carouselBarBuilder property
Builds a replacement for the default carousel bar at the top of the task.
When null the default bar is shown — logo, "x of y" progress and a close
button — configured through carouselBarImage,
carouselBarHorizontalPadding, carouselBarVerticalPadding and
carouselBarBackgroundColor. Those four are ignored when a builder is
supplied, since the builder owns the whole bar.
Return const SizedBox.shrink() to remove the bar entirely.
Note that the default bar holds the only built-in way to cancel a task, so
a replacement should provide its own affordance — either
blocTask.sendStatus(RPStepStatus.Canceled) to cancel directly, or
RPUITaskState.showCancelConfirmationDialog to confirm first.
Implementation
final RPCarouselBarBuilder? carouselBarBuilder;