public class GameThread extends Thread {
        SurfaceHolder  mHolder;
        int color;
        int Rc=0;
        int Gc=0;
        int Bc=0;
        //--------------------------------------
        //    Thread Constructor
        //--------------------------------------
        public GameThread(Context context, SurfaceHolder holder) {
             mHolder = holder;
        }

        //--------------------------------------
        //    Thread run
        //--------------------------------------
        public void run() {
             while (true) {
              Canvas canvas = mHolder.lockCanvas();
                 try {
                  synchronized (mHolder) {
                  Rc = getRr();
                  Gc = getGr();
                  Bc = getBr();
                   color = Color.rgb(Rc, Gc, Bc);
                   Log.e("Inside_Thread",Integer.toString(color)+"");
                     //Paint fontPaint = new Paint();
                     //fontPaint.setTextSize(15f);
                     //fontPaint.setColor(Color.RED);
                     canvas.drawColor(color);
                     //canvas.drawText(Integer.toString(count), 10, 40, fontPaint);
                  }
                 } finally {
                     if (canvas != null) {
                      mHolder.unlockCanvasAndPost(canvas);
                     }
                 }
              } // while
        } // run()

Thread run() 부분에서 외부 함수를 불러와 Thread 변수에 저장하고, 그 변수를 가지고 계속 작업하려고 합니다.
계속해서 새롭게 업데이트 되는 것을 읽어와야 하는데 도무지 새롭게 읽어오지를 않네요..무엇이 잘못된건가요?