示例#1
0
文件: main.py 项目: Pabluu/Conversor
class Main(App):
    theme_cls = ThemeManager()
    theme_cls.primary_palette = 'Red'
    title = "HQ's TO PDF"

    def __init__(self, **kwargs):
        super(Main, self).__init__(**kwargs)
        self.manager_open = False
        self.manager = None

    def build(self):
        return Init()

    def file_manager_open(self):
        if not self.manager:
            self.manager = ModalView(size_hint=(1, 1), auto_dismiss=False)
            self.file_manager = MDFileManager(
                exit_manager=self.exit_manager,
                select_path=self.select_path,
                search='all',
                ext=['.*'])
            self.manager.add_widget(self.file_manager)
            self.file_manager.show(HOME)
        self.manager_open = True
        self.manager.open()

    def select_path(self, path):
        """It will be called when you click on the file name
        or the catalog selection button.

        :type path: str;
        :param path: path to the selected directory or file;

        """

        self.exit_manager()
        toast(path)
        Thread(target=convert.Converter, args=[path]).start()

    def exit_manager(self, *args):
        """Called when the user reaches the root of the directory tree."""

        self.manager.dismiss()
        self.manager_open = False

    def events(self, instance, keyboard, keycode, text, modifiers):
        """Called when buttons are pressed on the mobile device.."""

        if keyboard in (1001, 27):
            if self.manager_open:
                self.file_manager.back()
        return True
class Example(App):
    theme_cls = ThemeManager()
    theme_cls.primary_palette = 'Teal'
    title = "File Manage"
    def __init__(self, **kwargs):
        super().__init__(**kwargs)
        Window.bind(on_keyboard=self.events)
        self.manager_open = False
        self.manager = None
    def build(self):
        return Factory.ExampleFileManager()
    def file_manager_open(self):
        if not self.manager:
            self.manager = ModalView(size_hint=(1, 1), auto_dismiss=False)
            self.file_manager = MDFileManager(
                exit_manager=self.exit_manager, select_path=self.select_path)
            self.manager.add_widget(self.file_manager)
            self.file_manager.show('/')  # output manager to the screen
        self.manager_open = True
        self.manager.open()
    def select_path(self, path):
        '''It will be called when you click on the file name
        or the catalog selection button.
        :type path: str;
        :param path: path to the selected directory or file;
        '''
        self.exit_manager()
        toast(path)
    def exit_manager(self, *args):
        '''Called when the user reaches the root of the directory tree.'''
        self.manager.dismiss()
        self.manager_open = False
    def events(self, instance, keyboard, keycode, text, modifiers):
        '''Called when buttons are pressed on the mobile device..'''
        if keyboard in (1001, 27):
            if self.manager_open:
                self.file_manager.back()
        return True
示例#3
0
class KitchenSink(App, Screens):
    theme_cls = ThemeManager()
    theme_cls.primary_palette = 'Blue'
    previous_date = ObjectProperty()
    title = "Kitchen Sink"
    theme_cls.primary_palette = 'Blue'

    # theme_cls.theme_style = 'Dark'

    def __init__(self, **kwargs):
        super(KitchenSink, self).__init__(**kwargs)

        self.menu_items = [{
            'viewclass': 'MDMenuItem',
            'text': 'Example item %d' % i,
            'callback': self.callback_for_menu_items
        } for i in range(15)]
        self.Window = Window
        self.manager = None
        self.md_theme_picker = None
        self.long_dialog = None
        self.input_dialog = None
        self.alert_dialog = None
        self.ok_cancel_dialog = None
        self.long_dialog = None
        self.dialog = None
        self.manager_open = False
        self.cards_created = False
        self.user_card = None
        self.bs_menu_1 = None
        self.bs_menu_2 = None
        self.tick = 0
        self.create_stack_floating_buttons = False
        self.previous_text =\
            "Welcome to the application [b][color={COLOR}]Kitchen Sink"\
            "[/color][/b].\nTo see [b][color={COLOR}]KivyMD[/color][/b] "\
            "examples, open the menu and select from the list the desired "\
            "example\n\n"\
            ""\
            ""\
            "Author - [b][color={COLOR}]Andrés Rodríguez[/color][/b]\n"\
            "[u][b][color={COLOR}][email protected][/color]"\
            "[/b][/u]\n\n"\
            "Author this Fork - [b][color={COLOR}]Ivanov Yuri[/color][/b]\n"\
            "[u][b][color={COLOR}][email protected][/color]"\
            "[/b][u]".format(COLOR=get_hex_from_color(
                self.theme_cls.primary_color))
        self.names_contacts = ('Alexandr Taylor', 'Yuri Ivanov',
                               'Robert Patric', 'Bob Marley', 'Magnus Carlsen',
                               'Jon Romero', 'Anna Bell', 'Maxim Kramerer',
                               'Sasha Gray', 'Vladimir Ivanenko')
        Window.bind(on_keyboard=self.events)
        crop_image(
            (Window.width, int(dp(Window.height * 35 // 100))),
            '{}/assets/guitar-1139397_1280.png'.format(self.directory),
            '{}/assets/guitar-1139397_1280_crop.png'.format(self.directory))

    def crop_image_for_tile(self, instance, size, path_to_crop_image):
        if not os.path.exists(os.path.join(self.directory,
                                           path_to_crop_image)):
            size = (int(size[0]), int(size[1]))
            path_to_origin_image = path_to_crop_image.replace('_tile_crop', '')
            crop_image(size, path_to_origin_image, path_to_crop_image)
        instance.source = path_to_crop_image

    def theme_picker_open(self):
        if not self.md_theme_picker:
            from kivymd.theme_picker import MDThemePicker
            self.md_theme_picker = MDThemePicker()
        self.md_theme_picker.open()

    def example_add_stack_floating_buttons(self):
        from kivymd.stackfloatingbuttons import MDStackFloatingButtons

        def set_my_language(instance_button):
            toast(instance_button.icon)

        if not self.create_stack_floating_buttons:
            screen = self.main_widget.ids.scr_mngr.get_screen('stack buttons')
            screen.add_widget(
                MDStackFloatingButtons(icon='lead-pencil',
                                       floating_data={
                                           'Python': 'language-python',
                                           'Php': 'language-php',
                                           'C++': 'language-cpp'
                                       },
                                       callback=set_my_language))
            self.create_stack_floating_buttons = True

    def set_accordion_list(self):
        from kivymd.accordionlistitem import MDAccordionListItem

        def callback(text):
            toast('{} to {}'.format(text, content.name_item))

        content = ContentForAnimCard(callback=callback)

        for name_contact in self.names_contacts:
            self.accordion_list.ids.anim_list.add_widget(
                MDAccordionListItem(content=content,
                                    icon='assets/kivymd_logo.png',
                                    title=name_contact))

    def set_chevron_back_screen(self):
        """Sets the return chevron to the previous screen in ToolBar."""

        self.main_widget.ids.toolbar.right_action_items = [[
            'dots-vertical', lambda x: self.root.toggle_nav_drawer()
        ]]

    def download_progress_hide(self, instance_progress, value):
        """Hides progress progress."""

        self.main_widget.ids.toolbar.right_action_items =\
            [['download',
              lambda x: self.download_progress_show(instance_progress)]]

    def download_progress_show(self, instance_progress):
        self.set_chevron_back_screen()
        instance_progress.open()
        instance_progress.animation_progress_from_fade()

    def show_example_download_file(self, interval):
        from kivymd.progressloader import MDProgressLoader

        def get_connect(host="8.8.8.8", port=53, timeout=3):
            import socket
            try:
                socket.setdefaulttimeout(timeout)
                socket.socket(socket.AF_INET, socket.SOCK_STREAM).connect(
                    (host, port))
                return True
            except (TimeoutError, ConnectionError, OSError):
                return False

        if get_connect():
            link = 'https://www.python.org/ftp/python/3.5.1/'\
                   'python-3.5.1-embed-win32.zip'
            progress = MDProgressLoader(
                url_on_image=link,
                path_to_file=os.path.join(self.directory, 'python-3.5.1.zip'),
                download_complete=self.download_complete,
                download_hide=self.download_progress_hide)
            progress.start(self.download_file.ids.box_flt)
        else:
            toast('Connect error!')

    def download_complete(self):
        self.set_chevron_back_screen()
        toast('Done')

    def file_manager_open(self):
        from kivymd.filemanager import MDFileManager
        from kivymd.dialog import MDDialog

        def open_file_manager(text_item, dialog):
            previous = False if text_item == 'List' else True
            self.manager = ModalView(size_hint=(1, 1), auto_dismiss=False)
            self.file_manager = MDFileManager(exit_manager=self.exit_manager,
                                              select_path=self.select_path,
                                              previous=previous)
            self.manager.add_widget(self.file_manager)
            self.file_manager.show(self.user_data_dir)
            self.manager_open = True
            self.manager.open()

        MDDialog(title='Title',
                 size_hint=(.8, .4),
                 text_button_ok='List',
                 text="Open manager with 'list' or 'previous' mode?",
                 text_button_cancel='Previous',
                 events_callback=open_file_manager).open()

    def select_path(self, path):
        """It will be called when you click on the file name
        or the catalog selection button.

