if (interactive()) {
library(shiny)
shinyApp(
ui = fluidPage(
useLoaders(),
actionButton("render", "Render"),
loaders(uiOutput = plotOutput("plot"),
type = "default",
style = "half",
text = "Loading...")
),
server = function(input, output) {
output$plot <- renderPlot({
input$render
Sys.sleep(3)
hist(mtcars$mpg)
})
}
)
}
Run the code above in your browser using DataLab