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Android 语音识别+语音搜索源码 Voice Search

2016-03-16 15:44 459 查看

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1、判断是否已安装语音搜索功能

[java] view
plaincopy

package com.voice.search;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.util.List;

import android.app.Activity;

import android.app.AlertDialog;

import android.content.Context;

import android.content.DialogInterface;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.content.pm.ResolveInfo;

import android.net.Uri;

import android.os.Environment;

import android.speech.RecognizerIntent;

import android.widget.Toast;

public class VoiceSearchUtil {

private static Context context;

private static final int VOICE_RECOGNITION_REQUEST_CODE = 1;

public static void getVoiceSearch(Context c) {

context = c;

PackageManager pm = context.getPackageManager();

List<ResolveInfo> activities = pm

.queryIntentActivities(new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH), 0);

if (activities.size() != 0) {

/* 设备存在 */

voiceSearch();

} else {

/* 没有设备请点击安装按钮进行安装呢 */

if (copyApkFromAssets(context, "google_voice_search.apk", Environment.getExternalStorageDirectory()

.getAbsolutePath() + "/google_voice_search.apk")) {

new AlertDialog.Builder(context).setMessage("检测到未安装语音搜索设备，是否安装？")

.setPositiveButton("安装", new android.content.DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

Intent intent = new Intent(Intent.ACTION_VIEW);

intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

intent.setDataAndType(

Uri.parse("file://"

+ Environment.getExternalStorageDirectory().getAbsolutePath()

+ "/google_voice_search.apk"),

"application/vnd.android.package-archive");

context.startActivity(intent);

}

}).setNegativeButton("取消", null).show();

}

}

}

/**

* 安装语音搜索功能,写入数据

*

* @param context

* 上下文

* @param fileName

* 文件名称

* @param path

* 文件路径

* @return 所需文件

*/

public static boolean copyApkFromAssets(Context context, String fileName, String path) {

boolean copyIsFinish = false;

try {

InputStream is = context.getAssets().open(fileName);

File file = new File(path);

file.createNewFile();

FileOutputStream fos = new FileOutputStream(file);

byte[] temp = new byte[1024];

int i = 0;

while ((i = is.read(temp)) > 0) {

fos.write(temp, 0, i);

}

fos.close();

is.close();

copyIsFinish = true;

} catch (IOException e) {

e.printStackTrace();

}

return copyIsFinish;

}

// 语音搜索

private static void voiceSearch() {

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);

// 语言模式和自由模式的语音识别

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");

// 开始语音识别

((Activity) context).startActivityForResult(intent, VOICE_RECOGNITION_REQUEST_CODE);

} catch (Exception e) {

e.printStackTrace();

Toast.makeText(context, "找不到语音设备", Toast.LENGTH_LONG).show();

}

}

}

[java] view
plain copy

package com.voice.search;

import java.util.ArrayList;

import android.os.Bundle;

import android.speech.RecognizerIntent;

import android.view.View;

import android.widget.Toast;

import android.app.Activity;

import android.app.AlertDialog;

import android.app.Dialog;

import android.content.Context;

import android.content.DialogInterface;

import android.content.Intent;

public class MainActivity extends Activity {

private static final int VOICE_RECOGNITION_REQUEST_CODE = 1;

private String[] str;

private Context context;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

context = this;

}

public void onClick(View v) {

switch (v.getId()) {

case R.id.search_iv:

VoiceSearchUtil.getVoiceSearch(context);

break;

}

}

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

// 回调获取从谷歌得到的数据

if (requestCode == VOICE_RECOGNITION_REQUEST_CODE && resultCode == RESULT_OK) {

// 取得语音的字符

ArrayList<String> results = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);

// 循环所有结果存入数组

str = new String[results.size()];

for (int i = 0; i < results.size(); i++) { // 循环所有结果

str[i] = results.get(i);

}

// Dialog显示

getSearchDialog();

// 这里只获取第一条数据

Toast.makeText(this, results.get(0), Toast.LENGTH_LONG).show();

}

super.onActivityResult(requestCode, resultCode, data);

}

/***

* 搜索后dialog显示结果

*/

private void getSearchDialog() {

Dialog dialog = new AlertDialog.Builder(this).setTitle("你是不是想找：").setIcon(R.drawable.ic_launcher)

.setItems(str, new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int which) {

Toast.makeText(MainActivity.this, str[which], Toast.LENGTH_SHORT).show();

}

}).setNegativeButton("取消", null).create();

dialog.show();

}

}

[java] view
plain copy

<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

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