        :type path: str;
        :param path: path to the selected directory or file;

        """

        self.exit_manager()
        toast(path)

    def exit_manager(self, *args):
        """Called when the user reaches the root of the directory tree."""

        self.manager.dismiss()
        self.manager_open = False
        self.set_chevron_menu()

    def set_chevron_menu(self):
        self.main_widget.ids.toolbar.left_action_items = [[
            'menu', lambda x: self.root.toggle_nav_drawer()
        ]]

    def events(self, instance, keyboard, keycode, text, modifiers):
        """Called when buttons are pressed on the mobile device.."""

        if keyboard in (1001, 27):
            if self.manager_open:
                self.file_manager.back()
        return True

    def callback_for_menu_items(self, *args):
        toast(args[0])

    def add_cards(self, instance_grid_card):
        from kivymd.cards import MDCardPost

        def callback(instance, value):
            if value is None:
                toast('Delete post %s' % str(instance))
            elif isinstance(value, int):
                toast('Set like in %d stars' % value)
            elif isinstance(value, str):
                toast('Repost with %s ' % value)
            elif isinstance(value, list):
                toast(value[1])

        if not self.cards_created:
            self.cards_created = True
            menu_items = [{
                'viewclass': 'MDMenuItem',
                'text': 'Example item %d' % i,
                'callback': self.callback_for_menu_items
            } for i in range(2)]
            buttons = ['facebook', 'vk', 'twitter']

            instance_grid_card.add_widget(
                MDCardPost(text_post='Card with text',
                           swipe=True,
                           callback=callback))
            instance_grid_card.add_widget(
                MDCardPost(
                    right_menu=menu_items,
                    swipe=True,
                    text_post='Card with a button to open the menu MDDropDown',
                    callback=callback))
            instance_grid_card.add_widget(
                MDCardPost(likes_stars=True,
                           callback=callback,
                           swipe=True,
                           text_post='Card with asterisks for voting.'))

            instance_grid_card.add_widget(
                MDCardPost(
                    source="./assets/kitten-1049129_1280.png",
                    tile_text="Little Baby",
                    tile_font_style="Headline",
                    text_post="This is my favorite cat. He's only six months "
                    "old. He loves milk and steals sausages :) "
                    "And he likes to play in the garden.",
                    with_image=True,
                    swipe=True,
                    callback=callback,
                    buttons=buttons))

    def update_screen(self, instance):
        def update_screen(interval):
            self.tick += 1
            if self.tick > 2:
                instance.update = True
                self.tick = 0
                self.update_spinner.ids.upd_lbl.text = "New string"
                Clock.unschedule(update_screen)

        Clock.schedule_interval(update_screen, 1)

    main_widget = None

    def build(self):
        self.main_widget = Builder.load_string(main_widget_kv)
        # self.bottom_navigation_remove_mobile(self.main_widget)
        return self.main_widget

    def set_popup_screen(self, content_popup):
        popup_menu = ContentForAnimCard()
        popup_menu.add_widget(Widget(size_hint_y=None, height=dp(150)))
        popup_screen = self.popup_screen.ids.popup_screen
        popup_screen.screen = popup_menu
        popup_screen.background_color = [.3, .3, .3, 1]
        popup_screen.max_height = content_popup.ids.image.height + dp(5)

    def bottom_navigation_remove_mobile(self, widget):
        # Removes some items from bottom-navigation demo when on mobile
        if DEVICE_TYPE == 'mobile':
            widget.ids.bottom_navigation_demo.remove_widget(
                widget.ids.bottom_navigation_desktop_2)
        if DEVICE_TYPE == 'mobile' or DEVICE_TYPE == 'tablet':
            widget.ids.bottom_navigation_demo.remove_widget(
                widget.ids.bottom_navigation_desktop_1)

    def show_user_example_animation_card(self):
        from kivymd.useranimationcard import MDUserAnimationCard

        def main_back_callback():
            toast('Close card')

        if not self.user_card:
            self.user_card = MDUserAnimationCard(
                user_name="Lion Lion",
                path_to_avatar="./assets/guitar-1139397_1280.png",
                callback=main_back_callback)
            self.user_card.box_content.add_widget(ContentForAnimCard())
        self.user_card.open()

    def show_example_snackbar(self, snack_type):
        from kivymd.snackbars import Snackbar

        if snack_type == 'simple':
            Snackbar(text="This is a snackbar!").show()
        elif snack_type == 'button':
            Snackbar(text="This is a snackbar",
                     button_text="with a button!",
                     button_callback=lambda *args: 2).show()
        elif snack_type == 'verylong':
            Snackbar(text="This is a very very very very very very very "
                     "long snackbar!").show()

    def show_example_input_dialog(self):
        def result(text_button, instance):
            toast(instance.text_field.text)

        if not self.input_dialog:
            from kivymd.dialog import MDInputDialog

            self.input_dialog = MDInputDialog(title='Title',
                                              hint_text='Hint text',
                                              size_hint=(.8, .4),
                                              text_button_ok='Ok',
                                              events_callback=result)
        self.input_dialog.open()

    def show_example_alert_dialog(self):
        if not self.alert_dialog:
            from kivymd.dialog import MDDialog

            self.alert_dialog = MDDialog(
                title='Title',
                size_hint=(.8, .4),
                text_button_ok='Ok',
                text="This is Alert dialog",
                events_callback=self.callback_for_menu_items)
        self.alert_dialog.open()

    def show_example_ok_cancel_dialog(self):
        if not self.ok_cancel_dialog:
            from kivymd.dialog import MDDialog

            self.ok_cancel_dialog = MDDialog(
                title='Title',
                size_hint=(.8, .4),
                text_button_ok='Ok',
                text="This is Ok Cancel dialog",
                text_button_cancel='Cancel',
                events_callback=self.callback_for_menu_items)
        self.ok_cancel_dialog.open()

    def show_example_long_dialog(self):
        if not self.long_dialog:
            from kivymd.dialog import MDDialog

            self.long_dialog = MDDialog(
                text="Lorem ipsum dolor sit amet, consectetur adipiscing "
                "elit, sed do eiusmod tempor incididunt ut labore et "
                "dolore magna aliqua. Ut enim ad minim veniam, quis "
                "nostrud exercitation ullamco laboris nisi ut aliquip "
                "ex ea commodo consequat. Duis aute irure dolor in "
                "reprehenderit in voluptate velit esse cillum dolore eu "
                "fugiat nulla pariatur. Excepteur sint occaecat "
                "cupidatat non proident, sunt in culpa qui officia "
                "deserunt mollit anim id est laborum.",
                title='Title',
                size_hint=(.8, .4),
                text_button_ok='Yes',
                events_callback=self.callback_for_menu_items)
        self.long_dialog.open()

    def get_time_picker_data(self, instance, time):
        self.pickers.ids.time_picker_label.text = str(time)
        self.previous_time = time

    def show_example_time_picker(self):
        from kivymd.time_picker import MDTimePicker

        time_dialog = MDTimePicker()
        time_dialog.bind(time=self.get_time_picker_data)

        if self.pickers.ids.time_picker_use_previous_time.active:
            try:
                time_dialog.set_time(self.previous_time)
            except AttributeError:
                pass
        time_dialog.open()

    def set_previous_date(self, date_obj):
        self.previous_date = date_obj
        self.pickers.ids.date_picker_label.text = str(date_obj)

    def show_example_date_picker(self):
        from kivymd.date_picker import MDDatePicker

        if self.pickers.ids.date_picker_use_previous_date.active:
            pd = self.previous_date
            try:
                MDDatePicker(self.set_previous_date, pd.year, pd.month,
                             pd.day).open()
            except AttributeError:
                MDDatePicker(self.set_previous_date).open()
        else:
            MDDatePicker(self.set_previous_date).open()

    def show_example_bottom_sheet(self):
        from kivymd.bottomsheet import MDListBottomSheet

        if not self.bs_menu_1:
            self.bs_menu_1 = MDListBottomSheet()
            self.bs_menu_1.add_item(
                "Here's an item with text only", lambda x: self.
                callback_for_menu_items("Here's an item with text only"))
            self.bs_menu_1.add_item("Here's an item with an icon",
                                    lambda x: self.callback_for_menu_items(
                                        "Here's an item with an icon"),
                                    icon='clipboard-account')
            self.bs_menu_1.add_item(
                "Here's another!",
                lambda x: self.callback_for_menu_items("Here's another!"),
                icon='nfc')
        self.bs_menu_1.open()

    def show_example_grid_bottom_sheet(self):
        if not self.bs_menu_2:
            from kivymd.bottomsheet import MDGridBottomSheet

            self.bs_menu_2 = MDGridBottomSheet()
            self.bs_menu_2.add_item(
                "Facebook",
                lambda x: self.callback_for_menu_items("Facebook"),
                icon_src='./assets/facebook-box.png')
            self.bs_menu_2.add_item(
                "YouTube",
                lambda x: self.callback_for_menu_items("YouTube"),
                icon_src='./assets/youtube-play.png')
            self.bs_menu_2.add_item(
                "Twitter",
                lambda x: self.callback_for_menu_items("Twitter"),
                icon_src='./assets/twitter.png')
            self.bs_menu_2.add_item(
                "Da Cloud",
                lambda x: self.callback_for_menu_items("Da Cloud"),
                icon_src='./assets/cloud-upload.png')
            self.bs_menu_2.add_item(
                "Camera",
                lambda x: self.callback_for_menu_items("Camera"),
                icon_src='./assets/camera.png')
        self.bs_menu_2.open()

    def set_appbar(self):
        from kivymd.toolbar import MDBottomAppBar

        def press_button(inctance):
            toast('Press Button')

        self.md_app_bar = MDBottomAppBar(
            md_bg_color=self.theme_cls.primary_color,
            left_action_items=[['menu', lambda x: x], ['clock', lambda x: x],
                               ['dots-vertical', lambda x: x]],
            anchor='right',
            callback=press_button)

