NSAttributedString文本属性设置的使用

快来打我* 2022-06-13 11:52 303阅读 0赞

使用NSAttributedString可以进行个性化的文本属性显示设置。

NSAttributedString在使用时，共有多个属性可以行设置使用。

// 设置字体属性，默认值：字体：Helvetica(Neue) 字号：12
    NSFontAttributeName
    
    NSMutableAttributedString *textFont = [[NSMutableAttributedString alloc] initWithString:@"NSAttributedString设置字体大小"];
    [textFont addAttribute:NSFontAttributeName
                     value:[UIFont boldSystemFontOfSize:18.0]
                     range:[@"NSAttributedString设置字体大小" rangeOfString:@"NSAttributedString"]];

![466][]

// 设置文本段落排版格式，取值为 NSParagraphStyle 对象(详情见下面的API说明)
    NSParagraphStyleAttributeName
    
    NSMutableParagraphStyle *rowParagraph = [[NSMutableParagraphStyle alloc] init];
    rowParagraph.firstLineHeadIndent = 20;
    rowParagraph.lineSpacing = 10;
    NSMutableAttributedString *textRowSpace = [[NSMutableAttributedString alloc] initWithString:@"NSAttributedString设置字体文字间距"];
    [textRowSpace addAttribute:NSParagraphStyleAttributeName 
                         value:rowParagraph 
                         range:NSMakeRange(0, textRowSpace.string.length)];

![450][]

// 设置字体颜色，取值为 UIColor对象，默认值为黑色
    NSForegroundColorAttributeName
    
    NSMutableAttributedString *textColor = [[NSMutableAttributedString alloc] initWithString:@"NSAttributedString设置字体颜色"];
    [textColor addAttribute:NSForegroundColorAttributeName
                      value:[UIColor greenColor]
                      range:[@"NSAttributedString设置字体颜色" rangeOfString:@"NSAttributedString"]];

![463][]

// 设置字体所在区域背景颜色，取值为 UIColor对象，默认值为nil, 透明色
    NSBackgroundColorAttributeName
    
    NSMutableAttributedString *textBackColor = [[NSMutableAttributedString alloc] initWithString:@"NSAttributedString设置字体背景颜色"];
    [textBackColor addAttribute:NSBackgroundColorAttributeName
                          value:[UIColor yellowColor]
                          range:[@"NSAttributedString设置字体背景颜色" rangeOfString:@"NSAttributedString"]];

![462][]

// 设置连体属性，取值为NSNumber 对象(整数)，0 表示没有连体字符，1 表示使用默认的连体字符
    NSLigatureAttributeName

// 设置字符间距，取值为 NSNumber 对象（整数），正值间距加宽，负值间距变窄
    NSKernAttributeName
    
    NSMutableAttributedString *textSizeSpace = [[NSMutableAttributedString alloc] initWithString:@"NSAttributedString设置字体文字间距"];
    [textSizeSpace addAttribute:NSKernAttributeName
                          value:@(2)
                          range:[@"NSAttributedString设置字体文字间距" rangeOfString:@"NSAttributedString"]];

![463 1][]

// 设置删除线，取值为 NSNumber 对象（整数）
    NSStrikethroughStyleAttributeName
    
    // 设置删除线颜色，取值为 UIColor 对象，默认值为黑色
    NSStrikethroughColorAttributeName
    
    NSMutableAttributedString *textDeleteline = [[NSMutableAttributedString alloc] initWithString:@"NSAttributedString设置删除线"];
    [textDeleteline addAttribute:NSStrikethroughStyleAttributeName
                           value:@(NSUnderlineStyleSingle)
                           range:[@"NSAttributedString设置删除线" rangeOfString:@"NSAttributedString"]];
    [textDeleteline addAttribute:NSStrikethroughColorAttributeName
                           value:[UIColor blueColor]
                           range:[@"NSAttributedString设置删除线" rangeOfString:@"NSAttributedString"]];

![460][]

