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Kivy self manager get screen - not working

recently I try to make that app with python and kivy. After tons of hours googling everything together i more or less have everything i want. Only one thing is missing:
I have several screens. At the beginning of the App I have a menu. After that i have lots of questions; all of them have the same text and buttons in the bottom of the screen. I managed to make that the following way:
<firstquestion>:
name: "firstquestion"
GridLayout:
cols: 1
size_hint_y: 1
GridLayout:
cols: 1
NeuLabelinBox:
text: "Here the Question"
GridLayout:
cols: 1
size_hint_y: 0.1
UnteresMenue:
Please notice "UnteresMenue" which refer another Class in the kv language. I think I somehow mixed 2 Screens together in one. The kv code of "UnteresMenue"
<UnteresMenue>:
name: "UnteresMenue"
#id: UnteresMenue
GridLayout:
cols: 1
NeuButton:
text: root.labeltext
Now for the python part:
class UnteresMenue(Screen):
labeltext = StringProperty("Answer")
That works fine. But now I want to change the text of the label in this "UnteresMenue", when I press a certain button at the beginning of the app (Start Questions). The label in the "Untermenue" should change to a certain text. So to do this:
text: "Exam"
self.manager.get_screen('UnteresMenue').labeltext = text
For all other classes this method works fine. But not for that certain class "UnteresMenue". Is it because it is implemented in the question and therefor kv does not recognize its properties?
For any small hints I would be more than grateful!
Here an "Mini" Example:
In the Main Menu you get to the "Exam" Section (Press Here in the example). While entering this Section (Prüfungsmodus) the property of the questions should change. "Press Here" again to get to the questions.
Normally it says in the Top of the questions "This should change" And THIS is supposed to change the label into "Zeit" while entering the Prüfungsmodus Screen (Class def on_enter, in the python file), but it doesn't...
Python File:
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.screenmanager import ScreenManager, Screen, TransitionBase
from kivy.properties import ObjectProperty, NumericProperty
from kivy.uix.popup import Popup
from kivy.uix.label import Label
from kivy.core.text import LabelBase
from kivy.core.window import Window
from kivy.graphics import Color, InstructionGroup, Line, Rectangle
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.button import Button
from kivy.properties import ListProperty
from kivy.uix.textinput import TextInput
from kivy.uix.checkbox import CheckBox
from kivy.uix.widget import Widget
from kivy.config import Config
from kivy.properties import StringProperty
from kivy.clock import Clock
from functools import partial
from kivy.uix.image import Image
from kivy.garden.navigationdrawer import NavigationDrawer as ND
from kivy.uix.scatter import Scatter
import random
import time
Window.clearcolor = (0.2,0.2, 0.2,1)
Window.size = (480, 800)
#--------------------------------- Hauptmenü -------------------------------------------
class hauptmenue(Screen, Widget):
pass
class Pruefungsmodus(Screen):
labeltext2 = StringProperty("hi")
def on_enter(self):
text = "Zeit"
self.manager.get_screen('OberesMenue').labeltext = text #DAS Klappt nicht
def StartPruefung(self):
sm.current = "ersteFrage"
class UnteresMenue(Screen):
background_color_Kappa = ListProperty([0.2,0.2,0.2, 1])
class OberesMenue(Screen):
BildLabeltext = StringProperty("Bilder\Loesung_Bild_pressed.png")
BildLabeltext2 = StringProperty("Bilder\Loesung_Bild.png")
labeltext = StringProperty("This should change")
class ersteFrage(Screen):
pass
class WindowManager(ScreenManager):
pass
kv = Builder.load_file("my.kv")
sm = WindowManager()
sm.add_widget(hauptmenue(name="hauptmenue"))
sm.add_widget(Pruefungsmodus(name="Pruefungsmodus"))
sm.add_widget(OberesMenue(name="OberesMenue"))
sm.add_widget(UnteresMenue(name="UnteresMenue"))
sm.add_widget(ersteFrage(name="ersteFrage"))
sm.current = "hauptmenue"
class Vorbrereitung(App):
pruefung = ObjectProperty(None)
def build(self):
return sm
if __name__ == "__main__":
Vorbrereitung().run()
my.kv file :
#:include alleFragen.kv
<NeuLabel2#Label>:
halign: "center"
color:1,1,1,1 # <-----------
canvas.before:
Color:
rgba: 0.2,0.2, 0.2,1
Rectangle:
pos: self.pos
size: self.size
<NeuLabelinBox#Label>:
font_size: "22sp"
color:0,0,0,1 # <-----------
canvas.before:
Color:
rgba: 0.949019608, 0.949019608, 0.949019608, 1
Rectangle:
pos: self.pos
size: self.size
<NeuCheckBox#CheckBox>:
color: 0, 0, 0, 1
canvas.before:
Color:
rgba: 0.949019608, 0.949019608, 0.949019608, 1
Rectangle:
pos: self.pos
size: self.size
<NeuButton#Button>:
font_size: "22sp"
background_normal: ''
#background_normal: "background.png"
background_color: 0.92549,0.92549,0.92549, 1
color:0,0,0,1 # <-----------
canvas.before:
Color:
rgba: 0.2,0.2, 0.2,1
Rectangle:
pos: self.pos
size: self.size
<NeuButtonKappa#Button>:
font_size: "40sp"
background_normal: ''
background_color: 0.2,0.2,0.2, 1
color:1,1,1,1 # <-----------
canvas.before:
Color:
rgba: 0.2,0.2, 0.2,1
Rectangle:
pos: self.pos
size: self.size
#---------------------------------- Hauptmenue ---------------------------------------------------------------------------------
<hauptmenue>:
name: "Hauptmenue"
GridLayout:
cols:1
#spacing: 20
GridLayout:
cols:1
padding: 20
size_hint_y: 0.2
NeuLabel2:
size_hint_x: 0.6
text: ""
font_size: (root.width**2 + root.height**2) / 13**4
halign: 'center'
valign: 'middle'
GridLayout:
cols:2
padding: 30
spacing: 20
size_hint_y: 0.5
BoxLayout:
NeuButton:
text: ''
BoxLayout:
NeuButton:
text: 'PRESS HERE'
on_release:
app.root.current = "Pruefungsmodus"
BoxLayout:
NeuButton:
text: ""
halign: 'center'
valign: 'middle'
BoxLayout:
NeuButton:
text: ""
BoxLayout:
padding: 10
size_hint_y: 0.15
NeuButton:
text: ''
#---------------------------------- Pruefungsmodus ---------------------------------------------------------------------------------
<Pruefungsmodus>:
name: "Pruefungsmodus"
#background_color: 1, 1, 1, 1
id: pruefungsmudos
GridLayout:
cols:1
#spacing: 20
GridLayout:
cols:3
padding: 20
size_hint_y: 0.2
Image:
size_hint_x: 0.2
source:"Bilder\Logo.png"
NeuLabel2:
size_hint_x: 0.6
text: 'Pr\u00FCfungs\nmodus'
font_size: (root.width**2 + root.height**2) / 12**4
halign: 'center'
valign: 'middle'
Image:
size_hint_x: 0.2
source:"Bilder\Logo2.png"
GridLayout:
cols:1
padding: 30
spacing: 10
size_hint_y: 0.4
NeuLabelinBox:
id: text2
text: root.labeltext2
color: 0,0,0,1 # <-----------
canvas.before:
Color:
rgba: 0.949019608, 0.949019608, 0.949019608, 1
Rectangle:
pos: self.pos
size: self.size
GridLayout:
cols:2
padding: 30
size_hint_y: 0.2
BoxLayout:
padding: 30
spacing: 10
NeuButton:
size_hint_x: 0.5
text: "Press Here"
on_release:
app.root.current = "ersteFrage"
NeuButton:
size_hint_x: 0.5
text: ""
on_release:
app.root.current = "hauptmenue"
#---------------------------------- Erste Frage ---------------------------------------------------------------------------------
<ersteFrage>:
name: "ersteFrage"
GridLayout:
cols: 1
size_hint_y: 1
GridLayout:
cols: 1
size_hint_y: 0.08
OberesMenue:
GridLayout:
cols: 1
size_hint_y: 0.1
NeuLabel2:
font_size: "18sp"
text: "Wie lautet......."
GridLayout:
cols: 1
size_hint_y: 0.7
padding: 20
background_color: 0.92549,0.92549,0.92549, 1
rows: 2
BoxLayout:
orientation:'horizontal'
NeuLabelinBox:
text: "h+u=ZU"
NeuCheckBox:
NeuLabelinBox:
text: "h+u=ZU"
NeuCheckBox:
BoxLayout:
orientation:'horizontal'
NeuLabelinBox:
text: "h+u=ZU"
NeuCheckBox:
NeuLabelinBox:
text: "h+u=ZU"
NeuCheckBox:
GridLayout:
cols: 1
size_hint_y: 0.1
UnteresMenue:
and the outsourced Top and Button Menu:
alleFragen.kv
<OberesMenue>:
id: OberesMenueee
name: "OberesMenue"
GridLayout:
cols:1
GridLayout:
#size_hint_y: 0.05
spacing: 20
cols: 3
NeuButton:
text: ""
size_hint_x: 0.16
background_color: 1,1,1, 1
background_down: root.BildLabeltext
background_normal: root.BildLabeltext2
color:1,1,1,1 # <-----------
canvas.before:
Color:
rgba: 0.2,0.2, 0.2,1
Rectangle:
pos: self.pos
size: self.size
NeuLabel2:
size_hint_x: 0.8
text: root.labeltext
NeuButtonKappa:
size_hint_x: 0.1
text: "MENU"
background_down: "Bilder\HintergurndFarbe_app.png"
on_release:
app.root.current = "hauptmenue"
<UnteresMenue>:
name: "UnteresMenue"
id: UnteresMenuee
GridLayout:
cols: 5
spacing: 20
padding: 20
NeuButton:
text: "<=="
NeuButton:
text: "<"
NeuButtonKappa:
text: 'k'
#background_color: root.background_color_Kappa
background_down: "Bilder\HintergurndFarbe_app.png"
NeuButton:
text: ">"
NeuButton:
text: "==>"

