带有colab的黑屏简单kivy

Question

I have made a simple app with kivy, just to test how to create a .apk and using colab to compile I get a black screen on my phone and in BlueStacks. This is the app:

main.py:

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.widget import Widget


class BoxLayoutMain(BoxLayout):
    pass

class MainWidget(Widget):
    pass

class dctApp(App):
    pass

dctApp().run()

and dctApp.kv:

BoxLayoutMain:

<MainWidget>:

<BoxLayoutMain>:
    orientation: "vertical"

    Label:
        text: "Lash"
        font_name: "fonts/DINNeuzeitGrotesk-Light Regular.ttf"
        font_size: "40dp"
        size_hint: 1, 0.1
        background_color: (255/255, 142/255, 142/255, 1)
        canvas.before:
            Color:
                rgba: self.background_color
            Rectangle:
                size: self.size
                pos: self.pos


    Carousel:
        direction: "bottom"

        Button:
            text: "this is a test"

    BoxLayout:
        orientation: "horizontal"
        size_hint: 1, 0.1

        Button:
            text: "B"
            background_normal: ""
            background_color: (255/255, 142/255, 142/255, 255/255)

        Button:
            text: "B"
            background_normal: ""
            background_color: (255/255, 142/255, 142/255, 255/255)

        Button:
            text: "B"
            background_normal: ""
            background_color: (255/255, 142/255, 142/255, 255/255)

It's basically a .py file and a .kv file to show some items. When I run it in Pycharm it works fine, but when I create the .apk in Colab, it's just black. Please help! I have no idea what to do! Thank you

Answer 1

Your kv file name is wrong. It should be dct.kv . See the documentation .