安卓智能语音机器人--AlphaGo？你也可以

前段时间AlphaGo大战李世乭让人工智能火了一把。本文将为大家简单的介绍下安卓平台的语音机器人。

项目文件：



代码：

MainActivity：

package com.itcast.chatrobot;

import java.util.ArrayList;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;

import com.google.gson.Gson;
import com.iflytek.cloud.RecognizerResult;
import com.iflytek.cloud.SpeechConstant;
import com.iflytek.cloud.SpeechError;
import com.iflytek.cloud.SpeechSynthesizer;
import com.iflytek.cloud.SpeechUtility;
import com.iflytek.cloud.ui.RecognizerDialog;
import com.iflytek.cloud.ui.RecognizerDialogListener;
import com.itcast.chatrobot.VoiceBean.WS;

public class MainActivity extends Activity {

private StringBuffer mBuffer;
private ListView lvList;

private ArrayList<TalkBean> mList = new ArrayList<TalkBean>();
private MyAdapter mAdapter;

private String[] mAnswers = new String[] { "约吗?", "这张怎么样?", "漂不漂亮呀?",
"一晚上500块呀!" };

private int[] mPics = new int[] { R.drawable.p1, R.drawable.p2,
R.drawable.p3, R.drawable.p4 };

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

//将“12345678”替换成您申请的 APPID，申请地址：http://www.xfyun.cn
// 请勿在“=”与 appid 之间添加任务空字符或者转义符
SpeechUtility.createUtility(this, SpeechConstant.APPID + "=568d036a");

lvList = (ListView) findViewById(R.id.lv_list);
mAdapter = new MyAdapter();
lvList.setAdapter(mAdapter);
}

/**
* 开始语音识别
* @param view
*/
public void startListen(View view) {
//1.创建RecognizerDialog对象
RecognizerDialog mDialog = new RecognizerDialog(this, null);
//2.设置accent、language等参数
mDialog.setParameter(SpeechConstant.LANGUAGE, "zh_cn");
mDialog.setParameter(SpeechConstant.ACCENT, "mandarin");
//若要将UI控件用于语义理解，必须添加以下参数设置，设置之后onResult回调返回将是语义理解
//结果
// mDialog.setParameter("asr_sch", "1");
// mDialog.setParameter("nlp_version", "2.0");

mBuffer = new StringBuffer();

//3.设置回调接口
mDialog.setListener(new RecognizerDialogListener() {

//听写结果回调接口(返回Json格式结果，用户可参见附录13.1)；
//一般情况下会通过onResults接口多次返回结果，完整的识别内容是多次结果的累加；
//关于解析Json的代码可参见Demo中JsonParser类；
//isLast等于true时会话结束。
@Override
public void onResult(RecognizerResult results, boolean isLast) {
String result = results.getResultString();
//System.out.println("识别结果:" + result);
String parseData = parseData(result);
//System.out.println("解析结果:" + parseData);
//System.out.println("isLast:" + isLast);
mBuffer.append(parseData);
if (isLast) {
//会话结束
String askContent = mBuffer.toString();
System.out.println("最终结果:" + askContent);

//初始化提问对象
TalkBean askBean = new TalkBean(askContent, -1, true);
mList.add(askBean);

//初始化回答对象
String answer = "没听清";
int imageId = -1;
if (askContent.contains("你好")) {
answer = "你好呀!";
} else if (askContent.contains("你是谁")) {
answer = "我是你的小助手!";
} else if (askContent.contains("美女")) {
//随机回答
int i = (int) (Math.random() * mAnswers.length);//0,1,2,3
answer = mAnswers[i];

int j = (int) (Math.random() * mPics.length);//0,1,2,3
imageId = mPics[j];
} else if (askContent.contains("天王盖地虎")) {
answer = "小鸡炖蘑菇";
imageId = R.drawable.m;
} else if(askContent.contains("明天天气")){
answer = "会很热的";
} else if(askContent.contains("修") && askContent.contains("空调")){
answer = "正在为您下单";
}

TalkBean answerBean = new TalkBean(answer, imageId, false);
mList.add(answerBean);

//刷新listview
mAdapter.notifyDataSetChanged();

//让listview自动显示最后一个条目
lvList.setSelection(mList.size() - 1);

startSpeak(answer);
}
}

@Override
public void onError(SpeechError arg0) {

}

});
//4.显示dialog，接收语音输入
mDialog.show();

