This is an auxiliary function needed to monitor the state of the UI for live language translations.
Examples
if (interactive()) {
library(shiny)
library(shiny.i18n)
# for this example to run make sure that you have a translation file
# in the same path
i18n <- Translator$new(translation_json_path = "translation.json")
i18n$set_translation_language("en")
ui <- fluidPage(
usei18n(i18n),
actionButton("go", "GO!"),
h2(i18n$t("Hello Shiny!"))
)
server <- shinyServer(function(input, output, session) {
observeEvent(input$go,{
update_lang("pl")
})
})
shinyApp(ui = ui, server = server)
}