jetpack Compose Tutorials and codelabs Android Studio Setup Samples on GitHub Thinking in Compose (video) Chet: @chethaase Tor: @tornorbye Romain: @romainguy Thanks to continued tolerance and support by our audio engineer, Dustin Elm.
Episode 146: The Game Changer
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 podcast feed or download the audio file directly. Links Build Games for Android Android Game Dev Show Greg: @ghartrell Dan: @dagalpin Chet: @chethaase Tor: @tornorbye Romain: @romainguy Thanks to continued tolerance and support by our audio engineer, Dustin Elm.
Episode 145: Grab that Dagger by the Hilt
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 podcast feed or download the audio file directly. Links Dagger.dev Hilt on dagger.dev Introduction to Hilt by Dany Dependency injection on Android Chet: @chethaase Tor: @tornorbye Romain: @romainguy Thanks to continued tolerance and support by our audio engineer, Dustin Elm.
Episode 144: Compilers
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 podcast feed or download the audio file directly. Links R8/D8: https://r8.googlesource.com/r8 KSP: https://github.com/android/kotlin/tree/ksp/libraries/tools/kotlin-symbol-processing-api Kotlin: https://github.com/JetBrains/kotlin/ Mads: @madsager Chet: @chethaase Tor: @tornorbye Romain: @romainguy Thanks to continued tolerance and support by our audio engineer, Dustin Elm.
Episode 143: Shhhh! Private!
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 podcast feed or download the audio file directly. Links Developer Guide: Request App Permissions Video: Developing with the latest privacy changes in Android 11 Video: All things privacy in Android 11 Chet: @chethaase Tor: @tornorbye Romain: @romainguy Thanks to continued tolerance and support by our audio engineer, Dustin Elm.
Episode 142: Machine Learning Learning
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 podcast feed or download the audio file directly. Links ML Kit: g.co/mlkit TensorFlow Lite Model Maker: https://www.tensorflow.org/lite/tutorials/model_maker_image_classification Android Studio 4.1 with ML Binding - https://developer.android.com/studio/preview/features#tensor-flow-lite-models People + AI Guidebook, suitable for SWE, Designers and PMs https://pair.withgoogle.com/guidebook/ Material Design Showcase Sample https://github.com/googlesamples/mlkit/tree/master/android/material-showcase Hoi: @hoitab Chet: @chethaase Tor: @tornorbye Romain: @romainguy Thanks to continued tolerance and support by our audio engineer, Dustin Elm.
Episode 141: Discussing Conversations
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 bubble or setting a reminder. Tune in to learn more about this new people-forward design. Subscribe to the podcast feed or download the audio file directly. Links Android 11 Beta Notifications Chet: @chethaase Tor: @tornorbye Romain: @romainguy Thanks to continued tolerance and support by our audio engineer, Dustin Elm.