阴影

• (void)createTitleMenuView
  {
  _titleMenuView = [[UIView alloc] initWithFrame:CGRectMake(YGScreenWidth/2-60, -80, 120, 80)];
  //阴影
  UIBezierPath *shadowPath = [UIBezierPath bezierPathWithRect:_titleMenuView.bounds];
  _titleMenuView.layer.masksToBounds = NO;
  _titleMenuView.layer.shadowColor = [UIColor blackColor].CGColor;
  _titleMenuView.layer.shadowOffset = CGSizeMake(3.0f, 3.0f);
  _titleMenuView.layer.shadowOpacity = 0.4f;
  _titleMenuView.layer.shadowRadius = 8;
  _titleMenuView.layer.shadowPath = shadowPath.CGPath;

  NSArray *array = @[@"筹集中",@"已完成"];
  for (int i = 0; i<2; i++) {
  UIButton coverButton = [[UIButton alloc]initWithFrame:CGRectMake(0,40i,120,40)];
  coverButton.tag = 1000+i;
  [coverButton addTarget:self action:@selector(changeStatesBtnAction:) forControlEvents:UIControlEventTouchUpInside];
  coverButton.titleLabel.font = [UIFont systemFontOfSize:YGFontSizeBigOne];
  [coverButton setTitleColor:colorWithBlack forState:UIControlStateNormal];
  [coverButton setTitleColor:colorWithMainColor forState:UIControlStateSelected];
  [coverButton setTitle:array[i] forState:UIControlStateNormal];
  [_titleMenuView addSubview:coverButton];
  }
  _titleMenuView.backgroundColor = colorWithYGWhite;
  self.titleMenuView.alpha = _titleButton.isSelected;
  [self.view addSubview:_titleMenuView];
  UIButton *coverButton = [_titleMenuView viewWithTag:1000];
  coverButton.selected = YES;

}