如何在 kivy 中制作画廊？

如何解决如何在 kivy 中制作画廊？

我想要在 kivy 中的这个画廊 how to make gallery view 如何添加这个 kivy 然后在画廊中显示许多显示和轮播？ How to make an image and display it on the next page 任何人都可以帮忙吗？

class gallery(Screen):
        pass 

.kv

<MyTile@SmartTile>:
        size_hint_y: None
        height: "240dp"
    
<gallery>
    ScrollView:
        MDGridLayout:
            cols: 3
            row_default_height: (self.width - self.cols*self.spacing[0]) / self.cols
            row_force_default: True
            adaptive_height: True
            padding: dp(4),dp(4)
            spacing: dp(4)
            MyTile:
                source:'*.jpg'

https://i.stack.imgur.com/loupw.png

这里有问题..

[ WARN:1] global C:\Users\runneradmin\AppData\Local\Temp\pip-req-build-vi271kac\opencv\modules\videoio\src\cap_msmf.cpp (376) `anonymous-namespace'::SourceReaderCB::OnReadSample videoio(MSMF): OnReadSample() is called with error status: -1072873821
[ WARN:1] global C:\Users\runneradmin\AppData\Local\Temp\pip-req-build-vi271kac\opencv\modules\videoio\src\cap_msmf.cpp (388) `anonymous-namespace'::SourceReaderCB::OnReadSample videoio(MSMF): async ReadSample() call is Failed with error status: -1072873821
[INFO   ] [Loader      ] using a thread pool of 2 workers
[ERROR  ] [AsyncImage  ] Not found <*.jpg>
[INFO   ] [Base        ] Start application main loop
[ WARN:0] global C:\Users\runneradmin\AppData\Local\Temp\pip-req-build-vi271kac\opencv\modules\videoio\src\cap_msmf.cpp (438) `anonymous-namespace'::SourceReaderCB::~SourceReaderCB terminating async callback

这是图库，但这里没有显示任何图片.. 任何人都可以告诉此代码代码中有什么问题吗？

解决方法

我画了一个画廊的例子，我想这就是你想要的。

from kivymd.app import MDApp

from kivy.metrics import dp
from kivy.lang.builder import Builder
from kivy.uix.boxlayout import BoxLayout

import os

KV = """
<ImageButton@ButtonBehavior+FitImage>

<ImageManager>
    path: ""
    orientation: "vertical"
    size_hint_y: None
    height: root.height
    padding: dp(10)

    ImageButton:
        source: root.path
        
BoxLayout:
    RecycleView:
        id: rv
        key_viewclass: "viewclass"
        RecycleGridLayout:
            padding: dp(2)
            cols: 3
            default_size: None,dp(48)
            default_size_hint: 1,None
            size_hint_y: None
            height: self.minimum_height
"""


class ImageManager(BoxLayout):
    pass


class GalleryApp(MDApp):
    def __init__(self,**kwargs):
        super().__init__(**kwargs)

        self.manager_list = []
        self.dir = os.getcwd()
        self.available_image_format = ['.png','.jpg','.jpeg','.bmp']  # etc

    def build(self):
        return Builder.load_string(KV)

    def on_start(self):
        self.load_images()

    def load_images(self):
        if not self.manager_list:
            for image in os.listdir(self.dir):
                target_filename,target_file_extension = os.path.splitext(image)
                if target_file_extension in self.available_image_format:
                    path_to_image = os.path.join(self.dir,image)
                    self.manager_list.append(
                        {
                            "viewclass": "ImageManager","path": path_to_image,"height": dp(200),}
                    )
            self.root.ids.rv.data = self.manager_list


GalleryApp().run()