iOS富文本(NSAttributedString)

富文本的所有屬性

NSFontAttributeName  字號 UIFont 默認12
NSParagraphStyleAttributeName   段落樣式    NSParagraphStyle
NSForegroundColorAttributeName  前景色 UIColor
NSBackgroundColorAttributeName  背景色 UIColor
NSObliquenessAttributeName  字體傾斜    NSNumber
NSExpansionAttributeName    字體加粗    NSNumber 比例 0就是不變 1增加一倍
NSKernAttributeName 字間距 CGFloat
NSUnderlineStyleAttributeName   下劃線 1或0
NSUnderlineColorAttributeName   下劃線顏色   UIColor
NSStrikethroughStyleAttributeName   刪除線 1或0
NSStrikethroughColorAttributeName   刪除線顏色   UIColor
NSStrokeColorAttributeName  same as ForegroundColor UIColor
NSStrokeWidthAttributeName  字體描邊    CGFloat
NSLigatureAttributeName 連筆字 沒看出效果   1或0
NSShadowAttributeName   陰影  NSShawdow
NSTextEffectAttributeName   設置文本特殊效果,目前只有圖版印刷效果可用   NSString
NSAttachmentAttributeName   設置文本附件,常用插入圖片   NSTextAttachment
NSLinkAttributeName 鏈接  NSURL (preferred) or NSString
NSBaselineOffsetAttributeName   基準線偏移   NSNumber
NSWritingDirectionAttributeName 文字方向 分別代表不同的文字出現(xiàn)方向等等，我想你一定用不到它 - -  @[@(1),@(2)]
NSVerticalGlyphFormAttributeName    水平或者豎直文本 在iOS沒卵用总珠，不支持豎版  1豎直 0水平

段落樣式
段落樣式主要改行距、段距勘纯、首行縮進、最大最小行高钓瞭、多倍行距等十幾個屬性

    NSMutableParagraphStyle *muParagraph = [[NSMutableParagraphStyle alloc]init];
    muParagraph.lineSpacing = 10; // 行距
    muParagraph.paragraphSpacing = 20; // 段距
    muParagraph.firstLineHeadIndent = 30; // 首行縮進

陰影

    NSShadow *shadow = [[NSShadow alloc]init];
    shadow.shadowOffset = CGSizeMake(2, 2);
    shadow.shadowColor = [UIColor orangeColor];
    shadow.shadowBlurRadius = 1;

我的富文本代碼驳遵，可以copy過去直接試

- (void)viewDidLoad {
    [super viewDidLoad];

    self.view.backgroundColor = [UIColor grayColor];
    [self.view addSubview:self.attTV];

    //NSFontAttributeName   字號 UIFont 默認12
    //NSParagraphStyleAttributeName    段落樣式  NSParagraphStyle
    //NSForegroundColorAttributeName    前景色   UIColor
    //NSBackgroundColorAttributeName    背景色   UIColor
    //NSObliquenessAttributeName        字體傾斜     NSNumber
    //NSExpansionAttributeName          字體加粗     NSNumber  比例 0就是不變 1增加一倍
    //NSKernAttributeName               字間距   CGFloat
    //NSUnderlineStyleAttributeName     下劃線     1或0
    //NSUnderlineColorAttributeName     下劃線顏色
    //NSStrikethroughStyleAttributeName 刪除線   1或0
    //NSStrikethroughColorAttributeName 某種顏色
    //NSStrokeColorAttributeName        same as ForegroundColor
    //NSStrokeWidthAttributeName        CGFloat
    //NSLigatureAttributeName           連筆字  1或0  沒看出效果
    //NSShadowAttributeName             陰影    NSShawdow
    //NSTextEffectAttributeName          設置文本特殊效果，取值為 NSString 對象山涡，目前只有圖版印刷效果可用：
    //NSAttachmentAttributeName         NSTextAttachment  設置文本附件,常用插入圖片
    //NSLinkAttributeName               鏈接  NSURL (preferred) or NSString
    //NSBaselineOffsetAttributeName     基準線偏移   NSNumber

