我正在尝试创建一个书本目录,需要帮助来在表格的单元格中以闪亮的形式呈现图像。我正在使用的代码如下,从闪亮的应用程序中的代码中获得的输出是带有列“图片”,但在其单元格中而不是图片中包含图片的链接。如何解决此问题?请帮帮我 数据集中的URL格式为:https://images.gr-assets.com/books/1447303603s/2767052.jpg
数据看起来像这样
title authors ratings_count average_rating image_url
HP JK 10 4 https://images.gr-assets.com/books/1447303603s/2767052.jpg
ui <- fluidPage(
####Heading##
titlePanel(div(HTML("<b> Interested In books? </b>"))),
###Creating tabs###
tabsetPanel(
####First tab for crime####
tabPanel(" Book Directory ",
sidebarLayout(
sidebarPanel(
#First Input##
selectizeInput(inputId = "Book",
label = " Choose a Book",
choices = book_names)),
##Output
mainPanel = (tableOutput("View")
)
)
)
)
)
###Server app
server <- function(input, output) {
output$View <- renderTable({
books1 <- books[books$title%in% input$Book,]
books1 %>%
mutate(image = paste0('<img src="', image_url, '"></img>')) %>%
select(image,title,authors,average_rating,ratings_count)
})
}
shinyApp(ui = ui, server = server)
答案 0 :(得分:1)
我之前使用tableHTML包做了类似的事情,实际上,您也可以使用它向表中添加各种格式的内容,例如:
库和样本数据
library(tableHTML)
library(shiny)
library(dplyr)
books <- read.table(text = "title authors ratings_count average_rating image_url
HP JK 10 4 https://images.gr-assets.com/books/1447303603s/2767052.jpg", header=TRUE)
books_names <- unique(books$title)
UI(相同的ui):
ui <- fluidPage(
titlePanel(div(HTML("<b> Interested In books? </b>"))),
tabsetPanel(
tabPanel(" Book Directory ",
sidebarLayout(
sidebarPanel(
selectizeInput(inputId = "Book",
label = " Choose a Book",
choices = books_names)),
mainPanel = (tableOutput("View"))
)
)
)
)
服务器:
server <- function(input, output) {
output$View <- render_tableHTML({
books[books$title%in% input$Book,] %>%
mutate(image = paste0('<img src="', image_url, '"></img>')) %>%
select(image,title,authors,average_rating,ratings_count) %>%
tableHTML(escape = FALSE,
rownames = FALSE,
widths = c(40, 40, 65, 120, 120)) %>%
# align the text like this
add_css_table(css = list('text-align', 'center'))
# you can also add a theme
# add_theme('scientific')
})
}
运行应用程序:
shinyApp(ui = ui, server = server)
您可以使用add_css_...
系列函数以任何方式设置表格格式,例如add_css_table(css = list('text-align', 'center'))
使文本在整个表格中居中对齐。
看看软件包的vignettes,看看软件包提供的其他功能