Android Backstage, a podcast by and for Android developers. Hosted by developers from the Android engineering team, this show covers topics of interest to Andro...
In this episode Chet, Romain and Tor chat with Shai Barack about how the Android platform team studies performance and understands system health - and what is system health anyway? We talk about measuring performance, deciding trade-offs, and our favorite tools such as Perfetto, Compiler Explorer, and Android Studio's Memory Profiler. Chapters: Intro (00:00) System health (0:27) Efforts to make apps more efficient (3:35) Telemetry data (5:59) Trade offs between long battery life and good performance (8:21) Scheduling groups (10:38) Static drain (13:32) Collaborating with App developers vs operating system (19:10) High refresh rates (23:26) Reach vs engagement (32:02) What tools does your team use to optimize performance? (34:10) Godbolt.org (37:09) Demystifying (39:39) The best tools are multi-player (43:52) R8 or R-Not? (45:42) Optimizing for feature sets (48:05) Tools, not Rules (50:08) What are the tools I should be aware of as an app developer looking to upscale performance? (54:36) Allocation tracker (55:37) Open source tools (57:08) Useful resources for devs to understand various tools (59:04) Final thoughts (1:06:19) Links: Compiler Explorer → https://goo.gle/3Zbq6DV Perfetto → https://goo.gle/3OtD3UK and https://goo.gle/3B3S3p5 Tools, not Rules → https://goo.gle/416CyY7 Shai: Romain: @romainguy, threads.net/@romainguy, [email protected] Tor: threads.net/@tor.norbye and [email protected] Chet: @chethaase, threads.net/@chet.haase, and [email protected] Catch videos on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers → https://goo.gle/AndroidDevs
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Episode 210: Studio Jewelry
In this episode Chet, Romain and Tor chat with Sebastiano about how the Android Studio team builds UIs. We talk about how Compose for Desktop is used in parts of Android Studio and how the Compose Markdown renderer available in the Jewel library makes Studio Bot tick. Chapters: Intro (00:00) Android Dev UX team (00:39) What kind of libraries and languages are used to build Android studio? (1:52) Swing (2:53) Reactive and declarative programming models (8:25) SKIA for Kotlin (10:01) Jetpack Compose widgets (11:54) Jewel (13:07) Text rendering across platforms (15:51) Differences in behaviors (17:40) Support for markdown files (20:26) What is markdown? (21:25) Swing and html (25:45) Selection handling in StudioBot (28:46) Boosting productivity with Compose (30:40) Standalone vs plugin artifacts (34:29) The difference between Jewel & Swing (35:30) HTML vs Markdown (39:31) Markdeep (41:53) Jewel's Markdown API (43:46) Where to find Jewel? (46:54) Sebastiano’s podcast - Code with the Italians (47:34) Final thoughts (49:13) Links: Jetpack Compose Compose Multiplatform, for Desktop Jewel Jewel Markdown Renderer Sebastiano: https://github.com/rock3r, https://codewiththeitalians.it/ Romain: @romainguy, threads.net/@romainguy, [email protected] Tor: threads.net/@tor.norbye and [email protected] Chet: @chethaase, threads.net/@chet.haase, and [email protected] Catch videos on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers → https://goo.gle/AndroidDevs
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Episode 209: Compose animations
In this episode Chet, Romain and Tor chat with Doris Liu from the Compose team about animations in Compose -- covering everything from the basic primitives up to the recently added Shared Element Transitions. Chapters: Intro (00:00) Animation capabilities of Compose (1:06) Different types of animation specs (3:43) Layers of functionality, transitions (7:49) TargetBasedAnimation (9:48) Vectors & velocity of color change (12:43) Second layer parallel to animation spec (16:39) Animation interruptions (18:48) Motion layout problem-solving (20:19) Both scale and move in question (25:45) Different mental models for layout animation in Compose vs. View (26:20) Shared element (31:05) Are there things you wish more people were aware of? (34:19) What's the tooling story for this? (41:57) What is Look Ahead? (43:16) All software is regret (48:49) New API: Modifier.animateBounds (51:52) How to reach Doris – leave a comment (55:57) Motion Frame of Reference Placement (57:29) Wrap up (59:10) Links: Shared element tutorial → https://goo.gle/3XrGYp5 Shared element talk → https://goo.gle/47tm3qm A quick guide to compose animations → https://goo.gle/3Tm853p The API layers except the highest level APIs we chatted about in the podcast → https://goo.gle/3MGsiNE Doris: @doris4lt Romain: @romainguy, threads.net/@romainguy, [email protected] Tor: threads.net/@tor.norbye and [email protected] Chet: @chethaase, threads.net/@chet.haase, and [email protected] Catch more Android Developers Backstage on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers YouTube → https://goo.gle/AndroidDevs
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Episode 208: Micro optimizations
In this episode Tor and Romain find themselves without a guest and decide to chat about micro optimizations and writing custom tools. Tor and Romain Chapters: Intro (00:00) Micro optimizations (00:32) Kotlin explorer (3:25) Avoiding object allocations (6:49) Code Inefficiencies (8:10) Compilers (12:13) Understand assembly with AI (18:39) Layout opt (21:20) Programmers writing tools (21:52) char.isBlank (25:35) Lint checks (27:59) Companion objects (29:40) Java assertion mechanism (32:00) Hash maps (35:13) When to micro optimize and when not to (43:46) Benchmarking (47:26) New optimizations (48:46) Wrap up (50:46) Romain: @romainguy, threads.net/@romainguy, [email protected] Tor: threads.net/@tor.norbye and [email protected] Catch videos on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers → https://goo.gle/AndroidDevs
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Episode 207: AI development assistance
In this episode we talk with Kathy Korevec from the AIDA team at Google about AI assisted developer tools, such as Android Studio -- which is using Gemini AI models provided by AIDA. Romain, Kathy, and Tor Kathy: twitter.com/simpsoka Romain: @romainguy, threads.net/@romainguy, [email protected] Tor: threads.net/@tor.norbye and [email protected] Check out → https://goo.gle/3wK4EM4 Catch videos on YouTube → https://goo.gle/adb-podcast Subscribe to Android Developers → https://goo.gle/AndroidDevs
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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