<Inbox>:
    name: 'inbox'
    #transition: NoTransition()
    BoxLayout:
        orientation: 'vertical'
        spacing: dp(5)
        SearchBar:
        GridLayout:
            id: identi_tag
            padding: [20, 0, 0, 5]
            cols: 1
            size_hint_y: None
            height: self.minimum_height
            MDLabel:
                text: ''
                font_style: 'Subtitle2'
        #FloatLayout:
        #    MDScrollViewRefreshLayout:
        #        id: refresh_layout
        #        refresh_callback: root.refresh_callback
        #        root_layout: root.set_root_layout()
        #        MDList:
        #            id: ml
        BoxLayout:
            orientation:'vertical'
            ScrollView:
                id: scroll_y
                do_scroll_x: False
                MDList:
                    id: ml
    Loader:
    ComposerButton: