I need to get a kivymd MDDialig dialog box with a list. When setting the type parameter to MDDialog by default or "custom", it displays only the title of the dialog box, but not the items themselves. Setting the type parameter to "simple" causes an error.
from kivymd.app import MDApp
from kivy.lang import Builder
from kivymd.uix.dialog import MDDialog
from kivymd.uix.list import OneLineListItem
main = '''
AnchorLayout:
padding: "25sp"
anchor_x: "center"
anchor_y: "top"
TwoLineListItem:
text: 'key'
secondary_text: 'value_1'
on_press: app.open_dialog()
'''
class Example(MDApp):
def build(self):
return Builder.load_string(main)
def open_dialog(self):
dialog = MDDialog(
title="key",
items=[
OneLineListItem(text="value_1"),
OneLineListItem(text="value_2")
]
)
dialog.open()
Example().run()
When setting type to "simple" an error occurs
File "kivy/properties.pyx", line 961, in kivy.properties.ObservableDict.__getattr__
KeyError: '\_left_container'
File "kivy/properties.pyx", line 964, in kivy.properties.ObservableDict.__getattr__
AttributeError: 'super' object has no attribute '__getattr__'
An example of using the widget was taken from the kivyMD documentation. The buttons display correctly, but the elements do not. Any hints will help.
Below is an image that shows the problem.
enter image description here
from kivy.lang import Builder
from kivy.properties import StringProperty
from kivymd.app import MDApp
from kivymd.uix.dialog import MDDialog
from kivymd.uix.list import OneLineAvatarListItem
KV = '''
<Item>
ImageLeftWidget:
source: root.source
MDFloatLayout:
MDFlatButton:
text: "ALERT DIALOG"
pos_hint: {'center_x': .5, 'center_y': .5}
on_release: app.show_simple_dialog()
'''
class Item(OneLineAvatarListItem):
divider = None
source = StringProperty()
class Example(MDApp):
dialog = None
def build(self):
self.theme_cls.theme_style = "Dark"
self.theme_cls.primary_palette = "Orange"
return Builder.load_string(KV)
def show_simple_dialog(self):
if not self.dialog:
self.dialog = MDDialog(
title="Set backup account",
type="simple",
items=[
Item(text="user01#gmail.com", source="kivymd/images/logo/kivymd-icon-128.png"),
Item(text="user02#gmail.com", source="data/logo/kivy-icon-128.png"),
],
)
self.dialog.open()
Example().run()
https://kivymd.readthedocs.io/en/1.1.1/components/dialog/#kivymd.uix.dialog.dialog.MDDialog.items
Related
I'm learning Kivy and I'm on the MDExpansionPanel widget.
Data source from a JSON I use the keys to assemble my panels and the values to compose my Contents.
It happens that I'm able to do it but an extra line always appears in my contents.
I would like your help to delete this line.
I will post my code below:
from kivy.lang import Builder
from kivymd.app import MDApp
from kivymd.uix.boxlayout import MDBoxLayout
from kivymd.uix.expansionpanel import MDExpansionPanel, MDExpansionPanelOneLine
from kivy.properties import StringProperty, ObjectProperty
json_data = {'01001BA476': {'price': '74.73',
'product_code': '000003',
'quantity': '100'},
'0100251633': {'price': '92.07',
'product_code': '000156',
'quantity': '1000'}}
KV = '''
<ClassDetails>
orientation: 'vertical'
adaptive_height: True
OneLineIconListItem:
id: info_line
text: root.text
on_press: root.action()
IconLeftWidget:
icon: 'star'
on_press: print(f'star pressed on line: {info_line.text}')
ScrollView:
MDGridLayout:
id: box
cols: 1
adaptive_height: True
'''
class ClassDetails(MDBoxLayout):
text = StringProperty()
action = ObjectProperty()
class InvoicePanel(MDExpansionPanel):
pass
class Test(MDApp):
def build(self):
return Builder.load_string(KV)
def fechar_pedido(self):
print('You clicked on the information line')
def on_start(self):
for class_title, class_details in json_data.items():
cd = ClassDetails()
expansion_panel = InvoicePanel(panel_cls=MDExpansionPanelOneLine(text=f'Invoice #: {class_title}'), content=cd)
self.root.ids.box.add_widget(expansion_panel)
for item in class_details.items():
cd.add_widget(ClassDetails(
text=str(class_details.values()), action=self.fechar_pedido))
Test().run()
I think the extra line is coming from setting your initial content to a ClassDetails instance, which has a OneLineIconListItem in its definition. Try replacing the content with a simple MDBoxLayout instead:
def on_start(self):
for class_title, class_details in json_data.items():
print(class_title, class_details)
# cd = ClassDetails()
cd = MDBoxLayout(orientation='vertical', adaptive_height=True)
expansion_panel = InvoicePanel(panel_cls=MDExpansionPanelOneLine(text=f'Invoice #: {class_title}'), content=cd)
self.root.ids.box.add_widget(expansion_panel)
for item in class_details.items():
print('\titem:', item)
cd.add_widget(ClassDetails(
text=str(class_details.values()), action=self.fechar_pedido))
I'm not sure how to dynamically resize the MDDatePicker with the screen size, it doesn't adjust correctly like Labels and Buttons but rather adjusts erratically.