    def move_item_menu(self, anchor):
        md_app_bar = self.md_app_bar
        if md_app_bar.anchor != anchor:
            if len(md_app_bar.right_action_items):
                md_app_bar.left_action_items.append(
                    md_app_bar.right_action_items[0])
                md_app_bar.right_action_items = []
            else:
                left_action_items = md_app_bar.left_action_items
                action_items = left_action_items[0:2]
                md_app_bar.right_action_items = [left_action_items[-1]]
                md_app_bar.left_action_items = action_items

    def set_error_message(self, *args):
        if len(self.root.ids.text_field_error.text) == 2:
            self.root.ids.text_field_error.error = True
        else:
            self.root.ids.text_field_error.error = False

    def add_icon_item(self, name_icon):
        self.main_widget.ids.scr_mngr.get_screen(
            'md icons').ids.rv.data.append({
                'viewclass':
                'MDIconItemForMdIconsList',
                'icon':
                name_icon,
                'text':
                name_icon,
                'callback':
                self.callback_for_menu_items
            })

    def set_list_md_icons(self, text='', search=False):
        self.main_widget.ids.scr_mngr.get_screen('md icons').ids.rv.data = []
        for name_icon in md_icons.keys():
            if search:
                if text in name_icon:
                    self.add_icon_item(name_icon)
            else:
                self.add_icon_item(name_icon)

    def on_pause(self):
        return True

    def on_stop(self):
        pass

    def open_settings(self, *args):
        return False
示例#4
0
class Mergency(App, Designer):
    theme_cls = ThemeManager()
    theme_cls.accent_palette = 'Orange'
    previous_date = ObjectProperty()
    title = "Mergency"
    theme_cls.theme_style = 'Dark'

    def __init__(self, **kwargs):
        super().__init__(**kwargs)

        self.menu_items = [{
            'viewclass': 'MDMenuItem',
            'text': 'Example item %d' % i,
            'callback': self.callback_for_menu_items
        } for i in range(15)]
        self.Window = Window
        self.manager = None
        self.md_app_bar = None
        self.instance_menu_demo_apps = None
        self.md_theme_picker = None
        self.long_dialog = None
        self.input_dialog = None
        self.alert_dialog = None
        self.ok_cancel_dialog = None
        self.long_dialog = None
        self.dialog = None
        self.manager_open = False
        self.cards_created = False
        self.user_card = None
        self.bs_menu_1 = None
        self.bs_menu_2 = None
        self.my_snackbar = None
        self._interval = 0
        self.tick = 0
        self.create_stack_floating_buttons = False
        Window.bind(on_keyboard=self.events)
        crop_image(
            (Window.width, int(dp(Window.height * 35 // 100))),
            '{}/assets/guitar-1139397_1280.png'.format(self.directory),
            '{}/assets/guitar-1139397_1280_crop.png'.format(self.directory))
        # DB Data =======================================================
        self.db = None
        self.host = StringProperty(None)
        self.user = StringProperty(None)
        self.password = StringProperty(None)
        self.service = StringProperty(None)
        self.port = StringProperty(None)
        # TABS Data =====================================================
        self.accidents = None
        self.hospitals = None
        self.ambulances = None
        self.doctors = None
        self.patients = None

    def crop_image_for_tile(self, instance, size, path_to_crop_image):
        """Crop images for Grid screen."""

        if not os.path.exists(os.path.join(self.directory,
                                           path_to_crop_image)):
            size = (int(size[0]), int(size[1]))
            path_to_origin_image = path_to_crop_image.replace('_tile_crop', '')
            crop_image(size, path_to_origin_image, path_to_crop_image)
        instance.source = path_to_crop_image

    def theme_picker_open(self):
        if not self.md_theme_picker:
            from kivymd.pickers import MDThemePicker
            self.md_theme_picker = MDThemePicker()
        self.md_theme_picker.open()

    def example_add_stack_floating_buttons(self):
        from kivymd.stackfloatingbuttons import MDStackFloatingButtons

        def set_my_language(instance_button):
            toast(instance_button.icon)

        if not self.create_stack_floating_buttons:
            screen = self.main_widget.ids.scr_mngr.get_screen('stack buttons')
            screen.add_widget(
                MDStackFloatingButtons(icon='lead-pencil',
                                       floating_data={
                                           'Python': 'language-python',
                                           'Php': 'language-php',
                                           'C++': 'language-cpp'
                                       },
                                       callback=set_my_language))
            self.create_stack_floating_buttons = True

    def set_accordion_list(self):
        from kivymd.accordionlistitem import MDAccordionListItem

        def callback(text):
            toast('{} to {}'.format(text, content.name_item))

        content = ContentForAnimCard(callback=callback)

        for name_contact in self.names_contacts:
            self.accordion_list.ids.anim_list.add_widget(
                MDAccordionListItem(content=content,
                                    icon='assets/kivymd_logo.png',
                                    title=name_contact))

    def set_chevron_back_screen(self):
        """Sets the return chevron to the previous screen in ToolBar."""

        self.main_widget.ids.toolbar.right_action_items = [[
            'dots-vertical', lambda x: self.root.toggle_nav_drawer()
        ]]

    def download_progress_hide(self, instance_progress, value):
        """Hides progress progress."""

        self.main_widget.ids.toolbar.right_action_items =\
            [['download',
              lambda x: self.download_progress_show(instance_progress)]]

    def download_progress_show(self, instance_progress):
        self.set_chevron_back_screen()
        instance_progress.open()
        instance_progress.animation_progress_from_fade()

    def show_example_download_file(self, interval):
        from kivymd.progressloader import MDProgressLoader

        def get_connect(host="8.8.8.8", port=53, timeout=3):
            import socket
            try:
                socket.setdefaulttimeout(timeout)
                socket.socket(socket.AF_INET, socket.SOCK_STREAM).connect(
                    (host, port))
                return True
            except (TimeoutError, ConnectionError, OSError):
                return False

        if get_connect():
            link = 'https://www.python.org/ftp/python/3.5.1/'\
                   'python-3.5.1-embed-win32.zip'
            progress = MDProgressLoader(
                url_on_image=link,
                path_to_file=os.path.join(self.directory, 'python-3.5.1.zip'),
                download_complete=self.download_complete,
                download_hide=self.download_progress_hide)
            progress.start(self.download_file.ids.box_flt)
        else:
            toast('Connect error!')

    def download_complete(self):
        self.set_chevron_back_screen()
        toast('Done')

    def file_manager_open(self):
        from kivymd.filemanager import MDFileManager
        from kivymd.dialog import MDDialog

        def open_file_manager(text_item, dialog):
            previous = False if text_item == 'List' else True
            self.manager = ModalView(size_hint=(1, 1), auto_dismiss=False)
            self.file_manager = MDFileManager(exit_manager=self.exit_manager,
                                              select_path=self.select_path,
                                              previous=previous)
            self.manager.add_widget(self.file_manager)
            self.file_manager.show(self.user_data_dir)
            self.manager_open = True
            self.manager.open()

        MDDialog(title='Title',
                 size_hint=(.8, .4),
                 text_button_ok='List',
                 text="Open manager with 'list' or 'previous' mode?",
                 text_button_cancel='Previous',
                 events_callback=open_file_manager).open()

    def select_path(self, path):
        """It will be called when you click on the file name
        or the catalog selection button.
        :type path: str;
        :param path: path to the selected directory or file;
        """

        self.exit_manager()
        toast(path)

    def exit_manager(self, *args):
        """Called when the user reaches the root of the directory tree."""

        self.manager.dismiss()
        self.manager_open = False
        self.set_chevron_menu()

    def set_chevron_menu(self):
        self.main_widget.ids.toolbar.left_action_items = [[
            'menu', lambda x: self.root.toggle_nav_drawer()
        ]]

    def events(self, instance, keyboard, keycode, text, modifiers):
        """Called when buttons are pressed on the mobile device."""

        if keyboard in (1001, 27):
            if self.manager_open:
                self.file_manager.back()
        return True

    def callback_for_menu_items(self, *args):
        toast(args[0])

    def add_cards(self, instance_grid_card):
        """Adds MDCardPost objects to the screen Cards
        when the screen is open."""

        from kivymd.cards import MDCardPost

        def callback(instance, value):
            if value is None:
                toast('Delete post %s' % str(instance))
            elif isinstance(value, int):
                toast('Set like in %d stars' % value)
            elif isinstance(value, str):
                toast('Repost with %s ' % value)
            elif isinstance(value, list):
                toast(value[1])

        if not self.cards_created:
            self.cards_created = True
            menu_items = [{
                'viewclass': 'MDMenuItem',
                'text': 'Example item %d' % i,
                'callback': self.callback_for_menu_items
            } for i in range(2)]
            buttons = ['facebook', 'vk', 'twitter']

            instance_grid_card.add_widget(
                MDCardPost(text_post='Card with text',
                           swipe=True,
                           callback=callback))
            instance_grid_card.add_widget(
                MDCardPost(
                    right_menu=menu_items,
                    swipe=True,
                    text_post='Card with a button to open the menu MDDropDown',
                    callback=callback))
            instance_grid_card.add_widget(
                MDCardPost(likes_stars=True,
                           callback=callback,
                           swipe=True,
                           text_post='Card with asterisks for voting.'))

