Kivy ScreenManager 破坏了 BoxLayout
Kivy ScreenManager breaks BoxLayout
我是 Kivy 的新手，但能够创建一个单屏应用程序。在我需要添加更多屏幕之前，一切看起来都很好。单页应用程序显示正确，但当我添加屏幕时，BoxLayouts 不再像我预期的那样工作。小部件全部呈现在屏幕底部的彼此之上。我的问题是我在实现 ScreenManager 时做错了什么？
单屏应用程序如下所示：
我决定让它成为多屏幕，但是当我添加 ScreenManager 逻辑时，生成的屏幕如下所示：
获取了信息
我的 main.py 文件如下所示：
from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.label import Label
from kivy.uix.button import Button
from kivy.uix.popup import Popup
from kivy.properties import ObjectProperty
from kivy.uix.screenmanager import ScreenManager, Screen, FadeTransition
class Pay_screen(Screen):
pass
class Survey_screen(Screen):
pass
class Finish_screen(Screen):
pass
class Sm(ScreenManager):
pass
class Next_root(BoxLayout):
pass
class Nq_disagree_label(Label):
pass
class Nq_question_label(Label):
pass
class Nq_button(Button):
pass
class survey_form(BoxLayout):
#dept_button = ObjectProperty()
def send_survey(self):
mypopup = MyPopup()
mypopup.show_popup('Survey', 'Survey sent!', 'OK!')
def add_comment(self):
mypopup = MyPopup()
mypopup.show_popup('Comment', 'This is where a comment is added.', 'OK!')
def close_app(self):
App.get_running_app().stop()
class MyPopup(Popup):
def show_popup(self, title_text, label_text, button_text):
mytext= label_text
content = BoxLayout(orientation="vertical")
content.add_widget(Label(text=mytext, font_size=20, text_size=(300, None)))
mybutton = Button(text="Ok!", size_hint=(1,.20), font_size=20)
content.add_widget(mybutton)
mypopup = Popup(content = content,
title = title_text,
auto_dismiss = False,
size_hint = (.5, .5)) #,
#font_size = 20)
mybutton.bind(on_press=mypopup.dismiss)
mypopup.open()
class nextqualApp(App):
icon = 'nextqual.png'
title = 'Pay / survey / join'
if __name__ == '__main__':
nextqualApp().run()
我的屏幕管理器 KV 文件如下所示：
#: import FadeTransition kivy.uix.screenmanager.FadeTransition
Sm:
transition: FadeTransition()
Survey_screen:
Pay_screen:
<nq_button@Button>:
halign: "center"
text: "Add\ncomment"
size_hint_x: 10
<Nq_disagree_label@Label>:
halign: "left"
size_hint_x: 10
text:"Strongly\ndisagree"
<Nq_agree_label@Label>:
halign: "left"
size_hint_x: 10
text:"Strongly\nagree"
<Nq_question_label@Label>:
halign: "left"
font_size: "24"
size_hint_x: 25
<Pay_screen>:
name: 'pay'
#orientation: "vertical"
#padding: 6
#font_size: 24
BoxLayout:
height: "40dp"
Button:
text: "Pay your bill"
on_release: app.root.current = 'pay'
Button:
text: "Tell us how we did"
on_release: app.root.current = 'survey'
Button:
text: "I'm finished"
BoxLayout:
Button:
text: "Pay your bill"
on_release: app.root.current = 'survey'
<Survey_screen>:
name: "survey"
#orientation: "vertical"
#padding: 6
#font_size: "24"
BoxLayout:
height: "40dp"
Button:
text: "Pay your bill"
on_release: app.root.current = 'pay'
Button:
text: "Tell us how we did"
on_release: app.root.current = 'survey'
Button:
text: "I'm finished"
BoxLayout:
halign: "center"
Image:
source: "logo.jpg"
#size: self.size
BoxLayout:
height: "80dp"
size_hint_y: None
Label:
bold: True
#color: 10,10,10,10
#halign: "center"
#text_size: self.size
markup: True
text: "[color=f9f752]Description[/color]"
multiline: True
#size_hint_x: 25
text_size: self.size
halign: 'center'
valign: 'middle'
