android 项目学习随笔二十一（IM、语音识别、机器人、统计、扫描二维码、条形码）

2023-08-14 14:51:58

语音识别：科大讯飞语音云 http://www.xfyun.cn/

语音机器人模拟

public class TalkBean {

    public String text;

    public boolean isAsk;// true表示提问,false是回答

    public int imageId = -1;// 回答的图片id

    public TalkBean(String text, boolean isAsk, int imageId) {

        this.text = text;

        this.isAsk = isAsk;

        this.imageId = imageId;

    }

}

TalkBean

import java.util.ArrayList;

/**

 * 语音对象封装

 *

 */

public class VoiceBean {

    public ArrayList<WSBean> ws;

    public class WSBean {

        public ArrayList<CWBean> cw;

    }

    public class CWBean {

        public String w;

    }

}

VoiceBean

import java.util.ArrayList;

import java.util.Random;

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.itheima.mysiri66.VoiceBean.WSBean;

import com.umeng.analytics.MobclickAgent;

public class MainActivity  extends Activity {

    private ListView lvList;

    StringBuffer mBuffer = new StringBuffer();

    private String[] mAnswers = new String[] { "这张怎么样?", "约吗?", "老地方见!",

            "不要再要美女了", "最后一张了" };

    private int[] mAnswerPics = new int[] { R.drawable.p1, R.drawable.p2,

            R.drawable.p3, R.drawable.p4 };

    private ArrayList<TalkBean> mTalkList = new ArrayList<TalkBean>();// 会话集合

    private MyAdapter mAdapter;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        // 初始化语音识别

        SpeechUtility.createUtility(this, SpeechConstant.APPID + "=55cfe490");

        setContentView(R.layout.activity_main);

        lvList = (ListView) findViewById(R.id.lv_list);

        mAdapter = new MyAdapter();

        lvList.setAdapter(mAdapter);

    }

    // 开始识别

    public void startRecognize(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");

        // 3.设置回调接口

        mDialog.setListener(new RecognizerDialogListener() {

            @Override

            public void onResult(RecognizerResult results, boolean isLast) {

                System.out.println("isLast:" + isLast);

                String parseResult = parseData(results.getResultString());

                mBuffer.append(parseResult);

                if (isLast) {

                    // 会话已经结束

                    String finalResult = mBuffer.toString();

                    System.out.println("最终结果:" + finalResult);

                    mBuffer = new StringBuffer();// 此方法相当于清空buffer

                    // 提问对象

                    TalkBean askBean = new TalkBean(finalResult, true, -1);

                    mTalkList.add(askBean);

                    Random random = new Random();

                    // 回答对象

                    String answer = "没听清";

                    int imageId = -1;

                    if (finalResult.contains("你好")) {

                        answer = "你好呀!";

                    } else if (finalResult.contains("你是谁")) {

                        answer = "我是你的小助手!";

                    } else if (finalResult.contains("天王盖地虎")) {

                        answer = "小鸡炖蘑菇";

                        imageId = R.drawable.m;

                    } else if (finalResult.contains("美女")) {

                        // 取随机内容和随机图片

                        int strId = random.nextInt(mAnswers.length);

                        answer = mAnswers[strId];

                        imageId = mAnswerPics[random

                                .nextInt(mAnswerPics.length)];

                    }

                    // 回答对象

                    TalkBean answerBean = new TalkBean(answer, false, imageId);

                    mTalkList.add(answerBean);

                    mAdapter.notifyDataSetChanged();

                    lvList.setSelection(mTalkList.size() - 1);

                    startSpeak(answer);

                }

            }

            @Override

            public void onError(SpeechError arg0) {

            }

        });

        // 4.显示dialog，接收语音输入

        mDialog.show();

    }

    /**

     * 解析语音json

     *

     * @param resultString

     * @return

     */

    protected String parseData(String resultString) {

        Gson gson = new Gson();

        VoiceBean voiceBean = gson.fromJson(resultString, VoiceBean.class);

        StringBuffer sb = new StringBuffer();

        ArrayList<WSBean> ws = voiceBean.ws;

        for (WSBean wsBean : ws) {

            String word = wsBean.cw.get(0).w;

            sb.append(word);

        }

        return sb.toString();

    }

    // 语音合成

    public void startSpeak(String text) {

        // 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

        // mTts.setParameter(SpeechConstant.TTS_AUDIO_PATH,

        // "./sdcard/iflytek.pcm");

        // 3.开始合成

        mTts.startSpeaking(text, null);

    }

    class MyAdapter extends BaseAdapter {

        @Override

        public int getCount() {

            return mTalkList.size();

        }

        @Override

        public TalkBean getItem(int position) {

            return mTalkList.get(position);

        }

        @Override

        public long getItemId(int position) {

            return position;

        }

        @Override

        public View getView(int position, View convertView, ViewGroup parent) {

            ViewHolder holder = null;

            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) {

                holder.tvAsk.setVisibility(View.VISIBLE);

                holder.llAnswer.setVisibility(View.GONE);

                holder.tvAsk.setText(item.text);

            } else {

                holder.tvAsk.setVisibility(View.GONE);

                holder.llAnswer.setVisibility(View.VISIBLE);

                holder.tvAnswer.setText(item.text);

                if (item.imageId > 0) {// 回答内容有图片

                    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;

    }

    // 友盟统计

    public void onResume() {

        super.onResume();

        MobclickAgent.onResume(this);

    }

    // 友盟统计

    public void onPause() {

        super.onPause();

        MobclickAgent.onPause(this);

    }

}

MainActivity

<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="startRecognize"

            android:text="点击开始语音识别" />

    </LinearLayout>

</LinearLayout>

activity_main

<?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:padding="3dp"

        android:textColor="#000"

        android:textSize="18sp" />

    <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:padding="3dp" >

        <TextView

            android:id="@+id/tv_answer"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:gravity="center"

            android:textColor="#000"

            android:textSize="18sp" />

        <ImageView

            android:id="@+id/iv_pic"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content" />

    </LinearLayout>

</RelativeLayout>

list_item

友盟统计：http://www.umeng.com/

二维码、条形码扫描：https://github.com/ 搜索 zxing

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