            instance_grid_card.add_widget(
                MDCardPost(
                    source="./assets/kitten-1049129_1280.png",
                    tile_text="Little Baby",
                    tile_font_style="H5",
                    text_post="This is my favorite cat. He's only six months "
                    "old. He loves milk and steals sausages :) "
                    "And he likes to play in the garden.",
                    with_image=True,
                    swipe=True,
                    callback=callback,
                    buttons=buttons))

    def update_screen(self, instance):
        """Set new label on the screen UpdateSpinner."""
        def update_screen(interval):
            self.tick += 1
            if self.tick > 2:
                instance.update = True
                self.tick = 0
                self.update_spinner.ids.upd_lbl.text = "New string"
                Clock.unschedule(update_screen)

        Clock.schedule_interval(update_screen, 1)

    main_widget = None

    def set_popup_screen(self, content_popup):
        popup_menu = ContentForAnimCard()
        popup_menu.add_widget(Widget(size_hint_y=None, height=dp(150)))
        popup_screen = self.popup_screen.ids.popup_screen
        popup_screen.screen = popup_menu
        popup_screen.background_color = [.3, .3, .3, 1]
        popup_screen.max_height = content_popup.ids.image.height + dp(5)

    def show_user_example_animation_card(self):
        """Create and open instance MDUserAnimationCard
        for the screen UserCard."""

        from kivymd.useranimationcard import MDUserAnimationCard

        def main_back_callback():
            toast('Close card')

        if not self.user_card:
            self.user_card = MDUserAnimationCard(
                user_name="Lion Lion",
                path_to_avatar="./assets/guitar-1139397_1280.png",
                callback=main_back_callback)
            self.user_card.box_content.add_widget(ContentForAnimCard())
        self.user_card.open()

    def show_example_snackbar(self, snack_type):
        """Create and show instance Snackbar for the screen MySnackBar."""
        def callback(instance):
            toast(instance.text)

        def wait_interval(interval):
            self._interval += interval
            if self._interval > self.my_snackbar.duration:
                anim = Animation(y=dp(10), d=.2)
                anim.start(self.snackbar.ids.button)
                Clock.unschedule(wait_interval)
                self._interval = 0
                self.my_snackbar = None

        from kivymd.snackbars import Snackbar

        if snack_type == 'simple':
            Snackbar(text="This is a snackbar!").show()
        elif snack_type == 'button':
            Snackbar(text="This is a snackbar",
                     button_text="with a button!",
                     button_callback=callback).show()
        elif snack_type == 'verylong':
            Snackbar(text="This is a very very very very very very very "
                     "long snackbar!").show()
        elif snack_type == 'float':
            if not self.my_snackbar:
                self.my_snackbar = Snackbar(text="This is a snackbar!",
                                            button_text='Button',
                                            duration=3,
                                            button_callback=callback)
                self.my_snackbar.show()
                anim = Animation(y=dp(72), d=.2)
                anim.bind(on_complete=lambda *args: Clock.schedule_interval(
                    wait_interval, 0))
                anim.start(self.snackbar.ids.button)

    def show_example_input_dialog(self):
        """Creates an instance of the dialog box and displays it
        on the screen for the screen Dialogs."""
        def result(text_button, instance):
            toast(instance.text_field.text)

        if not self.input_dialog:
            from kivymd.dialog import MDInputDialog

            self.input_dialog = MDInputDialog(title='Title',
                                              hint_text='Hint text',
                                              size_hint=(.8, .4),
                                              text_button_ok='Ok',
                                              events_callback=result)
        self.input_dialog.open()

    def show_example_alert_dialog(self):
        if not self.alert_dialog:
            from kivymd.dialog import MDDialog

            self.alert_dialog = MDDialog(
                title='Title',
                size_hint=(.8, .4),
                text_button_ok='Ok',
                text="This is Alert dialog",
                events_callback=self.callback_for_menu_items)
        self.alert_dialog.open()

    def show_example_ok_cancel_dialog(self):
        if not self.ok_cancel_dialog:
            from kivymd.dialog import MDDialog

            self.ok_cancel_dialog = MDDialog(
                title='Title',
                size_hint=(.8, .4),
                text_button_ok='Ok',
                text="This is Ok Cancel dialog",
                text_button_cancel='Cancel',
                events_callback=self.callback_for_menu_items)
        self.ok_cancel_dialog.open()

    def show_example_long_dialog(self):
        if not self.long_dialog:
            from kivymd.dialog import MDDialog

            self.long_dialog = MDDialog(
                text="Lorem ipsum dolor sit amet, consectetur adipiscing "
                "elit, sed do eiusmod tempor incididunt ut labore et "
                "dolore magna aliqua. Ut enim ad minim veniam, quis "
                "nostrud exercitation ullamco laboris nisi ut aliquip "
                "ex ea commodo consequat. Duis aute irure dolor in "
                "reprehenderit in voluptate velit esse cillum dolore eu "
                "fugiat nulla pariatur. Excepteur sint occaecat "
                "cupidatat non proident, sunt in culpa qui officia "
                "deserunt mollit anim id est laborum.",
                title='Title',
                size_hint=(.8, .4),
                text_button_ok='Yes',
                events_callback=self.callback_for_menu_items)
        self.long_dialog.open()

    def get_time_picker_date(self, instance, time):
        """Get date for MDTimePicker from the screen Pickers."""

        self.pickers.ids.time_picker_label.text = str(time)
        self.previous_time = time

    def show_example_time_picker(self):
        """Show MDTimePicker from the screen Pickers."""

        from kivymd.pickers import MDTimePicker

        time_dialog = MDTimePicker()
        time_dialog.bind(time=self.get_time_picker_date)

        if self.pickers.ids.time_picker_use_previous_time.active:
            try:
                time_dialog.set_time(self.previous_time)
            except AttributeError:
                pass
        time_dialog.open()

    def set_previous_date(self, date_obj):
        """Set previous date for MDDatePicker from the screen Pickers."""

        self.previous_date = date_obj
        self.pickers.ids.date_picker_label.text = str(date_obj)

    def show_example_date_picker(self):
        """Show MDDatePicker from the screen Pickers."""

        from kivymd.pickers import MDDatePicker

        if self.pickers.ids.date_picker_use_previous_date.active:
            pd = self.previous_date
            try:
                MDDatePicker(self.set_previous_date, pd.year, pd.month,
                             pd.day).open()
            except AttributeError:
                MDDatePicker(self.set_previous_date).open()
        else:
            MDDatePicker(self.set_previous_date).open()

    def show_example_bottom_sheet(self):
        """Show menu from the screen BottomSheet."""

        from kivymd.bottomsheet import MDListBottomSheet

        if not self.bs_menu_1:
            self.bs_menu_1 = MDListBottomSheet()
            self.bs_menu_1.add_item(
                "Here's an item with text only", lambda x: self.
                callback_for_menu_items("Here's an item with text only"))
            self.bs_menu_1.add_item("Here's an item with an icon",
                                    lambda x: self.callback_for_menu_items(
                                        "Here's an item with an icon"),
                                    icon='clipboard-account')
            self.bs_menu_1.add_item(
                "Here's another!",
                lambda x: self.callback_for_menu_items("Here's another!"),
                icon='nfc')
        self.bs_menu_1.open()

    def show_example_grid_bottom_sheet(self):
        """Show menu from the screen BottomSheet."""

        if not self.bs_menu_2:
            from kivymd.bottomsheet import MDGridBottomSheet

            self.bs_menu_2 = MDGridBottomSheet()
            self.bs_menu_2.add_item(
                "Facebook",
                lambda x: self.callback_for_menu_items("Facebook"),
                icon_src='./assets/facebook-box.png')
            self.bs_menu_2.add_item(
                "YouTube",
                lambda x: self.callback_for_menu_items("YouTube"),
                icon_src='./assets/youtube-play.png')
            self.bs_menu_2.add_item(
                "Twitter",
                lambda x: self.callback_for_menu_items("Twitter"),
                icon_src='./assets/twitter.png')
            self.bs_menu_2.add_item(
                "Da Cloud",
                lambda x: self.callback_for_menu_items("Da Cloud"),
                icon_src='./assets/cloud-upload.png')
            self.bs_menu_2.add_item(
                "Camera",
                lambda x: self.callback_for_menu_items("Camera"),
                icon_src='./assets/camera.png')
        self.bs_menu_2.open()

    def set_title_toolbar(self, title):
        """Set string title in MDToolbar for the whole application."""

        self.main_widget.ids.toolbar.title = title

    def set_appbar(self):
        """Create MDBottomAppBar for the screen BottomAppBar."""

        from kivymd.toolbar import MDBottomAppBar

        def press_button(inctance):
            toast('Press Button')

        self.md_app_bar = MDBottomAppBar(
            md_bg_color=self.theme_cls.primary_color,
            left_action_items=[['menu', lambda x: x], ['clock', lambda x: x],
                               ['dots-vertical', lambda x: x]],
            anchor='right',
            callback=press_button)

    def move_item_menu(self, anchor):
        """Sets icons in MDBottomAppBar for the screen BottomAppBar."""

        md_app_bar = self.md_app_bar
        if md_app_bar.anchor != anchor:
            if len(md_app_bar.right_action_items):
                md_app_bar.left_action_items.append(
                    md_app_bar.right_action_items[0])
                md_app_bar.right_action_items = []
            else:
                left_action_items = md_app_bar.left_action_items
                action_items = left_action_items[0:2]
                md_app_bar.right_action_items = [left_action_items[-1]]
                md_app_bar.left_action_items = action_items

    def set_error_message(self, *args):
        """Checks text of TextField with type "on_error"
        for the screen TextFields."""

