How Callstack Integrates React Native into an Existing Flutter Application
Original post Integrating React Native into an Existing Flutter Application
Article Summary
Callstack explores one of mobile dev's wildest experiments: embedding React Native inside a Flutter app. Yes, you read that right.
This article from Callstack tackles the unconventional brownfield scenario of integrating React Native into an existing Flutter application. While most brownfield discussions focus on adding React Native to native iOS/Android apps, this explores the technical feasibility and tradeoffs of mixing two cross-platform frameworks.
Key Takeaways
- Demonstrates React Native can technically run inside Flutter apps
- Requires native bridge setup on both iOS and Android platforms
- Adds significant complexity with two JavaScript engines and rendering systems
- Better suited for gradual migration than long term dual framework strategy
While technically possible, running React Native inside Flutter creates architectural complexity that's only justified for specific migration scenarios.
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What This Article Covers
Teams working with Flutter often feel pushed to add React Native features while keeping their existing code intact. Most documentation doesn't explain how to actually do this hybrid approach.
Callstack builds native bridges on iOS and Android that let React Native modules run alongside Flutter's rendering system. They use platform-specific channel communication to make it work.
The integration is possible, but it means running two separate JavaScript engines and rendering systems at once. This adds real overhead to your architecture. It only makes sense if you're gradually moving from one framework to the other, not as a long-term setup.
This page summarizes “Integrating React Native into an Existing Flutter Application” by Callstack, published Jul 24, 2024. All credit for the original work goes to the authors.
