Android之智能问答机器人

本文主要利用图灵机器人的接口,所做的一个简单的智能问答机器人

实现

由于发送与接收消息都是不同的listView,所以要用有两个listVeiw的布局文件

接收消息布局文件

<?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="wrap_content"
android:orientation="vertical" > <TextView
android:id="@+id/chat_from_createDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="2012-09-01 18:30:20"
style="@style/chat_date_style"
/> <LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" > <LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:orientation="vertical" > <ImageView
android:id="@+id/chat_from_icon"
android:layout_width="49dp"
android:layout_height="49dp"
android:src="@drawable/icon" /> <TextView
android:id="@+id/chat_from_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="小貅貅"
android:textSize="18sp" />
</LinearLayout> <TextView
android:id="@+id/chat_from_content"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minHeight="50dp"
android:background="@drawable/chat_from_msg"
android:text="有大吗。。。"
android:textSize="18sp"
android:textColor="#000"
android:gravity="center_vertical"
android:focusable="true"
android:clickable="true"
android:lineSpacingExtra="2dp"
/>
</LinearLayout> </LinearLayout>

发送消息布局文件

<?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="wrap_content"
android:orientation="vertical" > <TextView
android:id="@+id/chat_send_createDate"
style="@style/chat_date_style"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="2012-09-01 18:30:21" /> <RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content" > <LinearLayout
android:id="@+id/ly_chat_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_marginLeft="10dp"
android:orientation="vertical" > <ImageView
android:id="@+id/chat_send_icon"
android:layout_width="49dp"
android:layout_height="49dp"
android:src="@drawable/my" /> <TextView
android:id="@+id/chat_send_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="鸿洋"
android:textSize="18sp" />
</LinearLayout> <TextView
android:id="@+id/chat_send_content"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toLeftOf="@id/ly_chat_icon"
android:background="@drawable/chat_send_msg"
android:clickable="true"
android:focusable="true"
android:gravity="center_vertical"
android:lineSpacingExtra="2dp"
android:minHeight="50dp"
android:text="有大吗。。。"
android:textColor="#000"
android:textSize="18sp" />
</RelativeLayout> </LinearLayout>

MainActivity实现

package com.example.android_robot_01;

import java.util.ArrayList;
import java.util.Date;
import java.util.List; import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.text.TextUtils;
import android.view.View;
import android.view.Window;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast; import com.example.android_robot_01.bean.ChatMessage;
import com.example.android_robot_01.bean.ChatMessage.Type;
import com.zhy.utils.HttpUtils; public class MainActivity extends Activity
{
/**
* 展示消息的listview
*/
private ListView mChatView;
/**
* 文本域
*/
private EditText mMsg;
/**
* 存储聊天消息
*/
private List<ChatMessage> mDatas = new ArrayList<ChatMessage>();
/**
* 适配器
*/
private ChatMessageAdapter mAdapter; private Handler mHandler = new Handler()
{
public void handleMessage(android.os.Message msg)
{
ChatMessage from = (ChatMessage) msg.obj;
mDatas.add(from);
mAdapter.notifyDataSetChanged();
mChatView.setSelection(mDatas.size() - 1);
};
}; @Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main_chatting); initView(); mAdapter = new ChatMessageAdapter(this, mDatas);
mChatView.setAdapter(mAdapter); } private void initView()
{
mChatView = (ListView) findViewById(R.id.id_chat_listView);
mMsg = (EditText) findViewById(R.id.id_chat_msg);
mDatas.add(new ChatMessage(Type.INPUT, "我是小貅貅,很高兴为您服务"));
} public void sendMessage(View view)
{
final String msg = mMsg.getText().toString();
if (TextUtils.isEmpty(msg))
{
Toast.makeText(this, "您还没有填写信息呢...", Toast.LENGTH_SHORT).show();
return;
} ChatMessage to = new ChatMessage(Type.OUTPUT, msg);
to.setDate(new Date());
mDatas.add(to); mAdapter.notifyDataSetChanged();
mChatView.setSelection(mDatas.size() - 1); mMsg.setText(""); // 关闭软键盘
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
// 得到InputMethodManager的实例
if (imm.isActive())
{
// 如果开启
imm.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT,
InputMethodManager.HIDE_NOT_ALWAYS);
// 关闭软键盘,开启方法相同,这个方法是切换开启与关闭状态的
} new Thread()
{
public void run()
{
ChatMessage from = null;
try
{
from = HttpUtils.sendMsg(msg);
} catch (Exception e)
{
from = new ChatMessage(Type.INPUT, "服务器挂了呢...");
}
Message message = Message.obtain();
message.obj = from;
mHandler.sendMessage(message);
};
}.start(); } }

