iOS中给文字添加阴影

iOS 中给文字添加阴影：

NSMutableAttributedString *attributedString=[[NSMutableAttributedString alloc]initWithString:guropName];

NSShadow *shadow = [[NSShadow alloc]init];

shadow.shadowBlurRadius = 1.0;

shadow.shadowOffset = CGSizeMake(1, 1);

shadow.shadowColor = [UIColor blackColor];

[attributedString addAttribute:NSShadowAttributeName

value:shadow

range:NSMakeRange(0, attributedString.length)];

self.labelOne.attributedText=attributedString;