[2021모각코] 5회차 2021.08.05

Android Studio를 이용하여 Naver검색 어플리케이션을 개발하자!

 

5회차 모각표 목표

 

검색 결과를 출력하는 ListView를 구성하자_2

 

package com.example.naversearch;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListAdapter;
import android.widget.ListView;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {
    private EditText EditText1;
    private Thread mThread;
    private String inputLine;
    private ArrayList<String> titleList = new ArrayList<>();
    private ListView mListView;
    private ListViewAdapter listAdapter = new ListViewAdapter();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        initEditBox();

        initButton();

        initListView();
    }

    private void initListView(){

        mListView = findViewById(R.id.ListViewItem);
        mListView.setAdapter(listAdapter);
    }

    private void initEditBox() {
        EditText1 = (EditText) findViewById(R.id.EditBox1);
    }


    private void initButton() {
        /* 검색버튼 생성*/
        Button Button_Search = (Button) findViewById(R.id.Button_Search);
        Button_Search.setOnClickListener(mOnClickListener);
        Button_Search.setText("검색");
        /* 이전 페이지 버튼 생성*/
        Button Button_Prev = (Button) findViewById(R.id.Button_Prev);
        Button_Prev.setOnClickListener(mOnClickListener);
        Button_Prev.setText("이전 페이지");
        /* 다음 페이지 버튼 생성*/
        Button Button_Next = (Button) findViewById(R.id.Button_Next);
        Button_Next.setOnClickListener(mOnClickListener);
        Button_Next.setText("다음 페이지");
    }

    private final View.OnClickListener mOnClickListener = new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            switch (v.getId()) {
                case R.id.Button_Search:
                    //검색버튼 클릭 => 검색어와 검색유형 읽어옴
                    String query = EditText1.getText().toString();
                    System.out.println("------------------------");
                    System.out.println(query);
                    SearchNews(query);
                    System.out.println("------------------------");
                    System.out.println(inputLine);
                    parsing();
            }
        }
    };

    private void SearchNews(final String searchWord) {
        new Thread() {
            public void run() {
                String clientId = ""; //애플리케이션 클라이언트 아이디값"
                String clientSecret = ""; //애플리케이션 클라이언트 시크릿값"
                try {
                    String text = URLEncoder.encode(searchWord, "UTF-8");
                    String apiURL = "https://openapi.naver.com/v1/search/" + "news" + "?query=" + text + "&display=10" + "&start=1"; // json 결과
                    URL url = new URL(apiURL);
                    HttpURLConnection con = (HttpURLConnection) url.openConnection();
                    con.setRequestMethod("GET");
                    con.setRequestProperty("X-Naver-Client-Id", clientId);
                    con.setRequestProperty("X-Naver-Client-Secret", clientSecret);
                    int responseCode = con.getResponseCode();
                    BufferedReader br;
                    if (responseCode == 200) { // 정상 호출
                        br = new BufferedReader(new InputStreamReader(con.getInputStream(), "UTF-8"));
                    } else {  // 에러 발생
                        br = new BufferedReader(new InputStreamReader(con.getErrorStream()));
                    }
                    inputLine = br.readLine();
                    br.close();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }.start();
    }

    /*검색 결과 전처리*/
    private void parsing() {
        String title;
        String link;
        JSONObject jsonObject = null;
        try {
            jsonObject = new JSONObject(inputLine);
            JSONArray jsonArray = jsonObject.getJSONArray("items");
            for (int i = 0; i < jsonArray.length(); i++) {
                JSONObject item = jsonArray.getJSONObject(i);
                title = item.getString("title");
                link = item.getString("link");
                title = title.replace("<(/)?([a-zA-Z]*)(\\s[a-zA-Z]*=[^>]*)?(\\s)*(/)?>", "").replace("&quot;", "")
                        .replace("&lt;", "").replace("&gt;", "").replace("&amp;", "").replace("=", "");
                listAdapter.addItem(title);
            }
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }

}

 

package com.example.naversearch;

public class ListViewItem {

    private String titleStr;

    public void setTitle(String title){
        titleStr = title;
    }

    public String getTitle(){
        return this.titleStr;
    }
}