How to change background image of button when clicked in kivy?

[mehdi alizade]

I have two images for the background a button, One of the images is the default image of the button, I want to change the background image of button, when I click it. This is my code:

class Control_(Screen):

    Status = 0

    print(Status)

    def StatusButton(self):

        if self.RelayStatus == 0:

            self.Status = 1

            print(self.Status)

        elif self.Status == 1:

            self.Status = 0   

            print(self.Status)     

and *.kv is:

<Control_>:

            Button:

            background_normal: "on.png"

            size_hint: .3, .2

            pos_hint: {"x":.3, "y":.3} 

            on_release:

                root.StatusButton()

This is my images: 

[Elliot Garbus]

Here is an example.  I called the button SlideButton.  It is created by adding ToggleButtonBehavior to an Image. 

 

from kivy.app import App

from kivy.lang import Builder

from kivy.uix.behaviors import ToggleButtonBehavior

from kivy.uix.image import Image

 

kv = """

<SlideButton>:

    allow_stretch: True  # you can make this False if you do not want the button to scale with widget size

    source: 'off.png'

    on_state:

        self.source = {'normal': 'off.png', 'down': 'on.png'}[self.state]

 

FloatLayout:

    SlideButton:

        pos_hint: {'center_x': 0.5, 'center_y': 0.5}

        size_hint: None, None

        size: 200, 100

 

"""

 

 

class SlideButton(ToggleButtonBehavior, Image):

    pass

 

class AMCustomToggle(App):

    def build(self):

        return Builder.load_string(kv)

 

 

AMCustomToggle().run()

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[mehdi alizade]

Thank U so much.

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