The problem is that you have two different instances of the OberesMenue Screen.
There is one created in your python:
sm.add_widget(OberesMenue(name="OberesMenue"))
And you have another created in your kv:
<ersteFrage>:
name: "ersteFrage"
GridLayout:
cols: 1
size_hint_y: 1
GridLayout:
cols: 1
size_hint_y: 0.08
OberesMenue:
In order to acces the second instance of OberesMenue, you can add an id:
<ersteFrage>:
name: "ersteFrage"
GridLayout:
cols: 1
size_hint_y: 1
GridLayout:
cols: 1
size_hint_y: 0.08
OberesMenue:
id: in_ersteFrage
Then in your on_enter() method of Pruefungsmodus, you can change that instance by using:
def on_enter(self):
text = "Zeit"
self.manager.get_screen('ersteFrage').ids.in_ersteFrage.labeltext = text #DAS Klappt nicht
Note that this changes the Label in the second instance of OberesMenue, but has no effect on the first. Your original code was changing the first instance, but not the second. And you can't put the same instance in both places at the same time, since a Widget can have only one parent at a time.
So, if those instances are intended to be identical, then you need to change the Label in both.
If you really want to share the same instance, you can keep your own record of where it is and use remove_widget() and add_widget() to move it from one parent to another.

Using Custom font in kivy [duplicate]

This question already has answers here:
Kivy Text Input for Arabic Text
(2 answers)
Closed 3 years ago.
I'm trying to create a simple kivy software and I need to use custom Arabic font for button.text.
I've included the custom font in the file and tried but that is how it looks like:
I am not sure if it is an encoding problem or I need to use something different in Kivy
here is my code :
main.py
import kivy
from kivy.app import App
from kivy.uix.widget import Widget
from kivy.core.window import Window
class MyGrid(Widget):
pass
class BackOffice(App):
def build(self):
return MyGrid()
if __name__ == '__main__':
BackOffice().run()
backoffice.kv
#:import utils kivy.utils
<MyGrid>
canvas.before:
Color:
rgba: utils.get_color_from_hex('#a1d0f4')
Rectangle:
pos: self.pos
size: self.size
GridLayout:
cols: 1
size: root.width, root.height
Label:
text: 'logo here'
GridLayout:
cols: 2
Label:
text: ' vision logo goes here'
GridLayout:
cols:1
Button:
size: 700, 120
size_hint: None, None # <---
background_color: utils.get_color_from_hex('#0a74c4')
font_name: 'fonts/Shoroq-Font.ttf'
text: "إعدادت المستخدمين"
Image:
source: 'images/conference-256.png'
y: self.parent.y + 5
x: self.parent.x + 70
Button:
text:'button'
background_color: utils.get_color_from_hex('#0a74c4')
Button:
text:'button'
background_color: utils.get_color_from_hex('#0a74c4')
Button:
text:'button'
background_color: utils.get_color_from_hex('#0a74c4')
GridLayout:
cols: 3
Button:
text: 'button'
background_color: utils.get_color_from_hex('#ff0000')
Button:
text: 'button'
background_color: utils.get_color_from_hex('#0a74c4')
Label:
text: 'some text here'
* update *
I also tried to use Arabic reshaper based on This question but it still gives the same result !! as the question was about Textinput, not text viewing in general.

