startTracing method

Future<void> startTracing({
  1. List<TimelineStream> streams = const <TimelineStream>[TimelineStream.all],
  2. Duration timeout = kUnusuallyLongTimeout,
})

Starts recording performance traces.

The timeout argument causes a warning to be displayed to the user if the operation exceeds the specified timeout; it does not actually cancel the operation.

For WebFlutterDriver, this is only supported for Chrome.

Implementation

Future<void> startTracing({
  List<TimelineStream> streams = const <TimelineStream>[TimelineStream.all],
  Duration timeout = kUnusuallyLongTimeout,
}) async {
  throw UnimplementedError();
}