Android 实现语音识别

苹果的iphone 有语音识别用的是Google 的技术，做为Google 力推的Android 自然会将其核心技术往Android 系统里面植入，并结合google 的云端技术将其发扬光大。
所以Google Voice Recognition在Android 的实现就变得极其轻松。

语音识别，借助于云端技术可以识别用户的语音输入，包括语音控制等技术，下面我们将利用Google 提供的Api 实现这一功能。
功能点为：通过用户语音将用户输入的语音识别出来，并打印在列表上。
功能界面如下：

Android_speakActivity

package src.speek.com;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;import java.util.ArrayList;import java.util.List;/** * Sample code that invokes the speech recognition intent API. */public class Android_speakActivity extends Activity implements OnClickListener{private static final int VOICE_RECOGNITION_REQUEST_CODE = 1234;private ListView mList;/** * Called with the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);// Inflate our UI from its XML layout description.setContentView(R.layout.main);// Get display items for later interactionButton speakButton = (Button) findViewById(R.id.button1);mList = (ListView) findViewById(R.id.list1);// Check to see if a recognition activity is presentPackageManager 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.button1){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. */@Overrideprotected 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 heardArrayList<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);}}

main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <Button        android:id="@+id/button1"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="点我说话" />    <ListView        android:id="@+id/list1"        android:layout_width="fill_parent"        android:layout_height="wrap_content" /></LinearLayout>

Android 实现语音识别 DEMO下载地址：http://download.csdn.net/detail/tt5267621/3755277

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