app_gui.py 文件源码

def on_open_press(self):
        # initialize filepicker instance
        content = FilePicker(on_close=self.close_popup, path=self.drive_selected)

        self.file_popup = Popup(title='Select your file',
                                content=content,
                                size_hint=(.8, .8))
        self.file_popup.open()