android 语音识别

最新推荐文章于 2021-05-27 02:45:28 发布

linchunda

最新推荐文章于 2021-05-27 02:45:28 发布

阅读量1.1k

点赞数

CC 4.0 BY-SA版权

分类专栏： android 文章标签：语音识别 android

本文链接：https://blog.youkuaiyun.com/seeol/article/details/18183455

android 专栏收录该内容

21 篇文章

订阅专栏

本文详细介绍了在Android平台上实现语音识别的过程，包括设置权限、初始化识别器、处理识别结果等关键步骤，同时探讨了语音识别在移动应用中的应用场景和挑战。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

package com.seeol.speech;

import java.util.ArrayList;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.view.Menu;
import android.widget.EditText;
import android.widget.Toast;

/**
 * 语音识别
 * @author linchunda
 *
 */
public class MainActivity extends Activity {
	private final static int REQUEST_RECOGNIZE = 100;

	private EditText edit_edittext;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		edit_edittext = (EditText) findViewById(R.id.edit_edittext);

		Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
		
		//EXTRA_LANGUAGE_MODEL帮助优化语音识别器的处理结果
		//典型的语音到文本的识别应该用LANGUAGE_MODEL_FREE_FORM
		//如果较短的识别，RecognizerIntent.LANGUAGE_MODEL_WEB_SEARCH
		intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
				RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
		//EXTRA_PROMPT提示用户开始语音识别的字符串
		intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Tell me your name");

		try {
			startActivityForResult(intent, REQUEST_RECOGNIZE);
		} catch (Exception e) {
			//没有语音识别，从市场下载
			AlertDialog.Builder builder= new AlertDialog.Builder(this);
			builder.setTitle("No Available");
			builder.setMessage("There is currently no recognition application installed."
					+ "would you like to download one?");
			builder.setPositiveButton("yes", new OnClickListener() {
				
				@Override
				public void onClick(DialogInterface dialog, int which) {
					Intent marketIntent = new Intent(Intent.ACTION_VIEW);
					marketIntent.setData(Uri.parse("market://details?id=com.google.android.voicesearch"));
				}
			});
			builder.setNegativeButton("No", null);
			builder.create().show();
			
		}

	}

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		if (requestCode == REQUEST_RECOGNIZE
				&& resultCode == Activity.RESULT_OK) {
			ArrayList<String> matches = data
					.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
			StringBuffer sb = new StringBuffer();
			for (String string : matches) {
				sb.append(string);
				sb.append('\n');
			}
			edit_edittext.setText(sb.toString());

		} else {
			Toast.makeText(this, "操作取消", Toast.LENGTH_LONG).show();
		}
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

}