select_notary_file.kv

#:import getpass getpass
<SelectNotaryFileScreen>:
    BoxLayout:
        orientation: 'vertical'
        ActionBar:
            pos_hint: {'x': .0, 'y': .9}
            ActionView:

                use_separator: True
                ActionPrevious:
                    app_icon:'img/logo.png'
                    title: '  Select File'
                    with_previous: False
                ActionOverflow:
                ActionButton:
                    icon:'img/prev.png'
                    on_press: root.manager.current = 'landingpage'
                ActionButton:
                    icon:'img/next.png'
                    text: 'Next'
                    on_press: root.next_callback()
        Label:
            text: "Please select a file to upload below:"
            id: filelabel
            pos_hint: {'x': .0, 'y': .0}
            size_hint: .45, .1
            halign: 'left'
            font_size: '20sp'
        FileChooserIconView:
            id: filechooser
            show_hidden: True
            on_selection: root.my_callback(filechooser.selection)
            size: .9, .6
            rootpath: str('/Users/' + getpass.getuser() + '/Downloads')
        Label:
            text: ""
            id: filelabel
            pos_hint: {'x': .0, 'y': .0}
            size_hint: .1, .1
            halign: 'left'
            font_size: '20sp'