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I am writing a chat app using kivy and socket. However, whenever my app receives a message, I will always get an AttributeError: 'super' object has no attribute '__getattr__'.
from kivy.app import App
from kivy.lang import Builder
from kivy.properties import ObjectProperty, StringProperty
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.image import Image
from kivymd.dialog import MDDialog
from kivymd.theming import ThemeManager
from kivymd.navigationdrawer import NavigationLayout
from kivymd.list import OneLineAvatarListItem, ILeftBody
from kivymd.toast import toast
from kivymd.dialog import MDDialog
from kivy.uix.popup import Popup
from threading import Thread
import socket
sock = socket.socket()
sock.connect(('127.0.0.1', 6718))
sock.sendall(b"add_contact hello llo")
sock = socket.socket()
sock.connect(('127.0.0.1', 6718))
sock.sendall(b'new llo')
class MyLayout(BoxLayout):
scr_mngr = ObjectProperty(None)
def check_data_login(self):
username = self.scr_mngr.screen1.username.text
password = self.scr_mngr.screen1.password.text
print(username)
print(password)
if username == "KivyMD" and password == "kivy":
self.ids["wrongpass"].text = ""
self.change_screen("screen2")
else:
self.ids["wrongpass"].text = "Wrong username or password, please try again"
def change_screen(self, screen, *args):
self.scr_mngr.transition.direction = 'left'
self.scr_mngr.current = screen
def back_to_chat(self):
self.scr_mngr.transition.direction = 'right'
self.scr_mngr.current = 'screen2'
class nav_layout(NavigationLayout):
def print_text(self):
print('hello')
def check_data_login(self):
username = self.ids.screen1.username.text
password = self.ids.screen1.password.text
print(username)
print(password)
if username == "KivyMD" and password == "kivy":
self.change_screen("screen2")
self.ids.wrongpass.text = ""
else:
self.ids.wrongpass.text = \
"Wrong username or password, please try again"
def change_screen(self, screen, *args):
self.ids.scr_mngr.transition.direction = 'left'
self.ids.scr_mngr.current = screen
def back_to_chat(self):
self.ids.scr_mngr.transition.direction = 'right'
self.ids.scr_mngr.current = 'screen2'
def logout(self):
# logout function, returns to screen 1
self.ids.scr_mngr.current = 'screen1'
def oof(self, data):
self.ids.Chat_String.text = data
class UploadPopup(Popup):
def load(self, path, selection):
print(path, selection)
KV = """
#:import Toolbar kivymd.toolbar.Toolbar
#:import MDNavigationDrawer kivymd.navigationdrawer.MDNavigationDrawer
#:import NavigationLayout kivymd.navigationdrawer.NavigationLayout
#:import NavigationDrawerDivider kivymd.navigationdrawer.NavigationDrawerDivider
#:import NavigationDrawerToolbar kivymd.navigationdrawer.NavigationDrawerToolbar
#:import MDTextField kivymd.textfields.MDTextField
#:import MDSeparator kivymd.card.MDSeparator
#:import MDThemePicker kivymd.theme_picker.MDThemePicker
#:import CardTransition kivy.uix.screenmanager.CardTransition
#:import Factory kivy.factory.Factory
<MDCustomIconItem>:
text: root.text
AvatarSampleWidget:
source: root.icon
<UploadPopup>:
id: popup
title: "Upload"
BoxLayout:
FileChooserIconView:
id: FileChoose
pos_hint_x: 0.5
pos_hint_y: 0.5
on_selection: root.load(FileChoose.path, FileChoose.selection)
MDRaisedButton:
text: "Upload"
text_color: (0,0,0,1)
on_release: root.load(FileChoose.path, FileChoose.selection)
on_release: popup.dismiss()
MDRaisedButton:
text: "Close"
text_color: (0,0,0,1)
on_release: popup.dismiss()
nav_layout:
id: nav_layout
MDNavigationDrawer:
id: nav_drawer
drawer_logo: 'logo.png'
NavigationDrawerToolbar:
title: 'hello'
NavigationDrawerIconButton:
icon: 'settings'
text: 'Account Settings'
on_release: root.change_screen('screen3')
NavigationDrawerIconButton:
icon: 'face'
text: 'Friends'
on_release: root.print_text()
NavigationDrawerIconButton:
icon: 'logout'
text: 'Logout'
on_release: root.logout()
NavigationDrawerDivider:
height: dp(1)
MyLayout:
scr_mngr: scr_mngr
orientation: 'vertical'
ScreenManager:
transition: CardTransition()
id: scr_mngr
screen1: screen1
Screen:
id: screen1
name: 'screen1'
username: username
password: password
BoxLayout:
size_hint: None, None
size: dp(520), dp(340)
pos_hint: {'center_x': 0.5, 'center_y': 0.5}
BoxLayout:
orientation:'vertical'
padding: dp(20)
spacing:20
MDLabel:
text: 'Chat App'
theme_text_color: 'Secondary'
font_style:"Title"
size_hint_y: None
height: dp(36)
MDSeparator:
height: dp(1)
MDTextField:
id: username
hint_text: "Username "
size_hint_y: 0.9
helper_text_mode: "on_focus"
MDTextField:
id: password
hint_text: "Password "
helper_text_mode: "on_focus"
size_hint_y: 0.9
password: True
MDFlatButton:
text: "Login"
pos_hint: {'center_x': 0.5}
on_release: root.check_data_login()
MDLabel:
id: wrongpass
color: 1,0,1,1
text: ""
Screen:
name: 'screen2'
id: screen2
Toolbar:
id: toolbar
title: "Welcome ! "
pos_hint: {'center_x': 0.5, 'center_y': 0.96}
md_bg_color: app.theme_cls.primary_color
background_palette: 'DeepPurple'
background_hue: 'A400'
left_action_items: [['menu', lambda x: app.root.toggle_nav_drawer() ]]
right_action_items: [['animation', lambda x: MDThemePicker().open()], ['camera', lambda x: print('hello')]]
MDLabel:
font_style: 'Title'
theme_text_color: 'Primary'
text: "Data :"
height: self.texture_size[1] + dp(3)
halign: 'center'
pos_hint: {'center_x': 0.5, 'center_y': 0.5}
Screen:
name: 'screen3'
id: 'screen3'
Toolbar:
id: tools
title: "Your Profile"
pos_hint: {'center_x': 0.5, 'center_y': 0.96}
md_bg_color: app.theme_cls.primary_color
background_palette: 'DeepPurple'
background_hue: 'A400'
left_action_items: [['arrow-left', lambda x: root.back_to_chat()]]
MDLabel:
id: 'Profile_String'
font_size: 90
text: "XXX"
halign: 'center'
pos_hint: {'center_x': 0.5, 'center_y': 0.85}
Screen:
name: 'screen4'
id: 'screen4'
Toolbar:
id: tools
title: "XXX"
pos_hint: {'center_x': 0.5, 'center_y': 0.96}
md_bg_color: app.theme_cls.primary_color
background_palette: 'DeepPurple'
background_hue: 'A400'
left_action_items: [['menu', lambda x: app.root.toggle_nav_drawer() ]]
right_action_items: [['animation', lambda x: MDThemePicker().open()], ['camera', lambda x: print('hello')]]
ScrollView:
pos_hint: {'center_x': .55, 'y': .35}
MDLabel:
id: 'Chat_String'
font_size: 40
text: "XXX"
MDTextField:
id: 'Input_String'
hint_text: 'Enter Your Message...'
