Description

In an AnsiSpinner (which StdoutLogger instantiates if terminal supports ANSI), there is a _defaultSlowWarning which shows after the timeout duration. The below issue points out that this warning message prints after the spinner, which makes the message difficult to read. This fix clears the spinner animation, and breaks to a newline before printing the warning message the first time. On successive iterations, the spinner is animated after the message.

Old

New

Related Issues

Resolves Flutter CLi Error on hot reload and hot restart #29598.

Checklist

• I read the [Contributor Guide] and followed the process outlined there for submitting PRs.
• My PR includes tests for all changed/updated/fixed behaviors (See [Test Coverage]).
• All existing and new tests are passing.
• I updated/added relevant documentation (doc comments with ///).
• The analyzer (flutter analyze --flutter-repo) does not report any problems on my PR.
• I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement].
• I signed the [CLA].
• I am willing to follow-up on review comments in a timely manner.

Breaking Change

Does your PR require Flutter developers to manually update their apps to accommodate your change?

• Yes, this is a breaking change (Please read [Handling breaking changes]).
• No, this is not a breaking change.