Demo with dynamic language-model download

.gitignore

@@ -1,4 +1,3 @@
-.gradle
 .idea
 /local.properties
 /build
@@ -8,3 +7,19 @@
 *.md5
 *.lst
 *.iml
+
+### Gradle ###
+.gradle
+/build/
+
+# Ignore Gradle GUI config
+gradle-app.setting
+
+# Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)
+!gradle-wrapper.jar
+
+# Cache of project
+.gradletasknamecache
+
+# # Work around https://youtrack.jetbrains.com/issue/IDEA-116898
+# gradle/wrapper/gradle-wrapper.properties

app/build.gradle

@@ -1,18 +1,11 @@
 apply plugin: 'com.android.application'
 
-repositories {
-    google()
-    maven {
-        url 'https://alphacephei.com/maven/'
-    }
-}
-
 android {
-    compileSdkVersion 29
+    compileSdkVersion 30
     defaultConfig {
         applicationId "org.vosk.demo"
-        minSdkVersion 21
-        targetSdkVersion 29
+        minSdkVersion 24
+        targetSdkVersion 30
         versionCode 1
         versionName "1.1"
         ndk {
@@ -32,8 +25,18 @@ android {
 }
 
 dependencies {
+    implementation project(':voskapi2')
+
+    implementation 'org.slf4j:slf4j-api:1.7.7@jar'
+    implementation 'eu.lp0.slf4j:slf4j-android:1.7.7-1@jar'
+
     implementation 'androidx.appcompat:appcompat:1.2.0'
     implementation 'net.java.dev.jna:jna:5.8.0@aar'
-    implementation group: 'com.alphacephei', name: 'vosk-android', version: '0.3.23'
-    implementation project(':models')
+    implementation 'com.alphacephei:vosk-android:0.3.23'
+    // implementation 'com.github.k3b:vosk-api:0.3.27.5'
+    // implementation 'com.github.k3b:vosk-api:master-SNAPSHOT'
+    implementation 'androidx.preference:preference:1.1.1'
+    implementation 'com.google.android.material:material:1.2.1'
+    implementation 'org.jetbrains:annotations:15.0'
+    implementation 'com.google.code.gson:gson:2.8.6'
 }

app/src/main/AndroidManifest.xml

@@ -1,22 +1,41 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="org.vosk.demo">
 
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission
+        android:name="android.permission.MANAGE_EXTERNAL_STORAGE"
+        tools:ignore="ScopedStorage" />
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
 
     <application
         android:allowBackup="false"
         android:icon="@drawable/icon"
-        android:label="@string/app_name" >
+        android:label="@string/app_name"
+        android:requestLegacyExternalStorage="true">
         <activity
-            android:name="VoskActivity"
-            android:label="@string/app_name" >
+            android:name=".SettingsActivity"
+            android:theme="@style/Theme.AppCompat"
+            android:label="@string/title_activity_settings"
+            android:parentActivityName=".VoskActivity">
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value="org.vosk.demo.VoskActivity" />
+        </activity>
+        <activity
+            android:name=".VoskActivity"
+            android:label="@string/app_name">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
                 <category android:name="android.intent.category.LAUNCHER" />
+                <!--                 Makes this app visible on the application list in the Glass Launcher. -->
+                <category android:name="com.google.android.glass.category.DIRECTORY" />
             </intent-filter>
         </activity>
     </application>
+
 </manifest>

app/src/main/java/org/vosk/demo/SettingsActivity.java

@@ -0,0 +1,55 @@
+package org.vosk.demo;
+
+import android.os.Bundle;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.preference.ListPreference;
+import androidx.preference.PreferenceFragmentCompat;
+
+import org.vosk.api.LanguageModelDefinition;
+import org.vosk.api.VoskHelperAndroid;
+
+import java.io.File;
+import java.util.Collection;
+
+public class SettingsActivity extends AppCompatActivity {
+    public static final String KEY_LANG_PREF_SWITCH = "example_switch";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.settings_activity);
+        if (savedInstanceState == null) {
+            getSupportFragmentManager()
+                    .beginTransaction()
+                    .replace(R.id.settings, new SettingsFragment())
+                    .commit();
+        }
+        ActionBar actionBar = getSupportActionBar();
+        if (actionBar != null) {
+            actionBar.setDisplayHomeAsUpEnabled(true);
+        }
+    }
+
+    public static class SettingsFragment extends PreferenceFragmentCompat implements org.vosk.demo.SettingsFragment {
+        @Override
+        public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+            setPreferencesFromResource(R.xml.root_preferences, rootKey);
+
+            ListPreference localePreference = findPreference("lang");
+            Collection<LanguageModelDefinition> languages = VoskHelperAndroid.getLanguages(getContext()).values();
+            localePreference.setEntries(languages.stream().map(l -> getLocaleName(l)).toArray(CharSequence[]::new));
+            localePreference.setEntryValues(languages.stream().map(l -> l.getId()).toArray(CharSequence[]::new));
+        }
+
+        private String getLocaleName(LanguageModelDefinition l) {
+            File file = new File(VoskHelperAndroid.MODEL_FILE_ROOT_PATH, l.getId());
+            String prefix = VoskHelperAndroid.isModel(file) ? "[v] " : "[_] ";
+            return prefix + l.getLocaleName();
+        }
+    }
+
+}

app/src/main/java/org/vosk/demo/SettingsFragment.java

@@ -0,0 +1,4 @@
+package org.vosk.demo;
+
+public interface SettingsFragment {
+}