python - 无法修改 MDSelectionList 属性

Question

我在带有MDNavigationRail 的选项卡内使用 MDSelectionList在屏幕之间切换，但是，当我尝试自定义 MDSelectionList 时，没有任何视觉更改适用。我认为这可能是小部件本身的问题，但后来我将它分开并且属性更改有效。如何使更改应用于选择列表？（我正在使用来自 master 分支的 kivymd 0.104.2.dev0）我的代码：

from kivy.config import Config

Config.set('graphics', 'width', '850')
Config.set('graphics', 'height', '530')
Config.set('graphics', 'minimum_width', '850')
Config.set('graphics', 'minimum_height', '530')
from kivy.lang import Builder
from kivymd.uix.card import MDCard
from kivymd.uix.tab import MDTabsBase
from kivymd.app import MDApp


class SettingsTab(MDCard, MDTabsBase):
    pass

class Example(MDApp):

    def __init__(self, **kwargs):
        super(Example, self).__init__(**kwargs)
        self.kv = Builder.load_string('''
#:kivy 2.0.0
<SettingsTab>:
    orientation: "vertical"
    size_hint: .95, .95
    pos_hint: {"center_x": .5, "center_y": .5}
    border_radius: 5
    radius: [5]
    elevation: 20
BoxLayout:
    MDNavigationRail:
        color_active: app.theme_cls.primary_color
        MDNavigationRailItem:
            icon: "list-status"
            on_release:
                screens.current = "downloads_screen"
        MDNavigationRailItem:
            icon: "cog"
            on_release:
                screens.current = "settings"
        MDNavigationRailItem:
            icon: "information"
            on_release:
                screens.current = "activity_log"

    ScreenManager:
        id: screens
        Screen:
            name: "downloads_screen"
        Screen:
            name: "activity_log"
        Screen:
            name: "settings"
            MDTabs:
                SettingsTab:
                    title: "DOWNLOAD"
                    MDSelectionList:
                        overlay_color: 1, 0, 0, .5
                        icon_bg_color: 0, 0, 0, 0
                        icon_check_color: 0, 0, 0, 0
                        OneLineIconListItem:
                            text: "Just me!"
                            IconLeftWidget:
                                icon: "circle-outline"
                                pos_hint: {"center_x": .5, "center_y": .5}
                        OneLineIconListItem:
                            text: "Just me!"
                            IconLeftWidget:
                                icon: "circle-outline"
                        OneLineIconListItem:
                            text: "Just me!"
                            IconLeftWidget:
                                icon: "circle-outline"
                        OneLineIconListItem:
                            text: "Just me!"
                            IconLeftWidget:
                                icon: "circle-outline"
                SettingsTab:
                    title: "COLOR"
                SettingsTab:
                    title: "INFO"''')

    def build(self):
        self.theme_cls.theme_style = "Dark"
        self.theme_cls.primary_palette = "Blue"
        self.theme_cls.accent_palette = "Teal"
        return self.kv


if __name__ == '__main__':
    Example().run()

标签： pythonpython-3.xkivykivymd

Answer 1

尝试这样的事情。

from kivy.lang import Builder

from kivymd.uix.card import MDCard
from kivymd.uix.tab import MDTabsBase
from kivymd.app import MDApp
    
kv = ("""
<Check@ILeftBodyTouch+MDCheckbox>:
    group: 'group'
    size_hint: None, None
    size: dp(48), dp(48)
    
<SettingsTab>:
    orientation: "vertical"
    size_hint: .95, .95
    pos_hint: {"center_x": .5, "center_y": .5}
    border_radius: 5
    radius: [5,]
    elevation: 20

BoxLayout:
    MDNavigationRail:
        color_active: app.theme_cls.primary_color
        MDNavigationRailItem:
            icon: "cog"
            on_release:
                screens.current = "settings"

    ScreenManager:
        id: screens
        Screen:
            name: "settings"
            MDTabs:
                SettingsTab:
                    title: "DOWNLOAD"
                    MDList:
                        spacing: 10
                        OneLineAvatarIconListItem:
                            text: "Just me!"
                            Check:
                            
                        OneLineAvatarIconListItem:
                            text: "Just me!"
                            Check:

                        OneLineAvatarIconListItem:
                            text: "Just me!"
                            Check:
""")


class SettingsTab(MDCard, MDTabsBase):
    pass
    
    
class Example(MDApp):

    def __init__(self, **kwargs):
        super().__init__(**kwargs)
        self.kv = Builder.load_string(kv)

    def build(self):
        return self.kv


if __name__ == '__main__':
    Example().run()