How do you handle asynchronous operations in Flutter?

Asynchronous programming in Flutter is crucial for managing tasks like network requests without blocking the UI.

Here's how to handle it:

1. Use async and await keywords to perform asynchronous operations.
2. Utilize Future and Stream classes for handling results and events.
3. Update the UI using state management techniques after the asynchronous operation completes.

Example of fetching data asynchronously:

Future fetchData() async { ... }

This method can be called in a widget's lifecycle method to load data when the widget is built.