안드로이드와 PHP 로그인 연동처리 (자동로그인, 세션처리, 네트워크 상태 체크 포함)

안드로이드와 PHP 간에 로그인 연동처리 방법을 보강했다.

네트워크 상태체크, 폰에 자동로그인 정보기록하기, POST로 로그인 처리 하는 부분까지는 이전 게시글에 있는데 본격적으로 서버에 있는 다른 자료를 검색하면서 SESSION 검사를 해서 비정상 접속은 차단하는 것까지 해야 안전하기 때문에, 세션정보까지 연동되도록 처리하는 과정을 추가했다.

처음에 세션이 생성되는지에 대한 로그, 생성된 세션이 다른 Activity 에서 제대로 받는지 여부에 대해서 확인하는 로그인데 동일한 세션 값이 넘어가는 걸 확인할 수 있다.

자료 검색해서 원하는 결과를 제대로 얻기까지 많은 블로그를 탐독하고 찾으면서 겨우 성공했다.

PHP 코드상에서 처리하는 사항은 잘 아는데 안드로이드 부분은 처음 접하다보니 어렵다.

Web에서는 세션정보가 잘 넘어가는데 안드로이드에서 세션처리를 해주어야만 넘어간다.

===== loginChk.php ======

<?php
session_start();
if(isset($_POST['loginID']) && !empty($_POST['loginID']) && isset($_POST['loginPW']) && !empty($_POST['loginPW'])) {
    $loginID = trim($_POST['loginID']);
    $loginPW = trim($_POST['loginPW']);
    $deviceID = trim($_POST['deviceID']);

    $deviceID = $deviceID ? $deviceID : '';  // 안드로이드 폰의 장치 ID (안드로이드 코드에서 확인)

    if(empty($deviceID)){
        require_once $_SERVER['DOCUMENT_ROOT'].'/dbconnect.php';
        require_once $_SERVER['DOCUMENT_ROOT'].'/phpclass/loginClass.php';
        $c=new LoginClass();

        $row = $c->WebUserAuthCheck($loginID,$loginPW);
        if(is_array($row)) {
            if($row['code'] > 0) {
                $_SESSION['userID'] = $row['id'];
                $_SESSION['userPW'] = md5($loginPW);
                $_SESSION['code'] = $row['code'];
                $_SESSION['ip'] = $_SERVER['REMOTE_ADDR'];
                $_SESSION['ua'] = $_SERVER['HTTP_USER_AGENT'];

                echo("<meta http-equiv='Refresh' content='0; URL=mobile/list.php'>");
            }
        }

    } else {
        require_once $_SERVER['DOCUMENT_ROOT'].'/db.info.php';
        require_once $_SERVER['DOCUMENT_ROOT'].'/phpclass/dbClass.php';
        $conn=new MySQLiDbClass();
        $DB_CONNECT = $conn->isConnectDb($DB);

        require_once $_SERVER['DOCUMENT_ROOT'].'/phpclass/loginClass.php';
        $c=new LoginClass();

        $result = $c->MobileUserAuthCheck($loginID,$loginPW,$deviceID);
        if($result > 0 ) {
            session_save_path('./_tmp/session');

            $_SESSION['userID'] = $loginID;
            $_SESSION['userPW'] = md5($loginPW);
            $_SESSION['ip'] = $_SERVER['REMOTE_ADDR'];
            $_SESSION['ua'] = $_SERVER['HTTP_USER_AGENT'];
            echo 'Login Success';
        } else if($result == '0') {
            echo 'Login Fail';
        } else {
            echo 'Phone Dismatch';
        }
    }
   
} else {
    echo("<meta http-equiv='Refresh' content='0; URL=loginForm.php'>");
}
?>

===== get_json.php ======

<?php
session_start();
if(!($_SESSION['userID'] && $_SESSION['userPW'])) {
    exit;
}

