python - 滚动查看多个输入到一个变量

Question

我正在使用 Kivy 在 python 中构建照片查看器应用程序。简要介绍一下，它接受用户的输入并随机显示来自我电脑中特定路径的图像。例如，用户输入 10，然后它会走 PC 中的特定路径并随机选择该路径中的图像并将它们显示在另一个屏幕上。

代码：

class MainScreen(Screen):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.image_path = os.path.join("C:\\Users\\harsh\\PycharmProjects\\pythonProject1")  # Add your path here
        self.layout = RelativeLayout()
        self.input_bar = TextInput(multiline=False, size_hint=(0.4, 0.1), pos_hint={"center_x": .5, "center_y": .5},
                                   hint_text="How many sections you have", input_type="number")
        self.input_bar.bind(on_text_validate=self.get_images)
        self.layout.add_widget(self.input_bar)
        self.add_widget(self.layout)

        # inst refers to the input bar object

    def get_images(self, inst):
        MDApp.get_running_app().images_num = int(inst.text)
        for fname in os.scandir(self.image_path):
            # Skip any directories
            if fname.is_dir():
                continue

            # Filter for images
            if fname.path.endswith(".jpg") or fname.path.endswith(".png"):
                MDApp.get_running_app().images_paths.append(fname.path)

        # This line needs to be here, because if you add the screen in the build method, it wont add the images
        MDApp.get_running_app().screen_manager.add_widget(ImageScreen(name="Image Display Page"))

        # Changes screen to image display screen
        MDApp.get_running_app().screen_manager.current = "Image Display Page"



class ImageScreen(Screen):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.layout = GridLayout(cols=1, spacing=10)
        self.random_image_number = MDApp.get_running_app().images_num
        self.images_paths = MDApp.get_running_app().images_paths
        self.random_paths = random.choices(self.images_paths, k=self.random_image_number)

        for path in self.random_paths:            
            sv = ScrollView()
            img = Image(source=path)

            self.layout.add_widget(img)

        self.add_widget(self.layout)

class DemoApp(MDApp):
    images_paths = ListProperty([])
    images_num = NumericProperty(0)

    def build(self):
        self.theme_cls.primary_palette = 'Green'
        self.theme_cls.primary_hue = 'A700'
        self.theme_cls.theme_style = 'Dark'
        self.title = "Wise Time"       
        self.screen_manager = ScreenManager()
        self.screen_manager.add_widget(MainScreen(name="main"))
        self.screen_manager.add_widget(ImageScreen(name="image"))
        return self.screen_manager



DemoApp().run()

帮我实现可滚动功能。我想要实现的是能够滚动适合窗口大小的所有图像。我已经尝试列出图像显然它不起作用。

标签： pythonfile-uploadkivyscrollviewkivymd