When do you use a Stream instead of a notifier to manage state?

Short answer

A Stream suits a sequence of events or asynchronous data, while a notifier is simpler for a current synchronous state that needs direct reading.

Explanation

Choose a Stream when time, ordering, and errors are part of the contract, such as a socket or repository events. Do not turn a local boolean into a Stream without reason; the extra complexity needs a measurable benefit.

Common mistakes

• Creating a new Stream in every build.
• Forgetting to handle the loading, error, and done states.

Follow-up questions

• How do you use Future.wait safely with more than one async operation?

Sources

• Flutter API — StreamBuilder