The solution to use arabic.reshaper and bidi.algorithm
Example
main.py
from kivy.app import App
from kivy.uix.widget import Widget
from kivy.lang import Builder
from kivy.properties import StringProperty
import arabic_reshaper
from bidi.algorithm import get_display
Builder.load_file("main.kv")
class MyGrid(Widget):
bidi_text = StringProperty('')
def __init__(self, **kwargs):
super(MyGrid, self).__init__(**kwargs)
reshaped_text = arabic_reshaper.reshape(u"إعدادت المستخدمين")
self.bidi_text = get_display(reshaped_text)
class BackOffice(App):
def build(self):
return MyGrid()
if __name__ == '__main__':
BackOffice().run()
main.kv
#:import utils kivy.utils
<MyGrid>:
canvas.before:
Color:
rgba: utils.get_color_from_hex('#a1d0f4')
Rectangle:
pos: self.pos
size: self.size
GridLayout:
cols: 1
size: root.width, root.height
Label:
text: 'logo here'
GridLayout:
cols: 2
Label:
text: ' vision logo goes here'
GridLayout:
cols:1
Button:
size: 700, 120
size_hint: None, None # <---
background_color: utils.get_color_from_hex('#0a74c4')
font_name: 'fonts/Shoroq-Font.ttf'
text: root.bidi_text
font_size: sp(20)
Image:
source: 'images/conference-256.png'
y: self.parent.y + 5
x: self.parent.x + 70
Button:
text:'button'
background_color: utils.get_color_from_hex('#0a74c4')
Button:
text:'button'
background_color: utils.get_color_from_hex('#0a74c4')
Button:
text:'button'
background_color: utils.get_color_from_hex('#0a74c4')
GridLayout:
cols: 3
Button:
text: 'button'
background_color: utils.get_color_from_hex('#ff0000')
Button:
text: 'button'
background_color: utils.get_color_from_hex('#0a74c4')
Label:
text: 'some text here'
Output