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The service I recieved from start to finish was excellent."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "I waited an appropriate amount of time for my food and drink."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The quality and presentation of the food was outstanding."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The prices provide good value for money."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The atmosphere was relaxing and enjoyable."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The overall cleanliness was very acceptable."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "I will recommend Synterest to my friends and family."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "100dp"
size_hint_y: None
Label:
size_hint_x: 40
Button:
size_hint_x: 20
text:"Send survey"
halign: "center"
on_press: root.send_survey()
Label:
size_hint_x: 40
没有屏幕管理器的KV文件是这样的：
nq_button@Button>:
halign: "center"
text: "Add\ncomment"
size_hint_x: 10
<Nq_disagree_label@Label>:
halign: "left"
size_hint_x: 10
text:"Strongly\ndisagree"
<Nq_agree_label@Label>:
halign: "left"
size_hint_x: 10
text:"Strongly\nagree"
<Nq_question_label@Label>:
halign: "left"
font_size: "24"
size_hint_x: 25
survey_form:
<survey_form>:
name: "survey"
orientation: "vertical"
padding: 6
font_size: "24"
BoxLayout:
height: "40dp"
Button:
text: "Pay your bill"
on_release: app.root.current = 'pay'
Button:
text: "Tell us how we did"
on_release: app.root.current = 'survey'
Button:
text: "I'm finished"
BoxLayout:
halign: "center"
Image:
source: "logo.jpg"
#size: self.size
BoxLayout:
height: "80dp"
size_hint_y: None
Label:
bold: True
#color: 10,10,10,10
#halign: "center"
#text_size: self.size
markup: True
text: "[color=f9f752]At Synterest, we care deeply about your impressions of our food, service and atmosphere. We would be very grateful if you took a few moments to give us your feedback on how you enjoyed your meal.[/color]"
multiline: True
#size_hint_x: 25
text_size: self.size
halign: 'center'
valign: 'middle'
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The service I recieved from start to finish was excellent."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "I waited an appropriate amount of time for my food and drink."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The quality and presentation of the food was outstanding."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The prices provide good value for money."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The atmosphere was relaxing and enjoyable."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The overall cleanliness was very acceptable."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "I will recommend Synterest to my friends and family."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "100dp"
size_hint_y: None
Label:
size_hint_x: 40
Button:
size_hint_x: 20
text:"Send survey"
halign: "center"
on_press: root.send_survey()
Label:
size_hint_x: 40
这个问题折腾了很久，有时候答案就很明显了。
Survey_screen 和 Pay_screen 继承自 Main.py 文件中的 Screen。我在做原来的one page app的时候，root widget继承自BoxLayout
我在 .kv 文件中为每个屏幕添加了一个 BoxLayout，这将所有内容都放在了正确的位置。
例如，
<Survey_screen>:
name: "survey"
BoxLayout:
orientation: "vertical"
padding: 6
BoxLayout:
height: "40dp"
size_hint_y: None
Button:
等等
我已经设法让屏幕管理器正常工作，并在不同平台之间共享小部件属性
所有屏幕。
class XDispLayout(Screen):
intr_str01 = str('This application advises --')
def start01_value(self):
xclr=[random.random(), random.random(), random.random()]+[1]
self.ids.x1.color=xclr
self.ids.set_ipbtn.color=xclr
app = App.get_running_app()
print ('text imported is '+ str(app.INT_TEXT))
app.INT_TEXT = app.INT_TEXT + 1
app.COLOR_STX=xclr
print ('screen-Main app.COLOR_STX -is >'+ str(app.COLOR_STX))
self.ids.ip_add01.color=app.COLOR_STX
#below is an example of how you update on another screen, Year05 screen for eg.
