Nsryjdtyk

I recently started learning kivy and when trying to update the ListView I get the error AttributeError: 'ListAdapter' object has no attribute 'adapter'. I was wondering what the logic behind this error is and what I can do to fix it.

Here is the kv text

Builder.load_string("""

#:import ListItemButton kivy.uix.listview.ListItemButton

<HomeScreen>:

BoxLayout:

    orientation: 'vertical'

    padding: 30

    spacing: 30

    BoxLayout:

        Label: 

            font_size: 48

            text: 'Welcome To Your Gym App'

    BoxLayout:

        Button:

            text: 'Diary'

            on_release: root.manager.current = 'diary_screen'



<DiaryScreen>:

date_input_field: date_input_field

group_input_field: group_input_field

BoxLayout:

    spacing: 30

    padding: 30

    orientation: 'vertical'

    ListView:

        adapter: root.DiaryAdapter

    BoxLayout:

        size_hint_y: .07

        Label:

            text: 'Date:'

        TextInput:

            id: date_input_field

            multiline: False

    BoxLayout:

        size_hint_y: .07

        Label:

            text: 'Group:'

        TextInput:

            id: group_input_field

            multiline: False

    BoxLayout:

        size_hint_y: .2

        orientation: 'horizontal'

        Button:

            size_hint_y: None

            height: '65dp'

            text: 'Back'

            on_release: root.manager.current = 'home_screen'

        Button:

            size_hint_y: None

            height: '65dp'

            text: 'Edit Entry'

        Button:

            size_hint_y: None

            height: '65dp'

            text: 'Add Entry'

            on_release: root.add_new_entry()

        Button:

            size_hint_y: None

            height: '65dp'

            text: 'Delete Entry'

Here are the classes for building the app and the methods for retrieving/updating the list adapter along with all of my imports. Also the diary_reader import is another class that generates lists and dictionaries from .csv files

import kivy

kivy.require('1.10.1')

from kivy.app import App

from kivy.lang import Builder

from kivy.adapters.listadapter import ListAdapter

from kivy.uix.screenmanager import ScreenManager, Screen

from kivy.uix.listview import ListItemButton

from diary_reader import *

from kivy.properties import ObjectProperty



diary_dict = give_completed_dict()

displayed_diary = return_as_list_keys(diary_dict)



class HomeScreen(Screen):

    pass





class DiaryScreen(Screen):

    date_input_field = ObjectProperty()

    group_input_field = ObjectProperty()



    def __init__(self, **kwargs):

        self.DiaryAdapter = ListAdapter(data=displayed_diary, 

                                        cls=ListItemButton)

        super(DiaryScreen, self).__init__(**kwargs)



    def get_date(self):

        the_date = self.date_input_field.text

        return the_date



    def get_group(self):

        the_group = self.group_input_field.text

        return the_group



    def get_key(self):

        d = self.get_date()

        g = self.get_group()

        new_key = d + ' ' + g

        return new_key



    def add_new_entry(self):

        k = self.get_key()

        self.DiaryAdapter.adapter.data.extend([k])

        self.DiaryAdapter._trigger_reset_populate()



screen_manager = ScreenManager()

screen_manager.add_widget(HomeScreen(name='home_screen'))

screen_manager.add_widget(DiaryScreen(name='diary_screen'))



class My_GymApp(App):

    def build(self):

        return screen_manager





if __name__ == '__main__':

    My_GymApp().run()

I read the documentation for adapters and listadapters on kivy's website but I still couldn't really figure out what was causing this error.

in add_new_entry
self.DiaryAdapter.adapter.data.extend([k])
AttributeError: 'ListAdapter' object has no attribute 'adapter'