Kivy 1.10.1 Slider duplicating itself

I'm currently trying to create a simple Slider that will control the size of text in my application. The problem I'm running into though is that even though the slider functions as I intended, it seems to create another version of itself beneath the first slider that can't be moved. You can see how it looks in the provided image here [alt text: a screenshot of a rudimentary user interface showing a kivy slider. The slider has been moved forward behind it there is another copy in the default position] (as you can see the Label text inside the BoxLayout is also getting overlapped). I'm currently using Kivy 1.10.1 and Python 3.7.2.
Here is my Python script:
# -*- coding: utf-8 -*-
import kivy
kivy.require('1.10.1')
from kivy.app import App
from kivy.core.window import Window
from kivy.lang import Builder
from kivy.uix.boxlayout import BoxLayout
from kivy.properties import ObjectProperty
from kivy.uix.actionbar import ActionBar
from kivy.uix.screenmanager import ScreenManager, Screen, FadeTransition
from kivy.graphics.vertex_instructions import (Rectangle, Ellipse, Line)
from kivy.graphics.context_instructions import Color
from kivy.uix.checkbox import CheckBox
from kivy.uix.slider import Slider
#Window.size = (360/1.2,740/1.2)
class HomeScreen(Screen):
pass
class OptionsScreen(Screen):
pass
class TutorialScreen(Screen):
pass
class ScreenController(ScreenManager):
pass
look = Builder.load_file('main.kv')
class MainApp(App):
def build(self):
return look
if __name__ == '__main__':
MainApp().run()
And here is the relevant piece of Kivy language meant to create the slider on my
<OptionsScreen>
name: 'option'
BoxLayout:
orientation:'vertical'
BoxLayout:
orientation:'horizontal'
size_hint_y: 1/3
Label:
text:'Text size'
font_size: textsize.value
size_hint_x:.5
Slider:
id:textsize
min: 5
max: 25
value:15
step: 1
size_hint_x:.5
Though if you want to read the entire Kivy language document I'm posting it here as well.
#: import FadeTransition kivy.uix.screenmanager.FadeTransition
# Reference main.py
#: import main main
#: import Slider kivy.uix.slider
#: import ActionBar kivy.uix.actionbar
#: import Window kivy.core.window
ScreenController:
transition: FadeTransition()
HomeScreen:
OptionsScreen:
TutorialScreen:
<HomeScreen>
name: 'home'
BoxLayout:
id:'hem'
orientation:'vertical'
BoxLayout:
size_hint_x: 1
orientation:'horizontal'
canvas:
Color:
rgba: 0,1,0,1
Rectangle
size: self.size
pos: self.pos
BoxLayout:
orientation:'horizontal'
BoxLayout:
size_hint_x: .5
orientation:'horizontal'
canvas:
Color:
rgba: 1,0,1,1
Rectangle
size: self.size
pos: self.pos
BoxLayout:
size_hint_x: .5
orientation:'horizontal'
canvas:
Color:
rgba: 1,1,0,1
Rectangle
size: self.size
pos: self.pos
ActionBar:
pos_hint: {'top':1}
ActionView:
use_separator: True
ActionPrevious:
title: 'Fredde & Kribbas kivy'
with_previous: False
ActionOverflow:
ActionGroup:
text: 'Group1'
ActionButton:
text: 'home'
on_touch_down: app.root.current = 'home'
ActionButton:
text: 'Options'
on_touch_down: app.root.current = 'option'
ActionButton:
text: 'Tutorial'
on_touch_down: app.root.current = 'tut'
<OptionsScreen>
name: 'option'
BoxLayout:
orientation:'vertical'
BoxLayout:
orientation:'horizontal'
size_hint_y: 1/3
Label:
text:'Text size'
font_size: textsize.value
size_hint_x:.5
Slider:
id:textsize
min: 5
max: 25
value:15
step: 1
size_hint_x:.5
BoxLayout:
#fontsize checkbox
orientation:'horizontal'
size_hint_y: 1/3
BoxLayout:
orientation:'vertical'
Label:
text: 'Nightmode'
CheckBox:
id:default
size_hint_y: None
active: True
height:'50dp'
group:'g1'
BoxLayout:
orientation:'vertical'
Label:
text: 'Daymode'
CheckBox:
id:stor
size_hint_y: None
height:'50dp'
group:'g1'
BoxLayout:
orientation:'horizontal'
size_hint_y: 1/3
canvas:
Color:
rgba: 0,0,1,1
Rectangle
size: self.size
pos: self.pos
ActionBar:
pos_hint: {'top':1}
ActionView:
use_separator: True
ActionPrevious:
title: 'Fredde & Kribbas kivy'
with_previous: False
ActionOverflow:
ActionGroup:
text: 'Group1'
ActionButton:
text: 'home'
on_touch_down: app.root.current = 'home'
ActionButton:
text: 'Options'
on_touch_down: app.root.current = 'option'
ActionButton:
text: 'Tutorial'
on_touch_down: app.root.current = 'tut'
<TutorialScreen>
name: 'tut'
ActionBar:
pos_hint: {'top':1}
ActionView:
use_separator: True
ActionPrevious:
title: 'Fredde & Kribbas kivy'
with_previous: False
ActionOverflow:
ActionGroup:
text: 'Group1'
ActionButton:
text: 'home'
on_touch_down: app.root.current = 'home'
ActionButton:
text: 'Options'
on_touch_down: app.root.current = 'option'
ActionButton:
text: 'Tutorial'
on_touch_down: app.root.current = 'tut'
Does anyone know why I might be having this issue? I'm fairly new to kivy but I've played around with the slider before and never had these issues until now.

