HTML 파싱

package com.a1joproject.smart.html_reader;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class MainActivity extends Activity {

    private TextView tv;
    EditText Parsing_Edit;
    // 웹사이트 주소를 저장할 변수
    String urlAddress = null;
    Handler handler = new Handler(); // 화면에 그려주기 위한 객체

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

        // 웹에서 html 읽어오기
        // Handler 객체를 통해야만 화면을 그릴수 있다

        Parsing_Edit = (EditText) findViewById(R.id.parsing_edit);
        tv = (TextView)findViewById(R.id.textView1);
        Button b = (Button)findViewById(R.id.button1);
        b.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                loadHtml(); // 웹에서 html 읽어오기
            }
        });
    } // end of onCreate

    void loadHtml() { // 웹에서 html 읽어오기
        Thread t = new Thread(new Runnable() {
            @Override
            public void run() {
                final StringBuffer sb = new StringBuffer();

                try {
                    urlAddress = Parsing_Edit.getText().toString();
                    URL url = new URL(urlAddress);
                    HttpURLConnection conn = (HttpURLConnection)url.openConnection();// 접속
                    if (conn != null) {
                        conn.setConnectTimeout(2000);
                        conn.setUseCaches(false);
                        if (conn.getResponseCode() == HttpURLConnection.HTTP_OK){
                            //    데이터 읽기
                            BufferedReader br = new BufferedReader(new InputStreamReader (conn.getInputStream(),"utf-8"));//"utf-8", "euc-kr"
                            while(true) {
                                String line = br.readLine();
                                if (line == null) break;
                                sb.append(line+"\n");
                            }
                            br.close(); // 스트림 해제
                        }
                        conn.disconnect(); // 연결 끊기
                    }
                    // 값을 출력하기
                    handler.post(new Runnable() {
                        @Override
                        public void run() {
                            tv.setText(sb.toString());
                        }
                    });
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
        t.start(); // 쓰레드 시작
    }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.a1joproject.smart.html_reader.MainActivity">
    <EditText
        android:id="@+id/parsing_edit"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textColor="#FFF"
        android:background="#000"/>
    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="250dp">

        <TextView
            android:id="@+id/LED_Power_Check"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Undetermined"/>
        <Button
            android:text="Test"
            android:id="@+id/button1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"/>
    </LinearLayout>

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="250dp"
        android:background="#ddd">
    <TextView
        android:id="@+id/textView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="loading..."/>
    </ScrollView>
</LinearLayout>