$query = $_REQUEST['search'];

    include_once $_SERVER['DOCUMENT_ROOT'].'/db.info.php';
    require_once $_SERVER['DOCUMENT_ROOT'].'/phpclass/dbClass.php';
    require_once $_SERVER['DOCUMENT_ROOT'].'/phpclass/xmlClass.php';

    $conn = new MySQLiDbClass(); // DB 함수
    $DB_CONNECT = $conn->isConnectDb($DB);

    // 화면에 출력할 칼럼 발췌
    $sql = "select uid,name,mobile from Person ";
    if(!empty($query)) {
        $sql .= "where name LIKE '%".$query."%' or mobile LIKE '%".$query."%'";
    }
    $result = mysqli_query($DB_CONNECT,$sql);

    // 1. JSON 데이터 생성방법
    $c = new jsonClass();
    echo $c->JSONEncode($result,'result');

?>

안드로이드 로그인 소스코드 부분이다.

IP주소 부분을 여러곳에서 사용해야 해서 별도로 Value.java 파일로 작성했다.

===== Value.java ====

import android.app.Activity;

public class Value extends Activity {
    public static final String IPADDRESS = "http://IP주소"; // SERVER IP
    public static final String VERSION = "1.0.0"; // App Version

}

===== Login.java =====

import java.util.ArrayList;
import java.util.List;

import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.cookie.Cookie;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;

import android.app.ActionBar;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.ConnectivityManager;
import android.os.Bundle;
import android.provider.Settings.Secure;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.webkit.CookieManager;
import android.webkit.CookieSyncManager;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.Toast;

public class Login extends Activity {

    String getDeviceID; // 스마트기기의 장치 고유값
    ProgressDialog dialog = null;
    EditText etId;
    EditText etPw;
   
    String loginID;
    String loginPW;
    CheckBox autologin;
    Boolean loginChecked;
    List<NameValuePair> params;
    public SharedPreferences settings;
    CookieManager cookieManager;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.login);
       
        // ActionBar 제거하기
        ActionBar actionbar = getActionBar();
        actionbar.hide();

        // 네트워크 연결상태 체크
        if(NetworkConnection() == false){
            NotConnected_showAlert();
        }
       
        etId = (EditText) findViewById(R.id.login_id_edit);
        etPw = (EditText) findViewById(R.id.login_pw_edit);   
        autologin = (CheckBox) findViewById(R.id.autologinchk);
       
        settings = getSharedPreferences("settings",    Activity.MODE_PRIVATE);
        loginChecked = settings.getBoolean("LoginChecked", false);
        if (loginChecked) {
            etId.setText(settings.getString("loginID", ""));
            etPw.setText(settings.getString("loginPW", ""));
            autologin.setChecked(true);
        }
       
        if(!settings.getString("loginID", "").equals("")) etPw.requestFocus();
       
        CookieSyncManager.createInstance(this);
        cookieManager = CookieManager.getInstance();
        CookieSyncManager.getInstance().startSync();
       
        Button submit = (Button) findViewById(R.id.login_btn);
        submit.setOnClickListener(new Button.OnClickListener(){

            @Override
            public void onClick(View v) {
                dialog = ProgressDialog.show(Login.this, "", "Validating user...", true);
                 new Thread(new Runnable() {
                        public void run() {
                            login();                         
                        }
                       
                      }).start();                
            }
           
        });
       
    }

    void login() {
        try {
            loginID = etId.getText().toString().trim();
            loginPW = etPw.getText().toString().trim();
           
            // 단말기의 ID 정보를 얻기 위해서는 READ_PHONE_STATE 권한이 필요
            TelephonyManager mTelephony = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
            if (mTelephony.getDeviceId() != null){
                getDeviceID = mTelephony.getDeviceId();  // 스마트폰 기기 정보
            } else {
                getDeviceID = Secure.getString(getApplicationContext().getContentResolver(), Secure.ANDROID_ID);
            }       
       
            String postURL = Value.IPADDRESS + "/loginChk.php";
            HttpPost post = new HttpPost(postURL);
           