I couldn't find much on KivyMD documentation like there in on Kivy widgets.
You've got to click the Select Date button to open the Date Picker
py file
import kivy
from kivy.app import App
from kivy.properties import ObjectProperty, StringProperty, NumericProperty, ListProperty
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.lang import Builder
from kivy.uix.popup import Popup
from kivy.uix.label import Label
from kivy.core.text import Label as CoreLabel
from kivy.uix.button import Button
from kivy.core.window import Window
from kivymd.theming import ThemeManager
import mysql.connector
from kivymd.uix.picker import MDDatePicker
from kivy.uix.scrollview import ScrollView
Window.clearcolor = (1,1,1,1)
class Information(Screen):
def select_date(self):
picker = MDDatePicker(callback=self.got_date)
picker.open()
def got_date(self, the_date):
print(the_date)
class WindowManager(ScreenManager):
pass
class MyApp(App):
theme_cls = ThemeManager()
def build(self):
kv = Builder.load_file("kivy.kv")
sm = WindowManager()
screens = [Information(name="information")]
for screen in screens:
sm.add_widget(screen)
sm.current = "information"
return sm
if __name__ == '__main__':
MyApp().run()
kv file
<Information>:
name: "information"
NavigationLayout:
id: nav_layout
MDNavigationDrawer:
NavigationDrawerIconButton:
text: "Test"
on_release: app.root.current = "login"
FloatLayout:
MDToolbar:
pos_hint: {'top': 1}
md_bg_color: 0.2, 0.6, 1, 1
left_action_items: [['menu', lambda x: root.ids.nav_layout.toggle_nav_drawer()]]
MDRaisedButton:
text: "Select date"
pos_hint: {"x": 0.35, "top": 0.6}
on_release: root.select_date()
Thanks in advance
you could try under MDRaisedButton putting this:
MDRaisedButton:
size: root.width, root.height
or where ever you need to resize. The size commands format is size: x, y in kv lang
Am working on a Project that has a RecycleView that contains details of patients.My aim is that when i click on a specific patient on the recycleView row, it should take me to specific dynamic page layout containing specific details of the selected patient in the RecycleView without using the Screen Manager, the switching of dynamic pages.how can i go about this?
i have created a method called change_dynamic_Layout() for switching dynamic pages and it works fine when using the normal button to call it. I have used a print statement in the method to show if the method is executed or not. But when i use the SelectableButton,the print statement is executed but the statement for changing page-layout is not. No errors is shown and the dynamic page does not change. Here is the code try to run it and see what am talking about?
