在android中语音输入来填充编辑文本？

Question

我正在研究 android 中的语音输入。我使用了来自的样本

http://developer.android.com /resources/samples/ApiDemos/src/com/example/android/apis/app/VoiceRecognition.html

在 Xperia X10 上进行测试时，我收到了“立即讲话”对话框，但是在我输入一些声音之前它会关闭。我正在尝试实现语音搜索，例如如果语音输入是詹姆斯·邦德，那么我想在名字编辑文本中填充詹姆斯，在姓氏编辑文本中填充邦德。这将在数​​据库中搜索该名称。但在尝试使用 API 演示示例时，它不起作用。也许我错过了一些东西。有人会发布任何语音输入示例而不是 ApiDemos 示例吗？

提前致谢。

Answer 1

您可以使用以下代码进行语音识别。有关语音识别的完整教程，点击此处。

import android.app.Activity;
import android.os.Bundle;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.speech.RecognizerIntent;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import java.util.ArrayList;
import java.util.List;

/**
* A very simple application to handle Voice Recognition intents
* and display the results
*/
public class VoiceRecognitionDemo extends Activity
{

private static final int REQUEST_CODE = 1234;
private ListView wordsList;

/**
 * Called with the activity is first created.
 */
@Override
public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.voice_recog);

    Button speakButton = (Button) findViewById(R.id.speakButton);

    wordsList = (ListView) findViewById(R.id.list);

    // Disable button if no recognition service is present
    PackageManager pm = getPackageManager();
    List<ResolveInfo> activities = pm.queryIntentActivities(
            new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH), 0);
    if (activities.size() == 0)
    {
        speakButton.setEnabled(false);
        speakButton.setText("Recognizer not present");
    }
}

/**
 * Handle the action of the button being clicked
 */
public void speakButtonClicked(View v)
{
    startVoiceRecognitionActivity();
}

/**
 * Fire an intent to start the voice recognition activity.
 */
private void startVoiceRecognitionActivity()
{
    Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
    intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
            RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
    intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Voice recognition Demo...");
    startActivityForResult(intent, REQUEST_CODE);
}

/**
 * Handle the results from the voice recognition activity.
 */
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
    if (requestCode == REQUEST_CODE && resultCode == RESULT_OK)
    {
        // Populate the wordsList with the String values the recognition engine thought it heard
        ArrayList<String> matches = data.getStringArrayListExtra(
                RecognizerIntent.EXTRA_RESULTS);
        wordsList.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,
                matches));
    }
    super.onActivityResult(requestCode, resultCode, data);
}
}