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