KIVY：如何在多个屏幕上使用同一组小部件

Question

I want to add same type of widgets on all of my screens. and when one any of those added widgets is clicked, it is deleted from all screens. this is the current approach

def drinksSelect(self,value):  # creating a button by referring the id of the layout in which to create button
    drinkImagePath = {'pepsi': 'drinksPictures/pepsi.png','7up': 'drinksPictures/7up.png'}
    if self.root.a_s.l < self.root.a_s.limit: # You know what I mean
        st = 'number'
        img = myImage(source= drinkImagePath[value], size=(200,20), id=st)
        img2 = myImage(source=drinkImagePath[value], size=(200, 20), id='soo')
        self.root.a_s.ids.place_remaining.add_widget(img)
        self.root.m_s.ids.place.add_widget(img2)
        self.root.a_s.l += 1

I am deleteing the image using this

class myImage (Image):
    def on_touch_down(self, touch):
        if self.collide_point(*touch.pos):
            self.parent.remove_widget(self)

The problem with that is that it only deletes the image that was clicked and not the ones on other screens.

Answer 1

Try this:

def drinksSelect(self, value):  # creating a button by referring the id of the layout in which to create button
    drinkImagePath = {'pepsi': 'drinksPictures/pepsi.png', '7up': 'drinksPictures/7up.png'}
    if self.root.a_s.l < self.root.a_s.limit:  # You know what I mean
        st = 'number'
        img = myImage(source=drinkImagePath[value], size=(200, 20), id=st)
        img2 = myImage(source=drinkImagePath[value], size=(200, 20), id='soo')
        img.twin = img2
        img2.twin = img
        button.a_s = self.root.a_s
        button2.a_s = self.root.a_s
        self.root.a_s.ids.place_remaining.add_widget(img)
        self.root.m_s.ids.place.add_widget(img2)
        self.root.a_s.l += 1


class myImage(Image):
    twin = ObjectProperty()
    a_s = ObjectProperty()

    def on_touch_down(self, touch):
        if self.collide_point(*touch.pos):
            self.parent.remove_widget(self)
            self.twin.parent.remove_widget(self.twin)
            self.a_s.l -= 1