Use aar in Android Java demo.

android/SherpaOnnxJavaDemo/README.md

@@ -0,0 +1,44 @@
+# Introduction
+
+Please run the following commands to download model files before you run this Android demo:
+
+```bash
+# Assume we are inside
+# /Users/fangjun/open-source/sherpa-onnx/android/SherpaOnnxJavaDemo
+
+cd app/src/main/assets/
+wget https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20.tar.bz2
+
+tar xvf sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20.tar.bz2
+rm sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20.tar.bz2
+
+mv sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/encoder-epoch-99-avg-1.int8.onnx ./
+mv sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/decoder-epoch-99-avg-1.onnx ./
+mv sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/joiner-epoch-99-avg-1.int8.onnx ./
+mv sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/tokens.txt ./
+
+rm -rf sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20/*
+
+mv encoder-epoch-99-avg-1.int8.onnx ./
+mv decoder-epoch-99-avg-1.onnx ./
+mv joiner-epoch-99-avg-1.int8.onnx ./
+mv tokens.txt ./
+```
+
+You should have the following directory structure:
+```
+(py38) fangjuns-MacBook-Pro:assets fangjun$ pwd
+/Users/fangjun/open-source/sherpa-onnx/android/SherpaOnnxJavaDemo/app/src/main/assets
+
+(py38) fangjuns-MacBook-Pro:assets fangjun$ tree .
+.
+└── sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20
+    ├── decoder-epoch-99-avg-1.onnx
+    ├── encoder-epoch-99-avg-1.int8.onnx
+    ├── joiner-epoch-99-avg-1.int8.onnx
+    └── tokens.txt
+
+1 directory, 4 files
+```
+
+Remember to remove unused files to reduce the file size of the final APK.

android/SherpaOnnxJavaDemo/app/build.gradle

@@ -8,7 +8,7 @@ android {
     defaultConfig {
         applicationId "com.k2fsa.sherpa.onnx"
         minSdk 28
-        targetSdk 32
+        targetSdk 34
         versionCode 1
         versionName "1.0"
 
@@ -25,17 +25,14 @@ android {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
-    sourceSets.main{
-        jniLibs.srcDirs = ['jniLibs']
-    }
 }
 
 dependencies {
-
     implementation 'androidx.appcompat:appcompat:1.3.1'
     implementation 'com.google.android.material:material:1.3.0'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     implementation 'pub.devrel:easypermissions:3.0.0'
-    implementation project(path: ':sherpa')
-
-}
+    implementation 'androidx.core:core-ktx:1.7.0'
+    // implementation files('/Users/fangjun/open-source/sherpa-onnx/android/SherpaOnnxAar/sherpa_onnx/build/outputs/aar/sherpa_onnx-release.aar')
+    implementation 'com.github.k2-fsa:sherpa-onnx:master-SNAPSHOT'
+}

android/SherpaOnnxJavaDemo/app/src/main/java/com/k2fsa/sherpa/onnx/service/SpeechSherpaRecognitionService.java

@@ -1,6 +1,7 @@
 package com.k2fsa.sherpa.onnx.service;
 
 import android.Manifest;
+import android.annotation.SuppressLint;
 import android.app.Notification;
 import android.app.NotificationChannel;
 import android.app.NotificationManager;
@@ -67,6 +68,16 @@ public void onCreate() {
         appViewModel = Application.getInstance().getViewModel();
         int numBytes = AudioRecord.getMinBufferSize(sampleRateInHz, channelConfig, audioFormat);
 
+        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) {
+            // TODO: Consider calling
+            //    ActivityCompat#requestPermissions
+            // here to request the missing permissions, and then overriding
+            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
+            //                                          int[] grantResults)
+            // to handle the case where the user grants the permission. See the documentation
+            // for ActivityCompat#requestPermissions for more details.
+            return;
+        }
         audioRecord = new AudioRecord(
                 audioSource,
                 sampleRateInHz,
@@ -81,22 +92,21 @@ public void onCreate() {
 