helper_text_mode: 'on_focus'
pos_hint: {'center_x': 0.35, 'center_y': 0.2}
size_hint_x: 0.6
multiline: True
MDRaisedButton:
id: 'Send_Button'
text: 'Send'
pos_hint: {'center_x': 0.75, 'center_y': 0.2}
MDRaisedButton:
id: 'Choose_Image'
text: 'Attach File'
pos_hint: {'center_x': 0.9, 'center_y': 0.2}
on_release: Factory.UploadPopup().open()
"""
class MDCustomIconItem(OneLineAvatarListItem):
icon = StringProperty('')
text = StringProperty()
def _set_active(self, active, list):
pass
class AvatarSampleWidget(ILeftBody, Image):
pass
class MyApp(App):
theme_cls = ThemeManager()
theme_cls.primary_palette = 'Blue'
title = "Navigation Drawer"
main_widget = None
def __getattr__(self, attr):
return super().__getattr__(attr)
def build(self):
self.main_widget = Builder.load_string(KV)
return self.main_widget
def callback(self, instance, value):
self.main_widget.ids.scr_mngr.current = 'screen4'
def recover_data(self):
print('started')
while True:
data = sock.recv(1024)
data = data.decode()
if data:
print(data)
data = data.split()
data = data[-1] + ": " + ' '.join(data[:-1])
r = data + '\n'
open('chat1.txt', 'a+').write(r)
e = open('chat1.txt', 'r').readlines()
nav_layout().oof('\n\r'.join(e))
print(data)
def on_start(self):
Thread(target=self.recover_data).start()
for i in range(15):
self.main_widget.ids.nav_drawer.add_widget(
MDCustomIconItem(
text="Item menu %d" % i,
icon='logo.png',
on_release=lambda x, y=i: self.callback(x, y)))
MyApp().run()
I know this question has been asked before multiple times on StackOverflow, but none of them solved my problem.
Any help will be appreciated, Thank You!
**Edit: ** My full error message is here
Exception has occurred: AttributeError
'super' object has no attribute '__getattr__'
File "/Users/grace/Desktop/Android_APP/kivy/properties.pyx", line 841, in kivy.properties.ObservableDict.__getattr__
File "/Users/grace/Desktop/Android_APP/app.py", line 81, in oof
self.ids.Chat_String.text = data
File "/Users/grace/Desktop/Android_APP/app.py", line 334, in recover_data
nav_layout().oof('\n\r'.join(e))
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 869, in run
del self._target, self._args, self._kwargs
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 917, in _bootstrap_inner
self.run()
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 885, in _bootstrap
self._bootstrap_inner()
Reason
The error was due to assigning string value to id in kv file.
Solution
Remove single quote from all id in kv file.
Kv Language » Referencing Widgets
When assigning a value to id, remember that the value isn’t a string.
There are no quotes: good -> id: value, bad -> id: 'value'
Example
main.py
from kivy.app import App
from kivy.lang import Builder
from kivy.properties import ObjectProperty, StringProperty
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.image import Image
from kivymd.dialog import MDDialog
from kivymd.theming import ThemeManager
from kivymd.navigationdrawer import NavigationLayout
from kivymd.list import OneLineAvatarListItem, ILeftBody
# from kivymd.toast import toast
from kivymd.dialog import MDDialog
from kivy.uix.popup import Popup
from threading import Thread
import socket
# sock = socket.socket()
# sock.connect(('127.0.0.1', 6718))
# sock.sendall(b"add_contact hello llo")
#
# sock = socket.socket()
# sock.connect(('127.0.0.1', 6718))
#
# sock.sendall(b'new llo')
class MyLayout(BoxLayout):
scr_mngr = ObjectProperty(None)
def check_data_login(self):
username = self.scr_mngr.screen1.username.text
password = self.scr_mngr.screen1.password.text
print(username)
print(password)
if username == "KivyMD" and password == "kivy":
self.ids["wrongpass"].text = ""
self.change_screen("screen2")
else:
self.ids["wrongpass"].text = "Wrong username or password, please try again"
def change_screen(self, screen, *args):
self.scr_mngr.transition.direction = 'left'
self.scr_mngr.current = screen
def back_to_chat(self):
self.scr_mngr.transition.direction = 'right'
self.scr_mngr.current = 'screen2'
class nav_layout(NavigationLayout):
def print_text(self):
print('hello')
print("self.ids.Chat_String.text=", self.ids.Chat_String.text)
def check_data_login(self):
username = self.ids.screen1.username.text
password = self.ids.screen1.password.text
print(username)
print(password)
if username == "KivyMD" and password == "kivy":
self.change_screen("screen2")
self.ids.wrongpass.text = ""
else:
self.ids.wrongpass.text = \
"Wrong username or password, please try again"
def change_screen(self, screen, *args):
self.ids.scr_mngr.transition.direction = 'left'
self.ids.scr_mngr.current = screen
def back_to_chat(self):
self.ids.scr_mngr.transition.direction = 'right'
self.ids.scr_mngr.current = 'screen2'
def logout(self):
# logout function, returns to screen 1
self.ids.scr_mngr.current = 'screen1'
def oof(self, data):
self.ids.Chat_String.text = data
class UploadPopup(Popup):
def load(self, path, selection):
print(path, selection)
KV = """
#:import Toolbar kivymd.toolbar.Toolbar
#:import MDNavigationDrawer kivymd.navigationdrawer.MDNavigationDrawer
#:import NavigationLayout kivymd.navigationdrawer.NavigationLayout
#:import NavigationDrawerDivider kivymd.navigationdrawer.NavigationDrawerDivider
#:import NavigationDrawerToolbar kivymd.navigationdrawer.NavigationDrawerToolbar
#:import MDTextField kivymd.textfields.MDTextField
#:import MDSeparator kivymd.card.MDSeparator
#:import MDThemePicker kivymd.theme_picker.MDThemePicker
#:import CardTransition kivy.uix.screenmanager.CardTransition
#:import Factory kivy.factory.Factory
<MDCustomIconItem>:
text: root.text
AvatarSampleWidget:
source: root.icon
<UploadPopup>:
id: popup
title: "Upload"
BoxLayout:
FileChooserIconView:
id: FileChoose
pos_hint_x: 0.5
pos_hint_y: 0.5
on_selection: root.load(FileChoose.path, FileChoose.selection)
MDRaisedButton:
text: "Upload"
text_color: (0,0,0,1)
on_release: root.load(FileChoose.path, FileChoose.selection)
on_release: popup.dismiss()
MDRaisedButton:
text: "Close"
text_color: (0,0,0,1)
on_release: popup.dismiss()
nav_layout:
id: nav_layout
MDNavigationDrawer:
id: nav_drawer
drawer_logo: 'logo.png'
NavigationDrawerToolbar:
title: 'hello'
NavigationDrawerIconButton:
icon: 'settings'
text: 'Account Settings'
on_release: root.change_screen('screen3')
NavigationDrawerIconButton:
icon: 'face'
text: 'Friends'
on_release: root.print_text()
NavigationDrawerIconButton:
icon: 'logout'
text: 'Logout'
on_release: root.logout()
NavigationDrawerDivider:
height: dp(1)
MyLayout:
scr_mngr: scr_mngr
orientation: 'vertical'
ScreenManager:
transition: CardTransition()
id: scr_mngr
screen1: screen1
Screen:
id: screen1
name: 'screen1'
username: username
password: password
BoxLayout:
size_hint: None, None
size: dp(520), dp(340)
pos_hint: {'center_x': 0.5, 'center_y': 0.5}
BoxLayout:
orientation:'vertical'
padding: dp(20)
spacing:20
MDLabel:
text: 'Chat App'
theme_text_color: 'Secondary'
font_style:"Title"
size_hint_y: None
height: dp(36)
MDSeparator:
height: dp(1)
MDTextField:
id: username
hint_text: "Username "
size_hint_y: 0.9
helper_text_mode: "on_focus"
MDTextField:
id: password
hint_text: "Password "
helper_text_mode: "on_focus"
size_hint_y: 0.9
password: True
MDFlatButton:
text: "Login"
pos_hint: {'center_x': 0.5}
on_release: root.check_data_login()
MDLabel:
id: wrongpass
color: 1,0,1,1
text: ""
Screen:
name: 'screen2'
id: screen2
Toolbar:
id: toolbar
title: "Welcome ! "
pos_hint: {'center_x': 0.5, 'center_y': 0.96}
md_bg_color: app.theme_cls.primary_color
background_palette: 'DeepPurple'
background_hue: 'A400'
left_action_items: [['menu', lambda x: app.root.toggle_nav_drawer() ]]
right_action_items: [['animation', lambda x: MDThemePicker().open()], ['camera', lambda x: print('hello')]]
MDLabel:
font_style: 'Title'
theme_text_color: 'Primary'
text: "Data :"
height: self.texture_size[1] + dp(3)
halign: 'center'
pos_hint: {'center_x': 0.5, 'center_y': 0.5}
Screen:
name: 'screen3'
id: screen3
Toolbar:
id: tools
title: "Your Profile"
pos_hint: {'center_x': 0.5, 'center_y': 0.96}
md_bg_color: app.theme_cls.primary_color
background_palette: 'DeepPurple'
background_hue: 'A400'
left_action_items: [['arrow-left', lambda x: root.back_to_chat()]]
MDLabel:
id: Profile_String
font_size: 90
text: "XXX"
halign: 'center'
pos_hint: {'center_x': 0.5, 'center_y': 0.85}
Screen:
name: 'screen4'
id: screen4
Toolbar:
id: tools
title: "XXX"
pos_hint: {'center_x': 0.5, 'center_y': 0.96}
md_bg_color: app.theme_cls.primary_color
background_palette: 'DeepPurple'
background_hue: 'A400'
left_action_items: [['menu', lambda x: app.root.toggle_nav_drawer() ]]
right_action_items: [['animation', lambda x: MDThemePicker().open()], ['camera', lambda x: print('hello')]]
ScrollView:
id: sv
pos_hint: {'center_x': .55, 'y': .35}
MDLabel:
id: Chat_String
font_size: 40
text: "XXX"
MDTextField:
id: Input_String
hint_text: 'Enter Your Message...'
helper_text_mode: 'on_focus'
pos_hint: {'center_x': 0.35, 'center_y': 0.2}
size_hint_x: 0.6
multiline: True
MDRaisedButton:
id: Send_Button
text: 'Send'
pos_hint: {'center_x': 0.75, 'center_y': 0.2}
MDRaisedButton:
id: Choose_Image
text: 'Attach File'
pos_hint: {'center_x': 0.9, 'center_y': 0.2}
on_release: Factory.UploadPopup().open()
"""
class MDCustomIconItem(OneLineAvatarListItem):
icon = StringProperty('')
text = StringProperty()
def _set_active(self, active, list):
pass
class AvatarSampleWidget(ILeftBody, Image):
pass
class MyApp(App):
theme_cls = ThemeManager()
theme_cls.primary_palette = 'Blue'
title = "Navigation Drawer"
main_widget = None
def __getattr__(self, attr):
return super().__getattr__(attr)
def build(self):
self.main_widget = Builder.load_string(KV)
return self.main_widget
def callback(self, instance, value):
self.main_widget.ids.scr_mngr.current = 'screen4'
def recover_data(self):
print('started')
while True:
data = sock.recv(1024)
data = data.decode()
if data:
print(data)
data = data.split()
data = data[-1] + ": " + ' '.join(data[:-1])
r = data + '\n'
open('chat1.txt', 'a+').write(r)
e = open('chat1.txt', 'r').readlines()
nav_layout().oof('\n\r'.join(e))
print(data)
def on_start(self):
Thread(target=self.recover_data).start()
for i in range(15):
self.main_widget.ids.nav_drawer.add_widget(
MDCustomIconItem(
text="Item menu %d" % i,
icon='logo.png',
on_release=lambda x, y=i: self.callback(x, y)))
MyApp().run()
Output
Related
I created an app with a NavigationDrawer and everything work correctely, but the problem is to return to the first screen. I want to go back to the first screen (the Screen with name: 'Screen_*principal') when I click in the arrow-left in the MDTopAppBar in Login_*screen but nothing that I did worked.
KV file:
#: import RiseInTransition kivy.uix.screenmanager.RiseInTransition
#: import SlideTransition kivy.uix.screenmanager.SlideTransition
<CustomizeScreen#MDBoxLayout>
orientation: 'vertical'
text: ''
padding: 100
MDLabel:
text: root.text
halign: 'center'
pos_hint: {'center_x': .5}
MDFillRoundFlatButton:
text: 'Regresar'
pos_hint: {'center_x': .5}
on_release:
app.root.current = 'screen_principal'
app.root.transition = SlideTransition(direction= 'left' )
<DrawerClickableItem#MDNavigationDrawerItem>
focus_color: "#e7e4c0"
text_color: "#4a4939"
icon_color: "#4a4939"
ripple_color: "#c5bdd2"
selected_color: "#0c6c4d"
<DrawerLabelItem#MDNavigationDrawerItem>
text_color: "#4a4939"
icon_color: "#4a4939"
focus_behavior: False
selected_color: "#4a4939"
_no_ripple_effect: True
<Screen_principal>:
MDNavigationLayout:
MDScreen:
MDTopAppBar:
title: "Navigation Drawer"
elevation: 4
pos_hint: {"top": 1}
md_bg_color: "#e7e4c0"
specific_text_color: "#4a4939"
left_action_items: [["menu", lambda x: nav_drawer.set_state("open")]]
MDNavigationDrawer:
id: nav_drawer
radius: (0, 16, 16, 0)
MDNavigationDrawerMenu:
MDNavigationDrawerHeader:
title: "LOCATE YOU"
source: "icono.png"
spacing: "4dp"
padding: "12dp", 0, 0, "56dp"
DrawerClickableItem:
icon: "login"
text_right_color: "#4a4939"
text: "Iniciar Sesion"
on_press:
root.manager.current = "Login_screen"
DrawerClickableItem:
icon: "new-box"
text: "Registrarse"
text_right_color: "#4a4939"
on_press:
root.current = "screen_register"
DrawerClickableItem:
icon: "information-outline"
text: "Informacion"
text_right_color: "#4a4939"
on_press:
root.current = "scr1"
DrawerClickableItem:
icon: "microsoft-teams"
text: "Equipo"
text_right_color: "#4a4939"
on_press:
root.current = "scr1"
<Login_screen>:
MDBoxLayout:
orientation: 'vertical'
MDTopAppBar:
title: "Login"
md_bg_color: "#e7e4c0"
left_action_items: [["arrow-left", lambda *args : setattr(screen_manager, "current", "Screen_principal")]]
MDBoxLayout:
orientation: 'vertical'
size_hint_y: 0.3
Image:
source: 'usuario.png'
pos_hint: {'center_x': 0.5}
MDLabel:
text: 'Iniciar Sesion'
halign: 'center'
color: '#FF5A1E'
font_size: '35dp'
bold: True
pos_hint: {'center_y': .5}
MDBoxLayout:
orientation: 'vertical'
size_hint_y: 0.3
spacing: '12dp'
MDTextField:
id: user
hint_text: "Nombre de usuario"
icon_right: "account"
font_size: '25dp'
icon_right_color: '#FF5A1E'
pos_hint: {'center_x': 0.5}
MDTextField:
id: password
password:True
icon_right: "key-variant"
font_size: '25dp'
icon_right_color: '#FF5A1E'
hint_text: "Contrasena"
pos_hint: {'center_x': 0.5}
MDLabel:
id: signal_login
text: ''
halign: 'center'
color: '#FF5A1E'
font_size: '15dp'
MDBoxLayout:
orientation: 'vertical'
size_hint_y:0.4
spacing: '25dp'
MDFillRoundFlatButton:
id: bt_ingresar
text: 'Ingresar'
pos_hint: {'center_x':0.5}
on_release:
x = app.login_data()
root.current = 'open_screen' if x == True else None
MDFillRoundFlatButton:
md_bg_color: 1,1,1,1
Python file:
from kivymd.app import MDApp
from kivy.uix.screenmanager import ScreenManager
from kivy.lang import Builder
from kivy.uix.gridlayout import GridLayout
from kivy.core.window import Window
import requests
from kivy.uix.screenmanager import Screen, ScreenManager
from kivy.properties import BooleanProperty, ObjectProperty
Builder.load_file('diseno.kv')
class Screen_principal(Screen):
pass
class Login_screen(Screen):
pass
class TestApp(MDApp):
def build(self):
# Create the screen manager
sm = ScreenManager()
sm.add_widget(Screen_principal(name='Screen_principal'))
sm.add_widget(Login_screen(name='Login_screen'))
return sm
if __name__ == '__main__':
TestApp().run()
I tried a lot of things but nothing work, if someone could fix it I would be very grateful
In your kv, change:
left_action_items: [["arrow-left", lambda *args : setattr(screen_manager, "current", "Screen_principal")]]
to:
left_action_items: [["arrow-left", lambda *args : setattr(root.manager, "current", "Screen_principal")]]
This change accesses the ScreenManager by referencing root.manager, and the root in that context is the Login_screen.
I want to be able to click on MDFlatButton that says Štart and i want it to let's say for an example to call get_user_input(self) which would print whatever is inside text field. And I have been struggling with this for 2 whole days and i have no idea what to do, I am just a beginner and I have no clue what am I doing so sorry if it's messy. Ty for help, those are my files:
main.py file:
from kivy.core.window import Window
from kivy.lang import Builder
from kivy.properties import ObjectProperty
from kivymd.app import MDApp
from kivy.uix.screenmanager import Screen, ScreenManager
from kivymd.uix.menu import MDDropdownMenu
from kivymd.uix.textfield import MDTextField
from kivy.properties import StringProperty
class testy(Screen):
novy_test = ObjectProperty()
class Test(MDApp):
Window.size = (1170 / 3, 2532 / 3)
# input_number = ObjectProperty()
def build(self):
self.theme_cls.material_style = "M3"
self.theme_cls.theme_style = "Dark"
self.theme_cls.primary_palette = 'Gray'
return testy()
def get_user_input(self):
print(self.root.ids.my_textfield_1.ids.user.text)
def callback(self, button):
pass
class CustomOverFlowMenu(MDDropdownMenu):
# In this class you can set custom properties for the overflow menu.
pass
Test().run()
test.kv file:
#:import Factory kivy.factory.Factory
#:import CustomOverFlowMenu __main__.CustomOverFlowMenu
<testy>:
name:'testy'
id: testy
MDBoxLayout:
orientation: "vertical"
MDTopAppBar:
title: "MDTopAppBar"
use_overflow: True
overflow_cls: CustomOverFlowMenu()
specific_text_color: .51,.51,.51,1
md_bg_color: 0, 0, 0, 1
left_action_items: [["car", lambda x: Factory.novy_test().open(), '',"Nový test"]]
MDBottomNavigation:
panel_color: "black"
selected_color_background: "white"
text_color_active: "lightgray"
selected_color_background: 1, 1, 1, .4
MDBottomNavigationItem:
name: 'screen 1'
text: 'Testy'
icon: 'road-variant'
MDLabel:
text: 'Test'
halign: 'center'
MDBottomNavigationItem:
name: 'screen 2'
text: 'chyby'
icon: 'alert-circle'
MDLabel:
text: 'Chyby'
halign: 'center'
MDBottomNavigationItem:
name: 'screen 3'
text: 'Settings'
icon: 'cog'
MDLabel:
text: 'LinkedIN'
halign: 'center'
<novy_test#Popup>:
id:my_textfield_1
size_hint: .8, .45
title: 'Nový test'
separator_color: 'black'
title_align: 'center'
BoxLayout:
id: layout
spacing: 10
orientation:'vertical'
MDTextField:
id: user
hint_text: "Číslo testu"
mode: "round"
pos_hint: {"top": 1}
MDFlatButton:
text: 'Štart'
pos_hint: {'center_x': .5}
on_press: app.get_user_input()
MDFlatButton:
pos_hint: {'center_x': .5}
text:'test z nesprávnych'
MDFlatButton:
text:'test z neurobených'
pos_hint: {'center_x': .5}
MDFlatButton:
text:'test z neurobených'
pos_hint: {'center_x': .5}
MDFlatButton:
text:'test z neurobených'
pos_hint: {'center_x': .5}
I didn't perfectly understand all that you wanted to do, but in this example, the text a person types into the box will print. I moved the .kv language into a string just for convenience of creating a one-file runnable project. I tested it.
