概括 KivyMD 图像列表示例

Question

https://kivymd.readthedocs.io/en/latest/components/image-list/#smarttilewithstar

您如何概括 kiymd doc image-list 示例，使图像显示逻辑在 kv 文件之外？

这是我的尝试，但它仅在第一行显示所有图像（并且将左侧的第一张图像留空）。谢谢。

from kivymd.app import MDApp
from kivy.lang import Builder
from kivy.uix.screenmanager import ScreenManager, Screen
from kivymd.uix.imagelist import SmartTile
from kivymd.uix.gridlayout import MDGridLayout

img = ["00.jpg", "03.jpg", "13.jpg", "15.jpg", "24.jpg", "28.jpg", "29.jpg", "33.jpg", "34.jpg"]

Builder.load_string('''

<MyTile@SmartTile>
    size_hint_y: None
    height: "240dp"

<CatScreen>:
    
    ScrollView:
        id: scroll

        MDGridLayout:
            id: grid
            cols: 3
            adaptive_height: True
            padding: dp(4), dp(4)
            spacing: dp(4)

            MyTile:
''')


class CatScreen(Screen):

    def __init__(self, **kwargs):
        super().__init__(**kwargs)
    
    def display_image(self):
        for im in img:
            self.ids.grid.add_widget(SmartTile(source = im))
        return self


class CatApp(MDApp):

    def __init__(self, **kwargs):
        super().__init__(**kwargs)
    
    def build(self):
        self.cs = CatScreen()
        return self.cs.display_image()

CatApp().run()

Answer 1

import os

from kivy.factory import Factory as F
from kivy.lang import Builder
from kivymd.app import MDApp
from kivy.uix.screenmanager import Screen
from kivymd.uix.imagelist import SmartTile

######################################
# this part of the code is to take images from my folder
img = []
PATH = "/root/Pictures" # source folder
for i in os.listdir(PATH):
    if ".png" in i:
        img.append(PATH + "/" + i)
######################################

Builder.load_string('''

<MyTile@SmartTile>:
    size_hint_y: None
    height: "240dp"

<CatScreen>:
    
    ScrollView:
        id: scroll

        MDGridLayout:
            id: grid
            cols: 3
            adaptive_height: True
            padding: dp(4), dp(4)
            spacing: dp(4)

            MyTile:
''')


class CatScreen(Screen):

    def __init__(self, **kwargs):
        super().__init__(**kwargs)
    
    def display_image(self):
        for im in img:
            self.ids.grid.add_widget(F.MyTile(source=im))
        return self


class CatApp(MDApp):

    def __init__(self, **kwargs):
        super().__init__(**kwargs)
    
    def build(self):
        self.cs = CatScreen()
        return self.cs.display_image()

CatApp().run()