        text_field_error = args[0]
        if len(text_field_error.text) == 2:
            text_field_error.error = True
        else:
            text_field_error.error = False

    def set_list_md_icons(self, text='', search=False):
        """Builds a list of icons for the screen MDIcons."""
        def add_icon_item(name_icon):
            self.main_widget.ids.scr_mngr.get_screen(
                'md icons').ids.rv.data.append({
                    'viewclass':
                    'MDIconItemForMdIconsList',
                    'icon':
                    name_icon,
                    'text':
                    name_icon,
                    'callback':
                    self.callback_for_menu_items
                })

        self.main_widget.ids.scr_mngr.get_screen('md icons').ids.rv.data = []
        for name_icon in md_icons.keys():
            if search:
                if text in name_icon:
                    add_icon_item(name_icon)
            else:
                add_icon_item(name_icon)

    def set_menu_for_demo_apps(self):
        if not len(self.menu_for_demo_apps):
            for name_item in self.demo_apps_list:
                self.menu_for_demo_apps.append({
                    'viewclass':
                    'OneLineListItem',
                    'text':
                    name_item,
                    'on_release':
                    lambda x=name_item: self.show_demo_apps(x)
                })

    def show_demo_apps(self, name_item):
        name_item = name_item.lower()
        {
            'coffee menu': self.show_coffee_menu,
            'shop window': self.show_shop_window,
            'registration': self.show_registration_form_one,
            'fitness club': self.show_fitness_club
        }[name_item]()
        self.main_widget.ids.scr_mngr.current = name_item
        self.instance_menu_demo_apps.dismiss()

    # CUSTOM ========================================================================
    def button_connect(self, host, service, port, user, password):
        self.db = Database(host, service, port, user, password)
        self.db.connect()
        return

    def button_disconnect(self):
        if (self.db != None):
            self.db.disconnect()
            self.db = None
        else:
            pass
        return

    def dummy_push(self):
        if (self.db != None):
            self.db.init_tables(DB_SCHEMA)
            self.db.dummy_insert()
            self.db.dummy_select()
        else:
            pass
        return

    def dummy_pop(self):
        if (self.db != None):
            self.db.rollback_tables(DB_SCHEMA)
        else:
            pass
        return

    def remove_cards(self, tab):
        if (len(tab.children) != 0):
            tab.clear_widgets()
        else:
            pass
        return

    # IMPORTANT
    # Need to separate these methods into update and refresh for correct
    # content management, at this moment everytime a tab is accesed it
    # just adds again the content of the DB table over the old one!
    # FIX ASAP!
    def get_accidents(self, instance_grid_card):
        print(
            "ACCIDENTS --------------------------------------------------------------"
        )
        """Adds MDCardPost objects to the screen Cards
        when the screen is open."""

        from kivymd.cards import MDCardPost

        def callback(instance, value):
            if value is None:
                toast('Delete post %s' % str(instance))
            elif isinstance(value, int):
                toast('Set like in %d stars' % value)
            elif isinstance(value, str):
                toast('Repost with %s ' % value)
            elif isinstance(value, list):
                toast(value[1])

        menu_items = [{
            'viewclass': 'MDMenuItem',
            'text': 'Remove',
            'callback': self.callback_for_menu_items
        } for _ in range(1)]
        # Implement a method to check empty tables and change above!
        if (self.db != None):
            try:
                self.accidents = self.db.get_info("Accident", "*")
            except Exception as ex:
                print(ex)
                return
            for _ in range(len(self.accidents)):
                instance_grid_card.add_widget(
                    MDCardPost(
                        right_menu=menu_items,
                        swipe=True,
                        name_data=
                        f"County: {self.accidents[_][1]}\nID:    {self.accidents[_][0]}\nAdress: {self.accidents[_][2]}\nDetails: {self.accidents[_][3]}",
                        tile_font_style='H4',
                        path_to_avatar="assets/m_tab_accidents.png",
                        card_size=(Window.width, Window.height - 480),
                        text_post="",
                        callback=callback))
        else:
            pass  # Implement to add here a Label to say that the DB table is empty
        return

    def get_hospitals(self, instance_grid_card):
        print(
            "HOSPITALS --------------------------------------------------------------"
        )
        """Adds MDCardPost objects to the screen Cards
        when the screen is open."""

        from kivymd.cards import MDCardPost

        def callback(instance, value):
            if value is None:
                toast('Delete post %s' % str(instance))
            elif isinstance(value, int):
                toast('Set like in %d stars' % value)
            elif isinstance(value, str):
                toast('Repost with %s ' % value)
            elif isinstance(value, list):
                toast(value[1])

        menu_items = [{
            'viewclass': 'MDMenuItem',
            'text': 'Remove',
            'callback': self.callback_for_menu_items
        } for _ in range(1)]
        # Implement a method to check empty tables and change above!
        if (self.db != None):
            try:
                self.hospitals = self.db.get_info("Hospital", "*")
            except Exception as ex:
                print(ex)
                return
            for _ in range(len(self.hospitals)):
                instance_grid_card.add_widget(
                    MDCardPost(
                        right_menu=menu_items,
                        swipe=True,
                        name_data=
                        f"{self.hospitals[_][1]}\nID:    {self.hospitals[_][0]}\nAdress: {self.hospitals[_][2]}\n",
                        tile_font_style='H4',
                        path_to_avatar="assets/m_tab_hospitals.png",
                        card_size=(Window.width, Window.height - 480),
                        text_post="",
                        callback=callback))
        else:
            pass  # Implement to add here a Label to say that the DB table is empty
        return

    def get_ambulances(self, instance_grid_card):
        print(
            "AMBULANCES -------------------------------------------------------------"
        )
        """Adds MDCardPost objects to the screen Cards
        when the screen is open."""

        from kivymd.cards import MDCardPost

        def callback(instance, value):
            if value is None:
                toast('Delete post %s' % str(instance))
            elif isinstance(value, int):
                toast('Set like in %d stars' % value)
            elif isinstance(value, str):
                toast('Repost with %s ' % value)
            elif isinstance(value, list):
                toast(value[1])

        menu_items = [{
            'viewclass': 'MDMenuItem',
            'text': 'Remove',
            'callback': self.callback_for_menu_items
        } for _ in range(1)]
        # Implement a method to check empty tables and change above!
        if (self.db != None):
            try:
                self.ambulances = self.db.get_info("Ambulance", "*")
            except Exception as ex:
                print(ex)
                return
            for _ in range(len(self.ambulances)):
                # 706F6F
                # FFAA00
                if (self.ambulances[_][4] == 0):
                    s = "assets/m_tab_ambulances_0.png"
                elif (self.ambulances[_][4] == 1):
                    s = "assets/m_tab_ambulances_1.png"
                else:
                    s = "assets/m_tab_ambulances_1.png"
                instance_grid_card.add_widget(
                    MDCardPost(
                        right_menu=menu_items,
                        swipe=True,
                        name_data=
                        f"{self.ambulances[_][2]}\nID:    {self.ambulances[_][0]}",
                        tile_font_style='H4',
                        path_to_avatar=s,
                        card_size=(Window.width, Window.height - 480),
                        text_post=
                        f"Producer:          {self.ambulances[_][1]}\nCapacity:     {self.ambulances[_][3]} persons",
                        callback=callback))
        else:
            pass  # Implement to add here a Label to say that the DB table is empty
        return

    def get_doctors(self, instance_grid_card):
        print(
            "DOCTORS ----------------------------------------------------------------"
        )
        """Adds MDCardPost objects to the screen Cards
        when the screen is open."""

        from kivymd.cards import MDCardPost

        def callback(instance, value):
            if value is None:
                toast('Delete post %s' % str(instance))
            elif isinstance(value, int):
                toast('Set like in %d stars' % value)
            elif isinstance(value, str):
                toast('Repost with %s ' % value)
            elif isinstance(value, list):
                toast(value[1])

        menu_items = [{
            'viewclass': 'MDMenuItem',
            'text': 'Remove',
            'callback': self.callback_for_menu_items
        } for _ in range(1)]
        # Implement a method to check empty tables and change above!
        if (self.db != None):
            try:
                self.doctors = self.db.get_info("Doctor", "*")
            except Exception as ex:
                print(ex)
                return
            for _ in range(len(self.doctors)):
                if (self.doctors[_][3] == "M"):
                    s = "assets/m_tab_doctors_m.png"
                elif (self.doctors[_][3] == "F"):
                    s = "assets/m_tab_doctors_f.png"
                else:
                    s = "assets/m_tab_doctors_m.png"
                instance_grid_card.add_widget(
                    MDCardPost(
                        right_menu=menu_items,
                        swipe=True,
                        name_data=
                        f"{self.doctors[_][2]} {self.doctors[_][1]} ({self.doctors[_][3]})\nID:    {self.doctors[_][0]}",
                        tile_font_style='H4',
                        path_to_avatar=s,
                        card_size=(Window.width, Window.height - 480),
                        text_post=f"Birthday:          {self.doctors[_][4]}",
                        callback=callback))
        else:
            pass  # Implement to add here a Label to say that the DB table is empty
        return

    def get_patients(self, instance_grid_card):
        print(
            "PATIENTS ---------------------------------------------------------------"
        )
        """Adds MDCardPost objects to the screen Cards
        when the screen is open."""

