standby offers several types of loading screens for Shiny apps. This document is a quickstart guide for using standby in your Shiny applications. Let us look at a simple example below:
library(shiny)
library(standby)
ui <- fluidPage(
standby::useSpinkit(), # include dependencies
fluidRow(
standby::spinkit(plotOutput("plot1")), # wrap output inside loader
actionButton("render", "Render")
)
)
server <- function(input, output, session) {
output$plot1 <- renderPlot({
input$render
Sys.sleep(3)
plot(cars)
})
}
shinyApp(ui, server)To use spinners/loaders from standby in your Shiny application, include the following in the UI part of the app:
use*
functions (useSpinkit() in the above example).spinkit() in the above example).The below table displays the dependency and rendering functions along with references:
| Index | Dependency | Render | Reference |
|---|---|---|---|
| 1 |
useThreeDots()
|
threeDots()
|
https://github.com/nzbin/three-dots |
| 2 |
useSpinkit()
|
spinkit()
|
https://github.com/tobiasahlin/SpinKit |
| 3 |
useVizLoad()
|
vizLoad()
|
https://github.com/RIDICS/Loading-Visualization |
| 4 |
useSpinners()
|
spinners()
|
https://github.com/lukehaas/css-loaders |
| 5 |
useLoaders()
|
loaders()
|
https://github.com/raphaelfabeni/css-loader |
Visit the documentation to learn how to customize the alerts and notifications.