Android语音识别技术详解及实例代码

    public class RecognizerIntentActivity extends Activity {    private Button btnReconizer;   private static final int VOICE_RECOGNITION_REQUEST_CODE = 1234;   @Override   protected void onCreate(Bundle savedInstanceState) {     // TODO Auto-generated method stub     super.onCreate(savedInstanceState);     setContentView(R.layout.reconizer);          btnReconizer=(Button) this.findViewById(R.id.btnRecognizer);     btnReconizer.setOnClickListener(new OnClickListener() {              @Override       public void onClick(View v) {         // TODO Auto-generated method stub         try{         //通过Intent传递语音识别的模式，开启语音         Intent intent=new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);         //语言模式和自由模式的语音识别         intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);         //提示语音开始         intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "开始语音");         //开始语音识别         startActivityForResult(intent, VOICE_RECOGNITION_REQUEST_CODE);         }catch (Exception e) {           // TODO: handle exception           e.printStackTrace();           Toast.makeText(getApplicationContext(), "找不到语音设备", 1).show();         }       }     });        }      @Override   protected void onActivityResult(int requestCode, int resultCode, Intent data) {     // TODO Auto-generated method stub     //回调获取从谷歌得到的数据      if(requestCode==VOICE_RECOGNITION_REQUEST_CODE && resultCode==RESULT_OK){       //取得语音的字符       ArrayList<String> results=data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);              String resultString="";       for(int i=0;i<results.size();i++){         resultString+=results.get(i);       }       Toast.makeText(this, resultString, 1).show();     }     super.onActivityResult(requestCode, resultCode, data);   } }