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Pass the argument preloader to the
dashboardPage() function. It expects a list containing all
parameters necessary to waiter::waiterShowOnLoad. The
duration is automatically handled by listening to the
shiny:idle event.
Please have a look to the {waiter} documentation for more
details.
That’s all!
library(shiny)
library(bs4Dash)
library(waiter)
shinyApp(
ui = dashboardPage(
preloader = list(html = tagList(spin_1(), "Loading ..."), color = "#3c8dbc"),
header = dashboardHeader(),
sidebar = dashboardSidebar(),
body = dashboardBody(
actionButton("reload", "Reload")
),
title = "Preloader"
),
server = function(input, output, session) {
# fake reload
observeEvent(input$reload, {
session$reload()
})
}
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