        from kivymd.cards import MDCardPost

        def callback(instance, value):
            if value is None:
                toast('Delete post %s' % str(instance))
            elif isinstance(value, int):
                toast('Set like in %d stars' % value)
            elif isinstance(value, str):
                toast('Repost with %s ' % value)
            elif isinstance(value, list):
                toast(value[1])

        menu_items = [{
            'viewclass': 'MDMenuItem',
            'text': 'Remove',
            'callback': self.callback_for_menu_items
        } for _ in range(1)]
        # Implement a method to check empty tables and change above!
        if (self.db != None):
            try:
                self.patients = self.db.get_info("Patient", "*")
            except Exception as ex:
                print(ex)
                return
            for _ in range(len(self.patients)):
                if (self.patients[_][3] == "M"):
                    s = "assets/m_tab_pacients_m.png"
                elif (self.patients[_][3] == "F"):
                    s = "assets/m_tab_pacients_f.png"
                else:
                    s = "assets/m_tab_pacients_m.png"
                instance_grid_card.add_widget(
                    MDCardPost(
                        right_menu=menu_items,
                        swipe=True,
                        name_data=
                        f"{self.patients[_][2]} {self.patients[_][1]} ({self.patients[_][3]})\nID:    {self.patients[_][0]}",
                        tile_font_style='H4',
                        path_to_avatar=s,
                        card_size=(Window.width, Window.height - 480),
                        text_post=
                        f"Birthday:          {self.patients[_][4]}\nBlood Type:     {self.patients[_][5]}\nRH:                      {self.patients[_][6]}",
                        callback=callback))
        else:
            pass  # Implement to add here a Label to say that the DB table is empty
        return

    # CUSTOM ========================================================================

    def build(self):
        self.main_widget = Builder.load_file(
            os.path.join(os.path.dirname(__file__), "./Mergency.kv"))
        return self.main_widget

    def on_pause(self):
        return True

    def on_stop(self):
        pass

    def open_settings(self, *args):
        return False
示例#5
0
文件: main.py 项目: chenguuu/KivyMD
class KitchenSink(App, Screens):
    theme_cls = ThemeManager()
    theme_cls.primary_palette = "BlueGray"
    theme_cls.accent_palette = "Gray"
    previous_date = ObjectProperty()
    title = "Kitchen Sink"
    theme_cls.theme_style = "Dark"

    def __init__(self, **kwargs):
        super().__init__(**kwargs)

        self.menu_items = [{
            "viewclass": "MDMenuItem",
            "text": "Example item %d" % i,
            "callback": self.callback_for_menu_items,
        } for i in range(15)]
        self.Window = Window
        self.manager = None
        self.md_app_bar = None
        self.instance_menu_demo_apps = None
        self.md_theme_picker = None
        self.long_dialog = None
        self.input_dialog = None
        self.alert_dialog = None
        self.ok_cancel_dialog = None
        self.long_dialog = None
        self.dialog = None
        self.manager_open = False
        self.cards_created = False
        self.user_card = None
        self.bs_menu_1 = None
        self.bs_menu_2 = None
        self.my_snackbar = None
        self._interval = 0
        self.tick = 0
        self.x = 0
        self.y = 25
        self.create_stack_floating_buttons = False
        self.hex_primary_color = get_hex_from_color(
            self.theme_cls.primary_color)
        self.previous_text = (
            f"Welcome to the application [b][color={self.hex_primary_color}]"
            f"Kitchen Sink[/color][/b].\nTo see [b]"
            f"[color={self.hex_primary_color}]KivyMD[/color][/b] "
            f"examples, open the menu and select from the list the desired "
            f"example or")
        self.previous_text_end = (
            f"for show example apps\n\n"
            f"Author - [b][color={self.hex_primary_color}]"
            f"Andrés Rodríguez[/color][/b]\n"
            f"[u][b][color={self.hex_primary_color}]"
            f"[email protected][/color][/b][/u]\n\n"
            f"Author this Fork - [b][color={self.hex_primary_color}]"
            f"Ivanov Yuri[/color][/b]\n"
            f"[u][b][color={self.hex_primary_color}]"
            f"[email protected][/color][/b][u]")
        self.names_contacts = (
            "Alexandr Taylor",
            "Yuri Ivanov",
            "Robert Patric",
            "Bob Marley",
            "Magnus Carlsen",
            "Jon Romero",
            "Anna Bell",
            "Maxim Kramerer",
            "Sasha Gray",
            "Vladimir Ivanenko",
        )
        self.demo_apps_list = [
            "Shop Window",
            "Coffee Menu",
            "Fitness Club",
            "Registration",
            "Account Page",
        ]
        self.menu_for_demo_apps = []
        self.list_name_icons = list(md_icons.keys())[0:15]
        Window.bind(on_keyboard=self.events)
        crop_image(
            (Window.width, int(dp(Window.height * 35 // 100))),
            f"{self.directory}/assets/guitar-1139397_1280.png",
            f"{self.directory}/assets/guitar-1139397_1280_crop.png",
        )

    def set_list_for_refresh_layout(self):
        async def set_list_for_refresh_layout():
            names_icons_list = list(md_icons.keys())[self.x:self.y]
            for name_icon in names_icons_list:
                await asynckivy.sleep(0)
                self.data["Refresh Layout"]["object"].ids.box.add_widget(
                    ItemForListRefreshLayout(icon=name_icon, text=name_icon))
            self.data["Refresh Layout"][
                "object"].ids.refresh_layout.refresh_done()

        asynckivy.start(set_list_for_refresh_layout())

    def refresh_callback(self, *args):
        """A method that updates the state of your application
        while the spinner remains on the screen."""
        def refresh_callback(interval):
            self.data["Refresh Layout"]["object"].ids.box.clear_widgets()
            if self.x == 0:
                self.x, self.y = 25, 50
            else:
                self.x, self.y = 0, 25
            self.set_list_for_refresh_layout()
            self.tick = 0

        Clock.schedule_once(refresh_callback, 1)

    def build_tabs(self):
        for name_tab in self.list_name_icons:
            tab = Factory.MyTab(text=name_tab)
            self.data["Tabs"]["object"].ids.android_tabs.add_widget(tab)

    def switch_tabs_to_icon(self, istance_android_tabs):
        for i, instance_tab in enumerate(
                istance_android_tabs.ids.scrollview.children[0].children):
            istance_android_tabs.ids.scrollview.children[0].remove_widget(
                instance_tab)
            istance_android_tabs.add_widget(
                Factory.MyTab(text=self.list_name_icons[i]))

    def switch_tabs_to_text(self, istance_android_tabs):
        for instance_tab in istance_android_tabs.ids.scrollview.children[
                0].children:
            for k, v in md_icons.items():
                if v == instance_tab.text:
                    istance_android_tabs.ids.scrollview.children[
                        0].remove_widget(instance_tab)
                    istance_android_tabs.add_widget(
                        Factory.MyTab(
                            text=" ".join(k.split("-")).capitalize()))
                    break

    def crop_image_for_tile(self, instance, size, path_to_crop_image):
        """Crop images for Grid screen."""

        if not os.path.exists(os.path.join(self.directory,
                                           path_to_crop_image)):
            size = (int(size[0]), int(size[1]))
            path_to_origin_image = path_to_crop_image.replace("_tile_crop", "")
            crop_image(size, path_to_origin_image, path_to_crop_image)
        instance.source = path_to_crop_image

    def theme_picker_open(self):
        if not self.md_theme_picker:
            from kivymd.pickers import MDThemePicker

            self.md_theme_picker = MDThemePicker()
        self.md_theme_picker.open()

    def example_add_stack_floating_buttons(self):
        from kivymd.stackfloatingbuttons import MDStackFloatingButtons

        def set_my_language(instance_button):
            toast(instance_button.icon)

        if not self.create_stack_floating_buttons:
            screen = self.main_widget.ids.scr_mngr.get_screen("stack buttons")
            screen.add_widget(
                MDStackFloatingButtons(
                    icon="lead-pencil",
                    floating_data={
                        "Python": "language-python",
                        "Php": "language-php",
                        "C++": "language-cpp",
                    },
                    callback=set_my_language,
                ))
            self.create_stack_floating_buttons = True

    def set_accordion_list(self):
        from kivymd.accordionlistitem import MDAccordionListItem

        def callback(text):
            toast(f"{text} to {content.name_item}")

        content = ContentForAnimCard(callback=callback)

        for name_contact in self.names_contacts:
            self.data["Accordion List"]["object"].ids.anim_list.add_widget(
                MDAccordionListItem(
                    content=content,
                    icon="assets/kivy-logo-white-512.png",
                    title=name_contact,
                ))

    def set_chevron_back_screen(self):
        """Sets the return chevron to the previous screen in ToolBar."""

        self.main_widget.ids.toolbar.right_action_items = [[
            "dots-vertical", lambda x: self.root.toggle_nav_drawer()
        ]]

    def download_progress_hide(self, instance_progress, value):
        """Hides progress progress."""

        self.main_widget.ids.toolbar.right_action_items = [[
            "download",
            lambda x: self.download_progress_show(instance_progress),
        ]]

    def download_progress_show(self, instance_progress):
        self.set_chevron_back_screen()
        instance_progress.open()
        instance_progress.animation_progress_from_fade()

    def show_example_download_file(self, interval):
        from kivymd.progressloader import MDProgressLoader

        def get_connect(host="8.8.8.8", port=53, timeout=3):
            import socket

            try:
                socket.setdefaulttimeout(timeout)
                socket.socket(socket.AF_INET, socket.SOCK_STREAM).connect(
                    (host, port))
                return True
            except (TimeoutError, ConnectionError, OSError):
                return False

        if get_connect():
            link = ("https://www.python.org/ftp/python/3.5.1/"
                    "python-3.5.1-embed-win32.zip")
            progress = MDProgressLoader(
                url_on_image=link,
                path_to_file=os.path.join(self.directory, "python-3.5.1.zip"),
                download_complete=self.download_complete,
                download_hide=self.download_progress_hide,
            )
            progress.start(self.data["Download File"]["object"].ids.box_flt)
        else:
            toast("Connect error!")

