Fix buildozer configuration and use ubuntu-20.04

Author: yuqi20000915

.github/workflows/build.yml

@@ -7,28 +7,17 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     steps:
     - uses: actions/checkout@v4
 
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: '3.11'
-
-    - name: Install dependencies
-      run: |
-        sudo apt-get update
-        sudo apt-get install -y git zip unzip openjdk-17-jdk wget
-        pip install --upgrade pip
-        pip install buildozer cython
-
     - name: Build with Buildozer
-      run: |
-        buildozer android debug
-      env:
-        ANDROID_SDK_ROOT: /usr/local/lib/android/sdk
+      uses: ArtemSBulgakov/buildozer-action@v1
+      id: buildozer
+      with:
+        command: buildozer android debug
+        buildozer_version: stable
 
     - name: Upload APK
       uses: actions/upload-artifact@v4

buildozer.spec

@@ -14,10 +14,11 @@ orientation = portrait
 fullscreen = 0
 
 android.permissions = 
-android.api = 31
+android.api = 33
 android.minapi = 21
 android.ndk = 25b
 android.accept_sdk_license = True
+android.gradle_dependencies = 
 
 [buildozer]
 log_level = 2