初始化方式是否可以参考这个样子？

` +(instancetype)sharedWithImages:(NSArray *)imageNames{
      images = imageNames;
      isScrollOut = YES;
   LaunchIntroductionView *launch = [[LaunchIntroductionView alloc] initWithFrame:CGRectMake(0, 0, kScreen_width, kScreen_height)];
      launch.backgroundColor = [UIColor whiteColor];
      return launch;
  }`