The main point is this code, inside the .kv file/kivy language you can use the id property to get a reference to the objects, and then the .text property of that object is sent as an argument to the function.
on_press: app.get_user_input(user.text)
runnable:
from kivy.core.window import Window
from kivy.lang import Builder
from kivymd.app import MDApp
from kivy.uix.screenmanager import Screen, ScreenManager
from kivymd.uix.menu import MDDropdownMenu
from kivy.uix.popup import Popup
from kivymd.uix.textfield import MDTextField
from kivy.properties import StringProperty
Builder.load_string('''
#:import Factory kivy.factory.Factory
<testy>:
name:'testy'
id: testy
MDBoxLayout:
orientation: "vertical"
MDTopAppBar:
title: "MDTopAppBar"
use_overflow: True
# overflow_cls: CustomOverFlowMenu()
specific_text_color: .51,.51,.51,1
md_bg_color: 0, 0, 0, 1
left_action_items: [["car", lambda x: Factory.NovyTest().open(), '',"Nový test"]]
MDBottomNavigation:
panel_color: "black"
selected_color_background: "white"
text_color_active: "lightgray"
selected_color_background: 1, 1, 1, .4
MDBottomNavigationItem:
name: 'screen 1'
text: 'Testy'
icon: 'road-variant'
MDLabel:
text: 'Test'
halign: 'center'
MDBottomNavigationItem:
name: 'screen 2'
text: 'chyby'
icon: 'alert-circle'
MDLabel:
text: 'Chyby'
halign: 'center'
MDBottomNavigationItem:
name: 'screen 3'
text: 'Settings'
icon: 'cog'
MDLabel:
text: 'LinkedIN'
halign: 'center'
<NovyTest#Popup>:
id:my_textfield_1
size_hint: .8, .45
title: 'Nový test'
separator_color: 'black'
title_align: 'center'
BoxLayout:
id: layout
spacing: 10
orientation:'vertical'
MDTextField:
id: user
hint_text: "Číslo testu"
mode: "round"
pos_hint: {"top": 1}
MDFlatButton:
text: 'Štart'
pos_hint: {'center_x': .5}
# inside .kv/kivy language you can use the id property
on_press: app.get_user_input(user.text)
MDFlatButton:
pos_hint: {'center_x': .5}
text:'test z nesprávnych'
MDFlatButton:
text:'test z neurobených'
pos_hint: {'center_x': .5}
MDFlatButton:
text:'test z neurobených'
pos_hint: {'center_x': .5}
MDFlatButton:
text:'test z neurobených'
pos_hint: {'center_x': .5}
'''
)
class NovyTest(Popup):
# just an example, not used in this code
def __init__(self, **kw):
super().__init__(**kw)
class testy(Screen):
# can list objects defined in .kv file and give them a type hint corresponding to object type
novy_test: NovyTest
def __init__(self, **kw):
super().__init__(**kw)
print("creating screen testy")
# novy_test = ObjectProperty()
class Test(MDApp):
Window.size = (1170 / 3, 2532 / 3)
# input_number = ObjectProperty()
def build(self) -> testy:
self.theme_cls.material_style = "M3"
self.theme_cls.theme_style = "Dark"
self.theme_cls.primary_palette = 'Gray'
return testy()
def get_user_input(self, input_text, *args):
print(f"{self} user input: {input_text}")
# print(self.root.ids.my_textfield_1.ids.user.text)
def callback(self, button):
pass
class CustomOverFlowMenu(MDDropdownMenu):
# In this class you can set custom properties for the overflow menu.
pass
Test().run()
end
I want to know the method of loading the second screen when authentication is passed.
I can call the second screen from the .kv file vi on_press or other methods. But I need to call from python code to check the authentication.
Can anyone help with my code?
Here is my code:
app.py
from kivy.lang import Builder
from kivymd.app import MDApp
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.screenmanager import Screen, ScreenManager
from kivy.properties import ObjectProperty
class my_layout(FloatLayout):
screen_mngr = ObjectProperty(None)
class myapp(MDApp):
def build(self):
self.theme_cls.theme_style = "Light"
self.theme_cls.primary_palette = "BlueGray"
return Builder.load_file("app.kv")
def logger(self):
if self.root.ids.user.text == 'admin' and self.root.ids.password.text=='admin':
self.root.ids.welcome_label.text = f'Sup {self.root.ids.user.text}!'
screen = Screen(name='screen2')
else:
self.root.ids.welcome_label.text = 'Wrong credentials'
if __name__ == "__main__":
myapp().run()
And here is my design kv file.
app.kv file:
my_layout:
screen_mngr: screen_mngr
ScreenManager:
id: screen_mngr
home: home
Screen:
id: home
name: 'home'
MDCard:
size_hint: None, None
size: 450, 600
pos_hint: {"center_x": 0.5, "center_y": 0.5}
elevation: 10
padding: 25
spacing: 25
orientation: 'vertical'
MDLabel:
id: welcome_label
text: "WELCOME"
font_size: 40
halign: 'center'
size_hint_y: None
height: self.texture_size[1]
padding_y: 15
MDTextField:
id: user
hint_text: "username"
icon_right: "account"
size_hint_x: None
width: 200
font_size: 18
pos_hint: {"center_x": 0.5}
MDTextField:
id: password
hint_text: "password"
icon_right: "eye-off"
size_hint_x: None
width: 200
font_size: 18
pos_hint: {"center_x": 0.5}
MDRoundFlatButton:
text: "LOG IN"
font_size: 12
pos_hint: {"center_x": 0.5}
on_press: screen2
Screen:
id: screen2
name: 'screen2'
MDRoundFlatButton:
text: "This is Second Screen\nGo to Screen1"
size_hint: 0.2,0.1
pos_hint: {"center_x":0.5,"y":0.5}
on_press: screen_mngr.current = "home"
A couple small problems:
First, in your kv you need to have your LOG IN Button call the code to handle the log in, like this:
MDRoundFlatButton:
text: "LOG IN"
font_size: 12
pos_hint: {"center_x": 0.5}
on_press: app.logger() # call the method that handles login
Then, in that method, you can change to the screen2 by using the current property of the ScreenManager, like this:
def logger(self):
if self.root.ids.user.text == 'admin' and self.root.ids.password.text=='admin':
self.root.ids.welcome_label.text = f'Sup {self.root.ids.user.text}!'
self.root.ids.screen_mngr.current = 'screen2' # go to screen2
# screen = Screen(name='screen2')
else:
self.root.ids.welcome_label.text = 'Wrong credentials'
I made a chat app but it was command line so I wanted to add some gui to it and after I started making app use ScreenManager the error start occurring.