     private void initializeSherpa() {
         Log.d("Current Directory", System.getProperty("user.dir"));
-        String modelDir = "sherpa-onnx-streaming-zipformer-zh-14M-2023-02-23";
+        String modelDir = "sherpa-onnx-streaming-zipformer-bilingual-zh-en-2023-02-20";
         initializeSherpaDir(modelDir, modelDir);
-        OnlineTransducerModelConfig onlineTransducerModelConfig = OnlineTransducerModelConfig.builder()
-                .setEncoder(modelDir + "/encoder-epoch-99-avg-1.int8.onnx")
-                .setDecoder(modelDir + "/decoder-epoch-99-avg-1.onnx")
-                .setJoiner(modelDir + "/joiner-epoch-99-avg-1.int8.onnx")
-                .build();
-
-        OnlineModelConfig onlineModelConfig = OnlineModelConfig.builder()
-                .setTransducer(onlineTransducerModelConfig)
-                .setTokens(modelDir + "/tokens.txt")
-                .setModelType("zipformer")
-                .build();
-        OnlineRecognizerConfig config = OnlineRecognizerConfig.builder()
-                .setOnlineModelConfig(onlineModelConfig)
-                .build();
+        OnlineTransducerModelConfig onlineTransducerModelConfig = new OnlineTransducerModelConfig();
+        onlineTransducerModelConfig.setEncoder(modelDir + "/encoder-epoch-99-avg-1.int8.onnx");
+        onlineTransducerModelConfig.setDecoder(modelDir + "/decoder-epoch-99-avg-1.onnx");
+        onlineTransducerModelConfig.setJoiner(modelDir + "/joiner-epoch-99-avg-1.int8.onnx");
+
+        OnlineModelConfig onlineModelConfig = new OnlineModelConfig();
+        onlineModelConfig.setTransducer(onlineTransducerModelConfig);
+        onlineModelConfig.setTokens(modelDir + "/tokens.txt");
+        onlineModelConfig.setModelType("zipformer");
+        onlineModelConfig.setDebug(true);
+
+        OnlineRecognizerConfig config = new OnlineRecognizerConfig();
+        config.setModelConfig(onlineModelConfig);
         recognizer = new OnlineRecognizer(getAssets(), config);
 
         audioRecord.startRecording();
@@ -110,7 +120,7 @@ private void startRecognition() {
     }
 
     private void processSamples() {
-        OnlineStream stream = recognizer.createStream();
+        OnlineStream stream = recognizer.createStream("");
         double interval = 0.1;
         int bufferSize = (int) (interval * sampleRateInHz);
         short[] buffer = new short[bufferSize];
@@ -182,6 +192,7 @@ public IBinder onBind(Intent intent) {
     }
 
 
+    @SuppressLint("ForegroundServiceType")
     private void startForegroundService() {
         String channelId = createNotificationChannel();
 

android/SherpaOnnxJavaDemo/settings.gradle

@@ -10,8 +10,8 @@ dependencyResolutionManagement {
     repositories {
         google()
         mavenCentral()
+        maven { url 'https://jitpack.io' }
     }
 }
 rootProject.name = "SherpaOnnxJavaDemo"
 include ':app'
-include ':sherpa'

sherpa-onnx/kotlin-api/AudioTagging.kt

@@ -15,8 +15,8 @@ data class AudioTaggingModelConfig(
 )
 
 data class AudioTaggingConfig(
-    var model: AudioTaggingModelConfig,
-    var labels: String,
+    var model: AudioTaggingModelConfig = AudioTaggingModelConfig(),
+    var labels: String = "",
     var topK: Int = 5,
 )
 

sherpa-onnx/kotlin-api/KeywordSpotter.kt

@@ -5,7 +5,7 @@ import android.content.res.AssetManager
 
 data class KeywordSpotterConfig(
     var featConfig: FeatureConfig = FeatureConfig(),
-    var modelConfig: OnlineModelConfig,
+    var modelConfig: OnlineModelConfig = OnlineModelConfig(),
     var maxActivePaths: Int = 4,
     var keywordsFile: String = "keywords.txt",
     var keywordsScore: Float = 1.5f,

sherpa-onnx/kotlin-api/OfflinePunctuation.kt

@@ -3,7 +3,7 @@ package com.k2fsa.sherpa.onnx
 import android.content.res.AssetManager
 
 data class OfflinePunctuationModelConfig(
-    var ctTransformer: String,
+    var ctTransformer: String = "",
     var numThreads: Int = 1,
     var debug: Boolean = false,
     var provider: String = "cpu",

sherpa-onnx/kotlin-api/OfflineRecognizer.kt

@@ -58,14 +58,14 @@ data class OfflineModelConfig(
     var debug: Boolean = false,
     var provider: String = "cpu",
     var modelType: String = "",
-    var tokens: String,
+    var tokens: String = "",
     var modelingUnit: String = "",
     var bpeVocab: String = "",
 )
 
 data class OfflineRecognizerConfig(
     var featConfig: FeatureConfig = FeatureConfig(),
-    var modelConfig: OfflineModelConfig,
+    var modelConfig: OfflineModelConfig = OfflineModelConfig(),
     // var lmConfig: OfflineLMConfig(), // TODO(fangjun): enable it
     var decodingMethod: String = "greedy_search",
     var maxActivePaths: Int = 4,