Demo.py
from kivy.app import App
from kivy.properties import ObjectProperty, StringProperty, ListProperty,
NumericProperty
from kivy.uix.behaviors import ButtonBehavior
from kivy.graphics import Color, Rectangle
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.gridlayout import GridLayout
from kivy.factory import Factory
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.lang import Builder
from kivy.uix.recycleview import RecycleView
from kivy.uix.recycleview.views import RecycleDataViewBehavior
from kivy.uix.label import Label
from kivy.uix.button import Button
from kivy.properties import BooleanProperty
from kivy.uix.recycleboxlayout import RecycleBoxLayout
from kivy.uix.recyclegridlayout import RecycleGridLayout
from kivy.uix.behaviors import FocusBehavior
from kivy.uix.recycleview.layout import LayoutSelectionBehavior
lost = Builder.load_file('Demo.kv')
class SelectableRecycleGridLayout(FocusBehavior, LayoutSelectionBehavior,
RecycleGridLayout):
''' Adds selection and focus behaviour to the view. '''
class SelectableButton(RecycleDataViewBehavior, Button):
''' Add selection support to the Label '''
index = None
selected = BooleanProperty(False)
selectable = BooleanProperty(True)
def refresh_view_attrs(self, rv, index, data):
''' Catch and handle the view changes '''
self.index = index
return super(SelectableButton, self).refresh_view_attrs(
rv, index, data)
def on_touch_down(self, touch):
''' Add selection on touch down '''
if super(SelectableButton, self).on_touch_down(touch):
return True
if self.collide_point(*touch.pos) and self.selectable:
return self.parent.select_with_touch(self.index, touch)
def apply_selection(self, rv, index, is_selected):
''' Respond to the selection of items in the view. '''
self.selected = is_selected
#selectablebutton to call the change_dynamic_Layout() method in patient class
def on_enter(self):
layout=Patient()
layout.change_dynamic_Layout()
class victor(BoxLayout):
pass
class Patient(Screen):
manage_prescription: ObjectProperty(None)
#Method to change the dynamic pagelayout
def change_dynamic_Layout(self):
layout = Factory.victor()
self.manage_prescription.clear_widgets()
self.manage_prescription.add_widget(layout)
print ('pressed')
class DemoApp(App):
title = 'Hospital Management System'
def build(self):
n= Patient()
return n
if __name__ == "__main__":
DemoApp().run()
demo.kv
<Patient>:
manage_prescription:manage_prescription
BoxLayout:
GridLayout :
cols:1
BoxLayout:
id:manage_prescription
orientation:'vertical'
BoxLayout:
size_hint_y:None
height:40
Button:
text:"NO."
font_size: 25
Button:
text:"Date"
font_size: 25
Button:
text:"Patient"
font_size: 25
Button:
text:"Doctor"
font_size: 25
on_press: root.change_dynamic_Layout()
BoxLayout:
RecycleView:
bar_width: 10
bar_color: 1, 0, 0, 1 # red
bar_inactive_color: 0, 0, 1, 1 # blue
#effect_cls: "ScrollEffect"
scroll_type: ['bars']
viewclass: 'SelectableButton'
data:[{'text': str(x)} for x in range(20)]
SelectableRecycleGridLayout:
cols:4
default_size: None, dp(56)
default_size_hint:1, None
size_hint_y: None
height: self.minimum_height
orientation: 'vertical'
multiselect: True
touch_multiselect: True
<victor>:
Label:
text:" Switched to specific page for patient's details"
<SelectableButton>:
# Draw a background to indicate selection
canvas.before:
Color:
rgba: (.0, 0.9, .1, .3) if self.selected else (1, 1, 1, 1)
Rectangle:
pos: self.pos
size: self.size
on_press: root.on_enter()
Any insight or help is much appreciated, thanks in advance.
