我正在详细写出整个代码，因为我花了这么长时间才让它工作..也许它会节省其他人宝贵的时间。
此代码是 Google 上下文语音命令的实现，如 Google Developers 所述：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（布局）
<?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>
它已经过测试，在 Google Glass XE22 下运行良好！