How to modify current ScreenManager to another

Question

Good afternoon. I have a code structure with two ScreenManager: id: sm ==> besides being my root it has only two screens

LoginScreen:
    name: 'screen_login'

MainScreen:
    name: 'main'

When the login is performed it directs me to the main screen:

On the screen named 'main' it has:

1 - MDToolbar 1 - MDNavigationLayout and it has a ScreenManager of id: screen_manager with the following screens:

        ScreenRecycleView
        LoginScreen
        ScreenSingUp
        ScreenItem

1 - MDNavigationDrawer and it has a ContentNavigationDrawer with a creen_manager variable that inherits from the one described above.

There it is working beautifully! I call any of the screens above and everything runs.

The problem is that I have a screen called

<ScreenRecycleView>:
    name: 'recycle_view'

and this one has a MyImageCard class that has a button:

MDFlatButton: text: "New Screen Here" increment_width: "164dp"

On it I click and I can't call the screen that I pointed out in the example.

    on_release:
        app.root.screen_manager.current = 'screen_item'

I've tried everything I know, I'm for your help.

Below is my code reduced to the max to help them help me:

My code here.

I know my problem is screen manager but I can't solve it!

Answer 1

With your help I was able to discover: app.root.get_screen('main').ids.screen_manager.current = 'screen_item'