How do i create a button in another window by pressing a button kivy/kivymd/python

Question

I am trying to create a button by pressing a button, but I cant find any information about it.

Answer 1

You can use this approach in kivy or kivyMD.

from kivy.lang import Builder
from kivymd.app import MDApp
from kivymd.uix.button import MDRaisedButton
from kivy.properties import ObjectProperty


KV = '''

ScreenManager:
    id: screen_manager
    
    Screen:
        id: screenID
        
        MDRaisedButton:
            text: "Create Button"
            pos_hint: {'center_x': .5, 'center_y': .5}
            on_release: app.createButton()
'''

class Example(MDApp):
    screen_manager = ObjectProperty() # IMPORTANT!

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

    def build(self):
        return self.screen

    def createButton(self):
        print("button created")
        self.btn = MDRaisedButton(text= "New Button", pos_hint= {'center_x': .5, 'center_y': .7})
        self.root.ids.screenID.add_widget(self.btn)


Example().run()