}

/**
* 语音合成
* @param view
*/
public void startSpeak(String content) {
//1.创建 SpeechSynthesizer 对象, 第二个参数：本地合成时传 InitListener
SpeechSynthesizer mTts = SpeechSynthesizer
.createSynthesizer(this, null);
//2.合成参数设置，详见《科大讯飞MSC API手册(Android)》SpeechSynthesizer 类
//设置发音人（更多在线发音人，用户可参见 附录12.2
mTts.setParameter(SpeechConstant.VOICE_NAME, "xiaoyan"); //设置发音人
mTts.setParameter(SpeechConstant.SPEED, "50");//设置语速
mTts.setParameter(SpeechConstant.VOLUME, "80");//设置音量，范围 0~100
mTts.setParameter(SpeechConstant.ENGINE_TYPE, SpeechConstant.TYPE_CLOUD); //设置云端
//设置合成音频保存位置（可自定义保存位置），保存在“./sdcard/iflytek.pcm”
//保存在 SD 卡需要在 AndroidManifest.xml 添加写 SD 卡权限
//仅支持保存为 pcm 和 wav 格式，如果不需要保存合成音频，注释该行代码
mTts.setParameter(SpeechConstant.TTS_AUDIO_PATH, "./sdcard/iflytek.pcm");
//3.开始合成
mTts.startSpeaking(content, null);
}

/**
* 解析json
*/
protected String parseData(String json) {
//Gson google
Gson gson = new Gson();
VoiceBean voiceBean = gson.fromJson(json, VoiceBean.class);

StringBuffer sb = new StringBuffer();

ArrayList<WS> ws = voiceBean.ws;
for (WS w : ws) {
String word = w.cw.get(0).w;
sb.append(word);
}

return sb.toString();
}

class MyAdapter extends BaseAdapter {

@Override
public int getCount() {
return mList.size();
}

@Override
public TalkBean getItem(int position) {
return mList.get(position);
}

@Override
public long getItemId(int position) {
return position;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = View.inflate(getApplicationContext(),
R.layout.list_item, null);

holder = new ViewHolder();
holder.tvAsk = (TextView) convertView.findViewById(R.id.tv_ask);
holder.tvAnswer = (TextView) convertView
.findViewById(R.id.tv_answer);
holder.ivPic = (ImageView) convertView
.findViewById(R.id.iv_pic);
holder.llAnswer = (LinearLayout) convertView
.findViewById(R.id.ll_answer);

convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}

TalkBean item = getItem(position);

if (item.isAsk) {
//提问
holder.tvAsk.setVisibility(View.VISIBLE);
holder.llAnswer.setVisibility(View.GONE);

holder.tvAsk.setText(item.content);
} else {
//回答
holder.tvAsk.setVisibility(View.GONE);
holder.llAnswer.setVisibility(View.VISIBLE);

holder.tvAnswer.setText(item.content);

//图片
if (item.imageId > 0) {
holder.ivPic.setVisibility(View.VISIBLE);
holder.ivPic.setImageResource(item.imageId);
} else {
holder.ivPic.setVisibility(View.GONE);
}
}

return convertView;
}

}

static class ViewHolder {
public TextView tvAsk;

public TextView tvAnswer;
public ImageView ivPic;
public LinearLayout llAnswer;
}

}

布局：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<ListView
android:id="@+id/lv_list"
android:layout_width="match_parent"
android:divider="@null"
android:layout_height="0dp"
android:layout_weight="1" />

<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/bottom_bar"
android:gravity="center"
android:orientation="vertical" >

<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/btn_selector"
android:onClick="startListen"
android:text="点击开始语音识别" />
</LinearLayout>

</LinearLayout>

listview的item布局（对话）：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="5dp" >

<TextView
android:id="@+id/tv_ask"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:background="@drawable/asker_bubble"
android:gravity="center"
android:paddingLeft="10dp"
android:paddingRight="15dp"
android:text="提问"
android:textColor="#000"
android:textSize="16sp" />

<LinearLayout
android:id="@+id/ll_answer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/tv_ask"
android:layout_marginTop="10dp"
android:background="@drawable/answer_bubble"
android:orientation="vertical"
android:gravity="center_vertical"
android:paddingLeft="15dp"
android:paddingRight="10dp" >

<TextView
android:id="@+id/tv_answer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:gravity="center"
android:text="回答"
android:textColor="#000"
android:textSize="16sp" />

<ImageView
android:id="@+id/iv_pic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone" />
</LinearLayout>

</RelativeLayout>

TalkBean：

package com.itcast.chatrobot;

//提问/回答
public class TalkBean {

public TalkBean(String content, int imageId, boolean isAsk) {
super();
this.content = content;
this.imageId = imageId;
this.isAsk = isAsk;
}

public String content;
public int imageId;
public boolean isAsk;//是否是提问
}

voicebean：

package com.itcast.chatrobot;

import java.util.ArrayList;

public class VoiceBean {

public ArrayList<WS> ws;

public class WS {
public ArrayList<CW> cw;
}

public class CW {
public String w;
}
}

需要项目源码的可以私信我