CODEWITHSUNDEEP
androidpythonpython-3.xkivykivy-language
Rohaan Manzoor
Rohaan Manzoor

Reputation: 197

KIVY: How to clear a Grid Layout of all its children

I am trying to delete all buttons in a grid Layout which are dynamically created when a button is pressed. ive tried doing this using the clear_widget() but that does not work. now i assign ids to those dynamically created buttons and try to delete them but its also not working

Python

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)
        self.root.a_s.ids['place_remaining'].add_widget(img)
        self.root.a_s.l += 1

def checkout(self): #when this fucntion is called, it should clear the gridLayout with id drinksLayout
    #self.root.a_s.ids.drinksLayout.clear_widget(self.root.a_s.ids.place_remaining)
    st = 'number'
    self.root.a_s.ids.place_remaining.remove_widget(self.root.a_s.ids.st)

KV

 GridLayout:
        id: drinksLayout
        size_hint_y: 0.3
        orientation: 'horizontal'
        rows: 1
        GridLayout:
            id: place_remaining
            rows: 1
            size_hint_x: 80
        Button:
            id: label1
            width: 200 
            size_hint: None,0.4
            background_normal:'1.jpg'
            text: 'Checkout'
            on_release: app.checkout()

Upvotes: 5

Views: 4162

Answers (2)

ikolim
ikolim

Reputation: 16031

To clear GridLayout of all its children, please refer to the example for details.

Example

main.py

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.properties import ObjectProperty
from kivy.uix.image import Image


class RemoveWidgetDemo(BoxLayout):
    place_remaining = ObjectProperty(None)

    def __init__(self, **kwargs):
        super(RemoveWidgetDemo, self).__init__(**kwargs)
        self.drinksSelect()

    def drinksSelect(self):
        drinkImagePath = {'pepsi': 'drinksPictures/pepsi_logo.png', '7up': 'drinksPictures/7up-logo.png'}
        for value in drinkImagePath.values():
            self.place_remaining.add_widget(Image(source=value, size=(200, 20)))

    def checkout(self):
        for child in [child for child in self.place_remaining.children]:
            self.place_remaining.remove_widget(child)


class TestApp(App):
    title = "Kivy Clear GridLayout of all its children"

    def build(self):
        return RemoveWidgetDemo()


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

test.kv

#:kivy 1.10.0

<RemoveWidgetDemo>:
    place_remaining: place_remaining

    GridLayout:
        id: drinksLayout
        size_hint_y: 0.3
        orientation: 'horizontal'
        rows: 1

        GridLayout:
            id: place_remaining
            rows: 1
            size_hint_x: 80

        Button:
            id: label1
            width: 200
            size_hint: None,0.4
            background_normal:'1.png'
            text: 'Checkout'
            color: 0, 0, 0, 1
            on_release: root.checkout()

Output

enter image description here enter image description here

Upvotes: 2

sp________
sp________

Reputation: 2645

You have just to edit your checkout method a lil bit

    def checkout(self):  # when this fucntion is called, it should clear the gridLayout with id drinksLayout
        self.root.a_s.ids.place_remaining.clear_widgets()
        #but don't forget
        self.root.a_s.l = 0

Upvotes: 6

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