// 设置下划线，取值为 NSNumber 对象（整数），枚举常量 NSUnderlineStyle中的值，与删除线类似
    NSUnderlineStyleAttributeName
    
    // 设置下划线颜色，取值为 UIColor 对象，默认值为黑色
    NSUnderlineColorAttributeName
    
    NSMutableAttributedString *textUnderline = [[NSMutableAttributedString alloc] initWithString:@"NSAttributedString设置下划线"];
    [textUnderline addAttribute:NSUnderlineStyleAttributeName
                          value:@(NSUnderlineStyleSingle)
                          range:[@"NSAttributedString设置下划线" rangeOfString:@"NSAttributedString"]];
    [textUnderline addAttribute:NSUnderlineColorAttributeName
                          value:[UIColor brownColor]
                          range:[@"NSAttributedString设置下划线" rangeOfString:@"NSAttributedString"]];

![459][]

// 设置笔画宽度(粗细)，取值为 NSNumber 对象（整数），负值填充效果，正值中空效果
    NSStrokeWidthAttributeName
    
    NSMutableAttributedString *textBorderType = [[NSMutableAttributedString alloc] initWithString:@"NSAttributedString设置字体笔画样式"];
    [textBorderType addAttribute:NSStrokeWidthAttributeName
                           value:@(2)
                           range:[@"NSAttributedString设置字体笔画样式" rangeOfString:@"NSAttributedString"]];

![460 1][]

// 填充部分颜色，不是字体颜色，取值为 UIColor 对象
    NSStrokeColorAttributeName
    
    NSMutableAttributedString *textBorderColor = [[NSMutableAttributedString alloc] initWithString:@"NSAttributedString设置字体笔画颜色"];
    [textBorderColor addAttribute:NSStrokeColorAttributeName
                            value:[UIColor greenColor]
                            range:[@"NSAttributedString设置字体笔画颜色" rangeOfString:@"NSAttributedString"]];

![462 1][]

// 设置阴影属性，取值为 NSShadow 对象
    NSShadowAttributeName
    
    NSShadow *shadow = [[NSShadow alloc] init];
    shadow.shadowBlurRadius = 1;
    shadow.shadowColor = [UIColor purpleColor];
    shadow.shadowOffset = CGSizeMake(3, 3);
    //
    NSMutableAttributedString *textShadow = [[NSMutableAttributedString alloc] initWithString:@"NSAttributedString设置字体阴影"];
    [textShadow addAttribute:NSShadowAttributeName
                       value:shadow
                       range:[@"NSAttributedString设置字体阴影" rangeOfString:@"NSAttributedString"]];

![467][]

// 设置文本特殊效果，取值为 NSString 对象，目前只有图版印刷效果可用
    NSTextEffectAttributeName

// 设置基线偏移值，取值为 NSNumber （float）,正值上偏，负值下偏
    NSBaselineOffsetAttributeName
    
    NSMutableAttributedString *textOffset = [[NSMutableAttributedString alloc] initWithString:@"NSAttributedString调整基线位置"];
    [textOffset addAttribute:NSBaselineOffsetAttributeName
                       value:@(6)
                       range:[@"NSAttributedString调整基线位置" rangeOfString:@"NSAttributedString"]];

![468][]

// 设置字形倾斜度，取值为 NSNumber （float）,正值右倾，负值左倾
    NSObliquenessAttributeName
    
    NSMutableAttributedString *textObliqueness = [[NSMutableAttributedString alloc] initWithString:@"NSAttributedString设置文本斜体"];
    [textObliqueness addAttribute:NSObliquenessAttributeName
                            value:@(0.5)
                            range:[@"NSAttributedString设置文本斜体" rangeOfString:@"NSAttributedString"]];

![463 2][]

// 设置文本横向拉伸属性，取值为 NSNumber （float）,正值横向拉伸文本，负值横向压缩文本
    NSExpansionAttributeName
    