    def download_complete(self):
        self.set_chevron_back_screen()
        toast("Done")

    def file_manager_open(self):
        from kivymd.filemanager import MDFileManager
        from kivymd.dialog import MDDialog

        def open_file_manager(text_item, dialog):
            previous = False if text_item == "List" else True
            self.manager = ModalView(size_hint=(1, 1), auto_dismiss=False)
            self.file_manager = MDFileManager(
                exit_manager=self.exit_manager,
                select_path=self.select_path,
                previous=previous,
            )
            self.manager.add_widget(self.file_manager)
            self.file_manager.show(self.user_data_dir)
            self.manager_open = True
            self.manager.open()

        MDDialog(
            title="Title",
            size_hint=(0.8, 0.4),
            text_button_ok="List",
            text="Open manager with 'list' or 'previous' mode?",
            text_button_cancel="Previous",
            events_callback=open_file_manager,
        ).open()

    def select_path(self, path):
        """It will be called when you click on the file name
        or the catalog selection button.
        :type path: str;
        :param path: path to the selected directory or file;
        """

        self.exit_manager()
        toast(path)

    def exit_manager(self, *args):
        """Called when the user reaches the root of the directory tree."""

        self.manager.dismiss()
        self.manager_open = False
        self.set_chevron_menu()

    def set_chevron_menu(self):
        self.main_widget.ids.toolbar.left_action_items = [[
            "menu", lambda x: self.root.toggle_nav_drawer()
        ]]

    def events(self, instance, keyboard, keycode, text, modifiers):
        """Called when buttons are pressed on the mobile device."""

        if keyboard in (1001, 27):
            if self.manager_open:
                self.file_manager.back()
        return True

    def callback_for_menu_items(self, *args):
        toast(args[0])

    def add_cards(self, instance_grid_card):
        """Adds MDCardPost objects to the screen Cards
        when the screen is open."""

        from kivymd.cards import MDCardPost

        def callback(instance, value):
            if value is None:
                toast("Delete post %s" % str(instance))
            elif isinstance(value, int):
                toast("Set like in %d stars" % value)
            elif isinstance(value, str):
                toast("Repost with %s " % value)
            elif isinstance(value, list):
                toast(value[1])

        if not self.cards_created:
            self.cards_created = True
            menu_items = [{
                "viewclass": "MDMenuItem",
                "text": "Example item %d" % i,
                "callback": self.callback_for_menu_items,
            } for i in range(2)]
            buttons = ["facebook", "vk", "twitter"]

            instance_grid_card.add_widget(
                MDCardPost(text_post="Card with text",
                           swipe=True,
                           callback=callback))
            instance_grid_card.add_widget(
                MDCardPost(
                    right_menu=menu_items,
                    swipe=True,
                    text_post="Card with a button to open the menu MDDropDown",
                    callback=callback,
                ))
            instance_grid_card.add_widget(
                MDCardPost(
                    likes_stars=True,
                    callback=callback,
                    swipe=True,
                    text_post="Card with asterisks for voting.",
                ))

            instance_grid_card.add_widget(
                MDCardPost(
                    source="./assets/kitten-1049129_1280.png",
                    tile_text="Little Baby",
                    tile_font_style="H5",
                    text_post="This is my favorite cat. He's only six months "
                    "old. He loves milk and steals sausages :) "
                    "And he likes to play in the garden.",
                    with_image=True,
                    swipe=True,
                    callback=callback,
                    buttons=buttons,
                ))

    def update_screen(self, instance):
        """Set new label on the screen UpdateSpinner."""
        def update_screen(interval):
            self.tick += 1
            if self.tick > 2:
                instance.update = True
                self.tick = 0
                self.data["Update Screen Widget"][
                    "object"].ids.upd_lbl.text = "New string"
                Clock.unschedule(update_screen)

        Clock.schedule_interval(update_screen, 1)

    main_widget = None

    def build(self):
        self.main_widget = Builder.load_string(main_widget_kv)
        return self.main_widget

    def set_popup_screen(self, content_popup):
        popup_menu = ContentForAnimCard()
        popup_menu.add_widget(Widget(size_hint_y=None, height=dp(150)))
        popup_screen = self.data["Popup Screen"]["object"].ids.popup_screen
        popup_screen.screen = popup_menu
        popup_screen.background_color = [0.3, 0.3, 0.3, 1]
        popup_screen.max_height = content_popup.ids.image.height + dp(5)

    def show_user_example_animation_card(self):
        """Create and open instance MDUserAnimationCard
        for the screen UserCard."""

        from kivymd.useranimationcard import MDUserAnimationCard

        def main_back_callback():
            toast("Close card")

        if not self.user_card:
            self.user_card = MDUserAnimationCard(
                user_name="Lion Lion",
                path_to_avatar="./assets/guitar-1139397_1280.png",
                callback=main_back_callback,
            )
            self.user_card.box_content.add_widget(ContentForAnimCard())
        self.user_card.open()

    def show_example_snackbar(self, snack_type):
        """Create and show instance Snackbar for the screen MySnackBar."""
        def callback(instance):
            toast(instance.text)

        def wait_interval(interval):
            self._interval += interval
            if self._interval > self.my_snackbar.duration:
                anim = Animation(y=dp(10), d=0.2)
                anim.start(self.data["Snackbars"]["object"].ids.button)
                Clock.unschedule(wait_interval)
                self._interval = 0
                self.my_snackbar = None

        from kivymd.snackbars import Snackbar

        if snack_type == "simple":
            Snackbar(text="This is a snackbar!").show()
        elif snack_type == "button":
            Snackbar(
                text="This is a snackbar",
                button_text="with a button!",
                button_callback=callback,
            ).show()
        elif snack_type == "verylong":
            Snackbar(text="This is a very very very very very very very "
                     "long snackbar!").show()
        elif snack_type == "float":
            if not self.my_snackbar:
                self.my_snackbar = Snackbar(
                    text="This is a snackbar!",
                    button_text="Button",
                    duration=3,
                    button_callback=callback,
                )
                self.my_snackbar.show()
                anim = Animation(y=dp(72), d=0.2)
                anim.bind(on_complete=lambda *args: Clock.schedule_interval(
                    wait_interval, 0))
                anim.start(self.data["Snackbars"]["object"].ids.button)

    def show_example_input_dialog(self):
        """Creates an instance of the dialog box and displays it
        on the screen for the screen Dialogs."""
        def result(text_button, instance):
            toast(instance.text_field.text)

        if not self.input_dialog:
            from kivymd.dialog import MDInputDialog

            self.input_dialog = MDInputDialog(
                title="Title",
                hint_text="Hint text",
                size_hint=(0.8, 0.4),
                text_button_ok="Ok",
                events_callback=result,
            )
        self.input_dialog.open()

    def show_example_alert_dialog(self):
        if not self.alert_dialog:
            from kivymd.dialog import MDDialog

            self.alert_dialog = MDDialog(
                title="Title",
                size_hint=(0.8, 0.4),
                text_button_ok="Ok",
                text="This is Alert dialog",
                events_callback=self.callback_for_menu_items,
            )
        self.alert_dialog.open()

    def show_example_ok_cancel_dialog(self):
        if not self.ok_cancel_dialog:
            from kivymd.dialog import MDDialog

            self.ok_cancel_dialog = MDDialog(
                title="Title",
                size_hint=(0.8, 0.4),
                text_button_ok="Ok",
                text="This is Ok Cancel dialog",
                text_button_cancel="Cancel",
                events_callback=self.callback_for_menu_items,
            )
        self.ok_cancel_dialog.open()

    def show_example_long_dialog(self):
        if not self.long_dialog:
            from kivymd.dialog import MDDialog

            self.long_dialog = MDDialog(
                text="Lorem ipsum dolor sit amet, consectetur adipiscing "
                "elit, sed do eiusmod tempor incididunt ut labore et "
                "dolore magna aliqua. Ut enim ad minim veniam, quis "
                "nostrud exercitation ullamco laboris nisi ut aliquip "
                "ex ea commodo consequat. Duis aute irure dolor in "
                "reprehenderit in voluptate velit esse cillum dolore eu "
                "fugiat nulla pariatur. Excepteur sint occaecat "
                "cupidatat non proident, sunt in culpa qui officia "
                "deserunt mollit anim id est laborum.",
                title="Title",
                size_hint=(0.8, 0.4),
                text_button_ok="Yes",
                events_callback=self.callback_for_menu_items,
            )
        self.long_dialog.open()

    def get_time_picker_date(self, instance, time):
        """Get date for MDTimePicker from the screen Pickers."""

        self.data["Pickers"]["object"].ids.time_picker_label.text = str(time)
        self.previous_time = time

    def show_example_time_picker(self):
        """Show MDTimePicker from the screen Pickers."""

        from kivymd.pickers import MDTimePicker

        time_dialog = MDTimePicker()
        time_dialog.bind(time=self.get_time_picker_date)

        if self.data["Pickers"][
                "object"].ids.time_picker_use_previous_time.active:
            try:
                time_dialog.set_time(self.previous_time)
            except AttributeError:
                pass
        time_dialog.open()

    def set_previous_date(self, date_obj):
        """Set previous date for MDDatePicker from the screen Pickers."""

        self.previous_date = date_obj
        self.data["Pickers"]["object"].ids.date_picker_label.text = str(
            date_obj)

    def show_example_date_picker(self):
        """Show MDDatePicker from the screen Pickers."""

