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JSONObject item = jsonArray.getJSONObject(0);
String floor = item.getString(TAG_FLOOR);
textFloor.setText(floor);
} catch (JSONException e) {
Log.d("Error", e.toString());
Toast.makeText(this, " 층 정보 로딩 실패", Toast.LENGTH_SHORT).show();
}
}
}

엘리베이터의 wifi 와 웹서버를 연결하는 소스이다.
마. ElevatorLogActivity

package com.example.jbtc_01_06.outside.Elevator;

import android.content.Intent;
import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;

import com.example.jbtc_01_06.outside.R;

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.util.ArrayList;
import java.util.HashMap;

public class ElevatorLogActivity extends AppCompatActivity {
private ListView listLog;

private static final String TAG_JSON = "EventLog";
private static final String TAG_NUMBER = "Number";
private static final String TAG_EVENT = "Event";

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