Ewan
Reputation: 109
AttributeError: 'MainApp' object has no attribute 'menu'
I am still new to kivymd and I still struggle with programming generally. I am trying to make a drop-down list for one of my screens. I suspect I am doing something fairly stupid and it's really obvious but I can't for the life of me understand what it is. When pressing my dropdown I get an error.
I have placed the dropdown in the screen titled "Create Case Version 2.0" as I am trying to play around with the spacing etc. It's labelled "testing" atm
As always any help is massively appreciated:
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.label import Label
from kivy.uix.popup import Popup
from kivy.uix.screenmanager import ScreenManager, Screen, FadeTransition
from kivy.uix.textinput import TextInput
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, OneLineIconListItem
from kivy.properties import ObjectProperty
from kivymd.uix.menu import MDDropdownMenu
from kivy.metrics import dp
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 IconListItem(OneLineIconListItem):
icon = StringProperty()
class Homepage(Screen):
Login = ObjectProperty()
nav_drawer = ObjectProperty()
def submit(self):
Popup(title='Submitted', content=Label(text='Case has been submitted and will be reviewed'), size_hint=(0.5, 0.5)).open()
sm = self.ids.screen_manager
scr = sm.get_screen('Create Case')
for child in scr.children:
if isinstance(child, TextInput):
child.text = ''
def dropdown(self):
self.menu_items = [
{
"viewclass": "IconListItem",
"icon": "git",
"text": f"Item {i}",
"height": dp(56),
"on_release": lambda x=f"Item {i}": self.set_item(x),
} for i in range(5)
]
self.menu = MDDropdownMenu(
caller=self.screen.ids.drop_item,
items=self.menu_items,
position="center",
width_mult=4,
)
self.menu.bind()
def set_item(self, text_item):
self.screen.ids.drop_item.set_item(text_item)
self.menu.dismiss()
def build(self):
return self.screen
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: "Create Case Version 2.0"
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 Version 2.0"
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"
MDLabel:
text: "Case Title"
font_size: 15
size_hint_x: None
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.875, "center_x": 0.115}
MDTextFieldRound:
id: CaseTitle
hint_text: "Info Here"
icon_right: "Case Title"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.863, "center_x": 0.155}
MDLabel:
text: "Customer"
font_size: 15
size_hint_x: None
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.791, "center_x": 0.115}
MDTextFieldRound:
id: Customer
hint_text: "Info Here"
mode:"rectangle"
icon_right: "Customer"
size_hint_x: None
width: 275
font_size: 14
pos_hint: {"top": 0.779, "center_x": 0.155}
MDLabel:
text: "Customer Forename"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.707, "center_x": 0.115}
MDTextFieldRound:
id: Customer Forename
hint_text: "Info here"
mode:"rectangle"
icon_right: "Customer"
size_hint_x: None
width: 137.5
font_size: 14
pos_hint: {"top": 0.687, "center_x": 0.121}
MDLabel:
text: "Customer Surname"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.707, "center_x": 0.210}
MDTextFieldRound:
id: Customer Forename
hint_text: "Info Here"
mode:"rectangle"
icon_right: "Customer"
size_hint_x: None
width: 137.5
font_size: 14
pos_hint: {"top": 0.687, "center_x": 0.210}
MDLabel:
text: "Alternative email"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.620, "center_x": 0.115}
MDTextFieldRound:
id: Alternative Email
hint_text: "Info Here"
mode:"rectangle"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.600, "center_x": 0.155}
MDLabel:
text: "Alternative Phone"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.533, "center_x": 0.115}
MDTextFieldRound:
id: Alternative phone
hint_text: "Info Here"
mode:"rectangle"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.513, "center_x": 0.155}
MDLabel:
text: "Case Source"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.449, "center_x": 0.115}
MDTextFieldRound:
id: Case Source
hint_text: "Info Here"
mode:"rectangle"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.437, "center_x": 0.155}
MDLabel:
text: "Case Priority"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.365, "center_x": 0.115}
MDTextFieldRound:
id: Case Priority
hint_text: "Info Here"
mode:"rectangle"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.353, "center_x": 0.155}
MDLabel:
text: "Case Category"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.281, "center_x": 0.115}
MDLabel:
text: "Case Description"
font_size: 15
size_hint_x: None
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.883, "center_x": 0.360}
MDTextFieldRound:
id: CaseDescription
hint_text: "Info Here"
icon_right: "Case Title"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.863, "center_x": 0.400}
MDLabel:
text: "Possible Cases"
font_size: 15
size_hint_x: None
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.799, "center_x": 0.360}
MDTextFieldRound:
id: PossibleCases
hint_text: "Info Here"
icon_right: "Case Title"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.780, "center_x": 0.400}
