Android 语音识别+语音搜索源码 Voice Search

http://blog.csdn.net/u014051380/article/details/21114389

1、判断是否已安装语音搜索功能

[java] view plaincopyprint?

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();
}
}
}

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();
}
}
}

2、assets提供语音搜索apk安装

[java] view plaincopyprint?

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();
}
}

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();
}
}

3、加入Android读写文件权限

[java] view plaincopyprint?

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

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