Android 语音识别接口

来源：互联网发布：自动打码软件编辑：程序博客网时间：2024/05/18 00:13

标签：Android SDK

[1].[代码] VoiceRecognition.java 跳至 [1] [2]

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packagecom.VoiceRecognition;
importAndroid.app.Activity;  
importAndroid.content.Intent;  
importAndroid.content.pm.PackageManager;  
 
importAndroid.content.pm.ResolveInfo;  
importAndroid.os.Bundle;  
importAndroid.speech.RecognizerIntent;  
importAndroid.view.View;  
importAndroid.view.View.OnClickListener;  
importAndroid.widget.ArrayAdapter;  
importAndroid.widget.Button;  
importAndroid.widget.ListView;  
importjava.util.ArrayList;  
importjava.util.List;  
  
publicclass VoiceRecognition extendsActivity implementsOnClickListener {  
       
    privatestatic final int VOICE_RECOGNITION_REQUEST_CODE = 1234; 
       
    privateListView mList;  
  
    /** 
     * Called with the activity is first created.  
     */ 
    @Override 
    publicvoid onCreate(Bundle savedInstanceState)   
    { 
        super.onCreate(savedInstanceState); 
  
        setContentView(R.layout.main); 
  
        Button speakButton = (Button) findViewById(R.id.btn_speak);  
           
        mList = (ListView) findViewById(R.id.list);  
  
        // Check to see if a recognition activity is present  
        PackageManager pm = getPackageManager();  
        List<ResolveInfo> activities = pm.queryIntentActivities(newIntent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH), 0); 
        if(activities.size() != 0) 
        { 
            speakButton.setOnClickListener(this); 
        } 
        else 
        { 
            speakButton.setEnabled(false); 
            speakButton.setText("Recognizer not present"); 
        } 
    } 
  
  
    publicvoid onClick(View v)  
    { 
        if(v.getId() == R.id.btn_speak)  
        { 
            startVoiceRecognitionActivity(); 
        } 
    } 
  
    privatevoid startVoiceRecognitionActivity()  
    { 
        //通过Intent传递语音识别的模式 
        Intent intent = newIntent(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,"Speech recognition demo"); 
        //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 
    protectedvoid onActivityResult(intrequestCode, intresultCode, 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(newArrayAdapter<String>(this, Android.R.layout.simple_list_item_1, matches));  
        } 
  
        super.onActivityResult(requestCode, resultCode, data);  
    } 
}

[2].[代码] main.xml 跳至 [1] [2]

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<?xml version="1.0"encoding="utf-8"?>
<LinearLayout xmlns:Android="http://schemas.android.com/apk/res/android"
    Android:orientation="vertical"
    Android:layout_width="fill_parent"
    Android:layout_height="fill_parent"
    >
<Button
 Android:id="@+id/btn_speak"
    Android:layout_width="fill_parent"
    Android:layout_height="wrap_content"
    />
    <ListView
    Android:id="@+id/list"
    Android:layout_width="fill_parent"
    Android:layout_height="wrap_content"
    />
</LinearLayout>

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