pythonkivykivy-languagekivymd
Nav Bar doesn't cover screen when opened
I'm building a registration form screen in Kivy. I have some other basic screens as part of the nav bar. However, this is the first one I'm really adding some content to. I have some round text fields that I've just thrown on there to get an idea of spacing, but currently when I reopen the NAV the bar the text field buttons appear in front of it and I want it to be behind.
from kivy import Config
from kivy.app import App
from kivy.lang import Builder
from kivy.properties import StringProperty
from kivy.uix.image import Image
from kivy.uix.screenmanager import ScreenManager, Screen, FadeTransition
from kivymd.app import MDApp
from kivy.uix.boxlayout import BoxLayout
from kivymd.theming import ThemableBehavior
from kivymd.uix.navigationdrawer import MDNavigationLayout, MDNavigationDrawer
from kivymd.uix.list import MDList, OneLineAvatarListItem, ILeftBody
from kivy.properties import ObjectProperty
from kivy.uix.widget import Widget
Config.set('input', 'mouse', 'mouse,disable_multitouch')
class DrawerList(ThemableBehavior, MDList, Screen):
pass
class NavLayout(MDNavigationLayout):
pass
class Login(Screen):
nav_drawer = ObjectProperty()
class Nav(Screen):
Login = ObjectProperty()
ScreenManager = ObjectProperty
class Homepage(Screen):
Login = ObjectProperty()
nav_drawer = ObjectProperty()
class AddNewCustomer(Screen):
nav_drawer = ObjectProperty()
class AddNewStaff(Screen):
pass
class ScreenManager(ScreenManager):
Login = ObjectProperty()
class ContentNavigationDrawer(BoxLayout):
pass
class MainApp(MDApp):
def build(self):
# Window.maximize()
# self.theme_cls.theme_style = "Light"
# self.theme_cls.primary_hue = "900"
login = Builder.load_file("login.kv")
return login
if __name__ == "__main__":
MainApp().run()
ScreenManager:
Login:
Homepage:
AddNewCustomer:
Nav:
DrawerList:
<Login>:
name: "login"
MDCard:
size_hint: None, None
size: 700, 800
pos_hint: {"center_x": 0.5, "center_y": 0.5}
elevation: 10
padding: 25
spacing: 25
orientation: 'vertical'
Image:
source: 'images/asteria.png'
size: 100, 200
MDLabel:
id: login
font_size: 40
halign: 'center'
size_hint_y: None
height: self.texture_size[1]
padding_y: 15
MDTextFieldRound:
id: user
hint_text: "username"
icon_right: "account"
size_hint_x: None
width: 200
font_size: 18
pos_hint: {"center_x": 0.5}
MDTextFieldRound:
id: password
hint_text: "password"
icon_right: "eye-off"
size_hint_x: None
width: 200
font_size: 18
pos_hint: {"center_x": 0.5}
password: True
MDRoundFlatButton:
text: "LOGIN"
font_size: 12
pos_hint: {"center_x": 0.5}
on_release:
root.manager.current = "homepage"
root.manager.transition.direction = "left"
MDRoundFlatButton:
text: "CLEAR"
font_size: 12
pos_hint: {"center_x": 0.5}
on_press: app.clear()
Widget:
size_hint_y: None
height: 50
<Nav>:
ScrollView:
MDList:
OneLineListItem:
text: "Add New Customer"
on_release:
root.nav_drawer.set_state("close")
root.screen_manager.current = "addNewCustomer"
root.screen_manager.transition.direction = "right"
OneLineListItem:
text: "Add New Staff"
font_size: 15
halign: "center"
on_release:
root.nav_drawer.set_state("close")
root.screen_manager.current = "addNewStaff"
OneLineListItem:
text: "Case List"
font_size: 15
halign: "center"
on_release:
root.nav_drawer.set_state("close")
root.screen_manager.current = "caseList"
OneLineListItem:
text: "Create Case"
font_size: 15
halign: "center"
on_release:
root.nav_drawer.set_state("close")
root.screen_manager.transition.direction = "left"
root.screen_manager.current = "Create Case"
OneLineListItem:
text: "Log Out"
font_size: 15
halign: "center"
on_release:
root.nav_drawer.set_state("close")
root.manager.current = "login"
root.manager.transition.direction = "right"
<Homepage>:
name: "homepage"
Screen:
BoxLayout:
orientation: 'vertical'
MDToolbar:
title: 'Navigation'
left_action_items: [['menu', lambda x: nav_drawer.set_state('toggle')]]
right_action_items: [["images/asteria.png", lambda x: None]]
elevation:5
Widget:
MDNavigationDrawer:
id: nav_drawer
Nav:
screen_manager: screen_manager
nav_drawer: nav_drawer
manager: root.manager
MDNavigationLayout:
ScreenManager:
id: screen_manager
Screen:
name: "Homepage"
MDLabel:
text: "Welcome Home"
halign: "center"
Screen:
name: "addNewCustomer"
MDLabel:
text: "Add New customer"
halign: "center"
Screen:
name: "addNewStaff"
MDLabel:
text: "Add New Staff"
halign: "center"
Screen:
name: "caseList"
MDLabel:
text: "Case List"
halign: "center"
Screen:
name: "casePool"
MDLabel:
text: "Case Pool"
halign: "center"
Screen:
name: "Create Case"
MDTextFieldRound:
id: user
hint_text: "Case Title"
icon_right: "Case Title"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.875, "center_x": 0.155}
MDTextFieldRound:
id: user2
hint_text: "e.g. Matthew Inwards School of Swag"
mode:"rectangle"
icon_right: "Customer"
size_hint_x: None
width: 275
font_size: 14
pos_hint: {"top": 0.779, "center_x": 0.155}
Solution
Change the position of the navigation bar in the homepage:
ScreenManager:
Login:
Homepage:
AddNewCustomer:
Nav:
DrawerList:
<Login>:
name: "login"
MDCard:
size_hint: None, None
size: 700, 800
pos_hint: {"center_x": 0.5, "center_y": 0.5}
elevation: 10
padding: 25
spacing: 25
orientation: 'vertical'
Image:
source: 'images/asteria.png'
size: 100, 200
MDLabel:
id: login
font_size: 40
halign: 'center'
size_hint_y: None
height: self.texture_size[1]
padding_y: 15
MDTextFieldRound:
id: user
hint_text: "username"
icon_right: "account"
size_hint_x: None
width: 200
font_size: 18
pos_hint: {"center_x": 0.5}
MDTextFieldRound:
id: password
hint_text: "password"
icon_right: "eye-off"
size_hint_x: None
width: 200
font_size: 18
pos_hint: {"center_x": 0.5}
password: True
MDRoundFlatButton:
text: "LOGIN"
font_size: 12
pos_hint: {"center_x": 0.5}
on_release:
root.manager.current = "homepage"
root.manager.transition.direction = "left"
MDRoundFlatButton:
text: "CLEAR"
font_size: 12
pos_hint: {"center_x": 0.5}
on_press: app.clear()
Widget:
size_hint_y: None
height: 50
<Nav>:
ScrollView:
MDList:
OneLineListItem:
text: "Add New Customer"
on_release:
root.nav_drawer.set_state("close")
root.screen_manager.current = "addNewCustomer"
root.screen_manager.transition.direction = "right"
OneLineListItem:
text: "Add New Staff"
font_size: 15
halign: "center"
on_release:
root.nav_drawer.set_state("close")
root.screen_manager.current = "addNewStaff"
OneLineListItem:
text: "Case List"
font_size: 15
halign: "center"
on_release:
root.nav_drawer.set_state("close")
root.screen_manager.current = "caseList"
OneLineListItem:
text: "Create Case"
font_size: 15
halign: "center"
on_release:
root.nav_drawer.set_state("close")
root.screen_manager.transition.direction = "left"
root.screen_manager.current = "Create Case"
OneLineListItem:
text: "Log Out"
font_size: 15
halign: "center"
on_release:
root.nav_drawer.set_state("close")
root.manager.current = "login"
root.manager.transition.direction = "right"
<Homepage>:
name: "homepage"
Screen:
MDNavigationLayout:
ScreenManager:
id: screen_manager
Screen:
name: "Homepage"
MDLabel:
text: "Welcome Home"
halign: "center"
Screen:
name: "addNewCustomer"
MDLabel:
text: "Add New customer"
halign: "center"
Screen:
name: "addNewStaff"
MDLabel:
text: "Add New Staff"
halign: "center"
Screen:
name: "caseList"
MDLabel:
text: "Case List"
halign: "center"
Screen:
name: "casePool"
MDLabel:
text: "Case Pool"
halign: "center"
Screen:
name: "Create Case"
MDTextFieldRound:
id: user
hint_text: "Case Title"
icon_right: "Case Title"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.875, "center_x": 0.155}
MDTextFieldRound:
id: user2
hint_text: "e.g. Matthew Inwards School of Swag"
mode:"rectangle"
icon_right: "Customer"
size_hint_x: None
width: 275
font_size: 14
pos_hint: {"top": 0.779, "center_x": 0.155}
BoxLayout:
orientation: 'vertical'
MDToolbar:
title: 'Navigation'
left_action_items: [['menu', lambda x: nav_drawer.set_state('open')]]
right_action_items: [["images/asteria.png", lambda x: None]]
elevation:5
Widget:
MDNavigationDrawer:
id: nav_drawer
Nav:
screen_manager: screen_manager
nav_drawer: nav_drawer
manager: root.manager