Kivy tutorial how to create drop-down lists in Kivy

Below I provide a usage ScreenManager stay Kivy An example of creating a drop-down list in . Please note that , This applies to all layouts , But I found that GridLayout Is the easiest to control . You can copy and paste it into your code .

from kivy.app import App
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.lang import Builder

Builder.load_file("try_out_app.kv")

class ExampleScreen(Screen):
    pass

class RootWidget(ScreenManager):
    pass

class Demo(App):

    def build(self):

        return RootWidget()


if __name__ == "__main__":
    Demo().run()

Interface

<ExampleScreen>:
    name: "example_screen"
    GridLayout:
        cols: 1
        padding: 100, 20
        size_hint: 0.5, 0.5
        Button:
            id: btn
            text: "select"
            size_hint: None, None

            on_parent: drop_content.dismiss()
            on_release: drop_content.open(self)
        DropDown: