Call method from kv file

[Fernando Lima]

main.kv:

WindowManager:

    Form1:

    Form2:

<Form1>

    name: 'form1'

    BoxLayout:

        Button:

            text: 'Press Me'

            on_press: form1.button_pressed()

<Form2>

    name: 'form2'

    BoxLayout:

        Button:

            text: 'Press Me'

            on_press: form2.button_pressed()

main.py:

import kivy

from kivy.app import App

from kivy.lang import Builder

from kivy.uix.screenmanager import ScreenManager, Screen

class WindowManager(ScreenManager):

    pass

class Form1(Screen):

    def button_pressed(self):

        print('Form1 button pressed')

class Form2(Screen):

    def button_pressed(self):

        print('Form2 button pressed')

class Main(App):

    def build(self):

        return Builder.load_file('main.kv')

Main().run()

It is simple. I want that when I press the button the kv file call the method in the same class defined in py file. Then if I press the button in Form1 the method button_pressed of the object of type Form1 must be called.

How I do this?

Thanks for your support.

[Fernando Lima]

If I do it in kv file:

<Form1>

    name: 'form1'

    BoxLayout:

        Button:

            text: 'Press Me'

            on_press: self.parent.parent.button_pressed()

Then works, but if I change the layout will stop to work because I need to go upping each level of the hierarchy.

I would like to access the Form1 methods directly.

Is it possible? How?

Thanks a lot for your support.

[Fernando Lima]

I found a solution. Sorry for ask it, I am starting with kivy. But maybe it helps someone more.

If I do it in kv file:

<Form1>

    name: 'form1'

    BoxLayout:

        Button:

            text: 'Press Me'

            on_press: root.button_pressed()

It solves my problem.