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【Java】 Android 语音识别接口

作者:春秀 / 发布于2015/1/12/ 515

VoiceRecognition.java


	package com.VoiceRecognition;
	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;

	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);

	 // 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");
	 }
	 }

	 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, "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
	 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);
	 }
	}

	

	

	main.xml

	<?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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　Android　　　　语音识别　

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