app.root.pyear05.ids.sfayear05.color =app.COLOR_STX
return()
class Year01(Screen):
def set_chk_same_cshint_y1(self,guess, *arg):
if guess.active:
temp_int=float(self.ids.cshint_y1m1.value)
print ('tttt-is >'+ str(temp_int))
app = App.get_running_app()
self.ids.sfayear06.color=app.COLOR_STX
print ('app.root.pyear01.ids.int_ylm2.value -is >'+ str(app.root.pyear01.ids.int_ylm1.value))
#since the above is actually the same object, you can use
#different ways....
#self.ids.int_ylm1.value==temp_int
#app.root.pyear01.ids.int_ylm1.value=temp_int
class CManager(ScreenManager):
#below is important when you want to change something on another screen
pmain = ObjectProperty(None)
pyear01 = ObjectProperty(None)
pyear02 = ObjectProperty(None)
pyear03 = ObjectProperty(None)
pyear04 = ObjectProperty(None)
pyear05 = ObjectProperty(None)
pyear06 = ObjectProperty(None)
#self.transition=NoTransition()
pass
class FinDispApp(App):
# the below values can be accessed using app.INT_TEXT, app.COLOR_STX
INT_TEXT = 55
COLOR_STX = [1,0,0,1]
CASHOUT_00=0
#.....
#.......
def build(self):
sm = CManager(transition=NoTransition())
sm.current='main'
return sm
if __name__ == "__main__":
FinDispApp().run()
<CManager>:
#this is the root widget
id:screen_manager01
#below maps python object property to kivy Ids
pmain : idmain
pyear01 : idyear01
pyear02 : idyear02
pyear03 : idyear03
pyear04 : idyear04
pyear05 : idyear05
pyear06 : idyear06
XDispLayout:
id:idmain
name:'main'
manager:screen_manager01
Year01:
id:idyear01
name:'year01'
manager:screen_manager01
Year02:
id:idyear02
name:'year02'
manager:screen_manager01
Year03:
id:idyear03
name:'year03'
manager:screen_manager01
Year04:
id:idyear04
name:'year04'
manager:screen_manager01
Year05:
id:idyear05
name:'year05'
manager:screen_manager01
Year06:
id:idyear06
name:'year06'
manager:screen_manager01
<XDispLayout>:
name: 'main'
orientation: "horizontal"
BoxLayout:
orientation:'vertical'
BoxLayout:
orientation:'horizontal'
size_hint_x :1
size_hint_y :0.08
Button:
id: btn_yr06
text:'go to year06'
o#pacity : 0
#disabled : True
on_press:
#root.setvalue_00()
on_release:
root.manager.current = 'year06'
root.manager.transition.direction = 'right'
Button:
id: btn_yr01
text:'go to year01'
opacity : 0
disabled : True
on_press:
#root.enable_y06()
#root.setvalue_00()
on_release:
root.manager.current = 'year01'
root.manager.transition.direction = 'left'
<Year01>:
name: 'year01'
BoxLayout:
orientation:'vertical'
Label:
id:sfayear01
text: "Year01"
<Year02>:
name: 'year02'
BoxLayout:
orientation:'vertical'
Label:
id:sfayear02
text: "Year02"
halign : 'right'
valign : 'middle'
<Year06>:
name: 'year06'
BoxLayout:
orientation:'vertical'
Label:
id:sfayear06
text: "blah blah blas"
font_size: 20
BoxLayout:
orientation:'horizontal'
BoxLayout:
orientation:'horizontal'
size_hint_x :1
size_hint_y :0.4
Button:
text:'go to year05'
on_press:
root.manager.current = 'year05'
root.manager.transition.direction = 'right'
Button:
text:'go to main'
on_press:
root.manager.current = 'main'
root.manager.transition.direction = 'left'
我是 Kivy 的新手，但能够创建一个单屏应用程序。在我需要添加更多屏幕之前，一切看起来都很好。单页应用程序显示正确，但当我添加屏幕时，BoxLayouts 不再像我预期的那样工作。小部件全部呈现在屏幕底部的彼此之上。我的问题是我在实现 ScreenManager 时做错了什么？
单屏应用程序如下所示：
我决定让它成为多屏幕，但是当我添加 ScreenManager 逻辑时，生成的屏幕如下所示：
我的 main.py 文件如下所示：
from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.label import Label
from kivy.uix.button import Button
