rust-jni-bridge

Bridge Rust and Kotlin on Android using JNI binding patterns.

58|4|Updated Mar 8, 2026

Search Tags:#rust #android #kotlin #bindings #ffi #uniffi #jni

Ready to run

npx skills add https://github.com/po4yka/RIPDPI --skill rust-jni-bridge

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: rust-jni-bridge
Source: https://github.com/po4yka/RIPDPI/tree/main/.github/skills/rust-jni-bridge
Command: npx skills add https://github.com/po4yka/RIPDPI --skill rust-jni-bridge

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Bridges Rust and Kotlin on Android by providing JNI binding patterns, examples, and best practices.

Core Features & Use Cases

Guidance on raw JNI usage with the jni crate for manual bindings and UniFFI for auto-generated bindings.
Comparative analysis to help teams decide which path to adopt based on API surface and maintenance needs.
Example code snippets and integration tips for exposing Rust logic to Kotlin in Android apps.

Quick Start

Implement a minimal Rust function and expose it to Kotlin via JNI using the provided patterns.

Frequently Asked Questions about rust-jni-bridge

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I call Rust code from Kotlin on Android?▼

You can expose Rust code to Kotlin on Android by using JNI binding patterns and examples. This Skill provides best practices for bridging performance-sensitive native Rust components to managed Kotlin UI code safely.

What is the best way to expose Rust libraries to Kotlin, using raw JNI or UniFFI?▼

The best way to expose Rust libraries depends on your API surface and maintenance needs. This Skill provides a comparative analysis between manual raw JNI bindings and auto-generated UniFFI bindings to help your team decide which path to adopt.

How do I handle cross-language error mapping between Rust and Kotlin?▼

Cross-language error mapping between Rust and Kotlin requires safe type mapping patterns. This Skill offers guidance on safe cross-language error handling and type mappings to ensure robust communication across the FFI boundary.

Do I need the jni crate to create Rust bindings for Android apps?▼

You need the jni crate if you choose the raw JNI usage path for manual bindings. Alternatively, you can use UniFFI for auto-generated bindings, and this Skill provides decision guidance to help you choose the right approach.

How does JNI bridge performance-sensitive components to managed Android code?▼

JNI bridges performance-sensitive components to managed Android code by providing a native interface for cross-language communication. This Skill explains how to apply these patterns to expose Rust logic directly to your Kotlin Android application.