给view添加单边阴影

-(void)addSingleSidesShadowToView:(UIView *)theView withColor:(UIColor*)theColor{//阴影颜色theView.layer.shadowColor &＃61; theColor.CGColor;//阴影偏移theView.layer.shadowOffset &＃61; CGSizeMake(0, theView.frame.size.height );//阴影透明度&＃xff0c;默认0theView.layer.shadowOpacity &＃61; 0.1;//阴影半径&＃xff0c;默认0.5theView.layer.shadowRadius &＃61; 1;//单边阴影CGFloat shadowPathWidth &＃61; theView.layer.shadowRadius;CGRect shadowRect &＃61; CGRectMake(10, 0-shadowPathWidth/2, theView.bounds.size.width-20, shadowPathWidth);UIBezierPath *path &＃61; [UIBezierPath bezierPathWithRect:shadowRect];theView.layer.shadowPath &＃61; path.CGPath;
}