from kivy.uix.popup import Popup
from kivy.properties import ObjectProperty
from kivy.uix.screenmanager import ScreenManager, Screen, FadeTransition
class Pay_screen(Screen):
pass
class Survey_screen(Screen):
pass
class Finish_screen(Screen):
pass
class Sm(ScreenManager):
pass
class Next_root(BoxLayout):
pass
class Nq_disagree_label(Label):
pass
class Nq_question_label(Label):
pass
class Nq_button(Button):
pass
class survey_form(BoxLayout):
#dept_button = ObjectProperty()
def send_survey(self):
mypopup = MyPopup()
mypopup.show_popup('Survey', 'Survey sent!', 'OK!')
def add_comment(self):
mypopup = MyPopup()
mypopup.show_popup('Comment', 'This is where a comment is added.', 'OK!')
def close_app(self):
App.get_running_app().stop()
class MyPopup(Popup):
def show_popup(self, title_text, label_text, button_text):
mytext= label_text
content = BoxLayout(orientation="vertical")
content.add_widget(Label(text=mytext, font_size=20, text_size=(300, None)))
mybutton = Button(text="Ok!", size_hint=(1,.20), font_size=20)
content.add_widget(mybutton)
mypopup = Popup(content = content,
title = title_text,
auto_dismiss = False,
size_hint = (.5, .5)) #,
#font_size = 20)
mybutton.bind(on_press=mypopup.dismiss)
mypopup.open()
class nextqualApp(App):
icon = 'nextqual.png'
title = 'Pay / survey / join'
if __name__ == '__main__':
nextqualApp().run()
我的屏幕管理器 KV 文件如下所示：
#: import FadeTransition kivy.uix.screenmanager.FadeTransition
Sm:
transition: FadeTransition()
Survey_screen:
Pay_screen:
<nq_button@Button>:
halign: "center"
text: "Add\ncomment"
size_hint_x: 10
<Nq_disagree_label@Label>:
halign: "left"
size_hint_x: 10
text:"Strongly\ndisagree"
<Nq_agree_label@Label>:
halign: "left"
size_hint_x: 10
text:"Strongly\nagree"
<Nq_question_label@Label>:
halign: "left"
font_size: "24"
size_hint_x: 25
<Pay_screen>:
name: 'pay'
#orientation: "vertical"
#padding: 6
#font_size: 24
BoxLayout:
height: "40dp"
Button:
text: "Pay your bill"
on_release: app.root.current = 'pay'
Button:
text: "Tell us how we did"
on_release: app.root.current = 'survey'
Button:
text: "I'm finished"
BoxLayout:
Button:
text: "Pay your bill"
on_release: app.root.current = 'survey'
<Survey_screen>:
name: "survey"
#orientation: "vertical"
#padding: 6
#font_size: "24"
BoxLayout:
height: "40dp"
Button:
text: "Pay your bill"
on_release: app.root.current = 'pay'
Button:
text: "Tell us how we did"
on_release: app.root.current = 'survey'
Button:
text: "I'm finished"
BoxLayout:
halign: "center"
Image:
source: "logo.jpg"
#size: self.size
BoxLayout:
height: "80dp"
size_hint_y: None
Label:
bold: True
#color: 10,10,10,10
#halign: "center"
#text_size: self.size
markup: True
text: "[color=f9f752]Description[/color]"
multiline: True
#size_hint_x: 25
text_size: self.size
halign: 'center'
valign: 'middle'
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The service I recieved from start to finish was excellent."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "I waited an appropriate amount of time for my food and drink."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The quality and presentation of the food was outstanding."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The prices provide good value for money."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The atmosphere was relaxing and enjoyable."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The overall cleanliness was very acceptable."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "I will recommend Synterest to my friends and family."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "100dp"
