android上实现语音识别,基于google的语音识别

package com.ifeisu.test.voice; import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.content.Intent; import android.content.pm.PackageManager; import android.content.pm.ResolveInfo; import android.os.Bundle; import android.speech.RecognizerIntent; import android.view.View; import android.view.View.OnClickListener; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.ListView; /*** * 语音识别demo,在使用此demo之前需要确认手机或者模拟器上安装了google的语音搜索工具 Voice_Search_2.1.4.apk或者更高版本 * * @author guoxinzz@163.com * @website http://www.ifeisu.com * */ public class VoiceRecognition 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); setContentView(R.layout.main); Button speakButton = (Button) findViewById(R.id.btn_speak); mList = (ListView) findViewById(R.id.list); 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"); } } public void onClick(View v) { if (v.getId() == R.id.btn_speak) { startVoiceRecognitionActivity(); } } private void startVoiceRecognitionActivity() { // 通过Intent传递语音识别的模式 Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH); // 语言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, "请说出需要打开的网站名字."); // 开始执行我们的Intent、语音识别 startActivityForResult(intent, VOICE_RECOGNITION_REQUEST_CODE); } // 当语音结束时的回调函数onActivityResult @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == VOICE_RECOGNITION_REQUEST_CODE && resultCode == RESULT_OK) { // 取得语音的字符 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); } }