Here is python code:
from kivymd.app import MDApp
from kivy.lang.builder import Builder
from kivy.uix.screenmanager import Screen, ScreenManager
import socket
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
s.connect(("192.168.41.20", 5002))
except Exception as e:
print(e)
class LoginScreen(Screen):
pass
class MainScreen(Screen):
pass
class SettingScreen(Screen):
pass
class WindowManager(ScreenManager):
pass
class MainApp(MDApp):
def build(self):
return Builder.load_file('kivy.kv')
def logger(self):
self.root.ids.welcome_label.text = ('Hello ' + self.root.ids.user.text + '!')
s.send(bytes('#u'+self.root.ids.user.text, 'utf-8'))
s.send(bytes('#p'+self.root.ids.password.text, 'utf-8'))
def clear(self):
self.root.ids.user.text = ""
self.root.ids.welcome_label.text = "WELCOME"
self.root.ids.password.text = ""
MainApp().run()
And here is my kivymd .kv code:
WindowManager:
LoginScreen:
MainScreen:
SettingScreen:
<LoginScreen>:
name: "login"
Widget:
MDCard:
size_hint: None, None
size: 300, 400
pos_hint: {"center_x": 0.5, "center_y":0.5 }
elevation: 10
padding: 25
spacing: 25
orientation: "vertical"
MDLabel:
id: welcome_label
text: "BALCOME!"
halign: 'center'
font_size: 40
size_hint_y: None
height: self.texture_size[1]
padding_y: 15
MDTextFieldRound:
id: user
hint_text: "username"
icon_right: "account"
width: 200
size_hint_x: None
font_size: 18
pos_hint: {"center_x": 0.5}
MDTextFieldRound:
id: password
hint_text: "password"
icon_right: "eye-off"
width: 200
size_hint_x: None
font_size: 18
pos_hint: {"center_x": 0.5}
password: True
MDRoundFlatButton:
text: "LOGIN"
font_size: 12
pos_hint: {"center_x": 0.5}
on_press: app.logger()
on_release: app.root.current = "main"
MDRoundFlatButton:
text: "CLEAR"
font_size: 12
pos_hint: {"center_x": 0.5}
on_press: app.clear()
Widget:
size_hint_y: None
height: 10
<MainScreen>:
name: "main"
MDRoundFlatButton:
text: "Get LOst"
pos_hint: {"center_y: 0.5"}
<SettingScreen>:
name: "satt"
MDRoundFlatButton:
text: "Get Lost"
pos_hint: {"center_y: 0.5"}
And when I run it this error comes:
AttributeError: 'set' object has no attribute 'items' error occurring when I trying to run my code.
Any help is highly appreciated.
I am trying to restructure the kivymd project file but I am not able to place the navigation bar at the place at which it is normally. I cannot see why this is happening (see pictures and code below).
This is how it looks like
and this is how it should look like
I am using the three files app.py, app.kv and labels.py (for injecting labels from a *.py file).
# app.kv
# -*- coding: utf-8 -*-
import os
import kivy.app
from kivy.lang import Builder
from application.kivymd.list import BaseListItem
from application.kivymd.material_resources import DEVICE_TYPE
from application.kivymd.navigationdrawer import MDNavigationDrawer, NavigationDrawerHeaderBase
from application.kivymd.theming import ThemeManager
# User defined imports
from kivy.core.window import Window
Window.fullscreen = "auto"
class HackedDemoNavDrawer(MDNavigationDrawer):
# DO NOT USE
def add_widget(self, widget, index=0):
if issubclass(widget.__class__, BaseListItem):
self._list.add_widget(widget, index)
if len(self._list.children) == 1:
widget._active = True
self.active_item = widget
# widget.bind(on_release=lambda x: self.panel.toggle_state())
widget.bind(on_release=lambda x: x._set_active(True, list=self))
elif issubclass(widget.__class__, NavigationDrawerHeaderBase):
self._header_container.add_widget(widget)
else:
super(MDNavigationDrawer, self).add_widget(widget, index)
class MainApp(kivy.app.App):
theme_cls = ThemeManager()
title = "Application"
def build(self):
main_widget = Builder.load_file(
os.path.join(os.path.dirname(__file__), "./app.kv")
)
# self.theme_cls.theme_style = 'Dark'
main_widget.ids.text_field_error.bind(
on_text_validate=self.set_error_message,
on_focus=self.set_error_message)
self.bottom_navigation_remove_mobile(main_widget)
return main_widget
def bottom_navigation_remove_mobile(self, widget):
# Removes some items from bottom-navigation demo when on mobile
if DEVICE_TYPE == 'mobile':
widget.ids.bottom_navigation_demo.remove_widget(widget.ids.bottom_navigation_desktop_2)
if DEVICE_TYPE == 'mobile' or DEVICE_TYPE == 'tablet':
widget.ids.bottom_navigation_demo.remove_widget(widget.ids.bottom_navigation_desktop_1)
def set_error_message(self, *args):
if len(self.root.ids.text_field_error.text) == 2:
self.root.ids.text_field_error.error = True
else:
self.root.ids.text_field_error.error = False
def on_pause(self):
return True
def on_stop(self):
pass
if __name__ == '__main__':
MainApp().run()
This is the app.kv file which is injected into the app.py file
# app.kv
#:import Toolbar application.kivymd.toolbar.Toolbar
#:import MDNavigationDrawer application.kivymd.navigationdrawer.MDNavigationDrawer
#:import NavigationLayout application.kivymd.navigationdrawer.NavigationLayout
#:import NavigationDrawerDivider application.kivymd.navigationdrawer.NavigationDrawerDivider
#:import NavigationDrawerToolbar application.kivymd.navigationdrawer.NavigationDrawerToolbar
#:import NavigationDrawerSubheader application.kivymd.navigationdrawer.NavigationDrawerSubheader
#:import MDCheckbox application.kivymd.selectioncontrols.MDCheckbox
#:import MDSwitch application.kivymd.selectioncontrols.MDSwitch
#:import MDTextField application.kivymd.textfields.MDTextField
#:import MDThemePicker application.kivymd.theme_picker.MDThemePicker
#:import labels application.labels
NavigationLayout:
id: nav_layout
MDNavigationDrawer:
id: nav_drawer
NavigationDrawerToolbar:
title: labels.NAVIGATION
NavigationDrawerIconButton:
icon: 'checkbox-blank-circle'
text: labels.DASHBOARD
on_release: app.root.ids.scr_mngr.current = 'dashboard'
NavigationDrawerIconButton:
icon: 'checkbox-blank-circle'
text: labels.SYSTEM_INSPECTOR
on_release: app.root.ids.scr_mngr.current = 'system_inspector'
NavigationDrawerIconButton:
icon: 'checkbox-blank-circle'
text: labels.SYSTEM_PARAMETERS
on_release: app.root.ids.scr_mngr.current = 'system_parameters'
BoxLayout:
orientation: 'vertical'
halign: "center"
Toolbar:
id: toolbar
title: labels.APPLICATION_NAME
md_bg_color: app.theme_cls.primary_color
background_palette: 'Primary'
background_hue: '500'
left_action_items: [['menu', lambda x: app.root.toggle_nav_drawer()]]
#right_action_items: [['dots-vertical', lambda x: app.root.toggle_nav_drawer()]]
ScreenManager:
id: scr_mngr
Screen:
name: 'dashboard'
MDLabel:
font_style: 'Body1'
theme_text_color: 'Primary'
text: "This is the dashboard!"
size_hint_x:None
width: '250dp'
halign: "center"
pos_hint: {"center_x": 0.50, "center_y": 0.75}
MDCheckbox:
id: grp_chkbox_1
group: 'test'
size_hint: None, None
size: dp(48), dp(48)
pos_hint: {'center_x': 0.25, 'center_y': 0.5}
MDCheckbox:
id: grp_chkbox_2
group: 'test'
size_hint: None, None
size: dp(48), dp(48)
pos_hint: {'center_x': 0.5, 'center_y': 0.5}
MDSwitch:
size_hint: None, None
size: dp(36), dp(48)
pos_hint: {'center_x': 0.75, 'center_y': 0.5}
_active: False
Screen:
name: 'system_inspector'
MDLabel:
font_style: 'Body1'
theme_text_color: 'Primary'
text: "This is the system_inspector page!"
