FileDialog

// open a file manager and show folder "/your/folder/path"
nux.ViewFileDialog().
    SetDirectory("/your/folder/path").
    Show()

// open a file manager and select files "logo.png" and "README.md"
nux.ViewFileDialog().
    SetActiveFileNames([]string{
        "/your/folder/path/logo.png",
        "/your/folder/path/README.md"}).
    Show()

// pick files
nux.PickFileDialog().
    SetDirectory("/your/folder/path").    // default folder for first open, can be empty
    SetExtensionFilters(map[string][]string{
        "images": {"bmp","jpg", "jpeg", "png"},
        "text": {"txt"}}).
    AllowsChooseFiles().
    AllowsMultipleSelection().   // if need pick single file, do not call it
    ShowModal(func(ok bool, ret []string){
        fmt.Println(ret) // show files user picked
    })

// pick folders
nux.PickFileDialog().
    SetDirectory("/your/folder/path").
    AllowsChooseFolders().
    AllowsMultipleSelection().
    ShowModal(func(ok bool, ret []string){
        fmt.Println(ret) // show folders user picked
    })

nux.SaveFileDialog().
    SetDirectory("/your/folder/path").
    SetSaveName("save_name.png").
    ShowModal(func(ok bool, ret string){
        saveFile(ret)  // save your file
    })