技术标签: android 图灵机器人 android开发笔记
前二天,看了Android 智能问答机器人的实现的博文,我们可以进入图灵机器人主页,根据平台接入的介绍,我们知道,主是要在客户端按一定的格式(key 必须 + userid get 非必须,上下文功能必须 +info get 必须,请求内容 + loc get 非必须,位置信息 + lon get 非必须,经度 + lat get 非必须,纬度,),发送一个消息请求(请求方式: http get),数据返回(JSON格式),所以, 我只要解析返回的json格式的数据,并根据返回的数据返回码(code),来分类解析对应种类的数据,并把他们显示出来就OK了。
上一篇博文是api接入,是自己写的一个http get方法,在这个例子中,本来我打算采用官方的java平台接入,发现官方给的api有问题,我就参照网上的资料,自己写了一个api接入方法,有兴趣的,可以看看。
这个界面,主要是一个listview--显示用户和机器人的对话信息,还有一个就是edittext和发送button.
package com.example.smartrobot;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import com.example.smartrobot.ChatMessage.Type;
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;
//http://blog.csdn.net/lmj623565791/article/details/38498353
//http://www.tuling123.com/openapi/cloud/access_api.jsp
//http://tech.ddvip.com/2013-08/1375807684200390.html
public class MainActivity extends Activity
{
private ListView mChatView;
private EditText mMsg;
private List<ChatMessage> mDatas = new ArrayList<ChatMessage>();
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, "hello,I'm very glad to serve you"));
}
public void sendMessage(View view)
{
final String msg = mMsg.getText().toString();
if (TextUtils.isEmpty(msg))
{
Toast.makeText(this, "You do not have to fill in the information",
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("");
new Thread()
{
public void run()
{
ChatMessage from = null;
try
{
//from = HttpUtils.sendMsg(msg);
from = HttpUtils.sendMessageByExample(msg);
} catch (Exception e)
{
from = new ChatMessage(Type.INPUT, "Server hang...");
}
Message message = Message.obtain();
message.obj = from;
mHandler.sendMessage(message);
};
}.start();
}
}
其中方法sendMsg和sendMessageByExample是验证可用的方法,但是参考官方文档的java接入api: sendMessageByExample02测试通不过。
package com.example.smartrobot;
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 org.apache.http.HttpResponse;
import org.apache.http.ParseException;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import android.util.Log;
import com.example.smartrobot.ChatMessage.Type;
import com.google.gson.Gson;
public class HttpUtils
{
public static final String TAG = "HttpUtils";
public static String API_KEY = "534dc342ad15885dffc10d7b5f813451";
public static final String api_key_my = "5c21eaa5c118d25065c3e1f058942581";
public static String URL = "http://www.tuling123.com/openapi/api";
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);
String text = null;
if (result.getCode() > 400000 || result.getText() == null|| result.getText().trim().equals(""))
{
text = "The function waiting for the development ...";
}else
{
text = result.getText();
}
message.setMsg(text);
message.setType(Type.INPUT);
message.setDate(new Date());
return message;
}
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;
}
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("The server connection error");
}
} catch (Exception e)
{
e.printStackTrace();
throw new CommonException("The server connection error");
} 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();
}
}
public static ChatMessage sendMessageByExample(String msg){
ChatMessage message = new ChatMessage();
String requesturl = setParams(msg);
String res = doGetByExample(requesturl);
message.setMsg(res);
message.setType(Type.INPUT);
message.setDate(new Date());
return message;
}
private static String doGetByExample(String requesturl) {
// TODO Auto-generated method stub
HttpGet request = new HttpGet(requesturl);
HttpResponse response = null;
try {
HttpClient httpClient = new DefaultHttpClient();
response = httpClient.execute(request);
Log.i(TAG, "response.toString():"+response.toString());
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
Log.i(TAG, "e--2:"+e.toString());
e.printStackTrace();
return null;
} catch (IOException e) {
// TODO Auto-generated catch block
Log.i(TAG, "e--3:"+e.toString());
e.printStackTrace();
return null;
}
//200 is right return codes
if(response.getStatusLine().getStatusCode() == 200){
try {
String res = EntityUtils.toString(response.getEntity());
Log.i(TAG, "res:"+res);
Gson gson = new Gson();
Result result = gson.fromJson(res, Result.class);
Log.i(TAG, "result.toString():"+result.toString());
if (result.getCode() > 400000 || result.getText() == null|| result.getText().trim().equals(""))
{
return "The function waiting for the development ...";
}else
{
Log.i(TAG, "result.getText():"+result.getText());
return result.getText();
}
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
}else{
return null;
}
}
public static ChatMessage sendMessageByExample02(String msg){
ChatMessage message = new ChatMessage();
String requesturl = setParams(msg);
HttpGet request = new HttpGet(requesturl);
HttpResponse response = null;
try {
response = HttpClients.createDefault().execute(request);
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String result = null;
//200 is right return codes
if(response.getStatusLine().getStatusCode() == 200){
try {
result = EntityUtils.toString(response.getEntity());
} catch (ParseException e) {
// TODO Auto-generated catch block
Log.i(TAG, "e--4:"+e.toString());
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
Log.i(TAG, "e--5:"+e.toString());
e.printStackTrace();
}
}else
{
result = "The function waiting for the development ...";
}
message.setMsg(result);
message.setType(Type.INPUT);
message.setDate(new Date());
return message;
}
}
package com.example.smartrobot;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
public class ChatMessage
{
private Type type ;
private String msg;
private Date date;
private String dateStr;
private String name;
public enum Type
{
INPUT, OUTPUT
}
public ChatMessage()
{
}
public ChatMessage(Type type, String msg)
{
super();
this.type = type;
this.msg = msg;
setDate(new Date());
}
public String getDateStr()
{
return dateStr;
}
public Date getDate()
{
return date;
}
public void setDate(Date date)
{
this.date = date;
DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss E");
this.dateStr = df.format(date);
}
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public Type getType()
{
return type;
}
public void setType(Type type)
{
this.type = type;
}
public String getMsg()
{
return msg;
}
public void setMsg(String msg)
{
this.msg = msg;
}
}
package com.example.smartrobot;
import java.util.List;
import com.example.smartrobot.ChatMessage.Type;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
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;
}
@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;
}
}
package com.example.smartrobot;
public class Result
{
private int code;
private String text;
public Result()
{
}
public Result(int resultCode, String msg)
{
this.code = resultCode;
this.text = msg;
}
public Result(int resultCode)
{
this.code = resultCode;
}
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;
}
}
(1)返回的数据解析:
从官方api来看,返回的数据json格式分为许多种类,我们应该针对各个种类来分别解析,并且很友好的在界面显示出来。而我们只是把json的code和text解析出来了,后面的其它数据,是没有解析的。当然了, 这个数据解析不是怎么特别难,参考样例,我们分类解析就OK了。
(2)解析完数据,我们应该采用什么方式来管理返回的数据,解析返回的数据,并把这些数据显示在界面中呢?当然,有一个笨的方法,就是采用一个一个针对功能的方法来实现,但是,编程经验告诉我们,我们应该采用针对接口的方法来实现这一部分。我可能采用的方案是观察者模式来管理,过滤和实时显示数据,这部分,有时间再来做吧。
http://download.csdn.net/download/hfreeman2008/8211255
(1)Android 智能问答机器人的实现
http://blog.csdn.net/lmj623565791/article/details/38498353
(2)图灵机器人平台接入
http://www.tuling123.com/openapi/cloud/access_api.jsp
(3)Android 网络操作常用的两个类
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