You don't need to load your kv file inside your python code since you already named your kv file as main.kv.
You can try to remove this line:
look = Builder.load_file('main.kv')
and change this line:
return look
to:
pass

Python - Kivy - Screen Manager - Changing a Button Text with Text Input issue

I'm currently working with Kivy for GUI Design I was looking for a way to change a button text with a TextInput from another screen.
My Screen 1 has a button that will work as a "label", there I have another button to go to screen 2.
Screen 2 is a Keypad with a Textinput on it, there I put the numbers that I want to set in the button "label" from screen 1.
With a button called "ENTER" I want to go back to the screen 1 and update the new text in the button "label". But I can't figure out how to do it properly.
Here is a little piece of the project code main.py :
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.screenmanager import ScreenManager, Screen, FadeTransition
from kivy.uix.label import Label
from kivy.uix.widget import Widget
from kivy.graphics import Line
from kivy.uix.gridlayout import GridLayout
from kivy.uix.textinput import TextInput
class Main_Screen(Screen):
pass
class Input_Number_Inch_Screen(Screen):
pass
class Input_Screen(Screen):
pass
class Screen_Management(ScreenManager):
pass
presentation = Builder.load_file("screen3.kv")
class Screen3App(App):
def build(self):
return presentation
Screen3App().run()
the screen3.kv file:
Screen_Management:
id: screen_management
transition: FadeTransition()
Main_Screen:
id: main_screen
name: "main_screen_name"
manager: screen_management
Input_Screen:
id: tire_setup_screen_id
name: "tire_setup_screen_name"
manager: screen_management
Input_Number_Inch_Screen:
name: "inch_screen"
manager: screen_management
<Main_Screen>:
canvas:
Color:
rgb: [.30, .30, .30]
Rectangle:
pos: self.pos
size: self.size
Button:
background_color: .52, .52, .52, 1
bold: 1
color: .0078,.67,.69,1
size_hint: .2, 1
pos_hint: {"x": 0, "center_y": .5}
on_release: app.root.current = "tire_setup_screen_name"
text: " INPUTS "
font_size: 30
# Screen 1: Input Screen
<Input_Screen>:
canvas:
Color:
rgb: [.30, .30, .30]
Rectangle:
pos: self.pos
size: self.size
GridLayout:
cols: 2
pos: (160,150)
size_hint: (.8, .8)
Button:
background_color: .52, .52, .52, 1
bold: 1
color: .0078,.67,.69,1
font_size: 30
text: "INPUT\n(Inch)"
size_hint_x: None
width: 150
on_release: app.root.current = "inch_screen"
# This button will go to the screen2
Button:
id: inch_input
background_color: .52, .52, .52, 1
bold: 1
color: .0078,.67,.69,1
font_size: 100
text: "THIS IS THE TEXT THAT I WANT TO UPDATE"
# Screen 2: Input Inch Screen Data
<Input_Number_Inch_Screen>:
canvas:
Color:
rgb: [.30, .30, .30]
Rectangle:
pos: self.pos
size: self.size
GridLayout:
orientation: 'vertical'
display: entry
rows: 6
padding: 10
spacing: 10
# This is the TextInput
BoxLayout:
TextInput:
id: entry
font_size: 75
multiline: False
# This will be the button that would go back to the screen and update
# the button text with the new text entered in the TextInput
BoxLayout:
spacing: 10
Button:
background_color: .52, .52, .52, 1
bold: 1
color: .0078,.67,.69,1
font_size: 40
text:"ENTER"
on_release: app.root.current = "tire_setup_screen_name"
on_press: app.root.inch_input.text = entry.text
Any comment to help it would be great, thanks for your time.