            // 전달할 인자들
            params = new ArrayList<NameValuePair>();
            params.add(new BasicNameValuePair("loginID", loginID));
            params.add(new BasicNameValuePair("loginPW", loginPW));
            params.add(new BasicNameValuePair("deviceID", getDeviceID));
           
            UrlEncodedFormEntity ent = new UrlEncodedFormEntity(params,HTTP.UTF_8);
            post.setEntity(ent);

            HttpClient httpclient = new DefaultHttpClient();
                              
            ResponseHandler<String> responseHandler = new BasicResponseHandler();
            final String responsePost = httpclient.execute(post, responseHandler);

            System.out.println("DeviceID : " + getDeviceID);
            System.out.println("Response : " + responsePost);
           
            runOnUiThread(new Runnable() {
                public void run() {
                    dialog.dismiss();
                }
            });
           
            if(responsePost.equalsIgnoreCase("Login Success")){ // 로그인 정보 일치
                runOnUiThread(new Runnable() {
                    public void run() {
                        Toast.makeText(Login.this,"Login Success", Toast.LENGTH_SHORT).show();
                    }
                });
               
                List<Cookie> cookies = ((DefaultHttpClient)httpclient).getCookieStore().getCookies();
                if (!cookies.isEmpty()) {
                    for (int i = 0; i < cookies.size(); i++) {
                        String cookieString = cookies.get(i).getName() + "="
                                    + cookies.get(i).getValue();
                        Log.e("PHP_setCookie", cookieString);
                        cookieManager.setCookie(Value.IPADDRESS, cookieString);
                    }
                }
                Thread.sleep(500);
               
                startActivity(new Intent(this.getApplicationContext(), MainActivity.class));
                finish(); // finish()를 호출해서 Activity를 없애줌

            } else if(responsePost.equalsIgnoreCase("Phone Dismatch")){ // 등록된 단말기와 불일치
                deviceDismatch_showAlert();
            } else {
                showAlert();
            }
        } catch(Exception e) {
            dialog.dismiss();
            System.out.println("Exception : " + e.getMessage());
        }
       
    }
   
    public void onStop(){
        // 어플리케이션이 화면에서 사라질때
        super.onStop();       
        // 자동 로그인이 체크되어 있고, 로그인에 성공했으면 폰에 자동로그인 정보 저장     
        if (autologin.isChecked()) {
             settings = getSharedPreferences("settings",Activity.MODE_PRIVATE);
             SharedPreferences.Editor editor = settings.edit();
            
             editor.putString("loginID", loginID);
             editor.putString("loginPW", loginPW);
             editor.putBoolean("LoginChecked", true);
            
             editor.commit();
         } else {
             // 자동 로그인 체크가 해제되면 폰에 저장된 정보 모두 삭제
             settings = getSharedPreferences("settings",    Activity.MODE_PRIVATE);
             SharedPreferences.Editor editor = settings.edit();
              editor.clear(); // 모든 정보 삭제
             editor.commit();
         }
       
    }

    public void deviceDismatch_showAlert(){
        Login.this.runOnUiThread(new Runnable() {
            public void run() {
                AlertDialog.Builder builder = new AlertDialog.Builder(Login.this);
                builder.setTitle("등록단말 불일치");
                builder.setMessage("최초 등록된 단말기가 아닙니다.\n" + "관리자에게 문의하여 단말기 변경신청을 하시기 바랍니다.") 
                       .setCancelable(false)
                       .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                           public void onClick(DialogInterface dialog, int id) {
                           }
                       });                    
                AlertDialog alert = builder.create();
                alert.show();              
            }
        });
    }

    public void showAlert(){
        Login.this.runOnUiThread(new Runnable() {
            public void run() {
                AlertDialog.Builder builder = new AlertDialog.Builder(Login.this);
                builder.setTitle("로그인 에러");
                builder.setMessage("로그인 정보가 일치하지 않습니다.") 
                       .setCancelable(false)
                       .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                           public void onClick(DialogInterface dialog, int id) {
                           }
                       });                    
                AlertDialog alert = builder.create();
                alert.show();              
            }
        });
    }
   
