How to Navigate a Google Glass GDK Immersion Application using Voice Command only?

this thing define in onCreate method

mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);     //  mAudioManager.setStreamSolo(AudioManager.STREAM_VOICE_CALL, true);    sr = SpeechRecognizer.createSpeechRecognizer(context);           sr.setRecognitionListener(new listener(context));       //      intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, "en-US");    intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);            intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);    intent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE,context.getPackageName());    sr.startListening(intent);    Log.i("111111","11111111"+"in");

This listener class simply add in your class

class  listener implements RecognitionListener          {    Context context1;    public listener(Context context)    {        //Log.i("onError startListening","enter"+"nam");        context1=context;    }    public void onReadyForSpeech(Bundle params)    {        //Log.d(TAG, "onReadyForSpeech");    }    public void onBeginningOfSpeech()    {        //Log.d(TAG, "onBeginningOfSpeech");    }    public void onRmsChanged(float rmsdB)    {        //Log.d(TAG, "onRmsChanged");    }    public void onBufferReceived(byte[] buffer)    {        //Log.d(TAG, "onBufferReceived");    }    public void onEndOfSpeech()    {        //Log.d(TAG, "onEndofSpeech");        sr.startListening(intent);    }    public void onError(int error)    {        //Log.d(TAG,  "error " +  error);        //7 -No recognition result matched.        //9 - vInsufficient permissions         //6 - No speech input         //8 RecognitionService busy.         //5 Other client side errors.         //3 Audio recording error.          //  mText.setText("error " + error);        if(error==6 || error==7 || error==4  || error==1 || error==2 || error==5 || error==3 || error==8 || error==9 )        {             sr.startListening(intent);            //Log.i("onError startListening","onError startListening"+error);        }    }    public void onResults(Bundle results)                       {        //Log.v(TAG,"onResults" + results);        ArrayList data = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);        for (int i = 0; i < data.size(); i++)        {            //Log.d(TAG, "result " + data.get(i));            //str += data.get(i);        //Toast.makeText(context1, "results: "+data.get(0).toString(), Toast.LENGTH_LONG).show();        //Log.v("my", "output"+"results: "+data.get(0).toString());        //sr.startListening(intent);                   }    }    public void onPartialResults(Bundle partialResults)    {        //Log.d(TAG, "onPartialResults");    }    public void onEvent(int eventType, Bundle params)    {        //Log.d(TAG, "onEvent " + eventType);    }}

I'm writing out the entire code in detail since it took me such a long time to get this working.. perhaps it'll save someone else valuable time.

This code is the implementation of Google Contextual Voice Commands as described on Google Developers here: Contextual voice commands

ContextualMenuActivity.java

   package com.drace.contextualvoicecommands;    import android.app.Activity;    import android.os.Bundle;    import android.view.Menu;    import android.view.MenuItem;    import com.drace.contextualvoicecommands.R;    import com.google.android.glass.view.WindowUtils;    public class ContextualMenuActivity extends Activity {    @Override    protected void onCreate(Bundle bundle) {        super.onCreate(bundle);        // Requests a voice menu on this activity. As for any other        // window feature, be sure to request this before        // setContentView() is called        getWindow().requestFeature(WindowUtils.FEATURE_VOICE_COMMANDS);        setContentView(R.layout.activity_main);    }    @Override    public boolean onCreatePanelMenu(int featureId, Menu menu) {        if (featureId == WindowUtils.FEATURE_VOICE_COMMANDS) {            getMenuInflater().inflate(R.menu.main, menu);            return true;        }        // Pass through to super to setup touch menu.        return super.onCreatePanelMenu(featureId, menu);    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        getMenuInflater().inflate(R.menu.main, menu);        return true;    }    @Override    public boolean onMenuItemSelected(int featureId, MenuItem item) {        if (featureId == WindowUtils.FEATURE_VOICE_COMMANDS) {            switch (item.getItemId()) {                case R.id.dogs_menu_item:                    // handle top-level dogs menu item                    break;                case R.id.cats_menu_item:                    // handle top-level cats menu item                    break;                case R.id.lab_menu_item:                    // handle second-level labrador menu item                    break;                case R.id.golden_menu_item:                    // handle second-level golden menu item                    break;                case R.id.calico_menu_item:                    // handle second-level calico menu item                    break;                case R.id.cheshire_menu_item:                    // handle second-level cheshire menu item                    break;                default:                    return true;            }            return true;        }        // Good practice to pass through to super if not handled        return super.onMenuItemSelected(featureId, item);    }    }

activity_main.xml (layout)

 <?xml version="1.0" encoding="utf-8"?>    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"        xmlns:tools="http://schemas.android.com/tools"        android:layout_width="match_parent"        android:layout_height="match_parent" >          <TextView        android:id="@+id/coming_soon"        android:layout_alignParentTop="true"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/voice_command_test"        android:textSize="22sp"        android:layout_marginRight="40px"        android:layout_marginTop="30px"        android:layout_marginLeft="210px" />     </RelativeLayout>

strings.xml

<resources><string name="app_name">Contextual voice commands</string><string name="voice_start_command">Voice commands</string><string name="voice_command_test">Say "Okay, Glass"</string><string name="show_me_dogs">Dogs</string><string name="labrador">labrador</string><string name="golden">golden</string><string name="show_me_cats">Cats</string><string name="cheshire">cheshire</string><string name="calico">calico</string></resources>

AndroidManifest.xml

 <manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.drace.contextualvoicecommands"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="19"        android:targetSdkVersion="19" />    <uses-permission android:name="com.google.android.glass.permission.DEVELOPMENT"/>    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name" >       <activity            android:name="com.drace.contextualvoicecommands.ContextualMenuActivity"            android:label="@string/app_name" >            <intent-filter>                <action android:name="com.google.android.glass.action.VOICE_TRIGGER" />            </intent-filter>            <meta-data                android:name="com.google.android.glass.VoiceTrigger"                android:resource="@xml/voice_trigger_start" />        </activity>    </application>    </manifest>

It's been Tested and works great under Google Glass XE22 !

You can try the snippet here: https://github.com/pscholl/glass_snippets/tree/master/hotword_detection.