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View Code? Open in Web Editor NEWEgui + winit + wgpu + android example
License: MIT License
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Tested on which tooling versions?
Thanks for sharing this code.
It may be a good idea to document what packages should be installed and what are the tools versions you know this example to work.
It is, currently, working for me with the following packages provided by archlinux:
Rust 1.70
Java 8 -- any newer java failed on the final steps
android-ndk r25.c-2 -- lastest version available to Arch
android-platform-25 7.1.1_r03-2 -- 34 is available, but this must match the NDK version
android-sdk 26.1.1-2.1
android-sdk-build-tools-25 r25-1 -- idem
android-sdk-cmdline-tools-latest 9.0-1
android-sdk-platform-tools 34.0.3-1
android-studio 2022.2.1.20-1
android-tools 34.0.1-2
aarch64-linux-android -- through "rustup target add aarch64-linux-android"
black screen on real phone
Hello,
Phone: lineageos ASUS (android 11)
rustup:
$ rustup show
Default host: x86_64-unknown-linux-gnu
rustup home: /home/user/.rustup
installed targets for active toolchain
--------------------------------------
aarch64-linux-android
x86_64-unknown-linux-gnu
active toolchain
----------------
stable-x86_64-unknown-linux-gnu (default)
rustc 1.65.0 (897e37553 2022-11-02)
Debian packages:
ii android-sdk 28.0.2+3 amd64 Software development kit for Android platform
ii android-sdk-build-tools 29.0.3+3 amd64 Tools for building Android applications
ii android-sdk-build-tools-common 29.0.3+3 all Tools for building Android applications - Common files
ii android-sdk-common 28.0.2+3 all Common files of Android SDK base toolset
ii android-sdk-platform-tools 28.0.2+3 amd64 Tools for interacting with an Android platform
ii android-sdk-platform-tools-common 28.0.2+3 all Tools for interacting with an Android platform - Common files
ii google-android-ndk-installer 21d+r1 amd64 Google Android Native Development Kit (NDK) Installer
ii libandroid-23-java 6.0.1+r72-6 all Android framework for API Level 23 (6.0 Marshmallow)
$ cargo apk version
cargo-apk 0.9.6
I built and install default debug apk version.
I have only black screen after installation and i'm not an android expert. How can i debug to help?
Success to compile APK file but failed to execute.
I use following commands in windows 11, powershell:
PS D:\dode\hello_world_android_egui> $env:ANDROID_HOME="C:\Users\22730\AppData\Local\Android\Sdk"; $env:NDK_HOME="C:\Users\22730\AppData\Local\Android\Sdk\ndk\25.2.9519653"; $env:JAVA_HOME="D:\Program Files\Android\Android Studio\jbr"; cargo apk build
Using package `hello_world_android_egui` in `D:\dode\hello_world_android_egui\Cargo.toml`
warning: Found `debug_assertions` in `target.'cfg(...)'.dependencies`. This value is not supported for selecting dependencies and will not work as expected. To learn more visit https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies
warning: unused variable: `window_id`
--> src\lib.rs:120:21
|
120 | window_id,
| ^^^^^^^^^ help: try ignoring the field: `window_id: _`
|
= note: `#[warn(unused_variables)]` on by default
warning: unused variable: `rdr`
--> src\lib.rs:155:33
|
155 | RedrawRequested(rdr) => {}
| ^^^ help: if this is intentional, prefix it with an underscore: `_rdr`
warning: variable does not need to be mutable
--> src\lib.rs:83:9
|
83 | let mut instance = wgpu::Instance::new(instance_descriptor);
| ----^^^^^^^^
| |
| help: remove this `mut`
|
= note: `#[warn(unused_mut)]` on by default
warning: `hello_world_android_egui` (lib) generated 3 warnings (run `cargo fix --lib -p hello_world_android_egui` to apply 3 suggestions)
Finished dev [unoptimized + debuginfo] target(s) in 0.85s
'lib/arm64-v8a/libhello_world_android_egui.so'...
