Kivymd 自定义列表对话框。无法在 mddialog 中插入可变列表

Question

我正在尝试在 kivyMD 的自定义对话框中添加一个可更改的列表。问题是当我调用 self.adding() 时，列表出现在我的 FloatLayout 中，而不是对话框中。
我知道那是因为我在 FloatLayout 中调用了“内容”。我这样做是因为我想使用 ObjectProperty 但效果不佳。我真的不知道我能做些什么来解决这个问题。

抱歉我的英语不好。

代码：

from kivy.lang import Builder
from kivy.uix.boxlayout import BoxLayout

from kivymd.app import MDApp
from kivymd.uix.button import MDFlatButton
from kivymd.uix.dialog import MDDialog
from kivymd.uix.list import OneLineListItem,MDList
from kivy.properties import ObjectProperty

KV = '''
<Content>
    name:"content"
    draw:container
    orientation: "vertical"
    ScrollView:

        MDList:
            id: container


FloatLayout:
    mgr:cont
    Content:
        id:cont
        
    MDFlatButton:
        text: "ALERT DIALOG"
        pos_hint: {'center_x': .5, 'center_y': .5}
        on_release: app.show_confirmation_dialog()
'''


class Content(BoxLayout):
    draw=ObjectProperty(None)


class Example(MDApp):
    dialog = None
    mgr=ObjectProperty(None)
    def adding(self):
        for i in range(20):
            self.root.mgr.draw.add_widget(OneLineListItem(text=f"Single-line item {i}"))


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



    def show_confirmation_dialog(self):
        # def adding(self):
        #     for i in range(20):
        #         container.add_widget(OneLineListItem(text=f"Single-line item {i}"))
        if not self.dialog:
            self.dialog = MDDialog(
                title="Address:",
                type="custom",
                content_cls=Content(),
            )
        self.adding()
        self.dialog.open()


Example().run()

Answer 1

我通过将我的代码编辑为这个解决了这个问题：

新代码：

from kivy.lang import Builder
from kivy.uix.boxlayout import BoxLayout

from kivymd.app import MDApp
from kivymd.uix.button import MDFlatButton
from kivymd.uix.dialog import MDDialog
from kivymd.uix.list import OneLineListItem,MDList

KV = '''
<Content>
    # name:"content"
    # draw:container
    orientation: "vertical"
    ScrollView:

        MDList:
            id: container


FloatLayout:
    # mgr:cont
    # Content:
    #     id:cont
        
    MDFlatButton:
        text: "ALERT DIALOG"
        pos_hint: {'center_x': .5, 'center_y': .5}
        on_release: app.show_confirmation_dialog()
'''


class Content(BoxLayout):
    def __init__(self, *args, **kwargs):
        super().__init__(**kwargs)
        self.container= self.ids.container
        print("content called")
        def adding(self):
            for i in range(20):
                self.container.add_widget(OneLineListItem(text=f"Single-line item {i}"))
            print("adding called")
        adding(self)


class Example(MDApp):
    dialog = None


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


    def show_confirmation_dialog(self):
        if not self.dialog:
            self.dialog = MDDialog(
                title="Address:",
                type="custom",
                content_cls=Content(),
            )

        self.dialog.open()


Example().run()

Kivymd 自定义列表对话框。无法在 mddialog 中插入可变列表

Kivymd Custom List Dialog. can't insert changeable list in mddialog

python

kivy

kivy-language

kivymd

mddialog