How do you handle memory leaks in Flutter?

By strictly managing the lifecycle of streams, controllers, and observers, and profiling using DevTools.

Memory leaks happen when objects are no longer needed but remain referenced. To prevent this: 1. Always call dispose() on TextEditingController, AnimationController, etc. 2. Always .cancel() StreamSubscriptions. 3. Remove event listeners/observers in dispose(). Profile memory snapshots to find retained instances.