recycle_view.py

from kivy.app import App
from kivy.lang import Builder
from kivy.uix.button import Button
from kivy.uix.recycleview import RecycleView
from kivy.uix.boxlayout import BoxLayout
 
items = [
    {"color":(1, 1, 1, 1), "font_size": "20sp", "text": "white",     "input_data": ["some","random","data"]},
    {"color":(.5,1, 1, 1), "font_size": "30sp", "text": "lightblue", "input_data": [1,6,3]},
    {"color":(.5,.5,1, 1), "font_size": "40sp", "text": "blue",      "input_data": [64,16,9]},
    {"color":(.5,.5,.5,1), "font_size": "70sp", "text": "gray",      "input_data": [8766,13,6]},
    {"color":(1,.5,.5, 1), "font_size": "60sp", "text": "orange",    "input_data": [9,4,6]},
    {"color":(1, 1,.5, 1), "font_size": "50sp", "text": "yellow",    "input_data": [852,958,123]},
{"color":(.5,1, 1, 1), "font_size": "30sp", "text": "lightblue", "input_data": [1,6,3]},
    {"color":(.5,.5,1, 1), "font_size": "40sp", "text": "blue",      "input_data": [64,16,9]},
    {"color":(.5,.5,.5,1), "font_size": "70sp", "text": "gray",      "input_data": [8766,13,6]},
    {"color":(1,.5,.5, 1), "font_size": "60sp", "text": "orange",    "input_data": [9,4,6]},
    {"color":(1, 1,.5, 1), "font_size": "50sp", "text": "yellow",    "input_data": [852,958,123]}
]
 
 
class VideoItem(BoxLayout):
    pass
 
KV = '''
 
<VideoItem>:
    color: (.5, 1, 1, 1) # value here doesn't matter, its just a placeholder, doesn't work without this
    font_size: 1 # value here doesn't matter
    text: "text" # value here doesn't matter
    input_data: self.input_data # value here doesn't matter
    orientation: 'horizontal'
    Button:
        color: root.color
        font_size: root.font_size
        text: root.text
    Button:
        color: root.color
        font_size: root.font_size
        text: root.text
    Button:
        color: root.color
        font_size: root.font_size
        text: root.text
 
RecycleView:
    data: []
    viewclass: 'VideoItem'
    RecycleBoxLayout:
        default_size: None, None
        default_size_hint: 1, None
        size_hint_y: None
        height: self.minimum_height
        orientation: 'vertical'
 
'''
 
 
class Test(App):
    def build(self):
        root = Builder.load_string(KV)
        root.data = [item for item in items]
        return root
 
 
Test().run(

Custom widget size example