/usr/share/kivy-examples/widgets/lists/list_reset_data.py is in python-kivy-examples 1.8.0+dfsg-2.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 | # -*- coding: utf-8 -*-
from kivy.uix.listview import ListView
from kivy.uix.floatlayout import FloatLayout
from kivy.clock import Clock
from kivy.adapters.listadapter import ListAdapter
from kivy.adapters.models import SelectableDataItem
from kivy.uix.listview import ListItemButton
from random import choice
from string import ascii_uppercase, digits
import random
class DataItem(SelectableDataItem):
def __init__(self, **kwargs):
super(DataItem, self).__init__(**kwargs)
self.name = ''.join(choice(ascii_uppercase + digits) for x in range(6))
class MainView(FloatLayout):
"""
Implementation of a ListView using the kv language.
"""
def __init__(self, **kwargs):
super(MainView, self).__init__(**kwargs)
data_items = []
data_items.append(DataItem())
data_items.append(DataItem())
data_items.append(DataItem())
list_item_args_converter = lambda row_index, obj: {'text': obj.name,
'size_hint_y': None,
'height': 25}
self.list_adapter = \
ListAdapter(data=data_items,
args_converter=list_item_args_converter,
selection_mode='single',
propagate_selection_to_data=False,
allow_empty_selection=False,
cls=ListItemButton)
self.list_view = ListView(adapter=self.list_adapter)
self.add_widget(self.list_view)
self.toggle = 'adding'
Clock.schedule_interval(self.update_list_data, 1)
def update_list_data(self, dt):
items = self.list_adapter.data
if self.toggle == 'adding':
item = DataItem(name='New ' * random.randint(1, 2))
items.append(item)
self.toggle = 'changing'
print('added ' + item.name)
else:
random_index = random.randint(0, len(items) - 1)
item = items[random_index]
items[random_index] = DataItem()
self.toggle = 'adding'
print('changed {0} to {1}'.format(item.name,
items[random_index].name))
if __name__ == '__main__':
from kivy.base import runTouchApp
runTouchApp(MainView(width=800))
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