Android 简单的智能机器人聊天软件

聊天接口是网上找的，我用的是图灵机器人，注册后拿到key值，然后，就可以动手下代码。

个人认为，聊天机器人最大的难点有三个

1、布局，要实现微信那样的聊天布局确实要花费一些功夫。

2、解析数据，楼主用的是谷歌的Gson解析，解析出数据以后，重要的是判断该数据是属于文字对话，新闻，菜谱，抑或是列车。

3、布局之间的转换，由于涉及到自己和机器人，所以listview里面至少要有三个布局（一个是自己，另一个是机器人，另一个当然是聊天界面啦），重写BaseAdapter方法，让布局在两个布局之间进行转换。

楼主的布局
主界面XML代码

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="match_parent"
        android:layout_height="20pt"
        android:background="@drawable/title_bar"
        android:gravity="center"
        android:text="图灵机器人"
        android:textColor="#FFFFFF"
        android:textSize="10pt" />

    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="0pt"
        android:layout_weight="1"
        android:divider="#00000000"
        android:fastScrollEnabled="true"
        android:listSelector="@android:color/transparent"
        android:scrollbarStyle="insideInset"
        android:transcriptMode="normal" >
    </ListView>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="25pt"
        android:background="@drawable/bottom_bar"
        android:gravity="center"
        android:orientation="horizontal" >

        <EditText
            android:id="@+id/editText"
            android:layout_width="fill_parent"
            android:layout_height="17pt"
            android:layout_marginLeft="3pt"
            android:layout_weight="1"
            android:background="@drawable/editext"
            android:paddingLeft="1pt"
            android:paddingRight="1pt" />

        <Button
            android:id="@+id/button"
            android:layout_width="32pt"
            android:layout_height="20pt"
            android:layout_marginLeft="3pt"
            android:layout_marginRight="2pt"
            android:background="@drawable/button"
            android:text="确认" />
    </LinearLayout>

</LinearLayout>

聊天对话框代码

<?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:orientation="vertical" >

    <LinearLayout
        android:id="@+id/ly01"
        android:layout_width="match_parent"
        android:layout_height="10pt"
        android:gravity="center" >

        <TextView
            android:id="@+id/time"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_gravity="center"
            android:text="2015-9-18 21:07:56" />
    </LinearLayout>
    
    <ImageButton
        android:id="@+id/immi"
        android:layout_width="25pt"
        android:layout_height="25pt"
        android:layout_alignParentRight="true"
        android:layout_below="@+id/ly01"
        android:background="@drawable/ic_launcher" />

    <TextView
        android:id="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toLeftOf="@+id/immi"
        android:layout_alignTop="@+id/immi"
        android:layout_marginTop="5pt"
        android:textSize="17sp"
        android:maxEms="10"
        android:singleLine="false"
        android:background="@drawable/chatto_bg_normal"
        android:text="窗前明月光，疑是地上霜。" />

</RelativeLayout>

效果图：

解析数据：

HttpURLConnection连接

package http;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

public class HttpUtils {
 public static String getJsonContent(String url) {
  String result = "";
  URL url2;
  InputStream is;
  InputStreamReader isr;
  BufferedReader br;
  try {
   url2 = new URL(url);
   HttpURLConnection connection = (HttpURLConnection) url2
     .openConnection();
   is = connection.getInputStream();
   isr = new InputStreamReader(is, "UTF-8");
   String line = "";
   br = new BufferedReader(isr);

   while ((line = br.readLine()) != null) {
    result += line;
   }
   br.close();
  } catch (MalformedURLException e) {
   e.printStackTrace();
  } catch (IOException e) {
   e.printStackTrace();
  }
  
  if (result == "") {//进行判空操作，如果没联网，会给<span style="font-family: Arial, Helvetica, sans-serif;">result重新赋值而不至于是空。</span>
   result = "{\"code\":100000,\"text\":\"亲！服务器到月球了！\"}";
  }
  return result;
 }
}

解析数据

楼主是直接在解析类里面定义了解析函数。

Talk是定义的数据存储类。

 public static Talk getTalk(String json) {
  Gson gson = new Gson();
  Talk talk = gson.fromJson(json, Talk.class);
  return talk;
 }

