listitems.kv

<JobListItem>:
    border: dp(10)
    swipe_threshold: .2
    ThreeLineListItem:
        text: root.maintext
        secondary_text: root.subtext
        size_hint_y: 1
        size_hint_x: None
        width: app.root.width
        on_release: app.root.ids.schedule_screen_manager.get_screen("front_screen").view_job_details(root)
    BoxLayout:
        orientation: "horizontal"
        Button:
            text: "Deleger"
            size_hint_y: 1
        Button:
            text: "Slett"
            size_hint_y: 1

listitems.py

# -*- coding: utf-8 -*-
from kivy.app import App
from kivymd.list import ThreeLineListItem
from kivy.uix.button import ButtonBehavior
from kivy.uix.scrollview import ScrollView
from kivy.uix.recycleview import RecycleView
from kivy.uix.pagelayout import PageLayout
from kivy.properties import ObjectProperty, StringProperty
from kivy.lang import Builder
from kivy.metrics import dp

Builder.load_file("kv/components/listitems.kv")


class JobListItem(PageLayout, ButtonBehavior):
    job = ObjectProperty()
    maintext = StringProperty("")
    subtext = StringProperty("")

    def __init__(self, job, **kwargs):
        super(JobListItem, self).__init__(**kwargs)
        self.job = job
        self.maintext = str(job.job_date + " " + job.clock_time)
        self.subtext = "Klient: {} | Addresse: {} | Kontaktnummer: {} | Nøkkelord: {}".format(
            job.client_name, job.address, job.contact_number, job.keywords
        )

    def on_page(self, instance, value):
        if value >= 1:
            self.border = dp(150)
        elif value == 0:
            self.border = dp(10)