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. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		btn_voice = (Button) findViewById(R.id.btn_voice);

		btn_voice.setOnClickListener(new

		OnClickListener() {
			@Override
			public 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
	 */
	@Override
	protected 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);
// }
// }

 

评论

1 楼 dkmengbin 2013-09-10  

报异常怎么回事不说清楚！！！真....