Android Developers Backstage

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.