我想开发一个应用程序，使用语音命令将一个页面导航到另一个页面
这是我的代码
public class mainActivity extends Activity implements OnClickListener {
/** Called when the activity is first created. */
ArrayList<String> StoredCommand = new ArrayList<String>();
private static final String TAG = "VoiceRecognition";
private static final int VOICE_RECOGNITION_REQUEST_CODE = 1234;
private static final Context View = null;
private ListView mList;
private Handler mHandler;
private Spinner mSupportedLanguageView;
/**
* Called with the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mHandler = new Handler();
StoredCommand.add("Path Recoder");
StoredCommand.add("Path Selector");
StoredCommand.add("Stop");
StoredCommand.add("Pause");
// Inflate our UI from its XML layout description.
setContentView(R.layout.main);
// Get display items for later interaction
Button speakButton = (Button) findViewById(R.id.btn_speak);
mList = (ListView) findViewById(R.id.list);
mSupportedLanguageView = (Spinner) findViewById(R.id.supported_languages);
// Check to see if a recognition activity is present
PackageManager pm = getPackageManager();
List<ResolveInfo> activities = pm.queryIntentActivities(
new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH), 0);
if (activities.size() != 0) {
speakButton.setOnClickListener(this);
} else {
speakButton.setEnabled(false);
speakButton.setText("Recognizer not present");
}
// Most of the applications do not have to handle the voice settings. If the application
// does not require a recognition in a specific language (i.e., different from the system
// locale), the application does not need to read the voice settings.
refreshVoiceSettings();
}
/**
* Handle the click on the start recognition button.
*/
public void onClick(View v) {
if (v.getId() == R.id.btn_speak) {
startVoiceRecognitionActivity();
}
}
/**
* Fire an intent to start the speech recognition activity.
*/
private void startVoiceRecognitionActivity() {
Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
// Specify the calling package to identify your application
intent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, getClass().getPackage().getName());
// Display an hint to the user about what he should say.
intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Speech recognition demo");
// Given an hint to the recognizer about what the user is going to say
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
// Specify how many results you want to receive. The results will be sorted
// where the first result is the one with higher confidence.
intent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 5);
// Specify the recognition language. This parameter has to be specified only if the
// recognition has to be done in a specific language and not the default one (i.e., the
// system locale). Most of the applications do not have to set this parameter.
if (!mSupportedLanguageView.getSelectedItem().toString().equals("Default")) {
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE,
mSupportedLanguageView.getSelectedItem().toString());
}
startActivityForResult(intent, VOICE_RECOGNITION_REQUEST_CODE);
}
/**
* Handle the results from the recognition activity.
*/
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == VOICE_RECOGNITION_REQUEST_CODE && resultCode == RESULT_OK) {
// Fill the list view with the strings the recognizer thought it could have heard
ArrayList<String> matches = data.getStringArrayListExtra(
RecognizerIntent.EXTRA_RESULTS);
mList.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,
matches));
StringBuilder sb=new StringBuilder() ;
for (String match:matches){
switch(resultCode) {
case RESULT_OK:
Log.i(TAG, "RESULT_OK");
if(StoredCommand==matches)
{
//Button next=(Button)findViewById(R.id.btn_speak);
if (matches.contains("Path Recoder"))
{
Intent myIntent = new Intent(View, PahtRecoder.class);
startActivityForResult(myIntent, 0);
}
else if(matches.contains("path selector"))
{
Intent myIntent = new Intent(View, Pahtselector.class);
startActivityForResult(myIntent, 0);
}
else if(matches.contains("stop"))
{
Intent myIntent = new Intent(View, Pahtselector.class);
startActivityForResult(myIntent, 0);
}
else if(matches.contains("start"))
{
Intent myIntent = new Intent(View, Pahtselector.class);
startActivityForResult(myIntent, 0);
}
}
else
{
Log.i(TAG, "COMMAND_NOT_MATCHING");
}
break;
case RESULT_CANCELED:
Log.i(TAG, "RESULT_CANCELED");
break;
case RecognizerIntent.RESULT_AUDIO_ERROR:
Log.i(TAG, "RESULT_AUDIO_ERROR");
break;
case RecognizerIntent.RESULT_CLIENT_ERROR:
Log.i(TAG, "RESULT_CLIENT_ERROR");
break;
case RecognizerIntent.RESULT_NETWORK_ERROR:
Log.i(TAG, "RESULT_NETWORK_ERROR");
break;
case RecognizerIntent.RESULT_NO_MATCH:
Log.i(TAG, "RESULT_NO_MATCH");
break;
case RecognizerIntent.RESULT_SERVER_ERROR:
Log.i(TAG, "RESULT_SERVER_ERROR");
break;
default:
Log.i(TAG, "RESULT_UNKNOWN");
break;
}
}
}
else{
Log.e("TAG", "Recognition is Failed");
}
super.onActivityResult(requestCode, resultCode, data);
}
private void refreshVoiceSettings() {
Log.i(TAG, "Sending broadcast");
sendOrderedBroadcast(RecognizerIntent.getVoiceDetailsIntent(this), null,
new SupportedLanguageBroadcastReceiver(), null, Activity.RESULT_OK, null, null);
}
private void updateSupportedLanguages(List<String> languages) {
// We add "Default" at the beginning of the list to simulate default language.
