build(workflow): add sherpa ncnn library download step

- Add new workflow step to download and extract Sherpa NCNN library
- Create target directory for jniLibs
- Download APK from GitHub releases
- Extract specific library file for arm64-v8a architecture
- Add verification step to ensure library extraction
- Update .gitignore to exclude downloaded sherpa.apk file

Author: NetLops

.github/workflows/release.yml

@@ -33,6 +33,20 @@ jobs:
       - name: Grant execute permission for gradlew
         run: chmod +x gradlew
 
+      - name: Download and Extract Sherpa NCNN Library
+        run: |
+          # Create target directory
+          mkdir -p app/src/main/jniLibs/arm64-v8a
+          
+          # Download the APK containing the library
+          curl -L -o sherpa.apk https://github.com/k2-fsa/sherpa-ncnn/releases/download/v2.1.15/sherpa-ncnn-2.1.15-cpu-arm64-v8a-bilingual-en-zh.apk
+          
+          # Extract the specific library file
+          unzip -j sherpa.apk lib/arm64-v8a/libsherpa-ncnn-jni.so -d app/src/main/jniLibs/arm64-v8a/
+          
+          # Verify file exists
+          ls -l app/src/main/jniLibs/arm64-v8a/libsherpa-ncnn-jni.so
+
       - name: Build Release APK
         run: ./gradlew assembleRelease
 

.gitignore

@@ -42,3 +42,4 @@ gradle/gradle-8.7
 mnn/build/*
 mnn/build
 kls_database.db
+sherpa.apk