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from random import sample, randint
from string import ascii_lowercase
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.boxlayout import BoxLayout
kv = """
<Row@RecycleKVIDsDataViewBehavior+BoxLayout>:
canvas.before:
Color:
rgba: 0.5, 0.5, 0.5, 1
Rectangle:
size: self.size
pos: self.pos
value: ''
Label:
id: name
Label:
text: root.value
<Test>:
canvas:
Color:
rgba: 0.3, 0.3, 0.3, 1
Rectangle:
size: self.size
pos: self.pos
rv: rv
orientation: 'vertical'
GridLayout:
cols: 3
rows: 2
size_hint_y: None
height: dp(108)
padding: dp(8)
spacing: dp(16)
Button:
text: 'Populate list'
on_press: root.populate()
Button:
text: 'Sort list'
on_press: root.sort()
Button:
text: 'Clear list'
on_press: root.clear()
BoxLayout:
spacing: dp(8)
Button:
text: 'Insert new item'
on_press: root.insert(new_item_input.text)
TextInput:
id: new_item_input
size_hint_x: 0.6
hint_text: 'value'
padding: dp(10), dp(10), 0, 0
BoxLayout:
spacing: dp(8)
Button:
text: 'Update first item'
on_press: root.update(update_item_input.text)
TextInput:
id: update_item_input
size_hint_x: 0.6
hint_text: 'new value'
padding: dp(10), dp(10), 0, 0
Button:
text: 'Remove first item'
on_press: root.remove()
RecycleView:
id: rv
scroll_type: ['bars', 'content']
scroll_wheel_distance: dp(114)
bar_width: dp(10)
viewclass: 'Row'
RecycleBoxLayout:
default_size: None, dp(56)
default_size_hint: 1, None
size_hint_y: None
height: self.minimum_height
orientation: 'vertical'
spacing: dp(2)
"""
Builder.load_string(kv)
class Test(BoxLayout):
def populate(self):
self.rv.data = [
{'name.text': ''.join(sample(ascii_lowercase, 6)),
'value': str(randint(0, 2000))}
for x in range(50)]
def sort(self):
self.rv.data = sorted(self.rv.data, key=lambda x: x['name.text'])
def clear(self):
self.rv.data = []
def insert(self, value):
self.rv.data.insert(0, {
'name.text': value or 'default value', 'value': 'unknown'})
def update(self, value):
if self.rv.data:
self.rv.data[0]['name.text'] = value or 'default new value'
self.rv.refresh_from_data()
def remove(self):
if self.rv.data:
self.rv.data.pop(0)
class TestApp(App):
def build(self):
return Test()
if __name__ == '__main__':
TestApp().run()
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