express.ui.busy_indicators.use

express.ui.busy_indicators.use(spinners=True, pulse=True, fade=True)

Enable/disable busy indication

Busy indicators provide a visual cue to users when the server is busy calculating outputs or otherwise performing tasks (e.g., producing downloads). When enabled (they are by default), a spinner is shown on each calculating/recalculating output, and a pulsing banner is shown at the top of the page when the app is otherwise busy. To disable, include the result of this function in anywhere in the app's UI.

Parameters

spinners : bool = True

Whether to show a spinner on each calculating/recalculating output.

pulse : bool = True

Whether to show a pulsing banner at the top of the page when the app is busy.

fade : bool = True

Whether to fade recalculating outputs. A value of False is equivalent to shiny.express.ui.busy_indicators.options(fade_opacity=1).

Note

When both spinners and pulse are set to True, the pulse is disabled when spinner(s) are active. When both spinners and pulse are set to False, no busy indication is shown (other than the gray-ing out of recalculating outputs).

See Also

• options for customizing busy indicators.