How to Share Rust Code Between Mobile Platforms

Share Rust code between mobile platforms by creating a library crate and adding the Android and iOS targets to your toolchain.

1. Create a new library crate to hold your shared logic. cargo new --lib shared_logic
2. Install the Android and iOS targets for your Rust toolchain. rustup target add aarch64-linux-android aarch64-apple-ios
3. Configure your Cargo.toml to build for the specific mobile target. cargo build --target aarch64-linux-android --release
4. Use a binding generator like neon or bindgen to expose the library to your mobile app. cargo install neon-cli
5. Link the compiled binary into your Android or iOS project build configuration.

Sharing Rust code between mobile platforms lets you write performance-critical code once and use it on both Android and iPhones. Think of it like building a universal engine that fits into different car models without rebuilding the engine itself. You compile the code specifically for each phone's processor so it runs fast and safely.