如何在android中修复画布的宽度

Question

我正在构建一个游戏，其显示的级别编号来自level.txt。但是，我无法获得正确的宽度，以便在屏幕上显示级别编号。以下代码块显示了级别编号的代码：

 private void drawLevelNumber(Canvas canvas)
    {
      int y = 433;
      int x;
      int level = mLevelManager.getLevelIndex() + 1;
      if (level < 10) {
        x = 185;
        mFont.paintChar(Character.forDigit(level, 10), x, y, canvas,
                        mDisplayScale, mDisplayDX, mDisplayDY);
      } else if (level < 100) {
        x = 178;
        x += mFont.paintChar(Character.forDigit(level / 10, 10), x, y, canvas,
                             mDisplayScale, mDisplayDX, mDisplayDY);
        mFont.paintChar(Character.forDigit(level % 10, 10), x, y, canvas,
                        mDisplayScale, mDisplayDX, mDisplayDY);
      } else {
        x = 173;
        x += mFont.paintChar(Character.forDigit(level / 100, 10), x, y, canvas,
                             mDisplayScale, mDisplayDX, mDisplayDY);
        level -= 100 * (level / 100);
        x += mFont.paintChar(Character.forDigit(level / 10, 10), x, y, canvas,
                             mDisplayScale, mDisplayDX, mDisplayDY);
        mFont.paintChar(Character.forDigit(level % 10, 10), x, y, canvas,
                        mDisplayScale, mDisplayDX, mDisplayDY);
      }
    }

我知道如何修复显示级别编号的宽度吗？

谢谢！ 贾斯汀