Please Update AKBottomNavigation2

[kulothunganug]

please make the AKBottomNavigation2 and Button_Item depends on ScreenManager and Screen

Example:

this code works like

<Root>:

    AKBottomNavigation2:

        Button_Item:
            name: "screen 1"

            YourContent:

        Button_Item:
            name: "screen 2"

            YourContent:

        Button_Item:
            name: "screen 3"

            YourContent:

this

<Root>:

    ScreenManager:

        Screen:
            name: "screen 1"

            YourContent:

        Screen:
            name: "screen 2"

            YourContent:

        Screen:
            name: "screen 3"

            YourContent:

[quitegreensky]

@Kulothungan16 I made the current structure intentionally because its more flexible for users