        from kivymd.pickers import MDDatePicker

        if self.data["Pickers"][
                "object"].ids.date_picker_use_previous_date.active:
            pd = self.previous_date
            try:
                MDDatePicker(self.set_previous_date, pd.year, pd.month,
                             pd.day).open()
            except AttributeError:
                MDDatePicker(self.set_previous_date).open()
        else:
            MDDatePicker(self.set_previous_date).open()

    def show_example_bottom_sheet(self):
        """Show menu from the screen BottomSheet."""

        from kivymd.bottomsheet import MDListBottomSheet

        if not self.bs_menu_1:
            self.bs_menu_1 = MDListBottomSheet()
            self.bs_menu_1.add_item(
                "Here's an item with text only",
                lambda x: self.callback_for_menu_items(
                    "Here's an item with text only"),
            )
            self.bs_menu_1.add_item(
                "Here's an item with an icon",
                lambda x: self.callback_for_menu_items(
                    "Here's an item with an icon"),
                icon="clipboard-account",
            )
            self.bs_menu_1.add_item(
                "Here's another!",
                lambda x: self.callback_for_menu_items("Here's another!"),
                icon="nfc",
            )
        self.bs_menu_1.open()

    def show_example_grid_bottom_sheet(self):
        """Show menu from the screen BottomSheet."""

        if not self.bs_menu_2:
            from kivymd.bottomsheet import MDGridBottomSheet

            self.bs_menu_2 = MDGridBottomSheet()
            self.bs_menu_2.add_item(
                "Facebook",
                lambda x: self.callback_for_menu_items("Facebook"),
                icon_src="./assets/facebook-box.png",
            )
            self.bs_menu_2.add_item(
                "YouTube",
                lambda x: self.callback_for_menu_items("YouTube"),
                icon_src="./assets/youtube-play.png",
            )
            self.bs_menu_2.add_item(
                "Twitter",
                lambda x: self.callback_for_menu_items("Twitter"),
                icon_src="./assets/twitter.png",
            )
            self.bs_menu_2.add_item(
                "Da Cloud",
                lambda x: self.callback_for_menu_items("Da Cloud"),
                icon_src="./assets/cloud-upload.png",
            )
            self.bs_menu_2.add_item(
                "Camera",
                lambda x: self.callback_for_menu_items("Camera"),
                icon_src="./assets/camera.png",
            )
        self.bs_menu_2.open()

    def set_title_toolbar(self, title):
        """Set string title in MDToolbar for the whole application."""

        self.main_widget.ids.toolbar.title = title

    def set_appbar(self):
        """Create MDBottomAppBar for the screen BottomAppBar."""

        from kivymd.toolbar import MDBottomAppBar

        def press_button(inctance):
            toast("Press Button")

        self.md_app_bar = MDBottomAppBar(
            md_bg_color=self.theme_cls.primary_color,
            left_action_items=[
                ["menu", lambda x: x],
                ["clock", lambda x: x],
                ["dots-vertical", lambda x: x],
            ],
            anchor="right",
            callback=press_button,
        )

    def move_item_menu(self, anchor):
        """Sets icons in MDBottomAppBar for the screen BottomAppBar."""

        md_app_bar = self.md_app_bar
        if md_app_bar.anchor != anchor:
            if len(md_app_bar.right_action_items):
                md_app_bar.left_action_items.append(
                    md_app_bar.right_action_items[0])
                md_app_bar.right_action_items = []
            else:
                left_action_items = md_app_bar.left_action_items
                action_items = left_action_items[0:2]
                md_app_bar.right_action_items = [left_action_items[-1]]
                md_app_bar.left_action_items = action_items

    def show_password(self, field, button):
        """
        Called when you press the right button in the password field
        for the screen TextFields.

        instance_field: kivy.uix.textinput.TextInput;
        instance_button: kivymd.button.MDIconButton;

        """

        # Show or hide text of password, set focus field
        # and set icon of right button.
        field.password = not field.password
        field.focus = True
        button.icon = "eye" if button.icon == "eye-off" else "eye-off"

    def set_error_message(self, *args):
        """Checks text of TextField with type "on_error"
        for the screen TextFields."""

        text_field_error = args[0]
        if len(text_field_error.text) == 2:
            text_field_error.error = True
        else:
            text_field_error.error = False

    def set_list_md_icons(self, text="", search=False):
        """Builds a list of icons for the screen MDIcons."""
        def add_icon_item(name_icon):
            self.main_widget.ids.scr_mngr.get_screen(
                "md icons").ids.rv.data.append({
                    "viewclass":
                    "MDIconItemForMdIconsList",
                    "icon":
                    name_icon,
                    "text":
                    name_icon,
                    "callback":
                    self.callback_for_menu_items,
                })

        self.main_widget.ids.scr_mngr.get_screen("md icons").ids.rv.data = []
        for name_icon in md_icons.keys():
            if search:
                if text in name_icon:
                    add_icon_item(name_icon)
            else:
                add_icon_item(name_icon)

    def set_menu_for_demo_apps(self):
        if not len(self.menu_for_demo_apps):
            for name_item in self.demo_apps_list:
                self.menu_for_demo_apps.append({
                    "viewclass":
                    "OneLineListItem",
                    "text":
                    name_item,
                    "on_release":
                    lambda x=name_item: self.show_demo_apps(x),
                })

    def show_demo_apps(self, name_item):
        self.show_screens_demo(name_item)
        self.main_widget.ids.scr_mngr.current = name_item.lower()
        self.instance_menu_demo_apps.dismiss()

    def on_pause(self):
        return True

    def on_stop(self):
        pass

    def open_settings(self, *args):
        return False
示例#6
0
class Exif_view(App):
    theme_cls = ThemeManager()
    previous_date = ObjectProperty()
    title = "Exif_Viewer"

    menu_items = [
        {
            'viewclass': 'MDMenuItem',
            'text': 'Example item'
        },
        {
            'viewclass': 'MDMenuItem',
            'text': 'Example item'
        },
        {
            'viewclass': 'MDMenuItem',
            'text': 'Example item'
        },
        {
            'viewclass': 'MDMenuItem',
            'text': 'Example item'
        },
        {
            'viewclass': 'MDMenuItem',
            'text': 'Example item'
        },
        {
            'viewclass': 'MDMenuItem',
            'text': 'Example item'
        },
        {
            'viewclass': 'MDMenuItem',
            'text': 'Example item'
        },
    ]

    def build(self):
        main_widget = Builder.load_string(main_widget_kv)
        self.theme_cls.accent_palette = 'Indigo'
        self.manager = None
        self.state = State.State()
        self.im = self.state.current_img
        keyboard = Window.request_keyboard(self._keyboard_released, self.root)
        keyboard.bind(on_key_down=self._keyboard_on_key_down,
                      on_key_up=self._keyboard_released)

        self.bottom_navigation_remove_mobile(main_widget)
        toast("Click on the + botton to open a image")
        return main_widget

    def _keyboard_released(self, window, keycode):
        pass

    def _keyboard_on_key_down(self, window, keycode, text, super):
        if keycode[1] == 'r':
            self.root.ids['imagde'].rota()
        if keycode[1] == 'left':
            self.state.roll(1)
            self.change_image(self.state.current_img.path)
        if keycode[1] == 'right':
            self.state.roll(-1)
            self.change_image(self.state.current_img.path)

    def bottom_navigation_remove_mobile(self, widget):
        # Removes some items from bottom-navigation demo when on mobile
        if DEVICE_TYPE == 'mobile':
            widget.ids.bottom_navigation_demo.remove_widget(
                widget.ids.bottom_navigation_desktop_2)
        if DEVICE_TYPE == 'mobile' or DEVICE_TYPE == 'tablet':
            widget.ids.bottom_navigation_demo.remove_widget(
                widget.ids.bottom_navigation_desktop_1)

    def change_image(self, path):
        self.state.change_current(path)
        self.root.ids['image'].source = self.state.current_img.path
        self.root.ids['imagde'].source = self.state.current_img.path
        self.state.must_update = True
        self.fill_exif()
        toast(path)

    def file_manager_open(self):
        import os
        if not self.manager:
            self.manager = ModalView(size_hint=(1, 1), auto_dismiss=False)
            self.file_manager = MDFileManager(exit_manager=self.exit_manager,
                                              select_path=self.select_path,
                                              ext=['.jpg', '.jpeg'])
            self.manager.add_widget(self.file_manager)
            self.file_manager.show(os.getcwd())  # output manager to the screen
        self.state.cwd = self.file_manager.current_path + "/"
        self.manager_open = True
        self.manager.open()

    def select_path(self, path):
        self.change_image(path)
        self.exit_manager()
        self.root.ids.scr_mngr.current = 'data'

    def fill_exif(self):
        img = self.state.current_img
        dt = img.exif
        self.root.ids['ml'].clear_widgets()
        for v in dt:
            self.root.ids['ml'].add_widget(
                kivymd.list.ThreeLineRightIconListItem(text=v,
                                                       secondary_text=str(
                                                           dt[v])))

    def exit_manager(self, *args):
        """Called when the user reaches the root of the directory tree."""

        self.manager.dismiss()
        self.manager_open = False

    def events(self, instance, keyboard, keycode, text, modifiers):
        """Called when buttons are pressed on the mobile device.."""

        if keyboard in (1001, 27):
            if self.manager_open:
                self.file_manager.back()
        return True

    def set_error_message(self, *args):
        if len(self.root.ids.text_field_error.text) == 2:
            self.root.ids.text_field_error.error = True
        else:
            self.root.ids.text_field_error.error = False

    def on_pause(self):
        return True

    def on_stop(self):
        pass