PyBitmessage-2021-04-27/src/main.kv

#:import FadeTransition kivy.uix.screenmanager.FadeTransition

<Display>:
    BoxLayout:
        orientation: "vertical"
        BoxLayout: 
            size_hint: 1, None
            height: '48dp'
            Button:
                text: 'messages'
                on_release: sm.current = 'screen_one'
                background_color: (0,0,0,0)
                color: 0,0,0,1
            Button:
                text: 'send'
                on_release: sm.current = 'screen_two'
                background_color: (0,0,0,0)
                color: 0,0,0,1
            Button:
                text: 'subscription'
                on_release: sm.current = 'screen_three'
                background_color: (0,0,0,0)
                color: 0,0,0,1
            Button:
                text: 'four'
                on_release: sm.current = 'screen_four'
                background_color: (0,0,0,0) 
                color: 0,0,0,1

            Button:
                text: 'chans'
                on_release: sm.current = 'screen_five'
                background_color: (0,0,0,0) 
                color: 0,0,0,1
            Button:
                text: 'blacklist'
                on_release: sm.current = 'screen_six'
                background_color: (0,0,0,0) 
                color: 0,0,0,1

        ScreenManager:
            id: sm
            transition: FadeTransition()
            Screen_One:
            Screen_Two:
            Screen_three:
            Screen_four:
            Screen_five:
            Screen_six:
            EmailScreen:

<Screen_One>:
    name: 'screen_one'      
    BoxLayout:
        padding: 10,10,10,300
        orientation: "vertical"
        Button:
            text: "create"
            size_hint_y: 0.3
            size_hint_x: 0.1
            color: 0,0,0,1
            background_color: (0,0,0,0)
        Button:
            text: "inbox"
            background_color: (0,0,0,0)
            size_hint_y: 0.3
            size_hint_x: 0.1
            color: 0,0,0,1
        Button:
            text: "new"
            background_color: (0,0,0,0)
            size_hint_y: 0.3
            size_hint_x: 0.1
            color: 0,0,0,1
            on_press:
                root.manager.current = 'email'
        Button:
            text: "sent"
            background_color: (0,0,0,0)
            size_hint_y: 0.3
            size_hint_x: 0.1
            color: 0,0,0,1

<Screen_Two>:
    name: 'screen_two'      
    Label:
        text: "Two"

<Screen_three>:
    name: 'screen_three'      
    Label:
        text: "Three"

<Screen_four>:
    name: 'screen_four'      
    Label:
        text: "four"

<Screen_five>:
    name: 'screen_five'      
    Label:
        text: "Two"

<Screen_six>:
    name: 'screen_six'      
    Label:
        text: "Two"

<EmailScreen>:
    name: 'email'
    BoxLayout:
        padding: 100,10,100,100
        id: login_layout
        orientation: "vertical"
        GridLayout:
            rows: 2
            orientation: 'vertical'
            spacing: 10
            Label:
                text: 'From: '
                background_color: (0,0,0,0)
                color: 0,0,0,1
                font_size: 18
                pos_hint: {"x":.15,"y":1}
                text_size: root.width-20, 20

            TextInput:
                multiline:False
                size_hint: 1,.4

        GridLayout:
            rows: 2
            orientation: 'vertical'
            Label:
                text: 'To: '
                background_color: (0,0,0,0)
                color: 0,0,0,1
                font_size: 18
                pos_hint: {"x":.15,"y":.5}
                text_size: root.width-20, 20

            TextInput:
                multiline:False
                size_hint: 1,.4
                pos_hint: {"x":.2,"y":.5}

        GridLayout:
            rows: 2
            orientation: 'vertical'
            Label:
                text: 'Message'
                background_color: (0,0,0,0)
                color: 0,0,0,1
                pos_hint: {"x":.15,"y":.5}
                font_size: 18
                text_size: root.width-20, 20

            TextInput:
                id: msg
                multiline:True
                size_hint: 1,2

        Button:
            text: "SEND"
            size_hint_y: 0.1
            size_hint_x: 0.2
            pos_hint: {"x":.15,"y":1}