Is there a way to nest voice triggers when launching an app on Google Glass using the GDK? For example instead of just saying "ok, glass" -> "What's its power level?" I'd like to have the app present an option. For example "ok, glass" -> "What's its power level?" -> "Over 9000" OR "Under 9000". Any help would be great!
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问题:
回答1:
If you have multiple activities/services installed on Glass that have the same voice trigger intent filter, all of their names (based on the android:label attribute of the <activity> or <service> tag in AndroidManifest.xml) will appear in a disambiguation "submenu" when you speak that voice trigger.
For example (assume that res/xml/play_a_game_trigger.xml represents a voice trigger for the string "play a game"):
<activity android:label="Tennis"> <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/play_a_game_trigger" /> </activity> <activity android:label="Bowling"> <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/play_a_game_trigger" /> </activity> would give you a voice menu flow that looks like
ok glass → play a game → Tennis Bowling Do note, however, that this menu would also include activities/services from other APKs that use the same voice trigger as well.
You can find more details at the Voice Input page of the GDK documentation.
回答2:
The proper way to do this is using an input tag inside the trigger
<trigger keyword="@string/start_app" > <input prompt="@string/promt_text" /> </trigger> This prompts an input and waits for more audio speech.
Then in your activity you can capture this text with:
ArrayList<String> text = getIntent().getExtras().getStringArrayList(RecognizerIntent.EXTRA_RESULTS);