消息ListView的adapter,根据类型的不同inflate不同的布局文件

package com.example.android_robot_01;

import java.util.List;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView; import com.example.android_robot_01.bean.ChatMessage;
import com.example.android_robot_01.bean.ChatMessage.Type; public class ChatMessageAdapter extends BaseAdapter
{
private LayoutInflater mInflater;
private List<ChatMessage> mDatas; public ChatMessageAdapter(Context context, List<ChatMessage> datas)
{
mInflater = LayoutInflater.from(context);
mDatas = datas;
} @Override
public int getCount()
{
return mDatas.size();
} @Override
public Object getItem(int position)
{
return mDatas.get(position);
} @Override
public long getItemId(int position)
{
return position;
} /**
* 接受到消息为1,发送消息为0
*/
@Override
public int getItemViewType(int position)
{
ChatMessage msg = mDatas.get(position);
return msg.getType() == Type.INPUT ? 1 : 0;
} @Override
public int getViewTypeCount()
{
return 2;
} @Override
public View getView(int position, View convertView, ViewGroup parent)
{
ChatMessage chatMessage = mDatas.get(position); ViewHolder viewHolder = null; if (convertView == null)
{
viewHolder = new ViewHolder();
if (chatMessage.getType() == Type.INPUT)
{
convertView = mInflater.inflate(R.layout.main_chat_from_msg,
parent, false);
viewHolder.createDate = (TextView) convertView
.findViewById(R.id.chat_from_createDate);
viewHolder.content = (TextView) convertView
.findViewById(R.id.chat_from_content);
convertView.setTag(viewHolder);
} else
{
convertView = mInflater.inflate(R.layout.main_chat_send_msg,
null); viewHolder.createDate = (TextView) convertView
.findViewById(R.id.chat_send_createDate);
viewHolder.content = (TextView) convertView
.findViewById(R.id.chat_send_content);
convertView.setTag(viewHolder);
} } else
{
viewHolder = (ViewHolder) convertView.getTag();
} viewHolder.content.setText(chatMessage.getMsg());
viewHolder.createDate.setText(chatMessage.getDateStr()); return convertView;
} private class ViewHolder
{
public TextView createDate;
public TextView name;
public TextView content;
} }

获取消息的工具类,暴露出去的,就是sendMsg这个静态方法,当然将返回的数据也直接封装成了ChatMessage

package com.zhy.utils;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.Date; import com.example.android_robot_01.bean.ChatMessage;
import com.example.android_robot_01.bean.ChatMessage.Type;
import com.example.android_robot_01.bean.CommonException;
import com.example.android_robot_01.bean.Result;
import com.google.gson.Gson; public class HttpUtils
{
private static String API_KEY = "534dc342ad15885dffc10d7b5f813451";
private static String URL = "http://www.tuling123.com/openapi/api"; /**
* 发送一个消息,并得到返回的消息
* @param msg
* @return
*/
public static ChatMessage sendMsg(String msg)
{
ChatMessage message = new ChatMessage();
String url = setParams(msg);
String res = doGet(url);
Gson gson = new Gson();
Result result = gson.fromJson(res, Result.class); if (result.getCode() > 400000 || result.getText() == null
|| result.getText().trim().equals(""))
{
message.setMsg("该功能等待开发...");
}else
{
message.setMsg(result.getText());
}
message.setType(Type.INPUT);
message.setDate(new Date()); return message;
} /**
* 拼接Url
* @param msg
* @return
*/
private static String setParams(String msg)
{
try
{
msg = URLEncoder.encode(msg, "UTF-8");
} catch (UnsupportedEncodingException e)
{
e.printStackTrace();
}
return URL + "?key=" + API_KEY + "&info=" + msg;
} /**
* Get请求,获得返回数据
* @param urlStr
* @return
*/
private static String doGet(String urlStr)
{
URL url = null;
HttpURLConnection conn = null;
InputStream is = null;
ByteArrayOutputStream baos = null;
try
{
url = new URL(urlStr);
conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(5 * 1000);
conn.setConnectTimeout(5 * 1000);
conn.setRequestMethod("GET");
if (conn.getResponseCode() == 200)
{
is = conn.getInputStream();
baos = new ByteArrayOutputStream();
int len = -1;
byte[] buf = new byte[128]; while ((len = is.read(buf)) != -1)
{
baos.write(buf, 0, len);
}
baos.flush();
return baos.toString();
} else
{
throw new CommonException("服务器连接错误!");
} } catch (Exception e)
{
e.printStackTrace();
throw new CommonException("服务器连接错误!");
} finally
{
try
{
if (is != null)
is.close();
} catch (IOException e)
{
e.printStackTrace();
} try
{
if (baos != null)
baos.close();
} catch (IOException e)
{
e.printStackTrace();
}
conn.disconnect();
} } }

参考链接:

Android 智能问答机器人的实现 - Hongyang - 博客频道 - CSDN.NET

完成,效果如下

Android之智能问答机器人

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