Loading Visualization

Loading bars and spinners.

Usage

useVizLoad()

vizLoad(
  uiOutput,
  type = "bars",
  size = "large",
  color = NULL,
  add_label = FALSE,
  label = "Loading..."
)

Arguments

uiOutput

An output element to be wrapped within a spinner.

type

The type of bar/spinner to use. Valid values are:

• bars

• squares

• circles

• dots

• spinner

• dashed

• line

• bordered_line

size

The size of the bar/spinner. Valid values are:

• large

• medium

• small

• tiny

• fluid

color

The color of the bar/spinner. Choose between hexadecimal, RGB or keyword values.

add_label

Logical; if TRUE, displays a label below the bar/spinner. Defaults to FALSE.

label

The label to be displayed below the bar/spinner. add_label must be set to TRUE to display the label.

Value

None

Functions

• useVizLoad: Dependencies to include in your UI.

• vizLoad: Display loading animation.

Examples

if (interactive()) {
  library(shiny)

  shinyApp(
    ui = fluidPage(
      useVizLoad(),
      actionButton("render", "Render"),
      vizLoad(plotOutput("plot"))
    ),
    server = function(input, output) {
      output$plot <- renderPlot({
        input$render
        Sys.sleep(3)
        hist(mtcars$mpg)
      })
    }
  )
}