1 | initial version |
To compile a Rust crate for Android on Windows using cross-compilation, you will need to follow these steps:
Install the Android NDK by downloading it from the official website and adding the path to the NDK directory to your system environment variables.
Install Rust and the Android target platform by running the following command in your terminal:
rustup target add arm-linux-androideabi
cargo-apk
package by running the following command in your terminal:cargo install cargo-apk
cargo new myapp --bin
build.rs
file with the following content:use std::env;
fn main() {
// Set the target architecture to ARMv7 (32-bit)
env::set_var("CARGO_CFG_TARGET_ARCH", "armv7");
// Set the target OS to Android
env::set_var("CARGO_CFG_TARGET_OS", "android");
// Set the target triple for cross-compilation
env::set_var("CARGO_CFG_TARGET_TRIPLE", "arm-linux-androideabi");
// Set the path to the Android NDK toolchain
env::set_var("PATH", "path/to/ndk-toolchain/bin:$PATH");
}
Replace path/to/ndk-toolchain
with the path to your Android NDK toolchain directory.
Cargo.toml
file:[dependencies]
jni = "0.19.0"
android-ndk-sys = "21.3.6528147"
jni
directory in your project root and add a new Android.mk
file with the following content:LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := myapp
LOCAL_SRC_FILES := libmyapp.so
include $(PREBUILT_SHARED_LIBRARY)
build.gradle
file in your project to include the following:android {
defaultConfig {
ndk {
abiFilters "armeabi-v7a", "x86"
}
}
externalNativeBuild {
ndkBuild {
path 'jni/Android.mk'
}
}
}
cargo apk build --target=arm-linux-androideabi
target/android-artifacts
directory.Note: You may encounter issues during the build process, such as missing Rust dependencies or linking errors. These can usually be resolved by tweaking the build configurations and consulting the official Rust and Android documentations.