Progress bar in a sweet alert
progressSweetAlert(
session = getDefaultReactiveDomain(),
id,
value,
total = NULL,
display_pct = FALSE,
size = NULL,
status = NULL,
striped = FALSE,
title = NULL,
...
)The session object passed to function given to shinyServer.
An id used to update the progress bar.
Value of the progress bar between 0 and 100, if >100 you must provide total.
Used to calculate percentage if value > 100, force an indicator to appear on top right of the progress bar.
logical, display percentage on the progress bar.
Size, NULL by default or a value in 'xxs', 'xs', 'sm', only work with package shinydashboard.
Color, must be a valid Bootstrap status : primary, info, success, warning, danger.
logical, add a striped effect.
character, optional title.
Arguments passed to sendSweetAlert()
if (interactive()) {
library("shiny")
library("shinyWidgets")
ui <- fluidPage(
tags$h1("Progress bar in Sweet Alert"),
useSweetAlert(), # /!\ needed with 'progressSweetAlert'
actionButton(
inputId = "go",
label = "Launch long calculation !"
)
)
server <- function(input, output, session) {
observeEvent(input$go, {
progressSweetAlert(
session = session, id = "myprogress",
title = "Work in progress",
display_pct = TRUE, value = 0
)
for (i in seq_len(50)) {
Sys.sleep(0.1)
updateProgressBar(
session = session,
id = "myprogress",
value = i*2
)
}
closeSweetAlert(session = session)
sendSweetAlert(
session = session,
title =" Calculation completed !",
type = "success"
)
})
}
shinyApp(ui = ui, server = server)
}