自己的Talk类，所有的聊天信息全都用Talk类封装好存到list里面中，（还没学到数据库，汗，只能用list来代替了）

package com.rebot;

import java.util.List;

import com.google.gson.Gson;

public class Talk {

 private int type = 0; // 0为机器人，1为自己
 private int code; // 返回类型。 人默认为0
 private String text; // 返回文字
 private String time;// 发送时间
 List<More> list; // 返回的list

 public Talk(int type, int code, String text, String time) {
  this.code = code;
  this.type = type;
  this.text = text;
  this.time = time;
 }

 public int getType() {
  return type;
 }

 public void setType(int type) {
  this.type = type;
 }

 public int getCode() {
  return code;
 }

 public void setCode(int code) {
  this.code = code;
 }

 public String getText() {
  return text;
 }

 public void setText(String text) {
  this.text = text;
 }

 public String getTime() {
  return time;
 }

 public void setTime(String time) {
  this.time = time;
 }

 public List<More> getList() {
  return list;
 }

 public void setList(List<More> list) {
  this.list = list;
 }

 public String toString() {
  return "type=" + type + ", code=" + code + ", text=" + text + "\n";
 }

 public static Talk getTalk(String json) {
  Gson gson = new Gson();
  Talk talk = gson.fromJson(json, Talk.class);
  return talk;
 }
}

楼主为了省事，把各种类型的数据全定义在了一个类里面，More类

代码如下

package com.rebot;

public class More {
 // -------------列车------------------
 private String trainnum; // 车次
 private String start; // 起始站
 private String terminal; // 到达站
 private String starttime; // 开车时间
 private String endtime; // 到达时间

 // --------公用-------
 private String detailurl; // 详情地址
 private String icon; // 图标地址

 // -------------------

 public String getTrainnum() {
  return trainnum;
 }

 public void setTrainnum(String trainnum) {
  this.trainnum = trainnum;
 }

 public String getStart() {
  return start;
 }

 public void setStart(String start) {
  this.start = start;
 }

 public String getTerminal() {
  return terminal;
 }

 public void setTerminal(String terminal) {
  this.terminal = terminal;
 }

 public String getStarttime() {
  return starttime;
 }

 public void setStarttime(String starttime) {
  this.starttime = starttime;
 }

 public String getEndtime() {
  return endtime;
 }

 public void setEndtime(String endtime) {
  this.endtime = endtime;
 }

 public String getDetailurl() {
  return detailurl;
 }

 public void setDetailurl(String detailurl) {
  this.detailurl = detailurl;
 }

 public String getIcon() {
  return icon;
 }

 public void setIcon(String icon) {
  this.icon = icon;
 }

 public String getTrain() {
  return "车次:" + trainnum + "\n起始站:" + start + "\n到达站:" + terminal
    + "\n开车时间:" + starttime + "\n到达时间:" + endtime + "\n详情地址:"
    + detailurl + "\n图标地址:" + icon;
 }

 // ---------------------------------------

 // ------------------新闻--------------------

 private String article;
 private String source;

 public String getArticle() {
  return article;
 }

 public void setArticle(String article) {
  this.article = article;
 }

 public String getSource() {
  return source;
 }

 public void setSource(String source) {
  this.source = source;
 }

 public String getNews() {
  return "标题：" + article + "\n来源" + source + "\n详情地址" + detailurl
    + "\n图标地址" + icon;
 }

 // ------------------菜谱----------------------
 private String name; // 名称
 private String info; // 详情

 public String getName() {
  return name;
 }

 public void setName(String name) {
  this.name = name;
 }

 public String getInfo() {
  return info;
 }

 public void setInfo(String info) {
  this.info = info;
 }

 public String getMenu() {
  return "名称:" + name + "\n详情" + info + "\n详情地址" + detailurl + "\n图标地址"
    + icon;
 }
}

主界面代码

package com.example.n.rebot02;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import http.HttpUtils;

import com.rebot.Talk;

import android.os.AsyncTask;
import android.os.Bundle;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;

public class MainActivity extends Activity {

 private ListView listView;
 private EditText editText;
 private Button button;
 private List<Talk> talks;
 private MyAsyncTask task;
 private MyAdapter adapter;

 @SuppressWarnings("serial")
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  requestWindowFeature(Window.FEATURE_NO_TITLE);
  setContentView(R.layout.main_layout);

  listView = (ListView) findViewById(R.id.listView);
  editText = (EditText) findViewById(R.id.editText);
  button = (Button) findViewById(R.id.button);
  talks = new ArrayList<Talk>() {
   {
    add(new Talk(0, 100000, "阿尼哈希哟！", printDate()));
   }
  };
  adapter = new MyAdapter(MainActivity.this, talks);

  listView.setAdapter(adapter);
//  listView.setSelection(adapter.getCount());
//  adapter.notifyDataSetChanged();

  button.setOnClickListener(new OnClickListener() {

   public void onClick(View v) {

    String mi = editText.getText().toString();
    // -----------添加自己--------------
    Talk talk = new Talk(1, 100000, mi, printDate());
    talks.add(talk);