size_hint_y: None
Label:
size_hint_x: 40
Button:
size_hint_x: 20
text:"Send survey"
halign: "center"
on_press: root.send_survey()
Label:
size_hint_x: 40
没有屏幕管理器的KV文件是这样的：
nq_button@Button>:
halign: "center"
text: "Add\ncomment"
size_hint_x: 10
<Nq_disagree_label@Label>:
halign: "left"
size_hint_x: 10
text:"Strongly\ndisagree"
<Nq_agree_label@Label>:
halign: "left"
size_hint_x: 10
text:"Strongly\nagree"
<Nq_question_label@Label>:
halign: "left"
font_size: "24"
size_hint_x: 25
survey_form:
<survey_form>:
name: "survey"
orientation: "vertical"
padding: 6
font_size: "24"
BoxLayout:
height: "40dp"
Button:
text: "Pay your bill"
on_release: app.root.current = 'pay'
Button:
text: "Tell us how we did"
on_release: app.root.current = 'survey'
Button:
text: "I'm finished"
BoxLayout:
halign: "center"
Image:
source: "logo.jpg"
#size: self.size
BoxLayout:
height: "80dp"
size_hint_y: None
Label:
bold: True
#color: 10,10,10,10
#halign: "center"
#text_size: self.size
markup: True
text: "[color=f9f752]At Synterest, we care deeply about your impressions of our food, service and atmosphere. We would be very grateful if you took a few moments to give us your feedback on how you enjoyed your meal.[/color]"
multiline: True
#size_hint_x: 25
text_size: self.size
halign: 'center'
valign: 'middle'
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The service I recieved from start to finish was excellent."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "I waited an appropriate amount of time for my food and drink."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The quality and presentation of the food was outstanding."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The prices provide good value for money."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The atmosphere was relaxing and enjoyable."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "The overall cleanliness was very acceptable."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_question_label:
text: "I will recommend Synterest to my friends and family."
BoxLayout:
height: "40dp"
size_hint_y: None
Nq_disagree_label:
Slider:
size_hint_x: 80
value: 50
Nq_agree_label:
nq_button:
on_press: root.add_comment()
BoxLayout:
height: "100dp"
size_hint_y: None
Label:
size_hint_x: 40
Button:
size_hint_x: 20
text:"Send survey"
halign: "center"
on_press: root.send_survey()
Label:
size_hint_x: 40
这个问题折腾了很久，有时候答案就很明显了。
Survey_screen 和 Pay_screen 继承自 Main.py 文件中的 Screen。我在做原来的one page app的时候，root widget继承自BoxLayout
我在 .kv 文件中为每个屏幕添加了一个 BoxLayout，这将所有内容都放在了正确的位置。
例如，
<Survey_screen>:
name: "survey"
BoxLayout:
orientation: "vertical"
padding: 6
BoxLayout:
height: "40dp"
size_hint_y: None
Button:
等等
我已经设法让屏幕管理器正常工作，并在不同平台之间共享小部件属性 所有屏幕。
class XDispLayout(Screen):
intr_str01 = str('This application advises --')
def start01_value(self):
xclr=[random.random(), random.random(), random.random()]+[1]
self.ids.x1.color=xclr
self.ids.set_ipbtn.color=xclr
app = App.get_running_app()
print ('text imported is '+ str(app.INT_TEXT))
app.INT_TEXT = app.INT_TEXT + 1
app.COLOR_STX=xclr
print ('screen-Main app.COLOR_STX -is >'+ str(app.COLOR_STX))
self.ids.ip_add01.color=app.COLOR_STX
#below is an example of how you update on another screen, Year05 screen for eg.
