Build Rust code for Android using cargo-ndk to generate native libraries for JNI integration.
Use the cargo-ndk tool to build your Rust library as a shared object (.so) for Android, then link it via JNI in your Java/Kotlin code.
cargo ndk build --release --target aarch64-linux-android
This command compiles your Rust crate into native binaries for Android architectures, placing the resulting .so files in target/aarch64-linux-android/release ready for inclusion in your src/main/jniLibs directory.
Using Rust in Android Applications via JNI/NDK lets you write performance-critical app logic in Rust and run it inside your Android app. Think of it as building a specialized engine in Rust that your Android app plugs into for heavy lifting. You compile the Rust code into a file Android understands, then tell your app where to find it.