Sampel of flixel bitmap cache usage

gistfile1.hx

  private static function getSpriteImpl(filename : String, width : Float,
      resize : IResizeBitmapData) : FlxSprite
  {
    var key = resize.key(filename, width);
    if(!FlxG.bitmap.checkCache(key))
    {
      if(cacheWarning)
      {
        trace([filename, key, "Not found"]);
      }

      var b = resize.bitmap(filename, width);
      if(b != null)
      {
        var cachedGraphics = FlxG.bitmap.add(b, true, key);
        cachedGraphics.persist = true;
      }
    }

    var s = new FlxSprite(0, 0);
    return s.loadGraphic(key, false, false, 0, 0, false, key);
  }