size_hint_x:None
width: '250dp'
halign: "center"
pos_hint: {"center_x": 0.50, "center_y": 0.75}
MDCheckbox:
id: grp_chkbox_1
group: 'test'
size_hint: None, None
size: dp(48), dp(48)
pos_hint: {'center_x': 0.25, 'center_y': 0.5}
MDCheckbox:
id: grp_chkbox_2
group: 'test'
size_hint: None, None
size: dp(48), dp(48)
pos_hint: {'center_x': 0.5, 'center_y': 0.5}
MDSwitch:
size_hint: None, None
size: dp(36), dp(48)
pos_hint: {'center_x': 0.75, 'center_y': 0.5}
_active: False
Screen:
name: 'system_parameters'
BoxLayout:
orientation: "horizontal"
BoxLayout:
orientation: 'vertical'
size_hint_y: None
height: self.minimum_height
padding: dp(48)
spacing: 10
MDTextField:
hint_text: "No helper text"
input_filter: "float"
MDTextField:
hint_text: "Helper text on focus"
helper_text: "This will disappear when you click off"
helper_text_mode: "on_focus"
input_filter: "int"
MDTextField:
hint_text: "No helper text"
MDTextField:
hint_text: "Helper text on focus"
helper_text: "This will disappear when you click off"
helper_text_mode: "on_focus"
BoxLayout:
orientation: 'vertical'
size_hint_y: None
height: self.minimum_height
padding: dp(48)
spacing: 10
MDTextField:
hint_text: "No helper text"
MDTextField:
hint_text: "Helper text on focus"
helper_text: "This will disappear when you click off"
helper_text_mode: "on_focus"
MDTextField:
hint_text: "No helper text"
MDTextField:
hint_text: "Helper text on focus"
helper_text: "This will disappear when you click off"
helper_text_mode: "on_focus"
Screen:
name: 'textfields'
ScrollView:
BoxLayout:
orientation: 'vertical'
size_hint_y: None
height: self.minimum_height
padding: dp(48)
spacing: 10
MDTextField:
hint_text: "No helper text"
MDTextField:
hint_text: "Helper text on focus"
helper_text: "This will disappear when you click off"
helper_text_mode: "on_focus"
MDTextField:
hint_text: "Persistent helper text"
helper_text: "Text is always here"
helper_text_mode: "persistent"
MDTextField:
id: text_field_error
hint_text: "Helper text on error (Hit Enter with two characters here)"
helper_text: "Two is my least favorite number"
helper_text_mode: "on_error"
MDTextField:
hint_text: "Max text length = 10"
max_text_length: 10
MDTextField:
hint_text: "required = True"
required: True
helper_text_mode: "on_error"
MDTextField:
multiline: True
hint_text: "Multi-line text"
helper_text: "Messages are also supported here"
helper_text_mode: "persistent"
MDTextField:
hint_text: "color_mode = \'accent\'"
color_mode: 'accent'
MDTextField:
hint_text: "color_mode = \'custom\'"
color_mode: 'custom'
helper_text_mode: "on_focus"
helper_text: "Color is defined by \'line_color_focus\' property"
line_color_focus: self.theme_cls.opposite_bg_normal # This is the color used by the textfield
MDTextField:
hint_text: "disabled = True"
disabled: True
Screen:
name: 'nav_drawer'
HackedDemoNavDrawer:
# NavigationDrawerToolbar:
# title: "Navigation Drawer Widgets"
NavigationDrawerIconButton:
icon: 'checkbox-blank-circle'
text: "Badge text ---->"
badge_text: "99+"
NavigationDrawerIconButton:
active_color_type: 'accent'
text: "Accent active color"
NavigationDrawerIconButton:
active_color_type: 'custom'
text: "Custom active color"
active_color: [1, 0, 1, 1]
NavigationDrawerIconButton:
use_active: False
text: "Use active = False"
NavigationDrawerIconButton:
text: "Different icon"
icon: 'alarm'
NavigationDrawerDivider:
NavigationDrawerSubheader:
text: "NavigationDrawerSubheader"
NavigationDrawerIconButton:
text: "NavigationDrawerDivider \/"
NavigationDrawerDivider:
Here is the labels.py file for injecting the labels into the kv file.
# labels.py
APPLICATION_NAME = "Application"
NAVIGATION = "Navigation"
DASHBOARD = "Dashboard"
SYSTEM_INSPECTOR = "System Inspector"
SYSTEM_PARAMETERS = "System Parameters"
Solution
You might have a kv file with a name, main.kv
With KivyMD installed on my machine, and some minor changes, the KivyMD App ran fine.
Example
app.py
# app.py
# -*- coding: utf-8 -*-
import os
from kivy.app import App
from kivy.lang import Builder
from kivymd.list import BaseListItem
from kivymd.material_resources import DEVICE_TYPE
from kivymd.navigationdrawer import MDNavigationDrawer, NavigationDrawerHeaderBase
from kivymd.theming import ThemeManager
# User defined imports
from kivy.core.window import Window
# Window.fullscreen = "auto"
class HackedDemoNavDrawer(MDNavigationDrawer):
# DO NOT USE
def add_widget(self, widget, index=0):
if issubclass(widget.__class__, BaseListItem):
self._list.add_widget(widget, index)
if len(self._list.children) == 1:
widget._active = True
self.active_item = widget
# widget.bind(on_release=lambda x: self.panel.toggle_state())
widget.bind(on_release=lambda x: x._set_active(True, list=self))
elif issubclass(widget.__class__, NavigationDrawerHeaderBase):
self._header_container.add_widget(widget)
else:
super(MDNavigationDrawer, self).add_widget(widget, index)
class MainApp(App):
theme_cls = ThemeManager()
title = "Application"
def build(self):
main_widget = Builder.load_file(
os.path.join(os.path.dirname(__file__), "./app.kv")
)
# self.theme_cls.theme_style = 'Dark'
main_widget.ids.text_field_error.bind(
on_text_validate=self.set_error_message,
on_focus=self.set_error_message)
self.bottom_navigation_remove_mobile(main_widget)
return main_widget
def bottom_navigation_remove_mobile(self, widget):
# Removes some items from bottom-navigation demo when on mobile
if DEVICE_TYPE == 'mobile':
widget.ids.bottom_navigation_demo.remove_widget(widget.ids.bottom_navigation_desktop_2)
if DEVICE_TYPE == 'mobile' or DEVICE_TYPE == 'tablet':
widget.ids.bottom_navigation_demo.remove_widget(widget.ids.bottom_navigation_desktop_1)
def set_error_message(self, *args):
if len(self.root.ids.text_field_error.text) == 2:
self.root.ids.text_field_error.error = True
else:
self.root.ids.text_field_error.error = False
def on_pause(self):
return True
def on_stop(self):
pass
if __name__ == '__main__':
MainApp().run()
labels.py
# labels.py
APPLICATION_NAME = "Application"
