android 语音识别技术

偶然在网上看到。于是照着网上的例子写了一个例子。很简单，就是实现语音识别。后来的TTS没有做。

直接贴代码

/**
 * 语音识别
 * 
 * @author sy
 * 
 */
public class SpeakToActivity extends Activity
{
    /** Called when the activity is first created. */
    private Button mSpeakButton;

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        mSpeakButton = (Button) findViewById(R.id.openSpeak);
        mSpeakButton.setOnClickListener(new ButtonOnClick());
    }

    /**
     * button点击事件
     * 
     * @author sy
     * 
     */
    class ButtonOnClick implements OnClickListener
    {

        @Override
        public void onClick(View v)
        {
            try
            {
                // TODO Auto-generated method stub
                Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH); // 使用Intent开始语音识别
                // //语言模式和自由模式的语音识别
                intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_WEB_SEARCH);
                intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "开始语音");// 只是提示语音开始
                startActivityForResult(intent, 10);// 对应onActivityResult方法中得requestCode
            } catch (Exception e)
            {
                e.printStackTrace();
                // 如果找不到语音设备则提示
                Toast.makeText(SpeakToActivity.this, "找不到语音设备", Toast.LENGTH_LONG).show();
            }

        }

    }

    /**
     * activity回调函数，和startActivityForResult对应
     * 
     * @author sy
     */
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data)
    {
        // TODO Auto-generated method stub
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 10 && resultCode == RESULT_OK)
        {
            ArrayList<String> results = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS); // 获取结果集
            String resultString = "";
            // 如果使用这段注释的代码，google则会返回5个类似于你发音的词
            // for (int i = 0; i < results.size(); i++)
            // {
            // resultString+=results.get(i);
            // }
            resultString += results.get(0);// 我默认选择了第一个
            Toast.makeText(SpeakToActivity.this, resultString, Toast.LENGTH_LONG).show();
        }
    }

}