KivyMD Application is crashing on startup

Question

I converted my files into an APK earlier on Google Colab, however the app just crashes when I try to open it. The Kivy splashscreen shows up then automatically crashes after that. I have included the necessary files and requirements in the buildozer.spec file and whenever I try to debug the application using ADB Logcat, it produces a lot of information and I don't know how to interpret it.

These are the files that I have included:

Amellia.ttf
beep02.wav
homeBG.jpg
liwanag.gif
main.py
screen1.kv
simpletix.ttf

main.py:

from kivymd.app import MDApp
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.core.window import Window
from kivy.lang.builder import Builder
from kivy.clock import Clock
from kivy.animation import Animation
from kivy.core.audio import SoundLoader

         
Window.size = (400, 700)

class SplashScreen(Screen):
    def on_enter(self, *args):
        Clock.schedule_once(self.switch_to_home, 5)

    def switch_to_home(self, *args):
        self.manager.current = 'home'

class HomeScreen(Screen):
    id = 1

    def on_enter(self):

        self.start1()

    def start1(self, *args):

        if self.id > 5:
           self.manager.current = 'feedback'
           return


        anim = Animation(opacity=1, duration=1)
        anim += Animation(opacity=1, duration=3)
        anim += Animation(opacity=0, duration=1)
        anim.bind(on_complete=self.start1)
        anim.start(self.ids[f"text{self.id}"]) 


        if self.id <= 5:
            self.id += 1
           

class FeedbackOption(Screen):
    def on_enter(self):
        sound = SoundLoader.load('beep02.wav')
        sound.play()
        

class CameraScreen(Screen):
    pass

         
class WindowManager(ScreenManager):
    pass


class Screen(MDApp):
    
    def build(self):
        
        kv = Builder.load_file('screen1.kv')

        return kv


if __name__ == '__main__':
    Screen().run()

screen1.kv:

WindowManager:
    SplashScreen:
        name: "splash"
    HomeScreen:
        name: "home"
    FeedbackOption:
        name: "feedback"
    CameraScreen:
        name: "camera"


<SplashScreen>:
    MDFloatLayout:
        md_bg_color: 1, 1, 1, 1
        Image:
            source: "liwanag.gif"
            size_hint: 0.5, 0.5
            pos_hint: {'center_x': 0.5,'center_y': 0.6}
            anim_delay: 0
            anim_loop: 1
            
        MDLabel:
            text: "Liwanag"
            pos_hint: {'center_x': 0.5, 'center_y': 0.25}
            halign: 'center'
            theme_text_color: 'Custom'
            text_color: 0,0,0,1
            font_size: "45sp"
            font_name: "Amellia.ttf"
            
<HomeScreen>:
    MDFloatLayout:
        md_bg_color: 1, 1, 1, 1
        Image:
            keep_ratio: False
            allow_stretch: True
            source: "homeBG.jpg"

        MDLabel:
            id: text1
            text: "Hello"
            halign: "center"
            font_name: "simpletix.ttf"
            font_size: "40sp"
            opacity: 0
        MDLabel:
            id: text2
            text: "Welcome to Liwanag"
            halign: "center"
            font_name: "simpletix.ttf"
            font_size: "25sp"
            opacity: 0
        MDLabel:
            id: text3
            text: "We offers 2 feedback features for you to choose from. Please choose an option after hearing the beep sound"
            halign: "center"
            font_name: "simpletix.ttf"
            font_size: "20sp"
            opacity: 0
        MDLabel:
            id: text4
            text: "double tap for text-to-speech feedback"
            halign: "center"
            font_name: "simpletix.ttf"
            font_size: "25sp"
            opacity: 0
        MDLabel:
            id: text5
            text: "triple tap for patterned vibration"
            halign: "center"
            font_name: "simpletix.ttf"
            font_size: "25sp"
            opacity: 0
  
<FeedbackOption>:
    md_bg_color: 1, 1, 1, 1
    Image:
        keep_ratio: False
        allow_stretch: True
        source: "homeBG.jpg"

<CameraScreen>:
    Button:
        text: "camera"
        on_release:
            app.root.current = "home"
            root.manager.transition.direction = "left"

I couldn't paste the contents of my buildozer and logcat here, because it's too long, but here's the buildozer.spec pastebin link and the adb logcat output.

KivyMD Application is crashing on startup

0 Answers0