The problem is that your on_enter method of the SelectableButton is creating a new Patient layout (Screen), and calling the change_dynamic_Layout method of that new Patient Screen. That newly created Patient Screen is not the one displayed in your app, so it has no effect on what you see. You actually want to call change_dynamic_Layout on the displayed Patient Screen. One way of doing this is to access it via App.get_running_app().root. So that your on_enter method can be changed to:
def on_enter(self):
#layout=Patient()
layout = App.get_running_app().root
layout.change_dynamic_Layout()
Here is the entire python file:
from kivy.app import App
from kivy.properties import ObjectProperty, StringProperty, ListProperty, NumericProperty
from kivy.uix.behaviors import ButtonBehavior
from kivy.graphics import Color, Rectangle
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.gridlayout import GridLayout
from kivy.factory import Factory
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.lang import Builder
from kivy.uix.recycleview import RecycleView
from kivy.uix.recycleview.views import RecycleDataViewBehavior
from kivy.uix.label import Label
from kivy.uix.button import Button
from kivy.properties import BooleanProperty
from kivy.uix.recycleboxlayout import RecycleBoxLayout
from kivy.uix.recyclegridlayout import RecycleGridLayout
from kivy.uix.behaviors import FocusBehavior
from kivy.uix.recycleview.layout import LayoutSelectionBehavior
lost = Builder.load_file('Demo.kv')
class SelectableRecycleGridLayout(FocusBehavior, LayoutSelectionBehavior,
RecycleGridLayout):
''' Adds selection and focus behaviour to the view. '''
class SelectableButton(RecycleDataViewBehavior, Button):
''' Add selection support to the Label '''
index = None
selected = BooleanProperty(False)
selectable = BooleanProperty(True)
def refresh_view_attrs(self, rv, index, data):
''' Catch and handle the view changes '''
self.index = index
return super(SelectableButton, self).refresh_view_attrs(
rv, index, data)
def on_touch_down(self, touch):
''' Add selection on touch down '''
if super(SelectableButton, self).on_touch_down(touch):
return True
if self.collide_point(*touch.pos) and self.selectable:
return self.parent.select_with_touch(self.index, touch)
def apply_selection(self, rv, index, is_selected):
''' Respond to the selection of items in the view. '''
self.selected = is_selected
#selectablebutton to call the change_dynamic_Layout() method in patient class
def on_enter(self):
#layout=Patient()
layout = App.get_running_app().root
layout.change_dynamic_Layout()
class victor(BoxLayout):
pass
class Patient(Screen):
manage_prescription: ObjectProperty(None)
#Method to change the dynamic pagelayout
def change_dynamic_Layout(self):
layout = Factory.victor()
self.manage_prescription.clear_widgets()
self.manage_prescription.add_widget(layout)
print ('pressed')
class DemoApp(App):
title = 'Hospital Management System'
def build(self):
n= Patient()
return n
if __name__ == "__main__":
DemoApp().run()
And here is the Demo.kv:
<Patient>:
manage_prescription:manage_prescription
BoxLayout:
GridLayout :
cols:1
BoxLayout:
id:manage_prescription
orientation:'vertical'
BoxLayout:
size_hint_y:None
height:40
Button:
text:"NO."
font_size: 25
Button:
text:"Date"
font_size: 25
Button:
text:"Patient"
font_size: 25
Button:
text:"Doctor"
font_size: 25
on_press: root.change_dynamic_Layout()
BoxLayout:
RecycleView:
bar_width: 10
bar_color: 1, 0, 0, 1 # red
bar_inactive_color: 0, 0, 1, 1 # blue
#effect_cls: "ScrollEffect"
scroll_type: ['bars']
viewclass: 'SelectableButton'
data:[{'text': str(x)} for x in range(20)]
SelectableRecycleGridLayout:
cols:4
default_size: None, dp(56)
default_size_hint:1, None
size_hint_y: None
height: self.minimum_height
orientation: 'vertical'
multiselect: True
touch_multiselect: True
<victor>:
Label:
text:" Switched to specific page for patient's details"
<SelectableButton>:
# Draw a background to indicate selection
canvas.before:
Color:
rgba: (.0, 0.9, .1, .3) if self.selected else (1, 1, 1, 1)
Rectangle:
pos: self.pos
size: self.size
on_press: root.on_enter()
I'm trying to make a simple application in Python 3.5 and kivy that starts with a simple screen and when you click on it, goes to another one which shows 3 lists that let you chose the data:
The Python file:
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.screenmanager import ScreenManager, Screen, FadeTransition
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.listview import ListItemButton
from kivy.properties import ListProperty
from dataTopy import rlists
# Transition des ecrans:
class MainScreen(Screen):
pass
class AnotherScreen(Screen):
pass
class ScreenManagement(ScreenManager):
pass
presentation = Builder.load_file("ex44.kv")
#
class FirstListItemButton(ListItemButton):
pass
class SecondListItemButton(ListItemButton):
pass
class ThirdListItemButton(ListItemButton):
pass
class Ex44(BoxLayout):
d1 = ListProperty([str(i) for i in range(1990,2014)] )
d2 = ListProperty(['']*100)
d3 = ListProperty(['']*100)
def change(self,c):
try: self.d2,self.d3 = rlists(int(c.text))
except:
import os
CurDir = os.getcwd()
print('Can not find data in ' + CurDir)
def change1(self,c):
print('M => '+c.text)
def change2(self,c):
print('F => '+c.text)
class Ex44App(App):
def build(self):
return presentation
if __name__ == '__main__':
Ex44App().run()
The kivy file:
#: import FadeTransition kivy.uix.screenmanager.FadeTransition
#: import ListAdapter kivy.adapters.listadapter.ListAdapter
#: import ex44 ex44
ScreenManagement:
transition: FadeTransition()
MainScreen:
AnotherScreen:
<MainScreen>:
name: "main"
Button:
on_release: app.root.current = "other"
text: "Next Screen"
font_size: 50
<AnotherScreen>:
name: "other"
BoxLayout:
Ex44
Button:
color: 0,1,0,1
font_size: 25
size_hint: 0.3,0.2
text: "Back Home"
on_release: app.root.current = "main"
pos_hint: {"right":1, "top":1}
<FirstListItemButton>:
on_press: app.root.change(*args)
<SecondListItemButton>:
on_press: app.root.change1(*args)
<ThirdListItemButton>:
on_press: app.root.change2(*args)
<Ex44>:
ListView:
adapter:
ListAdapter(data=root.d1,
selection_mode='single',
cls=ex44.FirstListItemButton)
ListView:
adapter:
ListAdapter(data=root.d2,
selection_mode='single',
cls=ex44.SecondListItemButton)
ListView:
adapter:
ListAdapter(data=root.d3,
selection_mode='single',
cls=ex44.ThirdListItemButton)
When I try to run the app, it tells me: "Unknown class "
It is weird because the class Ex44 works alone but not when I'm trying to add it into the main application logic.
I've tried to return a widget instead of a BoxLayout for the class, to return Ex44 alone in the kivy file, etc. but I always get the same error in return.
Is it possible to return a BoxLayout inside another one in Kivy?
You are building the kv file too soon (before the class is defined). move the Builder.from_file call to the build method
...
def build(self):
return Builder.load_file("ex44.kv")
I've been searching around for answers on stackoverflow for a couple of days now to be honest but I could not find the thing for me, lets say I have a text file named bind.txt with a couple lines of text, how can i load that text file to a kivy label? be it directly or indirectly. I've been trying to teach myself python and this is kind of in the way of me building my first app. Thank you in advance, and heres the code.
from kivy.app import App
from kivy.uix.label import Label
from kivy.uix.scrollview import ScrollView
from kivy.uix.widget import Widget
from kivy.uix.boxlayout import BoxLayout
from kivy.lang import Builder
from kivy.properties import StringProperty
from kivy.uix.screenmanager import ScreenManager, Screen, FadeTransition
class MainScreen(Screen):
pass
class MainLabel(ScrollView):
text = StringProperty("")
class ScreenManagement(ScreenManager):
pass
presentation = Builder.load_file("bind.kv")
class MainApp(App):
def build(self):
return presentation
if __name__ == "__main__":
MainApp().run()
And the kv file.
#: import FadeTransition kivy.uix.screenmanager.FadeTransition
ScreenManagement:
transition: FadeTransition()
MainScreen:
<MainLabel>:
text: #bind.txt here, somehow..
Label:
text: root.text
font_size: 15
text_size: self.width, None
size_hint_y: None
height: self.texture_size[1]
<MainScreen>:
name: "main"
canvas.before:
Rectangle:
pos: self.pos
size: self.size
source: 'img/Fundal.png'
MainLabel
You can open file in reading mode, store contents in a variable and assign it to the text property.
For an example
with open("bind.txt") as f:
contents = f.read()
main_label.text = contents # main_label is an instance of kivy's Label class.