Please replace the following in screen3.kv:
on_press: app.root.inch_input.text = entry.text
with:
on_press: root.manager.ids.tire_setup_screen_id.ids.inch_input.text = entry.text
Example
main.py
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.screenmanager import ScreenManager, Screen, FadeTransition
from kivy.uix.label import Label
from kivy.uix.widget import Widget
from kivy.graphics import Line
from kivy.uix.gridlayout import GridLayout
from kivy.uix.textinput import TextInput
class Main_Screen(Screen):
pass
class Input_Number_Inch_Screen(Screen):
pass
class Input_Screen(Screen):
pass
class Screen_Management(ScreenManager):
pass
presentation = Builder.load_file("screen3.kv")
class Screen3App(App):
def build(self):
return presentation
if __name__ == "__main__":
Screen3App().run()
screen3.kv
#:kivy 1.10.0
#:import FadeTransition kivy.uix.screenmanager.FadeTransition
Screen_Management:
id: screen_management
transition: FadeTransition()
Main_Screen:
id: main_screen
name: "main_screen_name"
manager: screen_management
Input_Screen:
id: tire_setup_screen_id
name: "tire_setup_screen_name"
manager: screen_management
Input_Number_Inch_Screen:
name: "inch_screen"
manager: screen_management
<Main_Screen>:
canvas:
Color:
rgb: [.30, .30, .30]
Rectangle:
pos: self.pos
size: self.size
Button:
background_color: .52, .52, .52, 1
bold: 1
color: .0078,.67,.69,1
size_hint: .2, 1
pos_hint: {"x": 0, "center_y": .5}
on_release: root.manager.current = "tire_setup_screen_name"
text: " INPUTS "
font_size: 30
# Screen 1: Input Screen
<Input_Screen>:
canvas:
Color:
rgb: [.30, .30, .30]
Rectangle:
pos: self.pos
size: self.size
GridLayout:
cols: 2
pos: (160,150)
size_hint: (.8, .8)
Button:
background_color: .52, .52, .52, 1
bold: 1
color: .0078,.67,.69,1
font_size: 30
text: "INPUT\n(Inch)"
size_hint_x: None
width: 150
on_release: root.manager.current = "inch_screen"
# This button will go to the screen2
Button:
id: inch_input
background_color: .52, .52, .52, 1
bold: 1
color: .0078,.67,.69,1
font_size: 100
text: "THIS IS THE TEXT THAT I WANT TO UPDATE"
# Screen 2: Input Inch Screen Data
<Input_Number_Inch_Screen>:
canvas:
Color:
rgb: [.30, .30, .30]
Rectangle:
pos: self.pos
size: self.size
GridLayout:
orientation: 'vertical'
display: entry
rows: 6
padding: 10
spacing: 10
# This is the TextInput
BoxLayout:
TextInput:
id: entry
font_size: 75
multiline: False
# This will be the button that would go back to the screen and update
# the button text with the new text entered in the TextInput
BoxLayout:
spacing: 10
Button:
background_color: .52, .52, .52, 1
bold: 1
color: .0078,.67,.69,1
font_size: 40
text:"ENTER"
on_release: root.manager.current = "tire_setup_screen_name"
on_press: root.manager.ids.tire_setup_screen_id.ids.inch_input.text = entry.text
Outpu

how to close a Screen without interrupting the program in Kivy

I am beginner with respect to programming already resorted to previously forum which received help for simple issues.
I am currently looking for a way to close a screen without interrupting my program, I am using the "thread" to continue executing commands while the program is in the loop.
MAIN
from kivy.app import App
from kivy.uix.screenmanager import Screen
from kivy.properties import ObjectProperty
from kivy.core.audio import SoundLoader
from time import sleep
import thread
class Display(Screen):
myslider = ObjectProperty(None)
def get_number(self):
occupancy = format(self.myslider.value)
print "value = ",occupancy
def display_screen():
thread.start_new_thread(myApp().run, ())
def remove_screen():
Screen.disabled()
def ring():
sound = SoundLoader.load('ring.wav')
if sound:
sound.play()
class myApp(App):
def build(self):
return Display()
if __name__ == '__main__':
ring()
sleep(2)
display_screen()
sleep(7)
remove_screen()
KV file
#:import random random.random
<Display>:
orientation: 'vertical'
myslider: slider
canvas:
Color:
rgb: 1, 1, 1
Rectangle:
source: 'data/images/background.jpg'
size: self.size
BoxLayout:
padding: 10
spacing: 10
size_hint: 1, None
pos_hint: {'top': 1}
height: 44
Image:
size_hint: None, None
size: 24, 24
source: 'data/logo/kivy-icon-24.png'
Label:
height: 24
text_size: self.size
color: (1, 1, 1, .8)
text: 'Kivy 1.9.0.'
valign: 'middle'
GridLayout:
cols: 2
Label:
text: 'Please enter \nthe number of occupants?'
bold: True
font_name: 'data/fonts/DejaVuSans.ttf'
font_size: 22
halign: 'center'
Slider:
id: slider
min: 0.0
max: 15.0
value: 1.0
step: 1.0
orientation: "horizontal"
width: "38dp"
Label
text: ''
Label
text: '{}'.format(slider.value)
halign: 'center'
valign: 'top'
bold: True
text_size: self.size
font_size: 18
Button:
text: 'Enter'
size_hint_y: None
height: '50sp'
on_release: root.get_number()
I left remove_screen function because it was what I found so far in my research. but not work.