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)
hist(mtcars$mpg)
})
}
shinyApp(ui, server)To use spinners/loaders from standby in your Shiny application, include the following in the UI part of the app:
- Include the dependencies using the appropriate
use*functions (useSpinkit()in the above example). - Wrap the target output using corresponding rendering function
(
spinkit()in the above example).
The below table displays the dependency and rendering functions along with references:
Visit the documentation to learn how to customize the alerts and notifications.