android - Recognition Listener 不听

Question

我创建了这个服务来在后台监听，职业服务，但不知道监听器是否监听，但只在服务启动时显示在 Logcat 消息中......我已经阅读了 stackoberflow 中的其他问题但是任何以我为例。

public class ServicioVoz extends RecognitionService {

private SpeechRecognizer sr;
private VoiceResultsListener vrl;
public Principal principal;

@Override
public void onCreate() {
    super.onCreate();
    Log.i("Dins del servei", "Arrancat");
}

@Override
public void onDestroy() {
    super.onDestroy();
    Log.i("SimpleVoiceService", "Service stopped");
}

@Override
protected void onCancel(Callback listener) {
    sr.cancel();
}

@Override
protected void onStartListening(Intent recognizerIntent, Callback listener) {
    Log.e("escoltant", "________________________________");
    sr.setRecognitionListener(new VoiceResultsListener(listener));
    sr.startListening(recognizerIntent);
}

@Override
protected void onStopListening(Callback listener) {
    sr.stopListening();
    Log.e("Atura d'escoltar", "________________________________");
}

/* INICIALIZAMOS UNA NUEVA CLASE*/
private class VoiceResultsListener implements RecognitionListener {

    private Callback UserListener;

    public VoiceResultsListener(Callback userSpecifiedListener) {
        UserListener = userSpecifiedListener;
    }

    @Override
    public void onBeginningOfSpeech() {
        try {
            UserListener.beginningOfSpeech();
        } catch (RemoteException e) {
            e.printStackTrace();
            Log.e("ERROR", "No comença ha escoltar");
        }
    }

    @Override
    public void onBufferReceived(byte[] buffer) {
        try {
            UserListener.bufferReceived(buffer);
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onEndOfSpeech() {
        try {
            UserListener.endOfSpeech();
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onError(int error) {
        try {
            UserListener.error(error);
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onEvent(int eventType, Bundle params) {
        ;
    }

    @Override
    public void onPartialResults(Bundle partialResults) {
        try {
            UserListener.partialResults(partialResults);
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onReadyForSpeech(Bundle params) {
        try {
            UserListener.readyForSpeech(params);
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onResults(Bundle results) {
        Log.e("resultats", "nose que possar");
        try {
            UserListener.results(results);
            ArrayList<String> matches = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
            String text = "";
            for (String result : matches)
                text += result + "\n";

            Log.e("", text);
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onRmsChanged(float rmsdB) {
        try {
            UserListener.rmsChanged(rmsdB);
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }
}

Answer 1

使用以下类通过您的自定义 UI 将语音转换为文本。

import java.util.ArrayList;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.speech.RecognitionListener;
import android.speech.RecognizerIntent;
import android.speech.SpeechRecognizer;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class SRActivity extends Activity implements RecognitionListener {

    Context context;
    private SpeechRecognizer speech;

    ProgressDialog progressDialog;
    String tag = getPackageName().toString();
    TextView textView;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sr);
        context = SRActivity.this;
        Button speakBtn = (Button) findViewById(R.id.button1);
        textView = (TextView) findViewById(R.id.text1);
        speakBtn.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {

                speech = SpeechRecognizer
                        .createSpeechRecognizer(SRActivity.this);
                speech.setRecognitionListener(SRActivity.this);

                Intent intent = new Intent(
                        RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
                intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE,
                        "en");
                intent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE,
                        SRActivity.this.getPackageName());

                // workin fine
                intent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 1);

                // use judiciously! Additionally, depending on the recognizer
                // implementation, these values may have no effect.
                intent.putExtra(
                        RecognizerIntent.EXTRA_SPEECH_INPUT_COMPLETE_SILENCE_LENGTH_MILLIS,
                        3000L);

                // use judiciously! Additionally, depending on the recognizer
                // implementation, these values may have no effect.
                intent.putExtra(
                        RecognizerIntent.EXTRA_SPEECH_INPUT_MINIMUM_LENGTH_MILLIS,
                        5000L);

                speech.startListening(intent);
                progressDialog = new ProgressDialog(context);
                progressDialog.show();
                progressDialog.setMessage("My Custom Dialog here");
            }
        });

