r - 在 Shiny 应用页面的标题栏中显示图标

Question

我正在寻找某种方法在我的 Shiny App ('My App') 名称之前的标题栏中显示一些 Snap，如下所示:

library(shiny)

ui = shinyUI(       
        fluidPage(title = "My App", 
            selectInput(inputId = "Pick", label = "Chose", choices = c('A', 'B', 'C'), selected = NULL, multiple = FALSE, selectize = TRUE, size = NULL, width = 300))
        )

server = function(input, output, session) {
    }

shinyApp(ui = ui, server = server)

我试过在 title 参数中使用 HTML 标签，但它没有显示任何内容。

library(shiny)

ui = shinyUI(       
        fluidPage(title = div(img(src = 'https://guidetoiceland.is/image/389003/x/0/the-beautiful-waterfalls-of-south-iceland-seljalandsfoss-skogafoss-amp-gljufrabui-1.jpg', "My App")), 
            selectInput(inputId = "Pick", label = "Chose", choices = c('A', 'B', 'C'), selected = NULL, multiple = FALSE, selectize = TRUE, size = NULL, width = 300))
        )

server = function(input, output, session) {
    }

shinyApp(ui = ui, server = server)

如果有人指导我朝着正确的方向前进，我将不胜感激。

谢谢，

Answer 1

应该这样做:

library(shiny)

ui = shinyUI(fluidPage(
  # Application title
  titlePanel(
    title =
      tags$link(rel = "icon", type = "image/gif", href = "https://guidetoiceland.is/image/389003/x/0/the-beautiful-waterfalls-of-south-iceland-seljalandsfoss-skogafoss-amp-gljufrabui-1.jpg"),
    "My App"
  ),
  selectInput(
    inputId = "Pick",
    label = "Chose",
    choices = c('A', 'B', 'C'),
    selected = NULL,
    multiple = FALSE,
    selectize = TRUE,
    size = NULL,
    width = 300
  ))
)

server = function(input, output, session) {
}

shinyApp(ui = ui, server = server)

除非我误解了你的问题，否则这里是输出。您必须在浏览器中打开它才能看到它: