Speed Up Your Flutter App Without Changing an API | KBTG Life
Article Summary
KBTG's Flutter team cut app load time by 30% without touching a single backend API. The secret? Rethinking how they used async/await.
Amorn Apichattanakul, a Google Developer Expert for Flutter at KBTG, breaks down how sequential await calls create hidden bottlenecks. The article demonstrates practical refactoring techniques using Future.wait, Dart's record patterns, and Completer to unlock parallel execution.
Key Takeaways
- Sequential awaits turned 1670ms into 1170ms using Future.wait for parallel execution
- Dart record patterns eliminate type casting and improve code readability
- Completer solves race conditions when .then() chains need coordination
- Removing unnecessary awaits lets independent operations run concurrently
Critical Insight
By identifying independent async operations and running them in parallel with Future.wait, the team achieved a 500ms performance improvement without any API changes.