    private void NotConnected_showAlert() {
        AlertDialog.Builder builder = new AlertDialog.Builder(Login.this);
        builder.setTitle("네트워크 연결 오류");
        builder.setMessage("사용 가능한 무선네트워크가 없습니다.\n" + "먼저 무선네트워크 연결상태를 확인해 주세요.") 
               .setCancelable(false)
               .setPositiveButton("확인", new DialogInterface.OnClickListener() {
                   public void onClick(DialogInterface dialog, int id) {
                       finish(); // exit
                           //application 프로세스를 강제 종료
                           android.os.Process.killProcess(android.os.Process.myPid() );
                   }
               });                    
        AlertDialog alert = builder.create();
        alert.show();        
       
    }
   
    private boolean NetworkConnection() {
        ConnectivityManager manager = (ConnectivityManager) getSystemService (Context.CONNECTIVITY_SERVICE);
        boolean isMobileAvailable = manager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).isAvailable();
        boolean isMobileConnect = manager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).isConnectedOrConnecting();
        boolean isWifiAvailable = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI).isAvailable();
        boolean isWifiConnect = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI).isConnectedOrConnecting();
       
        if ((isWifiAvailable && isWifiConnect) || (isMobileAvailable && isMobileConnect)){
            return true;
        }else{
            return false;
        }
    }
   
    // Back 버튼을 누르면 어플 종료여부 확인 처리
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if( keyCode == KeyEvent.KEYCODE_BACK ) {
            new AlertDialog.Builder(this).setIcon(android.R.drawable.ic_dialog_alert).setTitle("Quit").setMessage("어플을 종료하시겠습니까?").setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                @Override
                public void onClick( DialogInterface dialog, int which) {
                    moveTaskToBack(true); // 본Activity finish후 다른 Activity가 뜨는 걸 방지.
                    finish();
                    //application 프로세스를 강제 종료
                    android.os.Process.killProcess(android.os.Process.myPid() );
                }
        }).setNegativeButton( "No", null ).show();
     
        return true;
      }
       
      return super.onKeyDown(keyCode, event);
     }
       
    @Override
    protected void onResume()
    {
        super.onResume();
        CookieSyncManager.getInstance().startSync();
    }
   
    @Override
    protected void onPause()
    {
        super.onPause();
        CookieSyncManager.getInstance().stopSync(); // 동기화 종료
    }
}

===== MainActivity.java =======

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

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

import android.app.ActionBar;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Vibrator;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.CookieManager;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {

    private ListView mListView = null;
    private ListViewAdapter mAdapter = null;

    // 서버 정보를 파싱하기 위한 변수 선언
    String myJSON; 
    private static final String TAG_RESULTS="result"; 
    private static final String TAG_UID = "uid"; 
    private static final String TAG_NAME = "name"; 
    private static final String TAG_Mobile ="mobile"; 
 
    JSONArray peoples = null;   

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       
        // ActionBar 제거하기
        ActionBar actionbar = getActionBar();
        actionbar.hide();

        mListView = (ListView) findViewById(R.id.listView); 
        mAdapter = new ListViewAdapter(this);       
       
        // 서버에 있는 정보를 읽어다가 mAdapter.addItem 에 추가하는 과정
        getDbData(Value.IPADDRESS + "/mobile/get_json.php");
       
        mListView.setAdapter(mAdapter);
       
        TextView searchView = (TextView) findViewById(R.id.SearchView);
        TextView phonebookView = (TextView) findViewById(R.id.PhonebookView);       

        searchView.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v) {
                Toast.makeText(getApplicationContext(), "검색화면으로 이동합니다", Toast.LENGTH_LONG).show();
                Intent intent = new Intent(MainActivity.this, Search_Item.class);
                startActivity(intent);
            }           
        });
       
        phonebookView.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v) {               
                Toast.makeText(getApplicationContext(), "내 폰의 전화번호부를 가져옵니다", Toast.LENGTH_LONG).show();
                Intent intent = new Intent(MainActivity.this, PhonebookActivity.class);
                startActivity(intent);
            }
           
