Voice input
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Every Wear OS device comes with a microphone, so users can use their voice to interact with the
device. You can divide these into three types of interactions:
- Record audio
- Get free-form speech input
- Voice actions
Record audio
Recording audio on a Wear OS device works the same way as it would on a phone. Refer to the
MediaRecorder documentation to learn more about
recording audio on Android. You can also look at a sample implementation in the
Wear Speaker sample
on Github.
Call the system's built-in Speech Recognizer activity to get speech input from users. Use speech
input to send messages or perform searches.
In your app, call startActivityForResult()
using the ACTION_RECOGNIZE_SPEECH
action. This starts the speech recognition activity, and you can then handle the result in
onActivityResult()
.
The following code sample shows how to start and handle a speech recognition activity.
var textForVoiceInput by remember { mutableStateOf("") }
val voiceLauncher =
rememberLauncherForActivityResult(
ActivityResultContracts.StartActivityForResult()
) { activityResult ->
// This is where you process the intent and extract the speech text from the intent.
activityResult.data?.let { data ->
val results = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS)
textForVoiceInput = results?.get(0) ?: "None"
}
}
val scrollState = rememberScrollState()
ScreenScaffold(scrollState = scrollState) {
// rest of implementation here
// ...
Column(
// rest of implementation here
// ...
// Create an intent that can start the Speech Recognizer activity
val voiceIntent: Intent = Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH).apply {
putExtra(
RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM
)
putExtra(
RecognizerIntent.EXTRA_PROMPT,
stringResource(R.string.voice_text_entry_label)
)
}
// Invoke the process from a chip
Chip(
onClick = {
voiceLauncher.launch(voiceIntent)
},
label = stringResource(R.string.voice_input_label),
secondaryLabel = textForVoiceInput
)
}
}
Voice Actions
Voice Actions and Assistant App Actions aren't supported at this time except for Wear OS apps in
China. Read more about
Voice Actions support
for China.
Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
Last updated 2024-11-12 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-11-12 UTC."],[],[],null,["Every Wear OS device comes with a microphone, so users can use their voice to interact with the\ndevice. You can divide these into three types of interactions:\n\n- Record audio\n- Get free-form speech input\n- Voice actions\n\nRecord audio\n\n\nRecording audio on a Wear OS device works the same way as it would on a phone. Refer to the\n[MediaRecorder documentation](/guide/topics/media/mediarecorder) to learn more about\nrecording audio on Android. You can also look at a sample implementation in the\n[Wear Speaker sample](https://github.com/android/wear-os-samples/tree/main/WearSpeakerSample)\non Github.\n\nGet free-form speech input\n\n\nCall the system's built-in Speech Recognizer activity to get speech input from users. Use speech\ninput to send messages or perform searches.\n\n\nIn your app, call [startActivityForResult()](/reference/android/app/Activity#startActivityForResult(android.content.Intent, int))\nusing the [ACTION_RECOGNIZE_SPEECH](/reference/android/speech/RecognizerIntent#ACTION_RECOGNIZE_SPEECH)\naction. This starts the speech recognition activity, and you can then handle the result in\n[onActivityResult()](/reference/android/app/Activity#onActivityResult(int, int, android.content.Intent)).\n\n\nThe following code sample shows how to start and handle a speech recognition activity. \n\n```kotlin\nvar textForVoiceInput by remember { mutableStateOf(\"\") }\n\nval voiceLauncher =\n rememberLauncherForActivityResult(\n ActivityResultContracts.StartActivityForResult()\n ) { activityResult -\u003e\n // This is where you process the intent and extract the speech text from the intent.\n activityResult.data?.let { data -\u003e\n val results = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS)\n textForVoiceInput = results?.get(0) ?: \"None\"\n }\n }\n\nval scrollState = rememberScrollState()\n\nScreenScaffold(scrollState = scrollState) {\n // rest of implementation here\n // ...\n Column(\n // rest of implementation here\n // ...\n\n // Create an intent that can start the Speech Recognizer activity\n val voiceIntent: Intent = Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH).apply {\n putExtra(\n RecognizerIntent.EXTRA_LANGUAGE_MODEL,\n RecognizerIntent.LANGUAGE_MODEL_FREE_FORM\n )\n\n putExtra(\n RecognizerIntent.EXTRA_PROMPT,\n stringResource(R.string.voice_text_entry_label)\n )\n }\n // Invoke the process from a chip\n Chip(\n onClick = {\n voiceLauncher.launch(voiceIntent)\n },\n label = stringResource(R.string.voice_input_label),\n secondaryLabel = textForVoiceInput\n )\n }\n}https://github.com/android/snippets/blob/5673ffc60b614daf028ee936227128eb8c4f9781/wear/src/main/java/com/example/wear/snippets/voiceinput/VoiceInputScreen.kt#L73-L133\n```\n\nVoice Actions\n\nVoice Actions and Assistant App Actions aren't supported at this time except for Wear OS apps in\nChina. Read more about\n[Voice Actions support\nfor China](/training/wearables/apps/creating-app-china#voice-actions-support)."]]