    // ------------输入框设置为空---------------
    editText.setText("");
    System.out.println("==============talk:" + talk);

    // -----------启动AsyncTask---------
    String APIKEY = "d0c05c50d03d541fc1571908b453452f";
    String INFO = null;
    try {
     INFO = URLEncoder.encode(mi, "utf-8");
    } catch (UnsupportedEncodingException e) {
     e.printStackTrace();
    }
    String getURL = "http://www.tuling123.com/openapi/api?key="
      + APIKEY + "&info=" + INFO;

    // -------------------------------

    adapter.notifyDataSetChanged();
    listView.smoothScrollToPosition(listView.getCount() - 1);
    // -------------------------------
    task = new MyAsyncTask();
    task.execute(getURL);
   }
  });
 }

 class MyAsyncTask extends AsyncTask<String, Void, List<Talk>> {

  @Override
  protected List<Talk> doInBackground(String... params) {

   // ---------------解析数据------------------
   String json = HttpUtils.getJsonContent(params[0]);
   Talk talk = Talk.getTalk(json);
   // ----------------添加机器人----------------
   System.out.println("------------talk" + talk);
   talk.setType(0);
   talk.setTime(printDate());
   talks.add(talk);
   return talks;
  }

  protected void onPostExecute(List<Talk> result) {
   super.onPostExecute(result);
   adapter.notifyDataSetChanged();
   listView.smoothScrollToPosition(listView.getCount() - 1);
  }
 }

 @SuppressLint("SimpleDateFormat")
 public static String printDate() {
  DateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  return format.format(new Date());
 }
}<strong>
</strong>

重新定义BaseAdapter

package com.example.n.rebot02;

import java.util.List;

import com.rebot.Talk;

import android.content.Context;
import android.text.method.LinkMovementMethod;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;

public class MyAdapter extends BaseAdapter {

 private Context context;
 private List<Talk> talk;

 public MyAdapter(Context context, List<Talk> talk) {
  this.context = context;
  this.talk = talk;
 }

 public int getCount() {
  return talk.size();
 }

 public Object getItem(int position) {
  return talk.get(position);
 }

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

 public View getView(int position, View convertView, ViewGroup parent) {
  Talk talk1 = talk.get(position);
  View view = null;


  if (talk1.getType() == 1) {
   view = LayoutInflater.from(context).inflate(R.layout.mi_item, null);
  } else {
   view = LayoutInflater.from(context).inflate(R.layout.reboot_item,
     null);
  }

  TextView textView = (TextView) view.findViewById(R.id.text);
  TextView textView2 = (TextView) view.findViewById(R.id.time);
  
  switch (talk1.getCode()) {
  case 100000:<span style="white-space:pre"> </span>//判断返回类型，<span style="font-family: Arial, Helvetica, sans-serif;">100000为文字类聊天，</span><span style="font-family: Arial, Helvetica, sans-serif;">305000为列车</span><span style="font-family: Arial, Helvetica, sans-serif;">
</span>
   textView.setText(talk1.getText());
   break;
  case 40002:
   textView.setText(talk1.getText());
   break;
  case 305000:
   textView.setText(talk1.getText() + "\n"
     + talk1.getList().get(0).getTrain());
   break;
  case 302000:
   textView.setText(talk1.getText() + "\n"
     + talk1.getList().get(0).getNews());
   textView.setMovementMethod(LinkMovementMethod.getInstance());
   
   break;
  case 308000:
   textView.setText(talk1.getText() + "\n"
     + talk1.getList().get(0).getMenu());
   
   Log.i("main", talk1.getText() + "\n"
     + talk1.getList().get(0).getMenu());
   
   break;
  default:
   break;
  }
  textView2.setText(talk1.getTime());
  return view;
 }
}<strong>
</strong>

完成效果图

心得:

别忘了开网络权限！

（重要的事情说三遍）

ListView显示最后一行：

listView.smoothScrollToPosition(listView.getCount() - 1);

实时刷新ListView

adapter.notifyDataSetChanged();

去掉丑陋的标题头

requestWindowFeature(Window.FEATURE_NO_TITLE);

（这句话一定要写在super.onCreate(savedInstanceState);的下一行！）

第一次写博客，不足之处尚多，以后慢慢改进。