垂直和水平对齐checkBoxGroupInput

时间:2017-03-12 00:09:18

标签: css r shiny

在类似帖子(How to align a group of checkboxGroupInput in R Shiny)中,复选框仅垂直对齐(如我的示例所示)或仅水平对齐(R Shiny display checkboxGroupInput horizontally)。我想知道是否有办法在两种意义上实现这一点(在列中)。

library(shiny)
examplesubset<-read.table(text="
                          elements locations
                          element_One A,M,P,R
                          element_Two A,B,C,M,P,E,I
                          element_Three G,M,T,F,O,H,A,B,C,D" ,  header=TRUE, stringsAsFactors=FALSE)
examplesubset$elements<-as.factor(examplesubset$elements)

ui<-fluidPage(    
  tags$head(tags$style(HTML("
                            .multicol {
                            -webkit-column-count: 3; /* Chrome, Safari, Opera */
                            -moz-column-count: 3;    /* Firefox */
                            column-count: 3;
                            -moz-column-fill: auto;
                            -column-fill: auto;
                            }
                            "))),
  titlePanel("Panel"),
  sidebarLayout(      
    sidebarPanel(
      selectInput("elements", "Select elements:", 
                  choices=examplesubset$elements)
    ) ,
    mainPanel(
      fluidRow(
        column(3,
               uiOutput("checkboxesui")
        ))))
  )

server<-function(input, output,session) {
  elementsselected<-reactive({
    sp<-examplesubset[examplesubset$elements==input$elements,]
    sp<-droplevels(sp)
  })
  locationsreactive<- reactive({
    j<-as.factor(unique(unlist(strsplit(elementsselected()$locations, ",", fixed = TRUE) ) ) )
    j<-droplevels(j)
  })
  output$checkboxesui<-renderUI({
    tags$div(align = 'left',
             class = 'multicol',
             checkboxGroupInput("locationscheckboxes", "locations",
                                choices=levels(locationsreactive()) 
                                , selected=c() )
             ) 
  })
}
shinyApp(ui = ui, server = server)

enter image description here

1 个答案:

答案 0 :(得分:4)

以下代码应该可以解决问题。您需要将CSS列应用于您拥有它们的下方div,然后从复选框的上方和下方删除填充,我还将列填充更改为平衡:

library(shiny)
examplesubset<-read.table(text="
                          elements locations
                          element_One A,M,P,A,R,T
                          element_Two A,B,C,M,P,E,I,N,S
                          element_Three G,M,T,F,S,V,P" ,  header=TRUE, stringsAsFactors=FALSE)
examplesubset$elements<-as.factor(examplesubset$elements)

ui<-fluidPage(    
  tags$head(tags$style(HTML("
                            .multicol .shiny-options-group{
                            -webkit-column-count: 3; /* Chrome, Safari, Opera */
                            -moz-column-count: 3;    /* Firefox */
                            column-count: 3;
                            -moz-column-fill: balanced;
                            -column-fill: balanced;
                            }
                            .checkbox{
                            margin-top: 0px !important;
                            -webkit-margin-after: 0px !important; 
                            }
                            "))),
  titlePanel("Panel"),
  sidebarLayout(      
    sidebarPanel(
      selectInput("elements", "Select elements:", 
                  choices=examplesubset$elements)
    ) ,
    mainPanel(
      fluidRow(
        column(3,
               uiOutput("checkboxesui")
        ))))
  )

server<-function(input, output,session) {
  elementsselected<-reactive({
    sp<-examplesubset[examplesubset$elements==input$elements,]
    sp<-droplevels(sp)
  })
  locationsreactive<- reactive({
    j<-as.factor(unique(unlist(strsplit(elementsselected()$locations, ",", fixed = TRUE) ) ) )
    j<-droplevels(j)
  })
  output$checkboxesui<-renderUI({
    tags$div(align = 'left',
             class = 'multicol',
             checkboxGroupInput("locationscheckboxes", "locations",
                                choices=levels(locationsreactive()) 
                                , selected=c() )
    ) 
  })
}
shinyApp(ui = ui, server = server)

Fixed

另一种选择是使用CSS flexbox:https://css-tricks.com/snippets/css/a-guide-to-flexbox/

这样可以解决您所描述的排序问题,但是您需要根据您的内容,使用shiny-options-group div的大小进行调整,以使所有内容符合您的需要。重新排序复选框选项可能更容易,因此它们会显示您想要的方式。