winit

f that you can find a few egui examples in the rust-android-examples repo. Alright, so after I've got the basic examples running, I wanted to combine them with iced. Iced is a crossplatform gui library focusing on desktop and web. The mobile support is explicitly a non-goal, as far as I can tell at the moment of writing. Yet, there's an issue where some people posted their experiments. That's how I knew it was possible: https://github.com/iced-rs/iced/issues/302 There's a way to integrate iced in wgpu applications, so called integration example: https://github.com/iced-rs/iced/tree/0.14.0/examples/integra... Above I mentioned that using winit and wgpu in combination with android-activity is enough to build the app. Putting together 1 + 1 I got 2: let's use iced integration example with android-activity. It was quite easy to compile with almost no errors. First issue I encountered is that there was no text rendered. I solved this by loading fonts the way it was shown here: https://github.com/pop-os/cosmic-text/issues/243#issue-21899... Then I patched a few widgets to add touch support. And that's it. My role here was to take all the prior work and combine it together in a way that there's a working example. Some other ways of building Android apps using Rust: - xilem has an explicit goal to support mobile https://github.com/linebender/xilem - egui supports mobile https://github.com/emilk/egui - game engines such as Fyrox and Bevy support mobile: - https://github.com/FyroxEngine/Fyrox - https://github.com/bevyengine/bevy - pretty much anything built on top of winit and wgpu All of the above is related to building native apps using either NativeActivity or GameActivity. I'm leaving webview out of scope of current post. What about iOS? As far as I know it should be similar or maybe simpler compared to Android. I haven't built it yet, but the next time I have a sizeable amount of free time, I'll try to make it work. The plan is the same: pick winit, wgpu, iced integration example, mix it together until it works. It'll require the same trick to load fonts, and maybe something else, but no visible blockers as of now. Once again, thanks to all the people who made it possible and I wish you have a great time building mobile apps with Rust!

ttps://news.ycombinator.com/item?id=33563857 : > - Secure Rust Guidelines > Memory management, > Checklist > Memory management: https://anssi-fr.github.io/rust-guide/05_memory.html Rust OS projects to safety critical with the forthcoming new guidelines: Redox, Cosmic, MotorOS, Maestro, Aerugo - "MotorOS: a Rust-first operating system for x64 VMs" https://news.ycombinator.com/item?id=38907876: "Maestro: A Linux-compatible kernel in Rust" (2023) https://news.ycombinator.com/item?id=38852360#38857185 ; redox-os, cosmic-de , Motūrus OS; MotorOS - https://news.ycombinator.com/item?id=38861799 : > COSMIC DE (Rust-based) supports rust-windowing/winit apps, which compile to a <canvas> tag in WASM. > winit: https://github.com/rust-windowing/winit - "Aerugo – RTOS for aerospace uses written in Rust" https://news.ycombinator.com/item?id=39245897 - "The Rust Implementation of GNU Coreutils Is Becoming Remarkably Robust" https://news.ycombinator.com/item?id=34743393 From a previous Ctrl-F rust,; "Rust in the Linux kernel" (2021) https://news.ycombinator.com/item?id=35783214 : - > Is this the source for the rust port of the Android binder kernel module?: https://android.googlesource.com/platform/frameworks/native/... > This guide with unsafe rust that calls into the C, and then with next gen much safer rust right next to it would be a helpful resource too. From https://news.ycombinator.com/item?id=34744433 ... From "Are software engineering “best practices” just developer preferences?" https://news.ycombinator.com/item?id=28709239 : >>>>> Which universities teach formal methods? /?hnlog "TLA" and "side channel"

by using these well-supported, cross platform, frameworks let us bootstrap a version of Linux quicker than expected and should make it easier to build Warp for other platforms (like Windows). Please let me know what you think! Happy to answer any questions, either about the product or about technical challenges. [1] https://github.com/rust-windowing/winit [2] https://github.com/gfx-rs/wgpu

//github.com/rust-windowing/winit [2] https://github.com/gfx-rs/wgpu

) - https://github.com/DioxusLabs/taffy (UI layout algorithms) - https://github.com/pop-os/cosmic-text (text rendering and editing) - https://github.com/AccessKit/accesskit (cross-platform accessibility APIs) In many cases there a see https://blessed.rs/crates#section-graphics-subsection-gui for a more complete list of frameworks and foundational libraries)