useLoaders {standby}

CSS Loaders

Description

Simple CSS loaders

Usage

useLoaders()

loaders(uiOutput, type = "default", style = NULL, text = NULL)

Arguments

uiOutput

An output element to be wrapped within a loader.

type

The type of loader to use. Visit https://css-loader.raphaelfabeni.com/ for details.

• default

• bar

• bar-ping-pong

• border

• double

• clock

• curtain

• pokeball

• ball

• smartphone

• bouncing

• music

style

Custom styling for the loaders.

text

Custom text. Available only for the following types:

• default

• bar

• border

• curtain

• smartphone

Value

None

Functions

• useLoaders: Dependencies to include in your UI.

• loaders: Display loading animation.

Examples

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)
      })
    }
  )
}