kv 33 textinput progressbar

#progressbar.kv

ProgressBarWidget:

    BoxLayout:

        size: root.width, root.height

        orientation: "vertical"

        BoxLayout:

            TextInput:

                size_hint: 1, None

                height: "120dp"

                pos_hint: {"center_y": 0.5}

                id: text1

                multiline: False

                on_text_validate: root.text_input(self)

                input_filter: "float"

                text: "50"

                font_size: "100dp"

            Label:

                text: root.text_1

                font_name: "font/LCD.ttf"

                font_size: "100dp"

        ProgressBar:

            max: 100

            value: float(root.text_1)

----------------------

#progressbar.py

from kivy.app import App

from kivy.properties import StringProperty

from kivy.uix.widget import Widget

class ProgressBarWidget(Widget):

    text_1 = StringProperty("50")

    def text_input(self, widget):

        self.text_1 = widget.text

class ProgressBarApp(App):

    pass

ProgressBarApp().run()

reference:

https://www.youtube.com/watch?v=l8Imtec4ReQ&t=529s