        Button button2 = (Button) findViewById(R.id.button2);
        button2.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

                // Stop Listning
                speech.stopListening();

            }
        });
    }

    /*
     * (non-Javadoc)
     * 
     * @see android.speech.RecognitionListener#onBeginningOfSpeech()
     */
    @Override
    public void onBeginningOfSpeech() {
        Log.e(tag, "onBeginningOfSpeech");

    }

    /*
     * (non-Javadoc)
     * 
     * @see android.speech.RecognitionListener#onBufferReceived(byte[])
     */
    @Override
    public void onBufferReceived(byte[] arg0) {
        // Log.e(tag, "onBufferReceived");
    }

    /*
     * (non-Javadoc)
     * 
     * @see android.speech.RecognitionListener#onEndOfSpeech()
     */
    @Override
    public void onEndOfSpeech() {
        progressDialog.dismiss();

        Log.e(tag, "onEndOfSpeech");

    }

    /*
     * (non-Javadoc)
     * 
     * @see android.speech.RecognitionListener#onError(int)
     */
    @Override
    public void onError(int error) {

        String mError = "";
        switch (error) {
        case SpeechRecognizer.ERROR_NETWORK_TIMEOUT:
            mError = " network timeout";
            break;
        case SpeechRecognizer.ERROR_NETWORK:
            mError = " network";
            return;
        case SpeechRecognizer.ERROR_AUDIO:
            mError = " audio";
            break;
        case SpeechRecognizer.ERROR_SERVER:
            mError = " server";
            break;
        case SpeechRecognizer.ERROR_CLIENT:
            mError = " client";
            break;
        case SpeechRecognizer.ERROR_SPEECH_TIMEOUT:
            mError = " speech time out";
            break;
        case SpeechRecognizer.ERROR_NO_MATCH:
            mError = " no match";
            break;
        case SpeechRecognizer.ERROR_RECOGNIZER_BUSY:
            mError = " recogniser busy";
            break;
        case SpeechRecognizer.ERROR_INSUFFICIENT_PERMISSIONS:
            mError = " insufficient permissions";
            break;

        }
        textView.setText(mError);
        Log.e(tag, "onError " + mError);

    }

    /*
     * (non-Javadoc)
     * 
     * @see android.speech.RecognitionListener#onEvent(int, android.os.Bundle)
     */
    @Override
    public void onEvent(int eventType, Bundle params) {
        Log.e(tag, "onEvent");

    }

    /*
     *
     */
    @Override
    public void onPartialResults(Bundle partialResults) {
        Log.e(tag, "onPartialResults");

    }

    /*
     * Called when the endpointer is ready for the user to start speaking.
     */
    @Override
    public void onReadyForSpeech(Bundle params) {
        Log.e(tag, "onReadyForSpeech");
    }

    /*
     * Called when recognition results are ready.
     */
    @Override
    public void onResults(Bundle results) {
        Log.e(tag, "onResults");
        ArrayList<String> matches = results
                .getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
        textView.setText("" + matches.get(0));
        Log.e(tag, "onResults" + matches.toString());

    }

    /*
     * The sound level in the audio stream has changed. There is no guarantee
     * that this method will be called.
     */
    @Override
    public void onRmsChanged(float rmsdB) {
        // Log.e(tag, "onRmsChanged");
    }

}

如果你需要布局......

<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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    >

    <TextView
        android:id="@+id/text1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="28dp"
        android:text="Speak Results" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:text="3 Sec delay Silence before auto stop, 5 Sec Minimum length of recording  " />

    <Button
        android:id="@+id/button1"
        style="?android:attr/buttonStyleSmall"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/text1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="42dp"
        android:text="Speak" />

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/textView1"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="93dp"
        android:text="Stop Speak" />

</RelativeLayout>

礼貌: https://github.com/Mohammed-khurram-Ahmed/SpeechToTextWithoutDefaultUI