shinyMobile (version 1.0.1)

f7VirtualList: Framework7 virtual list

Description

f7VirtualList is a high performance list container. Use if you have too many components in f7List.

f7VirtualListItem is an item component for f7VirtualList.

Usage

f7VirtualList(id, items, rowsBefore = NULL, rowsAfter = NULL, cache = TRUE)
f7VirtualListItem(
  ...,
  title = NULL,
  subtitle = NULL,
  header = NULL,
  footer = NULL,
  href = NULL,
  media = NULL,
  right = NULL
)

Arguments

id

Virtual list unique id.

items

List items. Slot for f7VirtualListItem.

rowsBefore

Amount of rows (items) to be rendered before current screen scroll position. By default it is equal to double amount of rows (items) that fit to screen.

rowsAfter

Amount of rows (items) to be rendered after current screen scroll position. By default it is equal to the amount of rows (items) that fit to screen.

cache

Disable or enable DOM cache for already rendered list items. In this case each item will be rendered only once and all further manipulations will be with DOM element. It is useful if your list items have some user interaction elements (like form elements or swipe outs) or could be modified.

...

Item text.

title

Item title.

subtitle

Item subtitle.

header

Item header. Do not use when f7List mode is not NULL.

footer

Item footer. Do not use when f7List mode is not NULL.

href

Item external link.

media

Expect f7Icon or img.

right

Right content if any.

Examples

if (interactive()) {
 library(shiny)
 library(shinyMobile)
 shinyApp(
  ui = f7Page(
    title = "Virtual List",
    f7SingleLayout(
      navbar = f7Navbar(
        title = "Virtual Lists",
        hairline = FALSE,
        shadow = TRUE
      ),
      # main content
      f7VirtualList(
        id = "vlist",
        rowsBefore = 2,
        rowsAfter = 2,
        items = lapply(1:2000, function(i) {
          f7VirtualListItem(
            title = paste("Title", i),
            subtitle = paste("Subtitle", i),
            header = paste("Header", i),
            footer = paste("Footer", i),
            right = paste("Right", i),
            content = i,
            media = img(src = "https://cdn.framework7.io/placeholder/fashion-88x88-1.jpg")
          )
        })
      )
    )
  ),
  server = function(input, output) {

  }
 )

 # below example will not load with classic f7List
 #shinyApp(
 #  ui = f7Page(
 #    title = "My app",
 #    f7SingleLayout(
 #      navbar = f7Navbar(
 #        title = "Virtual Lists",
 #        hairline = FALSE,
 #        shadow = TRUE
 #      ),
 #      # main content
 #      f7List(
 #        lapply(1:20000, function(i) {
 #          f7ListItem(
 #            title = paste("Title", i),
 #            subtitle = paste("Subtitle", i),
 #            header = paste("Header", i),
 #            footer = paste("Footer", i),
 #            right = paste("Right", i),
 #            content = i
 #          )
 #        })
 #      )
 #    )
 #  ),
 #  server = function(input, output) {
 #
 #  }
 #)
}