NAVIGATION = "Navigation"
DASHBOARD = "Dashboard"
SYSTEM_INSPECTOR = "System Inspector"
SYSTEM_PARAMETERS = "System Parameters"
app.kv
# app.kv
#:kivy 1.11.0
#:import Toolbar kivymd.toolbar.Toolbar
#:import MDNavigationDrawer kivymd.navigationdrawer.MDNavigationDrawer
#:import NavigationLayout kivymd.navigationdrawer.NavigationLayout
#:import NavigationDrawerDivider kivymd.navigationdrawer.NavigationDrawerDivider
#:import NavigationDrawerToolbar kivymd.navigationdrawer.NavigationDrawerToolbar
#:import NavigationDrawerSubheader kivymd.navigationdrawer.NavigationDrawerSubheader
#:import MDCheckbox kivymd.selectioncontrols.MDCheckbox
#:import MDSwitch kivymd.selectioncontrols.MDSwitch
#:import MDTextField kivymd.textfields.MDTextField
#:import MDThemePicker kivymd.theme_picker.MDThemePicker
#:import labels labels
NavigationLayout:
id: nav_layout
MDNavigationDrawer:
id: nav_drawer
NavigationDrawerToolbar:
title: labels.NAVIGATION
NavigationDrawerIconButton:
icon: 'checkbox-blank-circle'
text: labels.DASHBOARD
on_release: app.root.ids.scr_mngr.current = 'dashboard'
NavigationDrawerIconButton:
icon: 'checkbox-blank-circle'
text: labels.SYSTEM_INSPECTOR
on_release: app.root.ids.scr_mngr.current = 'system_inspector'
NavigationDrawerIconButton:
icon: 'checkbox-blank-circle'
text: labels.SYSTEM_PARAMETERS
on_release: app.root.ids.scr_mngr.current = 'system_parameters'
BoxLayout:
orientation: 'vertical'
halign: "center"
Toolbar:
id: toolbar
title: labels.APPLICATION_NAME
md_bg_color: app.theme_cls.primary_color
background_palette: 'Primary'
background_hue: '500'
left_action_items: [['menu', lambda x: app.root.toggle_nav_drawer()]]
#right_action_items: [['dots-vertical', lambda x: app.root.toggle_nav_drawer()]]
ScreenManager:
id: scr_mngr
Screen:
name: 'dashboard'
MDLabel:
font_style: 'Body1'
theme_text_color: 'Primary'
text: "This is the dashboard!"
size_hint_x:None
width: '250dp'
halign: "center"
pos_hint: {"center_x": 0.50, "center_y": 0.75}
MDCheckbox:
id: grp_chkbox_1
group: 'test'
size_hint: None, None
size: dp(48), dp(48)
pos_hint: {'center_x': 0.25, 'center_y': 0.5}
MDCheckbox:
id: grp_chkbox_2
group: 'test'
size_hint: None, None
size: dp(48), dp(48)
pos_hint: {'center_x': 0.5, 'center_y': 0.5}
MDSwitch:
size_hint: None, None
size: dp(36), dp(48)
pos_hint: {'center_x': 0.75, 'center_y': 0.5}
_active: False
Screen:
name: 'system_inspector'
MDLabel:
font_style: 'Body1'
theme_text_color: 'Primary'
text: "This is the system_inspector page!"
size_hint_x:None
width: '250dp'
halign: "center"
pos_hint: {"center_x": 0.50, "center_y": 0.75}
MDCheckbox:
id: grp_chkbox_1
group: 'test'
size_hint: None, None
size: dp(48), dp(48)
pos_hint: {'center_x': 0.25, 'center_y': 0.5}
MDCheckbox:
id: grp_chkbox_2
group: 'test'
size_hint: None, None
size: dp(48), dp(48)
pos_hint: {'center_x': 0.5, 'center_y': 0.5}
MDSwitch:
size_hint: None, None
size: dp(36), dp(48)
pos_hint: {'center_x': 0.75, 'center_y': 0.5}
_active: False
Screen:
name: 'system_parameters'
BoxLayout:
orientation: "horizontal"
BoxLayout:
orientation: 'vertical'
size_hint_y: None
height: self.minimum_height
padding: dp(48)
spacing: 10
MDTextField:
hint_text: "No helper text"
input_filter: "float"
MDTextField:
hint_text: "Helper text on focus"
helper_text: "This will disappear when you click off"
helper_text_mode: "on_focus"
input_filter: "int"
MDTextField:
hint_text: "No helper text"
MDTextField:
hint_text: "Helper text on focus"
helper_text: "This will disappear when you click off"
helper_text_mode: "on_focus"
BoxLayout:
orientation: 'vertical'
size_hint_y: None
height: self.minimum_height
padding: dp(48)
spacing: 10
MDTextField:
hint_text: "No helper text"
MDTextField:
hint_text: "Helper text on focus"
helper_text: "This will disappear when you click off"
helper_text_mode: "on_focus"
MDTextField:
hint_text: "No helper text"
MDTextField:
hint_text: "Helper text on focus"
helper_text: "This will disappear when you click off"
helper_text_mode: "on_focus"
Screen:
name: 'textfields'
ScrollView:
BoxLayout:
orientation: 'vertical'
size_hint_y: None
height: self.minimum_height
padding: dp(48)
spacing: 10
MDTextField:
hint_text: "No helper text"
MDTextField:
hint_text: "Helper text on focus"
helper_text: "This will disappear when you click off"
helper_text_mode: "on_focus"
MDTextField:
hint_text: "Persistent helper text"
helper_text: "Text is always here"
helper_text_mode: "persistent"
MDTextField:
id: text_field_error
hint_text: "Helper text on error (Hit Enter with two characters here)"
helper_text: "Two is my least favorite number"
helper_text_mode: "on_error"
MDTextField:
hint_text: "Max text length = 10"
max_text_length: 10
MDTextField:
hint_text: "required = True"
required: True
helper_text_mode: "on_error"
MDTextField:
multiline: True
hint_text: "Multi-line text"
helper_text: "Messages are also supported here"
helper_text_mode: "persistent"
MDTextField:
hint_text: "color_mode = \'accent\'"
color_mode: 'accent'
MDTextField:
hint_text: "color_mode = \'custom\'"
color_mode: 'custom'
helper_text_mode: "on_focus"
helper_text: "Color is defined by \'line_color_focus\' property"
line_color_focus: self.theme_cls.opposite_bg_normal # This is the color used by the textfield
MDTextField:
hint_text: "disabled = True"
disabled: True
Screen:
name: 'nav_drawer'
HackedDemoNavDrawer:
# NavigationDrawerToolbar:
# title: "Navigation Drawer Widgets"
NavigationDrawerIconButton:
icon: 'checkbox-blank-circle'
text: "Badge text ---->"
badge_text: "99+"
NavigationDrawerIconButton:
active_color_type: 'accent'
text: "Accent active color"
NavigationDrawerIconButton:
active_color_type: 'custom'
text: "Custom active color"
active_color: [1, 0, 1, 1]
NavigationDrawerIconButton:
use_active: False
text: "Use active = False"
NavigationDrawerIconButton:
text: "Different icon"
icon: 'alarm'
NavigationDrawerDivider:
NavigationDrawerSubheader:
text: "NavigationDrawerSubheader"
NavigationDrawerIconButton:
text: "NavigationDrawerDivider \/"
NavigationDrawerDivider:
Output