第一种:
//设置四周阴影
- (void)setShadowLayer{
self.layer.masksToBounds = false;
self.layer.shadowOffset = CGSizeMake(0, -2);//设置阴影偏移
self.layer.shadowOpacity = 阴影透明度;
self.layer.shadowRadius = 阴影弧度;
self.layer.shadowColor = 阴影颜色.CGColor;
}
第二种:
/**
设置顶边阴影
@param shadowColor 阴影颜色
@param radious 阴影圆角
@param offset 阴影偏移量
*/
- (void)setShadowLayer:(UIColor *)shadowColor shadowRadius:(CGFloat)radious shadowOffset:(CGFloat)offset{
CGSize size = self.bounds.size;
self.layer.frame = self.bounds;
self.layer.shadowOpacity = 1;
self.layer.shadowColor = shadowColor.CGColor;
self.layer.shadowOffset = CGSizeMake(0, offset);
CGRect rect = CGRectMake(-offset, offset - radious/2, size.width+2*offset, radious);
UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:rect cornerRadius:radious];
self.layer.shadowPath = path.CGPath;
}