Android studio开发小型对话机器人app(实例代码)

public class RobotManager {
 private static String url = "http://api.qingyunke.com/api.php?key=free&appid=0&msg=!!";

 public static String getUrl(String question){
 String real_url = url.replace("!!",question);//将url中的!!替换为用户输入的内容
 return real_url;
 }
}

public interface GetConnection {
 void onFinish(String response);	//返回正常
 void onError(Exception e);	//返回错误
}

public class MyConnection {

 public static void getResponse(final String url,final GetConnection getConnection){
 new Thread(new Runnable() {
  @Override
  public void run() {
  HttpURLConnection connection;
  try{
   URL Url = new URL(url);
   connection = (HttpURLConnection) Url.openConnection();
   connection.setRequestMethod("GET");//Get方法
   connection.setConnectTimeout(2000);//延时时间
   connection.setReadTimeout(3000);
   connection.setDoInput(true);
   InputStream in = connection.getInputStream();
   BufferedReader reader = new BufferedReader(new InputStreamReader(in));
   StringBuilder response = new StringBuilder();
   String line;
   while ((line = reader.readLine()) != null) {
   response.append(line);
   }
   Log.e("result",response.toString());
   if (getConnection != null) {
   getConnection.onFinish(response.toString());
   }else {
   Log.e("WeiNull","WeiNull");//测试时用的，无须关心。
   }
  }catch(IOException io) {
   if (getConnection != null) {
   getConnection.onError(io);
   }
  }
  }
 }).start();

 }
}

public class MainActivity extends AppCompatActivity {

 private List<Msg> msgList = new ArrayList<Msg>();

 private EditText inputText;

 private Button send;

 private RecyclerView msgRecyclerView;

 private MsgAdapter adapter;

 private Handler handler = new Handler(){
 @Override
 public void handleMessage(@NonNull Message msg) {
  switch (msg.what){
  case 1:{
   Bundle data = msg.getData();
   String result = data.getString("result");
   Msg robotMsg = new Msg(result,Msg.TYPE_RECEIVED);
   msgList.add(robotMsg);
   adapter.notifyItemInserted(msgList.size() - 1); // 当有新消息时，刷新ListView中的显示
   msgRecyclerView.scrollToPosition(msgList.size() - 1); // 将ListView定位到最后一行
  }break;
  case 2:{}break;
  default:break;
  }
 }
 };

 private void getInter(String content){
 MyConnection.getResponse(RobotManager.getUrl(content), new GetConnection() {
  @Override
  public void onFinish(String response) {
  ContentBean contentBean = new ContentBean();
  Log.e("getResult",response);
  Message msg = new Message();
  Bundle data = new Bundle();
  Gson gson = new Gson();
  contentBean = gson.fromJson(response,ContentBean.class);	//用Gson将返回内容序列化为ContentBean对象。
  if(contentBean.getResult()==0){
   data.putString("result",contentBean.getContent());
  }else{
   data.putString("result","我听不懂你在说什么呀！");
  }
  msg.setData(data);
  msg.what = 1;
  handler.sendMessage(msg);
  }

  @Override
  public void onError(Exception e) {
  e.printStackTrace();
  }
 });
 }

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 initMsgs(); // 初始化消息数据
 inputText = findViewById(R.id.input_text);
 send = findViewById(R.id.send);
 msgRecyclerView = findViewById(R.id.msg_recycler_view);
 LinearLayoutManager layoutManager = new LinearLayoutManager(this);
 msgRecyclerView.setLayoutManager(layoutManager);
 adapter = new MsgAdapter(msgList);
 msgRecyclerView.setAdapter(adapter);
 send.setOnClickListener(new View.OnClickListener() {
  @Override
  public void onClick(View v) {
  String content = inputText.getText().toString();
  if (!"".equals(content)) {
   Msg msg = new Msg(content, Msg.TYPE_SENT);
   msgList.add(msg);
   getInter(content);
   Log.e("url",RobotManager.getUrl(content));
   adapter.notifyItemInserted(msgList.size() - 1); // 当有新消息时，刷新ListView中的显示
   msgRecyclerView.scrollToPosition(msgList.size() - 1); // 将ListView定位到最后一行
   inputText.setText(""); // 清空输入框中的内容

  }
  }
 });
 }

 private void initMsgs() {
 Msg msg1 = new Msg("我是菲菲，快来和我聊天吧* ( ´͈ ᵕ `͈ )◞♡", Msg.TYPE_RECEIVED);
 msgList.add(msg1);
 }
}

public class ContentBean {

 /**
 * result : 0
 * content : [04月08日] 邯郸天气：小雨，白天 17℃，夜晚 9℃，微风，<3级转3-4级
 */
 private int result;
 private String content;

 public int getResult() {
 return result;
 }

 public void setResult(int result) {
 this.result = result;
 }

 public String getContent() {
 return content;
 }

 public void setContent(String content) {
 this.content = content;
 }
}

public class Msg {

 public static final int TYPE_RECEIVED = 0;

 public static final int TYPE_SENT = 1;

 private String content;

 private int type;

 public Msg(String content, int type) {
 this.content = content;
 this.type = type;
 }

 public String getContent() {
 return content;
 }

 public int getType() {
 return type;
 }

}

public class MsgAdapter extends RecyclerView.Adapter<MsgAdapter.ViewHolder> {

 private List<Msg> mMsgList;

 static class ViewHolder extends RecyclerView.ViewHolder {

 LinearLayout leftLayout;

 LinearLayout rightLayout;

 TextView leftMsg;

 TextView rightMsg;

 public ViewHolder(View view) {
  super(view);
  leftLayout = (LinearLayout) view.findViewById(R.id.left_layout);
  rightLayout = (LinearLayout) view.findViewById(R.id.right_layout);
  leftMsg = (TextView) view.findViewById(R.id.left_msg);
  rightMsg = (TextView) view.findViewById(R.id.right_msg);
 }
 }

 public MsgAdapter(List<Msg> msgList) {
 mMsgList = msgList;
 }

 @Override
 public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
 View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.msg_item, parent, false);
 return new ViewHolder(view);
 }

 @Override
 public void onBindViewHolder(ViewHolder holder, int position) {
 Msg msg = mMsgList.get(position);
 if (msg.getType() == Msg.TYPE_RECEIVED) {
  // 如果是收到的消息，则显示左边的消息布局，将右边的消息布局隐藏
  holder.leftLayout.setVisibility(View.VISIBLE);
  holder.rightLayout.setVisibility(View.GONE);
  holder.leftMsg.setText(msg.getContent());
 } else if(msg.getType() == Msg.TYPE_SENT) {
  // 如果是发出的消息，则显示右边的消息布局，将左边的消息布局隐藏
  holder.rightLayout.setVisibility(View.VISIBLE);
  holder.leftLayout.setVisibility(View.GONE);
  holder.rightMsg.setText(msg.getContent());
 }
 }

 @Override
 public int getItemCount() {
 return mMsgList.size();
 }

}