#import "ViewController.h" @interface ViewController () @end @implementation ViewController - (void)viewDidLoad { [super viewDidLoad]; UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(20, 84, self.view.frame.size.width-40, self.view.frame.size.height-84-20)]; label.text = @"春种一粒粟，秋成万颗子。\n四海无闲田，农夫犹饿死。\n锄禾日当午，汗滴禾下土。\n谁知盘中餐，粒粒皆辛苦。"; [self.view addSubview:label]; NSRange rangeOne = [label.text rangeOfString:@"春种一粒粟"]; NSRange rangeTwo = [label.text rangeOfString:@"秋成万颗子"]; NSRange rangeThree = [label.text rangeOfString:@"四海无闲田"]; NSRange rangeFour = [label.text rangeOfString:@"农夫犹饿死"]; NSRange rangeFive = [label.text rangeOfString:@"锄禾日当午"]; NSRange rangeSix = [label.text rangeOfString:@"汗滴禾下土"]; NSRange rangeSeven = [label.text rangeOfString:@"谁知盘中餐"]; NSRange rangeEight = [label.text rangeOfString:@"粒粒皆辛苦"]; NSMutableAttributedString *attributedLabel = [[NSMutableAttributedString alloc] initWithString:label.text]; //字体 [attributedLabel addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:18] range:NSMakeRange(0, label.text.length)]; //段落 NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init]; paragraphStyle.lineSpacing = 20; //行间距 paragraphStyle.alignment = NSTextAlignmentCenter; [attributedLabel addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, label.text.length)]; //字体颜色 [attributedLabel addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(rangeOne.location, rangeOne.length)]; //字体底色 [attributedLabel addAttribute:NSBackgroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(rangeTwo.location, rangeTwo.length)]; //删除线 [attributedLabel addAttribute:NSStrikethroughStyleAttributeName value:[NSNumber numberWithInt:3] range:NSMakeRange(rangeThree.location, rangeThree.length)]; [attributedLabel addAttribute:NSStrikethroughColorAttributeName value:[UIColor redColor] range:NSMakeRange(rangeThree.location, rangeThree.length)]; //下划线 [attributedLabel addAttribute:NSUnderlineStyleAttributeName value:[NSNumber numberWithInt:1] range:NSMakeRange(rangeFour.location, rangeFour.length)]; [attributedLabel addAttribute:NSUnderlineColorAttributeName value:[UIColor redColor] range:NSMakeRange(rangeFour.location, rangeFour.length)]; //文字间距 [attributedLabel addAttribute:NSKernAttributeName value:[NSNumber numberWithInt:5] range:NSMakeRange(rangeFive.location, rangeFive.length)]; //字体倾斜(正值右倾，负值左倾) [attributedLabel addAttribute:NSObliquenessAttributeName value:[NSNumber numberWithFloat:0.5] range:NSMakeRange(rangeSix.location, rangeSix.length)]; //笔画宽度(正值中空，负值填充) [attributedLabel addAttribute:NSStrokeWidthAttributeName value:[NSNumber numberWithFloat:1] range:NSMakeRange(rangeSeven.location, rangeSeven.length)]; //填充颜色 [attributedLabel addAttribute:NSStrokeColorAttributeName value:[UIColor redColor] range:NSMakeRange(rangeSeven.location, rangeSeven.length)]; //阴影效果 NSShadow *shadow = [[NSShadow alloc] init]; shadow.shadowColor = [UIColor redColor]; shadow.shadowOffset = CGSizeMake(2, 2); shadow.shadowBlurRadius = 2; [attributedLabel addAttribute:NSShadowAttributeName value:shadow range:NSMakeRange(rangeEight.location, rangeEight.length)]; //自适应高 label.numberOfLines = 0; CGRect labelStringRect = [attributedLabel boundingRectWithSize:CGSizeMake(self.view.frame.size.width-label.frame.origin.x*2, 9999) options:NSStringDrawingUsesLineFragmentOrigin context:nil]; CGRect labelRect = label.frame; labelRect.size.height = labelStringRect.size.height; label.frame = labelRect; label.attributedText = attributedLabel; }
效果图如下：