languages.add(0, "Default");
SpinnerAdapter adapter = new ArrayAdapter<CharSequence>(this,
android.R.layout.simple_spinner_item, languages.toArray(
new String[languages.size()]));
mSupportedLanguageView.setAdapter(adapter);
}
private void updateLanguagePreference(String language) {
TextView textView = (TextView) findViewById(R.id.language_preference);
textView.setText(language);
}
/**
* Handles the response of the broadcast request about the recognizer supported languages.
*
* The receiver is required only if the application wants to do recognition in a specific
* language.
*/
private class SupportedLanguageBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, final Intent intent) {
Log.i(TAG, "Receiving broadcast " + intent);
final Bundle extra = getResultExtras(false);
if (getResultCode() != Activity.RESULT_OK) {
mHandler.post(new Runnable() {
@Override
public void run() {
showToast("Error code:" + getResultCode());
}
});
}
if (extra == null) {
mHandler.post(new Runnable() {
@Override
public void run() {
showToast("No extra");
}
});
}
if (extra.containsKey(RecognizerIntent.EXTRA_SUPPORTED_LANGUAGES)) {
mHandler.post(new Runnable() {
@Override
public void run() {
updateSupportedLanguages(extra.getStringArrayList(
RecognizerIntent.EXTRA_SUPPORTED_LANGUAGES));
}
});
}
if (extra.containsKey(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE)) {
mHandler.post(new Runnable() {
@Override
public void run() {
updateLanguagePreference(
extra.getString(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE));
}
});
}
}
private void showToast(String text) {
Toast.makeText(mainActivity.this, text, 1000).show();
}
}
根据存储的命令，我需要导航这些页面。但结果是谷歌语音选项工作，但命令不工作。我的模式匹配有任何错误...请给我解决方案。 谢谢
答案 0 :(得分：1)
尝试将其作为onActivityResult()的最小实现：
if (requestCode == VOICE_RECOGNITION_REQUEST_CODE && resultCode == RESULT_OK)
{
ArrayList<String> matches = data.getStringArrayListExtra(
RecognizerIntent.EXTRA_RESULTS);
mList.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,
matches));
for (String bestMatch:matches)
{
if (bestMatch.equalsIgnoreCase("Path Recoder"))
{
Intent myIntent = new Intent(View, PahtRecoder.class);
startActivityForResult(myIntent, 0);
}
else if(bestMatch.equalsIgnoreCase("Path Selector"))
{
Intent myIntent = new Intent(View, Pahtselector.class);
startActivityForResult(myIntent, 0);
}
else if(bestMatch.equalsIgnoreCase("Stop"))
{
Intent myIntent = new Intent(View, Pahtselector.class);
startActivityForResult(myIntent, 0);
}
else if(bestMatch.equalsIgnoreCase("Pause"))
{
Intent myIntent = new Intent(View, Pahtselector.class);
startActivityForResult(myIntent, 0);
}
else
{
Log.i(TAG, "COMMAND_NOT_MATCHING");
}
}
}
进一步更新：我的帖子错误 - StoredCommand不应该使用;在较旧的语音识别平台上，它们将被提供一系列可能的话语，并且引擎会尝试将您所说的与可能性相匹配。但是，Android上的默认引擎不需要此功能。那么你的mList会显示什么？
另请注意，我尚未测试上述任何代码...
答案 1 :(得分：0)
大家都知道这是使用语音命令从一个页面导航到另一个页面的代码。任何一个页面都很有用
public class mainActivity extends Activity实现OnClickListener { /** 在第一次创建活动时调用。 * /
private static final String TAG = "VoiceRecognition";
private static final int VOICE_RECOGNITION_REQUEST_CODE = 1234;
private static final Context View = null;
private ListView mList;
private Handler mHandler;
private Spinner mSupportedLanguageView;
/**
* Called with the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mHandler = new Handler();
// Inflate our UI from its XML layout description.
setContentView(R.layout.main);
// Get display items for later interaction
Button speakButton = (Button) findViewById(R.id.btn_speak);
mList = (ListView) findViewById(R.id.list);
mSupportedLanguageView = (Spinner) findViewById(R.id.supported_languages);
// Check to see if a recognition activity is present
PackageManager pm = getPackageManager();
List<ResolveInfo> activities = pm.queryIntentActivities(
new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH), 0);
if (activities.size() != 0) {
speakButton.setOnClickListener(this);
} else {
speakButton.setEnabled(false);
speakButton.setText("Recognizer not present");
}
// Most of the applications do not have to handle the voice settings. If the application
// does not require a recognition in a specific language (i.e., different from the system
// locale), the application does not need to read the voice settings.
refreshVoiceSettings();
}
/**
* Handle the click on the start recognition button.
