testrv.py

# coding=utf-8

from kivy.properties import ListProperty
from kivy.lang import Builder
from kivy.app import App
from random import randint

RV = """
#:import RecycleView kivy.garden.recycleview.RecycleView
GridLayout:
    cols: 1
    BoxLayout:
        size_hint_y: None
        height: "48dp"
        Button:
            text: "Data 1"
            on_release: app.push_data_1()
        Button:
            text: "Data 2"
            on_release: app.push_data_2()
    RecycleView:
        key_viewclass: "viewclass"
        default_size: "24sp"
        data: app.data

<Data1Item@GridLayout>:
    rows: 1
    row: [0] * 10
    Label:
        text: str(root.row[0])
    Label:
        text: str(root.row[1])
    Label:
        text: str(root.row[2])
    Label:
        text: str(root.row[3])
    Label:
        text: str(root.row[4])
    Label:
        text: str(root.row[5])

<Data2Item@GridLayout>:
    rows: 1
    row: [0, 0, 0]
    Label:
        text: str(root.row[0])
    Label:
        text: str(root.row[1])
    Label:
        text: str(root.row[2])

"""


class TestApp(App):
    data = ListProperty()

    def build(self):
        return Builder.load_string(RV)

    def push_data_1(self):
        indices = range(5)
        freqs = [randint(0., 50.) for x in indices]
        powers = [randint(0., 50.) for x in indices]
        ch_powers = [randint(0., 50.) for x in indices]
        ch_noises = [randint(0., 50.) for x in indices]
        osnr = [randint(0., 50.) for x in indices]
        rows = zip(indices, freqs, powers, ch_powers, ch_noises, osnr)
        self.data = [{"viewclass": "Data1Item", "row": row} for row in rows]

    def push_data_2(self):
        indices = range(70)
        freqs = [randint(0., 50.) for x in indices]
        powers = [randint(0., 50.) for x in indices]
        rows = zip(indices, freqs, powers)
        self.data = [{"viewclass": "Data2Item", "row": row} for row in rows]

TestApp().run()