MDLabel:
text: "Knowledge Helper"
font_size: 15
size_hint_x: None
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.715, "center_x": 0.360}
MDTextFieldRound:
id: KnowledgeHelper
hint_text: "Info Here"
icon_right: "Case Title"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.697, "center_x": 0.400}
MDRoundFlatButton:
text: "Submit"
font_size: 12
pos_hint: {"center_y": 0.400,"center_x": 0.5}
on_release: root.submit()
Screen:
name: "Create Case Version 2.0"
MDLabel:
text: "Case Title"
font_size: 15
size_hint_x: None
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.875, "center_x": 0.115}
MDTextFieldRound:
id: CaseTitle
hint_text: "Info Here"
icon_right: "Case Title"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.863, "center_x": 0.155}
MDLabel:
text: "Customer"
font_size: 15
size_hint_x: None
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.791, "center_x": 0.115}
MDTextFieldRound:
id: Customer
hint_text: "Info Here"
mode:"rectangle"
icon_right: "Customer"
size_hint_x: None
width: 275
font_size: 14
pos_hint: {"top": 0.779, "center_x": 0.155}
MDLabel:
text: "Customer Forename"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.707, "center_x": 0.115}
MDTextFieldRound:
id: Customer Forename
hint_text: "Info here"
mode:"rectangle"
icon_right: "Customer"
size_hint_x: None
width: 137.5
font_size: 14
pos_hint: {"top": 0.687, "center_x": 0.121}
MDLabel:
text: "Customer Surname"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.707, "center_x": 0.210}
MDTextFieldRound:
id: Customer Forename
hint_text: "Info Here"
mode:"rectangle"
icon_right: "Customer"
size_hint_x: None
width: 137.5
font_size: 14
pos_hint: {"top": 0.687, "center_x": 0.210}
MDLabel:
text: "Alternative email"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.620, "center_x": 0.115}
MDTextFieldRound:
id: Alternative Email
hint_text: "Info Here"
mode:"rectangle"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.600, "center_x": 0.155}
MDLabel:
text: "Alternative Phone"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.533, "center_x": 0.115}
MDTextFieldRound:
id: Alternative phone
hint_text: "Info Here"
mode:"rectangle"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.513, "center_x": 0.155}
MDLabel:
text: "Case Source"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.449, "center_x": 0.115}
MDTextFieldRound:
id: Case Source
hint_text: "Info Here"
mode:"rectangle"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.437, "center_x": 0.155}
MDLabel:
text: "Case Priority"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.365, "center_x": 0.115}
MDTextFieldRound:
id: Case Priority
hint_text: "Info Here"
mode:"rectangle"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.353, "center_x": 0.155}
MDLabel:
text: "Case Category"
font_size: 15
size_hint_x: None
multiline: False
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.281, "center_x": 0.115}
MDDropDownItem:
id: drop_item
pos_hint: {"center_x": .5, "center_y": .5}
text: 'testing'
on_release: app.menu.open()
MDLabel:
text: "Case Description"
font_size: 15
size_hint_x: None
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.883, "center_x": 0.360}
MDTextFieldRound:
id: CaseDescription
hint_text: "Info Here"
icon_right: "Case Title"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.863, "center_x": 0.400}
MDLabel:
text: "Possible Cases"
font_size: 15
size_hint_x: None
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.799, "center_x": 0.360}
MDTextFieldRound:
id: PossibleCases
hint_text: "Info Here"
icon_right: "Case Title"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.780, "center_x": 0.400}
MDLabel:
text: "Knowledge Helper"
font_size: 15
size_hint_x: None
bold: True
color: 0.204, 0.204, 0.204, 1
pos_hint: {"center_y": 0.715, "center_x": 0.360}
MDTextFieldRound:
id: KnowledgeHelper
hint_text: "Info Here"
icon_right: "Case Title"
size_hint_x: None
width: 275
font_size: 15
pos_hint: {"top": 0.697, "center_x": 0.400}
MDRoundFlatButton:
text: "Submit"
font_size: 12
pos_hint: {"center_y": 0.400,"center_x": 0.5}
on_release: root.submit()
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
Upvotes: 0
Views: 996
Answers (1)
John Anderson
Reputation: 38822
In your kv file, you have:
on_release: app.menu.open()
but, as the error says, the App class has no menu attribute. You have code in your post that looks like it will create a menu attribute in the Homepage class, but it is never called. If that is the menu that you want to use, I suggest changing your kv to access that menu:
MDDropDownItem:
id: drop_item
pos_hint: {"center_x": .5, "center_y": .5}
text: 'testing'
on_release: root.menu.open() # access Homepage menu
And add code to make sure that the menu is created:
class Homepage(Screen):
Login = ObjectProperty()
nav_drawer = ObjectProperty()
def __init__(self, **kwargs):
super(Homepage, self).__init__(**kwargs)
self.dropdown()
There are other errors in your code, but this should correct that one problem.
Upvotes: 1
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