    NSMutableAttributedString *textExpansion = [[NSMutableAttributedString alloc] initWithString:@"NSAttributedString设置文本压缩"];
    [textExpansion addAttribute:NSExpansionAttributeName
                          value:@(0.5)
                          range:[@"NSAttributedString设置文本压缩" rangeOfString:@"NSAttributedString"]];

![464][]

// 设置文字书写方向，从左向右书写或者从右向左书写
    NSWritingDirectionAttributeName
    
    NSString *string = @"NSWritingDirectionAttributeName书字方向";
    NSMutableAttributedString *attibutedStr = [[NSMutableAttributedString alloc] initWithString:string];
    [attibutedStr addAttribute:NSWritingDirectionAttributeName
                         value:@[@(3)]
                         range:NSMakeRange(0, string.length)];

![433][]

// 设置文字排版方向，取值为 NSNumber 对象(整数)，0 表示横排文本，1 表示竖排文本
    NSVerticalGlyphFormAttributeName
    
    NSString *string = @"NSVerticalGlyphFormAttributeName排版方向";
    NSMutableAttributedString *attibutedStr = [[NSMutableAttributedString alloc] initWithString:string];
    [attibutedStr addAttribute:NSVerticalGlyphFormAttributeName
                         value:@(3)
                        range:NSMakeRange(0, string.length)];

![452][]

// 设置链接属性，点击后调用浏览器打开指定URL地址
    NSLinkAttributeName
    
    NSMutableAttributedString *textLink = [[NSMutableAttributedString alloc] initWithString:@"NSAttributedString设置超链接"];
    [textLink addAttribute:NSLinkAttributeName
                     value:[NSURL URLWithString:@"http://www.baidu.com"]
                     range:[@"NSAttributedString设置超链接" rangeOfString:@"NSAttributedString"]];

![462 2][]

// 设置文本附件,取值为NSTextAttachment对象,常用于文字图片混排
    NSAttachmentAttributeName
    
    NSTextAttachment *attachmentImage = [[NSTextAttachment alloc] init];
    attachmentImage.image = [UIImage imageNamed:@"image"];
    attachmentImage.bounds = CGRectMake(0, 0, 20.0, 20.0);
    NSAttributedString *attributedImage = [NSAttributedString attributedStringWithAttachment:attachmentImage];
    //
    NSMutableAttributedString *textImage = [[NSMutableAttributedString alloc] initWithString:@"NSAttributedString图文混排"];
    [textImage insertAttributedString:attributedImage atIndex:[@"NSAttributedString图文混排" rangeOfString:@"NSAttributedString"].length];

![465][]

[466]: /images/20220613/4966b68f12294a4b9c7de959724c2889.png
[450]: /images/20220613/73516576f8bb4e208e7572215d6d8c26.png
[463]: /images/20220613/ffa7fe1b86f14a54ab45c12e194e6943.png
[462]: /images/20220613/55ed570cfb2f4d5c820a3e19038c7da7.png
[463 1]: /images/20220613/9d131106450943b18e71a61f438b6fa5.png
[460]: /images/20220613/a1993fc7561a4e04a610b7ab5dcec128.png
[459]: /images/20220613/14c4bebf8e844ed3917b2dcf9efc1e39.png
[460 1]: /images/20220613/2399d9ab6ca34b19a112cdf7aecac501.png
[462 1]: /images/20220613/bf525e286d504407a0fed51d86f1034e.png
[467]: /images/20220613/c5bd74e1d3d84de2bddd05c86a3ce88b.png
[468]: /images/20220613/318dae66409b423da6ab229fcd42cadc.png
[463 2]: /images/20220613/40052a32aa064840aaec1c9c7859d82f.png
[464]: /images/20220613/ebeb2b5c12b54471b6733d96490179ee.png
[433]: /images/20220613/1e8057f5c6cc46c39e0f4cce7a039afa.png
[452]: /images/20220613/2befb3898db9452e853a82e83a5e0336.png
[462 2]: /images/20220613/986f10a773924e76909f5e3b700788a1.png
[465]: /images/20220613/442c38a479674da8bc0d58232ffdd96c.png