        });

    }

   
    private void getDbData(String string) {
        class GetDataJSON extends AsyncTask<String, Void, String>{ 
           
            @Override 
            protected String doInBackground(String... params) { 
 
                String uri = params[0];
               
 
                BufferedReader bufferedReader = null; 
                try { 
                    URL url = new URL(uri); 
                    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                    // 세션 쿠키 전달
                    String cookieString = CookieManager.getInstance().getCookie(Value.IPADDRESS);
                   
                    StringBuilder sb = new StringBuilder(); 
 
                    if(conn != null){ // 연결되었으면
                        //add request header
                        conn.setRequestMethod("POST");
                        conn.setRequestProperty("USER-AGENT", "Mozilla/5.0");
                        conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
                        conn.setRequestProperty("Accept-Language", "en-US,en;q=0.5");
                        if (cookieString != null) {
                             conn.setRequestProperty("Cookie", cookieString);
                             Log.e("PHP_getCookie", cookieString);
                         }
                        conn.setConnectTimeout(10000);
                        conn.setReadTimeout(10000);
                        conn.setUseCaches(false);
                        conn.setDefaultUseCaches(false);
                        conn.setDoOutput(true); // POST 로 데이터를 넘겨주겠다는 옵션
                        //conn.setDoInput(true);
                       
                        int responseCode = conn.getResponseCode();
                        System.out.println("GET Response Code : " + responseCode);       
                        if(responseCode == HttpURLConnection.HTTP_OK){ // 연결 코드가 리턴되면
                            bufferedReader = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
                            String json;
                            while((json = bufferedReader.readLine())!= null){
                                sb.append(json + "\n");
                            }     
                        }
                        bufferedReader.close();
                    }
                    return sb.toString().trim(); 
 
                } catch(Exception e){ 
                    return new String("Exception: " + e.getMessage());
                }  
 
            } 
 
            protected void onPostExecute(String result){ 
                myJSON=result; 
                showList(); 
            }           
        } 
       
        GetDataJSON g = new GetDataJSON(); 
        g.execute(string);                
       
    }
   
    protected void showList() {
        // 서버에서 읽어온 정보를 mAdapter 에 저장하고 화면에 출력
        try { 
            JSONObject jsonObj = new JSONObject(myJSON); 
            peoples = jsonObj.getJSONArray(TAG_RESULTS);
           
            for(int i=0;i<peoples.length();i++){ 
                JSONObject c = peoples.getJSONObject(i); 
                String uid = c.getString(TAG_UID); 
                String name = c.getString(TAG_NAME); 
                String mobile = c.getString(TAG_Mobile); 
                Drawable myIcon = getResources().getDrawable( R.drawable.ic_launcher );
               
                mAdapter.addItem(myIcon,uid,name,mobile);
            }
           
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    mAdapter.notifyDataSetChanged();
                }
            });
           
        } catch (JSONException e) { 
            e.printStackTrace(); 
        }

    } 

    class ViewHolder {
         public LinearLayout child_layout;
         public ImageView mImage;     
         public Button childListBtn;     
         public TextView name;
         public TextView mobile;
    }

    private class ListViewAdapter extends BaseAdapter {

        private Context mContext = null;
        private ArrayList<ListData> mListData = new ArrayList<ListData>();
       
        public ListViewAdapter(Context mContext) {
            super();
            this.mContext = mContext;
        }
       
        @Override
        public int getCount() {       
            return mListData.size();
        }

        @Override
        public Object getItem(int position) {       
            return mListData.get(position);
        }