    //NSWritingDirectionAttributeName   文字方向     @[@(1),@(2)]  分別代表不同的文字出現(xiàn)方向等等堤结，我想你一定用不到它 - -
    //NSVerticalGlyphFormAttributeName  水平或者豎直文本  1豎直 0水平 在iOS沒卵用，不支持豎版

    NSParagraphStyle *paragraph = [[NSParagraphStyle alloc]init];
    NSMutableParagraphStyle *muParagraph = [[NSMutableParagraphStyle alloc]init];
    muParagraph.lineSpacing = 10; // 行距
    muParagraph.paragraphSpacing = 20; // 段距
    muParagraph.firstLineHeadIndent = 30; // 首行縮進


    NSMutableAttributedString * attrStr = [[NSMutableAttributedString alloc] initWithData:[@"asdasdflhjlfsaiollzislooa" dataUsingEncoding:NSUnicodeStringEncoding] options:@{ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType } documentAttributes:nil error:nil];


    NSRange range = NSMakeRange(0, attrStr.length);
    // 設置字體大小
    [attrStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:30] range:range];
    //字間距
    [attrStr addAttribute:NSKernAttributeName value:@(2) range:range];
    // 字體傾斜
    [attrStr addAttribute:NSObliquenessAttributeName value:@(1) range:range];
    // 字體加粗
    [attrStr addAttribute:NSExpansionAttributeName value:@(0.5) range:range];
    // 下劃線
    [attrStr addAttribute:NSUnderlineStyleAttributeName value:@(1) range:range];
    [attrStr addAttribute:NSUnderlineColorAttributeName value:[UIColor blueColor] range:range];
    // 刪除線
    [attrStr addAttribute:NSStrikethroughStyleAttributeName value:@(1) range:range];
    [attrStr addAttribute:NSStrikethroughColorAttributeName value:[UIColor greenColor] range:range];

    // 連體字
    [attrStr addAttribute:NSLigatureAttributeName value:@(1) range:range];


    // 設置顏色
    [attrStr addAttribute:NSForegroundColorAttributeName value:[UIColor colorWithRed:0.942 green:0.611 blue:0.771 alpha:1.000] range:range];
    // 背景色
    [attrStr addAttribute:NSBackgroundColorAttributeName value:[UIColor colorWithRed:0.475 green:0.482 blue:0.942 alpha:1.000] range:range];

    // stroke
    [attrStr addAttribute:NSStrokeColorAttributeName value:[UIColor blueColor] range:range];
    [attrStr addAttribute:NSStrokeWidthAttributeName value:@(2) range:range];

    // 設置段落樣式
    [attrStr addAttribute:NSParagraphStyleAttributeName value:muParagraph range:range];

    // 文本方向
    [attrStr addAttribute:NSVerticalGlyphFormAttributeName value:@(1) range:range];
    [attrStr addAttribute:NSWritingDirectionAttributeName value:@[@(2),@(3)] range:range];


    // 陰影
    NSShadow *shadow = [[NSShadow alloc]init];
    shadow.shadowOffset = CGSizeMake(2, 2);
    shadow.shadowColor = [UIColor orangeColor];
    shadow.shadowBlurRadius = 1;
    [attrStr addAttribute:NSShadowAttributeName value:shadow range:range];

    // 鏈接
    [attrStr addAttribute:NSLinkAttributeName value:[NSURL URLWithString:@"http://www.reibang.com/p/8f49c9c99b21"] range:range];

    // 文字中加圖片
    NSTextAttachment *attachment=[[NSTextAttachment alloc] initWithData:nil ofType:nil];

    UIImage *img=[UIImage imageNamed:@"test.png"];
    attachment.image=img;
    attachment.bounds=CGRectMake(0, 0, 20, 20);
    [attrStr addAttribute:NSAttachmentAttributeName value:attachment range:range];

    // 基準線偏移
    [attrStr addAttribute:NSBaselineOffsetAttributeName value:@(50) range:range];

    self.attTV.attributedText = attrStr;