Complete Implementation

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+
+# [Android] ========================
+# Built application files
+*.apk
+*.ap_
+
+# Files for the Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+
+## Directory-based project format:
+.idea/
+
+## File-based project format:
+*.ipr
+*.iws
+
+## Plugin-specific files:
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+
+
+# [Maven] ========================
+target/
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+release.properties
+
+
+# [Gradle-Android] ========================
+
+# Ignore Gradle GUI config
+gradle-app.setting
+
+# Gradle Signing
+signing.properties
+trestle.keystore
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.ear
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+# Misc
+/.idea/workspace.xml
+.DS_Store
+/captures
+**/*.iml
+*.class

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 27
+    defaultConfig {
+        applicationId "com.mozilla.speechmodule"
+        minSdkVersion 24
+        targetSdkVersion 27
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+    implementation project(':mozillaspeechlibrary')
+    implementation fileTree(include: ['*.jar'], dir: 'libs')
+    implementation 'com.android.support:appcompat-v7:27.1.1'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
+    implementation 'com.jjoe64:graphview:4.2.2'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/com/mozilla/speechmodule/ExampleInstrumentedTest.java

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+package com.mozilla.speechmodule;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("com.mozilla.speechmodule", appContext.getPackageName());
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.mozilla.speechmodule">
+
+    <uses-permission android:name="android.permission.RECORD_AUDIO"></uses-permission>
+    <uses-permission android:name="android.permission.INTERNET"></uses-permission>
+
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name="com.mozilla.speechapp.MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/com/mozilla/speechapp/MainActivity.java

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+package com.mozilla.speechapp;
+
+import android.Manifest;
+import android.app.Activity;
+import android.content.pm.PackageManager;
+import android.support.annotation.NonNull;
+import android.support.v4.app.ActivityCompat;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.Button;
+import android.widget.EditText;
+
+import com.jjoe64.graphview.GraphView;
+import com.jjoe64.graphview.series.DataPoint;
+import com.jjoe64.graphview.series.LineGraphSeries;
+import com.mozilla.speechlibrary.ISpeechRecognitionListener;
+import com.mozilla.speechlibrary.MozillaSpeechService;
+import com.mozilla.speechlibrary.STTResult;
+import com.mozilla.speechmodule.R;
+
+import static android.support.constraint.Constraints.TAG;
+
+public class MainActivity extends AppCompatActivity implements ISpeechRecognitionListener {
+
+    private Button mButtonStart, mButtonCancel;
+    private MozillaSpeechService mMozillaSpeechService;
+    private GraphView mGraph;
+    private long mDtstart;
+    private LineGraphSeries<DataPoint> mSeries1;
+    private EditText mPlain_text_input;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        mMozillaSpeechService = MozillaSpeechService.getInstance();
+        mMozillaSpeechService.addListener(this);
+        initialize();
+    }
+
+    private void initialize() {
+
+        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO)
+                != PackageManager.PERMISSION_GRANTED) {
+
+            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.RECORD_AUDIO},
+                    123);
+        }
+
+        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
+                != PackageManager.PERMISSION_GRANTED) {
+
+            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE},
+                    124);
+        }
+        mButtonStart = findViewById(R.id.button_start);
+        mButtonCancel = findViewById(R.id.button_cancel);
+
+        mPlain_text_input = findViewById(R.id.plain_text_input);
+        mButtonStart.setOnClickListener((View v) ->  {
+            try {
+                mDtstart = System.currentTimeMillis();
+                mSeries1.resetData(new DataPoint[0]);
+                mMozillaSpeechService.start(getApplicationContext());
+            } catch (Exception e) {
+                Log.d(TAG, e.getLocalizedMessage());
+                e.printStackTrace();
+            }
+        });
+
+        mButtonCancel.setOnClickListener((View v) ->  {
+            try {
+                mMozillaSpeechService.cancel();
+            } catch (Exception e) {
+                Log.d(TAG, e.getLocalizedMessage());
+                e.printStackTrace();
+            }
+        });
+
+        mGraph = findViewById(R.id.graph);
+        mSeries1 = new LineGraphSeries<>(new DataPoint[0]);
+        mGraph.addSeries(mSeries1);
+        mGraph.getViewport().setXAxisBoundsManual(true);
+        mGraph.getViewport().setScalable(true);
+        mGraph.getViewport().setScalableY(true);
+        mGraph.getViewport().setScrollable(true); // enables horizontal scrolling
+        mGraph.getViewport().setScrollableY(true); // enables vertical scrolling
+    }
+
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+    }
+
+    public void onSpeechStatusChanged(MozillaSpeechService.SpeechState aState, Object aPayload){
+        this.runOnUiThread(() -> {
+            switch (aState) {
+                case DECODING:
+                    mPlain_text_input.append("Decoding... \n");
+                    break;
+                case MIC_ACTIVITY:
+                    long mPointx = System.currentTimeMillis() - mDtstart;
+                    mSeries1.appendData(new DataPoint(Math.round(mPointx) + 1, (double)aPayload * -1), true, 3000);
+                    break;
+                case STT_RESULT:
+                    String message = String.format("Success: %s (%s)", ((STTResult)aPayload).mTranscription, ((STTResult)aPayload).mConfidence);
+                    mPlain_text_input.append(message + "\n");
+                    break;
+                case START_LISTEN:
+                    mPlain_text_input.append("Started to listen\n");
+                    break;
+                case NO_VOICE:
+                    mPlain_text_input.append("No Voice detected\n");
+                    break;
+                case CANCELED:
+                    mPlain_text_input.append("Canceled\n");
+                    break;
+                case ERROR:
+                    mPlain_text_input.append("Error:" + aPayload + " \n");
+                    break;
+                default:
+                    break;
+            }
+        });
+    }
+}

app/src/main/res/drawable-v24/ic_launcher_foreground.xml

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+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1" />
+</vector>