Improvement Dialog_Box

[Gacheur]

Description of the Feature

Hi, I'm new user to github, I don't know if I'm in the right channel. But I'have an idea to improve the KivyMD lib. It concern The file dilog.py This function allows you to modify all item in a dialog box removing older items. The user cant just modify the list instead to re create another object. On the surface, it does not change anything, but when the app running on smartphone this can save a amount resources.

Funcion added to kivymd/uix/dialog/dialog.py

def update_items(self, ls_new_item):

    for item in self.items:
        self.ids.box_items.remove_widget(item)

    self.items = ls_new_item

    self.create_items()

App Full Code

from kivymd.app import MDApp
from kivymd.uix.button import MDFlatButton, MDRaisedButton
from kivymd.uix.dialog import MDDialog
from kivymd.uix.list import OneLineAvatarIconListItem

KV = '''

MDFloatLayout:

    MDRaisedButton:
        text: "ALERT DIALOG"
        pos_hint: {'center_x': .5, 'center_y': .5}
        on_release: app.show_confirmation_dialog()

    MDRaisedButton:
        text: "CHANGE ITEM"
        pos_hint: {'center_x': .5, 'center_y': .4}
        on_release: app.change_item_list()
'''

class Example(MDApp):
    dialog = None

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

    def show_confirmation_dialog(self):

        ls_item = [
        OneLineAvatarIconListItem(text="Callisto"),
        OneLineAvatarIconListItem(text="Luna")
        ]

        if not self.dialog:
            self.dialog = MDDialog(
                title="Phone ringtone",
                type="confirmation",
                items=ls_item,
                buttons=[
                    MDFlatButton(
                        text="CANCEL",
                        theme_text_color="Custom",
                        text_color=self.theme_cls.primary_color,
                    ),
                    MDFlatButton(
                        text="OK",
                        theme_text_color="Custom",
                        text_color=self.theme_cls.primary_color,
                    ),
                ],
            )

        self.dialog.open()

    def change_item_list(self):

        ls_new_item = [
            OneLineAvatarIconListItem(text="New"),
            OneLineAvatarIconListItem(text="List")
        ]

        self.dialog.update_items(ls_new_item)

        self.dialog.open()

Example().run()

Screenshots

Versions

• OS: Ubuntu 21.10
• Python: 3.9.7
• Kivy: 2.0.0
• KivyMD: 1.0.0.dev0 (modify)

[sollarp]

Hi,

If you think you can add to the project and have an idea. Issue a PR (pull request ) and @HeaTTheatR will decides if your commit improves the project. Please see PR documentation for further info. https://github.com/kivymd/KivyMD#contributing