Verifying alignment of D:\dode\hello_world_android_egui\target\debug\apk\hello_world_android_egui.apk (4)...
49 AndroidManifest.xml (OK - compressed)
896 lib/arm64-v8a/libhello_world_android_egui.so (OK)
Verification succesful
Signing `D:\dode\hello_world_android_egui\target\debug\apk\hello_world_android_egui.apk` with keystore `C:\Users\22730\.android\debug.keystore`and I can find the apk file in ./target/debug/apk, while it cannot be executed. Strange.
Hello, I'm new to Rust. I ran "cargo build --bin main" but I don't know how to use it on Android.
immediate crash when executing compiled APK
You can find the relevant logs here. Note that the test device in question is a Pixel 6a running Graphene OS with Android version 14. I ran the application several times in quick succession, and each time it just immediately closed.
Here is the key relevant snippit:
(std::sys::pal::unix::abort_internal::hf3d69b9b37d787e3+8)
(std::panicking::rust_panic_with_hook::hc29e1a472e6ef851+828)
(std::panicking::begin_panic_handler::_$u7b$$u7b$closure$u7d$$u7d$::h2b4f9210102bef7c+88)
(std::sys::backtrace::__rust_end_short_backtrace::hb348b0483fe29366+8)
(rust_begin_unwind+40)
(core::panicking::panic_nounwind_fmt::hc03c55581afbd5c5+44)
(core::panicking::panic_nounwind::h24a49d684808e46f+56)
(core::slice::raw::from_raw_parts::precondition_check::h5cddddaa92262cf8+244)
(core::slice::raw::from_raw_parts::h1183b85ae4e3715a+48)
(android_activity::activity_impl::glue::WaitableNativeActivityState::new::hb7a700687cb34c43+108)
(android_activity::activity_impl::glue::NativeActivityGlue::new::hc1ca47e24e663f60+40)
(android_activity::activity_impl::glue::ANativeActivity_onCreate::_$u7b$$u7b$closure$u7d$$u7d$::h9a122cea80b781a0+132)
(_$LT$core..panic..unwind_safe..AssertUnwindSafe$LT$F$GT$$u20$as$u20$core..ops..function..FnOnce$LT$$LP$$RP$$GT$$GT$::call_once::h9f37977778ac5cb3+32)
(std::panicking::try::do_call::hb848eb6092f1417c+64)
(__rust_try+24)
(std::panicking::try::h82f979c8ee8005bc+68)
(std::panic::catch_unwind::h75603fcd5a7dedbb+4)
(android_activity::util::abort_on_panic::hcfc06e3581ad3467+32)
(ANativeActivity_onCreate+48)
So the Rust .so is panicking, but I'm not sure why.
Provide APK to download
Hello. I have visited your repo, and I would like to try your demo, but I need to build it sonehow. Would be way better if I'd be able to download it and try right away.
Can't build APK
When trying to get the APK compiling on NixOS, I get the following:
> cargo apk build
Using package `hello_world_android_egui` in `/home/ada/Projects/rs/hello_world_android_egui/Cargo.toml`
Warning: Environment variable ANDROID_SDK_ROOT is deprecated (https://developer.android.com/studio/command-line/variables#envar). It will be used until it is unset and replaced by ANDROID_HOME.
thread 'main' panicked at /build/cargo-apk-0.9.6-vendor.tar.gz/ndk-build/src/ndk.rs:89:14:
Failed to read source.properties: Os { code: 2, kind: NotFound, message: "No such file or directory" }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
This is confusing to me, because there was no source.properties in the git repo, yet somehow apparently it worked before?
Out of desparation, I tried xbuild too (as suggested by cargo-apk's README.md) and it gives me:
> x build --arch arm64 --platform android
[1/3] Fetch precompiled artifacts
Error: No such file or directory (os error 2)
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