【发布时间】：2012-06-13 06:43:29
【问题描述】：
我想开发一个应用程序来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起作用。我的模式匹配有什么问题......请给我解决方案。 谢谢
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标签： android