        @Override
        public long getItemId(int position) {       
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder viewHolder;
            View view = convertView;
            if (view == null) {
                viewHolder = new ViewHolder();
         
                LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                view = inflater.inflate(R.layout.list_item, parent, false);
               
                view.setBackgroundColor(0x00FFFFFF);
                view.invalidate();
         
                viewHolder.child_layout = (LinearLayout) view.findViewById(R.id.child_layout);
                viewHolder.mImage = (ImageView) view.findViewById(R.id.mImage);
                viewHolder.childListBtn = (Button ) view.findViewById(R.id.childListBtn);
                viewHolder.name = (TextView) view.findViewById(R.id.name);
                viewHolder.mobile = (TextView) view.findViewById(R.id.mobile);
         
                view.setTag(viewHolder);
            } else {
                viewHolder = (ViewHolder) view.getTag();
            }
           
            final ListData mData = mListData.get(position);
           
            if (mData.mImage != null) {
                viewHolder.mImage.setVisibility(View.VISIBLE);
                viewHolder.mImage.setImageDrawable(mData.mImage);
            } else {
                viewHolder.mImage.setVisibility(View.GONE);
            }
           
            viewHolder.childListBtn.setText(mData.uid);
            viewHolder.name.setText(mData.name);
            viewHolder.mobile.setText(mData.mobile);
           
            viewHolder.childListBtn.setOnClickListener(new Button.OnClickListener(){

                @Override
                public void onClick(View v) {
                   
                    Vibrator vibe = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
                    vibe.vibrate(50);
                   
                    AlertDialog showdialog = new AlertDialog.Builder(MainActivity.this)
                            .setTitle(mData.name)
                            .setMessage(mData.mobile + " 통화하시겠습니까?")
                            .setPositiveButton("예",
                                    new DialogInterface.OnClickListener() {

                                        public void onClick(DialogInterface dialog,int which) {

                                            Intent i = new Intent(Intent.ACTION_CALL,Uri.parse("tel:"+ mData.mobile));
                                            i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                                            startActivity(i);
                                        }

                                    })
                            .setNegativeButton(
                                    "아니오",
                                    new DialogInterface.OnClickListener() {

                                        public void onClick(DialogInterface dialog,int which) {
                                            dialog.dismiss();
                                        }
                                    }).create();
                    showdialog.show();
                }
               
            });
           
            return view;
        }

        public void addItem(Drawable icon, String uid, String name, String mobile){
            ListData addInfo = null;
            addInfo = new ListData();
            addInfo.mImage = icon;
            addInfo.uid = uid;
            addInfo.name = name;
            addInfo.mobile = mobile;
                    
            mListData.add(addInfo);
        }
       
        public void remove(int position){
            mListData.remove(position);
            mAdapter.notifyDataSetChanged();
        }
   
   
    }
   
    // Back 버튼을 누르면 어플 종료여부 확인 처리
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if( keyCode == KeyEvent.KEYCODE_BACK ) {
            new AlertDialog.Builder(this).setIcon(android.R.drawable.ic_dialog_alert).setTitle("Quit").setMessage("어플을 종료하시겠습니까?").setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                @Override
                public void onClick( DialogInterface dialog, int which) {
                    moveTaskToBack(true); // 본 Activity finish후 다른 Activity가 뜨는 걸 방지.
                    finish();
                    //application 프로세스를 강제 종료
                    android.os.Process.killProcess(android.os.Process.myPid() );
                }
        }).setNegativeButton( "No", null ).show();
     
        return true;
      }
       
      return super.onKeyDown(keyCode, event);
     }

}

지금까지 단계적으로 배우면서 작성한 코드에 대한 정리본인 셈이라고 볼 수도 있다.

기존 포스팅 자료에 비해 내용이 점점 보강되어간다.

폰에 있는 전화번호 읽어오기는 생각보다 처리하는 걸 고민해야 하는 거 같다.

알아야 할 지식도 더 많은 거 같아서 자바 책을 좀 들여다보고 있다.