android语音识别demo
package com.royal.voiceRecognition;import java.util.ArrayList;import android.app.Activity;import android.content.ActivityNotFoundException;import android.content.Intent;import android.os.Bundle;import android.speech.RecognizerIntent;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.Toast;/** * 语音识别示例 . 注意：使用前需要安装语音识别程序如语音搜索。 ** @author Royal **/public class VoiceRecognitionDemoActivity extends Activity {private static final int VOICE_RECOGNITION_REQUEST_CODE = 4321;private Button btn_voice = null;/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);btn_voice = (Button) findViewById(R.id.btn_voice);btn_voice.setOnClickListener(newOnClickListener() {@Overridepublic void onClick(View arg0) {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);// 语音模式和自由形式的语音识别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");// 开始执行我们的intent、语音识别startActivityForResult(intent,VOICE_RECOGNITION_REQUEST_CODE);} catch (ActivityNotFoundException e) {// 找不到语音设备装置System.out.println("找不到语音设备装置！");e.printStackTrace();Toast.makeText(VoiceRecognitionDemoActivity.this,"ActivityNotFoundException", Toast.LENGTH_LONG).show();}}});}/** * 当语音结束时的回调函数onActivityResult */@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {// 判断是否是我们执行的语音识别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 resultsString = "";for (int i = 0; i < results.size(); i++) {resultsString += results.get(i);}Toast.makeText(this, resultsString, Toast.LENGTH_LONG).show();super.onActivityResult(requestCode, resultCode, data);}}}// --------------第二种写法-------------------//// /**// * Sample code that invokes the speech recognition intent API.// */// public class VoiceRecognitionDemoActivity extends Activity implements// OnClickListener {//// private static final int VOICE_RECOGNITION_REQUEST_CODE = 1234;//// private ListView mList;//// /**// * Called with the activity is first created.// */// @Override// public void onCreate(Bundle savedInstanceState) {// super.onCreate(savedInstanceState);//// // 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_voice);//// mList = (ListView) findViewById(R.id.list);//// // 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");// }// }//// /**// * Handle the click on the start recognition button.// */// public void onClick(View v) {// if (v.getId() == R.id.btn_voice) {// startVoiceRecognitionActivity();// }// }//// /**// * Fire an intent to start the speech 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, "Speech recognition demo");// 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));// }//// super.onActivityResult(requestCode, resultCode, data);// }// }
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