How to Build a Shared Rust Library for Android and iOS

Use the neon crate to compile your Rust library into a single binary compatible with both Android and iOS.

cargo install neon-cli
neon create mylib
# Add your Rust code to src/lib.rs
neon build --release

This generates a target/release folder containing the compiled library for your current platform. To build for the other platform, install the corresponding Xcode (iOS) or Android SDK (Android) and run neon build again with the appropriate environment.

The neon tool lets you write high-performance code in Rust and use it directly in your mobile apps. It handles the complex setup needed to make your code work on both iPhones and Android phones automatically. Think of it as a universal translator that turns your Rust instructions into a format both operating systems can understand.