MDCardSwipe does not work when using with MDefreshLayout

[quitegreensky]

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Description of the Bug

MDCardSwipe does not work when using with MDefreshLayout. But it works when replacing the MDRefreshLayout with a BoxLayout

Test:

from kivy.lang import Builder
from kivy.properties import StringProperty

from kivymd.app import MDApp
from kivymd.uix.card import MDCardSwipe

KV = '''
<SwipeToDeleteItem>:
    size_hint_y: None
    height: content.height
    type_swipe: "hand"

    MDCardSwipeLayerBox:

    MDCardSwipeFrontBox:

        OneLineListItem:
            id: content
            text: root.text
            _no_ripple_effect: True


Screen:
    
    MDScrollViewRefreshLayout: # Does not work
        refresh_callback: lambda *args: print("refresh")
        root_layout: root

    # BoxLayout: # works
    #     orientation: "vertical"

        BoxLayout:
            orientation: "vertical"
            spacing: "10dp"

            MDToolbar:
                elevation: 10
                title: "MDCardSwipe"

            ScrollView:

                MDList:
                    id: md_list
                    padding: 0
'''


class SwipeToDeleteItem(MDCardSwipe):
    text = StringProperty()


class TestCard(MDApp):
    def __init__(self, **kwargs):
        super().__init__(**kwargs)
        self.screen = Builder.load_string(KV)

    def build(self):
        return self.screen

    def on_start(self):
        for i in range(20):
            self.screen.ids.md_list.add_widget(
                SwipeToDeleteItem(text=f"One-line item {i}")
            )


TestCard().run()

Versions

• OS: Windows 10
• Python: 3.7.4
• Kivy: 2.0.0
• KivyMD: master

[sollarp]

This could be a temporary solution until the bug gets fixed. Unfortunately the swipe action only works from top of the list not from Toolbar.

from kivymd.app import MDApp
from kivy.lang import Builder
from kivy.factory import Factory
from kivy.properties import StringProperty
from kivymd.uix.card import MDCardSwipe
from kivymd.utils import asynckivy

Builder.load_string('''
<SwipeToDeleteItem>:
    size_hint_y: None
    height: content.height
    type_swipe: "hand"

    MDCardSwipeLayerBox:

    MDCardSwipeFrontBox:

        OneLineListItem:
            id: content
            text: root.text
            _no_ripple_effect: True

<Example@FloatLayout>
    
    BoxLayout:
        orientation: 'vertical'
        
        MDToolbar:
            elevation: 10
            title: app.title
            
        MDScrollViewRefreshLayout:
            id: refresh_layout
            refresh_callback: app.refresh_callback
            root_layout: root

            MDList:
                id: box
                size_hint_y: None
                height: self.minimum_height
                cols: 1
''')

class SwipeToDeleteItem(MDCardSwipe):
    text = StringProperty()

class Example(MDApp):
    title = 'Refresh Layout'
    screen = None
    x = 0
    y = 15

    def build(self):
        self.screen = Factory.Example()
        self.set_list()

        return self.screen

    def set_list(self):
        async def set_list():
            await asynckivy.sleep(0)
            for i in range(20):
                self.screen.ids.box.add_widget(
                SwipeToDeleteItem(text=f"One-line item {i}")
            )
        asynckivy.start(set_list())

    def refresh_callback(self, *args):
        lambda *args: print("refresh")

Example().run()

[HeaTTheatR]

The issue is deprecated due to the new API of the KivyMD library 2.0.0 version