*/
public void onClick(View v) {
if (v.getId() == R.id.btn_speak) {
startVoiceRecognitionActivity();
}
}
/**
* Fire an intent to start the speech recognition activity.
*/
private void startVoiceRecognitionActivity() {
Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
// Specify the calling package to identify your application
intent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, getClass().getPackage().getName());
// Display an hint to the user about what he should say.
intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Speech recognition demo");
// Given an hint to the recognizer about what the user is going to say
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
// Specify how many results you want to receive. The results will be sorted
// where the first result is the one with higher confidence.
intent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 5);
// Specify the recognition language. This parameter has to be specified only if the
// recognition has to be done in a specific language and not the default one (i.e., the
// system locale). Most of the applications do not have to set this parameter.
if (!mSupportedLanguageView.getSelectedItem().toString().equals("Default")) {
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE,
mSupportedLanguageView.getSelectedItem().toString());
}
startActivityForResult(intent, VOICE_RECOGNITION_REQUEST_CODE);
}
/**
* Handle the results from the recognition activity.
*/
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == VOICE_RECOGNITION_REQUEST_CODE && resultCode == RESULT_OK) {
// Fill the list view with the strings the recognizer thought it could have heard
ArrayList<String> matches = data.getStringArrayListExtra(
RecognizerIntent.EXTRA_RESULTS);
mList.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,
matches));
for (String bestMatch : matches) {
if (bestMatch.contains("record") || bestMatch.contains("cod") || bestMatch.contains("ed")) {
// Intent myIntent = new Intent(View, PahtRecoder.class);
// startActivityForResult(myIntent, 0);
Intent my = new Intent(getApplicationContext(),
PathRecorderStart.class);
startActivityForResult(my, 0);
}
else if (bestMatch.contains("select") || bestMatch.contains("elect") || bestMatch.contains("ct")) {
// Intent myIntent = new Intent(View, PahtRecoder.class);
// startActivityForResult(myIntent, 0);
Intent my = new Intent(getApplicationContext(),
PathSelectorOptions.class);
startActivityForResult(my, 0);
}
else {
Log.i(TAG, "COMMAND_NOT_MATCHING");
}
}
}
super.onActivityResult(requestCode, resultCode, data);
}
private void refreshVoiceSettings() {
Log.i(TAG, "Sending broadcast");
sendOrderedBroadcast(RecognizerIntent.getVoiceDetailsIntent(this), null,
new SupportedLanguageBroadcastReceiver(), null, Activity.RESULT_OK, null, null);
}
private void updateSupportedLanguages(List<String> languages) {
// We add "Default" at the beginning of the list to simulate default language.
languages.add(0, "Default");
SpinnerAdapter adapter = new ArrayAdapter<CharSequence>(this,
android.R.layout.simple_spinner_item, languages.toArray(
new String[languages.size()]));
mSupportedLanguageView.setAdapter(adapter);
}
private void updateLanguagePreference(String language) {
TextView textView = (TextView) findViewById(R.id.language_preference);
textView.setText(language);
}
/**
* Handles the response of the broadcast request about the recognizer supported languages.
*
* The receiver is required only if the application wants to do recognition in a specific
* language.
*/
private class SupportedLanguageBroadcastReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, final Intent intent) {
Log.i(TAG, "Receiving broadcast " + intent);
final Bundle extra = getResultExtras(false);
if (getResultCode() != Activity.RESULT_OK) {
mHandler.post(new Runnable() {
@Override
public void run() {
showToast("Error code:" + getResultCode());
}
});
}
if (extra == null) {
mHandler.post(new Runnable() {
@Override
public void run() {
showToast("No extra");
}
});
}
if (extra.containsKey(RecognizerIntent.EXTRA_SUPPORTED_LANGUAGES)) {
mHandler.post(new Runnable() {
@Override
public void run() {
updateSupportedLanguages(extra.getStringArrayList(
RecognizerIntent.EXTRA_SUPPORTED_LANGUAGES));
}
});
}
if (extra.containsKey(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE)) {
mHandler.post(new Runnable() {
@Override
public void run() {
updateLanguagePreference(
extra.getString(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE));
}
});
}
}
private void showToast(String text) {
Toast.makeText(mainActivity.this, text, 1000).show();
}
}
}