奇异时钟和弹出窗口 [英] Kivy Clock and Popup

问题描述

如何正确地为switch_id和switch_id_popup创建活动属性，以便我可以在带有定时器时钟的timer_loop内部创建条件语句?

How do I properly create active properties for switch_id and switch_id_popup so I can create a conditional statement inside of timer_loop with kivy clock?

在类似问题上，我得到了很好的反馈(再次感谢eyllanesc)，但是由于涉及到弹出窗口，因此我无法纳入建议.

I got great feedback on a similar question(thanks again eyllanesc), but I am unable to incorporate advice now that popup is involved.

下面是说明我的问题的草图.我已经用箭头标识了所有有问题的区域.预先感谢您的任何帮助.

Below is a sketch that illustrates my issue. I have identified all of the areas in question with arrows. Thank you in advance for any help.

from kivy.app import App
from kivy.lang import Builder
from kivy.clock import Clock
import time
from kivy.uix.popup import Popup

theRoot = Builder.load_string('''

<CustomPopup1>:

    StackLayout:
        active2: switch_id_popup.active #<---- switch_id_popup declared here(active2)


        Switch:                         #<---- This switch (switch_id_popup)
            id: switch_id_popup
            size_hint: .5, .5
            active: switch_id_popup.active

        Button:
            text: 'Close'
            on_release: root.dismiss()
            size_hint: .5, .5



StackLayout:
    active1: switch_id.active           #<---- switch_id declared here(active1)
    orientation: 'lr-tb'
    padding: 10
    spacing: 5


    Label:
        text: "Zone 1 Valve"
        size_hint: .25, .1

    Switch:                             #<---- This switch (switch_id)
        id: switch_id
        size_hint: .25, .1
        active: switch_id.active


    Button:
        text: "Program 1"
        on_press: app.open_popup1()
        size_hint: .5,.1

''')


class CustomPopup1(Popup):
    pass

class theApp(App):


    def build(self):
        Clock.schedule_interval(self.timer_loop, 2)
        return theRoot


    def timer_loop(self, dt):  

        if theRoot.active1 and theRoot.active2: #<---- How do I make this work if switch_id_popup is within a popup?
            print("Do something")
        else:
            print("Do nothing")

    def open_popup1(self):
        the_popup = CustomPopup1()
        the_popup.open()


if __name__ == '__main__':
    theApp().run()

推荐答案

正如我在我以前的解决方案中提到的，应该将每个类都视为一个黑盒，并公开允许您获取和建立值的属性.对于Popup，active属性必须是该类的一部分，而不是内部StackLayout.另一方面，在open_popup方法中，您总是创建一个新的Popup，在关闭它时将其删除，从而使该属性不可访问，因此我们推断必须存在一个更大范围的Popup对象，因为它必须在外部创建或成为其成员.最后，active2不是theRoot的属性.

As I mentioned in my previous solution, you should consider each class as a black box and expose properties that allow you to obtain and establish values. In the case of Popup, the active property must be part of the class and not the internal StackLayout. On the other hand in the open_popup method you are always creating a new Popup that will be deleted when you close it making the property is not accessible, so we deduce that there must be a Popup object with a larger scope for it must be created outside of theApp class or be a member of it. Lastly, active2 is not a property of theRoot.

考虑到上述情况，可获得以下解决方案:

Considering the above, the following solution is obtained:

from kivy.app import App
from kivy.lang import Builder
from kivy.clock import Clock
import time
from kivy.uix.popup import Popup

theRoot = Builder.load_string('''
<CustomPopup>:
    active: switch_id_popup.active
    StackLayout:
        Switch:
            id: switch_id_popup
            size_hint: .5, .5
        Button:
            text: 'Close'
            on_release: root.dismiss()
            size_hint: .5, .5

StackLayout:
    active: switch_id.active
    orientation: 'lr-tb'
    padding: 10
    spacing: 5
    Label:
        text: "Zone 1 Valve"
        size_hint: .25, .1
    Switch:
        id: switch_id
        size_hint: .25, .1
    Button:
        text: "Program 1"
        on_press: app.open_popup()
        size_hint: .5,.1

''')

class CustomPopup(Popup):
    pass


class TheApp(App):
    def build(self):
        self.the_popup = CustomPopup()
        Clock.schedule_interval(self.timer_loop, 2)
        return theRoot

    def timer_loop(self, dt):  
        if self.root.active and self.the_popup.active:
            print("Do something")
        else:
            print("Do nothing")

    def open_popup(self):
        self.the_popup.open()


if __name__ == '__main__':
    TheApp().run()

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