SQLite를 이용해서  승패를 보여주기만 하는 View Class 와  
DB관련 일만 하는 DBScore 라는 Class가 있습니다.

그런데 View Class에서   DBScore에서 리턴되는 String 값을 받지를 못하네요. 

int 값들은  return 해준 값을 제대로 받아오는데.. String 값만 제대로 받아오지 못합니다..
혹시나 해서,   int 값들을 모조리 String 형식으로 바꾼다음   View Class에서  받아오려니 ... 모두 Null 가리키더군요.. 


점수보여주는 ScoreView 클래스입니다.

public class ScoreView extends Activity {

 private rps_media BGMplay;
 private ScoreDB score;
 private TextView UserTextView,WinTextView,LoseTextView,DrawTextView;
 public void onCreate(Bundle savedInstanceState){
   super.onCreate(savedInstanceState);
   requestWindowFeature(Window.FEATURE_NO_TITLE);
   setContentView(R.layout.score_layout);
   
   BGMplay=new rps_media(this);
   BGMplay.PlaySoundTrack(this,5);
   
   score=new ScoreDB();
   
   //Create TextView
   UserTextView=(TextView)this.findViewById(R.id.UserID);
   WinTextView=(TextView)this.findViewById(R.id.WinID);
   LoseTextView=(TextView)this.findViewById(R.id.LoseID);
   DrawTextView=(TextView)this.findViewById(R.id.DrawID);
   
   //ReadTextScore();
  // Log.i("jjjj", "username value : "+score.getUserName());
   UserTextView.setText(score.getUserName());
   WinTextView.setText(String.valueOf(score.getWinScore()));
   LoseTextView.setText(String.valueOf(score.getLoseScore()));
   DrawTextView.setText(String.valueOf(score.getDrawScore()));
  }
 
 
 public boolean onKeyDown(int keyCode, KeyEvent event){
  if(keyCode==KeyEvent.KEYCODE_BACK){
   BGMplay.stopSound();
   Intent intent=new Intent(this, com.claner.rps_main.class);
   intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
   startActivity(intent);
  }
  return true;
 }
 
 
}//End of Class

DB 관련 일만하는 DBScore 입니다.

public class ScoreDB extends Activity {
 private final static String DB_NAME = "score.db";
 private final static String DB_TABLE="rps";
 private final static int DB_VERSION=1;
 private SQLiteDatabase db;
 private static int w,l,d;
 private static String namestr;
 
 //Initiate
 public void onCreate(Bundle SavedInstanceState){
  super.onCreate(SavedInstanceState);
  
  //Create DB 
  DBHelper dbHelper=new DBHelper(this);
  db=dbHelper.getWritableDatabase();
 }
 
 

 //Score Initiate 
 public void SetScoreInit(){
  try{
   writeDB("User",0,0,0);
  }catch (Exception e){
  }
 }
 
 
 //Set Name
 public void SetName(String name){
  try{
   writeDB(name,w,l,d);
  }catch (Exception e){
  }
 }
 
 
 
 
 //Set Score
 public void SetScore(int GameResult){
  if(GameResult==0){    //Draw
   d=getDrawScore()+1;
   try{
    writeDB("user",w,l,d);
   }catch (Exception e){
   }
  }else if(GameResult==1){ //Win
   w=getWinScore()+1;
   try{
    writeDB("user",w,l,d);
   }catch (Exception e){
   }
  }else {      //Lose
   l=getLoseScore()+1;
   try{
    writeDB("user",w,l,d);
   }catch (Exception e){
   }
  }
 }
 
 
 //Get Score,Name
  public String getUserName(){
   try{
    readDB();
   }catch(Exception e){
   }
   return namestr; 
  }
  
  public int getWinScore(){
   try{
    readDB();
   }catch (Exception e){
   }
   return w;
  }
  
  public int getLoseScore(){
   try{
    readDB();
   }catch (Exception e){
   }
   return l;
  }
  
  public int getDrawScore(){
   try{
    readDB();
   }catch(Exception e){
   }
   return d;
  }
 
 
 //Write DataBase
 private void writeDB(String Username1, int win, int lose, int draw)throws Exception{
  
  ContentValues values=new ContentValues();
  values.put("DB_ID",0);
  values.put("USERNAME",Username1);
  values.put("WIN", win);
  values.put("LOSE",lose);
  values.put("DRAW",draw);
  
  long colNum=db.update(DB_TABLE,values,null,null);
  if(colNum==0) db.insert(DB_TABLE, "",values);
 }
 
 
 
 //DB Read
 private void readDB() throws Exception{
  Cursor c=db.query(DB_TABLE,new String[]{"DB_ID", "USERNAME", "WIN", "LOSE", "DRAW"}, null, null, null, null, null);
    
  if(c.getCount()==0) throw new Exception();
     
  c.moveToFirst();
  
  namestr=c.getString(0);
  w=c.getInt(1);
  l=c.getInt(2);
  d=c.getInt(3);
  c.close();
 }
 
 
 //DataBase Helper
 private static  class DBHelper extends SQLiteOpenHelper{
  //DB Helper
  public DBHelper (Context context){
   super(context, DB_NAME, null, DB_VERSION);
  }
  
  //DB Create
  public void onCreate(SQLiteDatabase db){
   db.execSQL("create table if not exists " + DB_TABLE + "(DB_ID primary key,USERNAME TEXT, WIN INTEGER, LOSE INTEGER, DRAW INTEGER )");
  }
  
  //DB Upgrade
  public void onUpgrade (SQLiteDatabase db, int oldVersion, int newVersion){
   db.execSQL("drop table if exists " + DB_TABLE );
   onCreate(db);
  }//End of onUpgrade
 
 }//End of DBHelper
 
 
}//End of Class

원래. String 값을  다른 Class 에서 받아오질 못한다면..   이 2개를 합쳐야 할까요...?