app.root.pyear05.ids.sfayear05.color =app.COLOR_STX
return()
class Year01(Screen):
def set_chk_same_cshint_y1(self,guess, *arg):
if guess.active:
temp_int=float(self.ids.cshint_y1m1.value)
print ('tttt-is >'+ str(temp_int))
app = App.get_running_app()
self.ids.sfayear06.color=app.COLOR_STX
print ('app.root.pyear01.ids.int_ylm2.value -is >'+ str(app.root.pyear01.ids.int_ylm1.value))
#since the above is actually the same object, you can use
#different ways....
#self.ids.int_ylm1.value==temp_int
#app.root.pyear01.ids.int_ylm1.value=temp_int
class CManager(ScreenManager):
#below is important when you want to change something on another screen
pmain = ObjectProperty(None)
pyear01 = ObjectProperty(None)
pyear02 = ObjectProperty(None)
pyear03 = ObjectProperty(None)
pyear04 = ObjectProperty(None)
pyear05 = ObjectProperty(None)
pyear06 = ObjectProperty(None)
#self.transition=NoTransition()
pass
class FinDispApp(App):
# the below values can be accessed using app.INT_TEXT, app.COLOR_STX
INT_TEXT = 55
COLOR_STX = [1,0,0,1]
CASHOUT_00=0
#.....
#.......
def build(self):
sm = CManager(transition=NoTransition())
sm.current='main'
return sm
if __name__ == "__main__":
FinDispApp().run()
<CManager>:
#this is the root widget
id:screen_manager01
#below maps python object property to kivy Ids
pmain : idmain
pyear01 : idyear01
pyear02 : idyear02
pyear03 : idyear03
pyear04 : idyear04
pyear05 : idyear05
pyear06 : idyear06
XDispLayout:
id:idmain
name:'main'
manager:screen_manager01
Year01:
id:idyear01
name:'year01'
manager:screen_manager01
Year02:
id:idyear02
name:'year02'
manager:screen_manager01
Year03:
id:idyear03
name:'year03'
manager:screen_manager01
Year04:
id:idyear04
name:'year04'
manager:screen_manager01
Year05:
id:idyear05
name:'year05'
manager:screen_manager01
Year06:
id:idyear06
name:'year06'
manager:screen_manager01
<XDispLayout>:
name: 'main'
orientation: "horizontal"
BoxLayout:
orientation:'vertical'
BoxLayout:
orientation:'horizontal'
size_hint_x :1
size_hint_y :0.08
Button:
id: btn_yr06
text:'go to year06'
o#pacity : 0
#disabled : True
on_press:
#root.setvalue_00()
on_release:
root.manager.current = 'year06'
root.manager.transition.direction = 'right'
Button:
id: btn_yr01
text:'go to year01'
opacity : 0
disabled : True
on_press:
#root.enable_y06()
#root.setvalue_00()
on_release:
root.manager.current = 'year01'
root.manager.transition.direction = 'left'
<Year01>:
name: 'year01'
BoxLayout:
orientation:'vertical'
Label:
id:sfayear01
text: "Year01"
<Year02>:
name: 'year02'
BoxLayout:
orientation:'vertical'
Label:
id:sfayear02
text: "Year02"
halign : 'right'
valign : 'middle'
<Year06>:
name: 'year06'
BoxLayout:
orientation:'vertical'
Label:
id:sfayear06
text: "blah blah blas"
font_size: 20
BoxLayout:
orientation:'horizontal'
BoxLayout:
orientation:'horizontal'
size_hint_x :1
size_hint_y :0.4
Button:
text:'go to year05'
on_press:
root.manager.current = 'year05'
root.manager.transition.direction = 'right'
Button:
text:'go to main'
on_press:
root.manager.current = 'main'
root.manager.transition.direction = 'left'