因为解析的数据里面有html标签,就使用下面的代码把字符串转换成data,初始化时再用HTML类型,转换为富文本。
NSMutableAttributedString * attrStr = [[NSMutableAttributedString alloc] initWithData:[str dataUsingEncoding:NSUnicodeStringEncoding] options:@{ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType } documentAttributes:nil error:nil];
参数options里面的字典有三对key value
NSPlainTextDocumentType // 普通文本
NSRTFTextDocumentType // 富文本
NSRTFDTextDocumentType // 带附件的富文本
NSHTMLTextDocumentType // 这个可以加载HTML格式的文本
[NSNumber numberWithInt:NSUTF8StringEncoding]; // 不再一一列举
这个不知道对应的value是什么
属性Name | 干啥的 | 类型 |
---|---|---|
NSFontAttributeName | 字号 | UIFont 默认12 |
NSParagraphStyleAttributeName | 段落样式 | NSParagraphStyle |
NSForegroundColorAttributeName | 前景色 | UIColor |
NSBackgroundColorAttributeName | 背景色 | UIColor |
NSObliquenessAttributeName | 字体倾斜 | NSNumber |
NSExpansionAttributeName | 字体加粗 | NSNumber 比例 0就是不变 1增加一倍 |
NSKernAttributeName | 字间距 | CGFloat |
NSUnderlineStyleAttributeName | 下划线 | 1或0 |
NSUnderlineColorAttributeName | 下划线颜色 | UIColor |
NSStrikethroughStyleAttributeName | 删除线 | 1或0 |
NSStrikethroughColorAttributeName | 删除线颜色 | UIColor |
NSStrokeColorAttributeName | same as ForegroundColor | UIColor |
NSStrokeWidthAttributeName | 字体描边 | CGFloat |
NSLigatureAttributeName | 连笔字 没看出效果 | 1或0 |
NSShadowAttributeName | 阴影 | NSShawdow |
NSTextEffectAttributeName | 设置文本特殊效果,目前只有图版印刷效果可用 | NSString |
NSAttachmentAttributeName | 设置文本附件,常用插入图片 | NSTextAttachment |
NSLinkAttributeName | 链接 | NSURL (preferred) or NSString |
NSBaselineOffsetAttributeName | 基准线偏移 | NSNumber |
NSWritingDirectionAttributeName | 文字方向 分别代表不同的文字出现方向等等,我想你一定用不到它 - - | @[@(1),@(2)] |
NSVerticalGlyphFormAttributeName | 水平或者竖直文本 在iOS没卵用,不支持竖版 | 1竖直 0水平 |
解释一下其中的三个类型
段落样式主要改行距、段距、首行缩进、最大最小行高、多倍行距等十几个属性,把这些总结了你就比我更全..
NSMutableParagraphStyle *muParagraph = [[NSMutableParagraphStyle alloc]init];
muParagraph.lineSpacing = 10; // 行距
muParagraph.paragraphSpacing = 20; // 段距
muParagraph.firstLineHeadIndent = 30; // 首行缩进
就三属性,不用解释了
NSShadow *shadow = [[NSShadow alloc]init];
shadow.shadowOffset = CGSizeMake(2, 2);
shadow.shadowColor = [UIColor orangeColor];
shadow.shadowBlurRadius = 1;
这个我的也没显示出来,想钻研的看这里http://www.jianshu.com/p/5babe8b7983e
NSTextAttachment *attachment=[[NSTextAttachment alloc] initWithData:nil ofType:nil];
UIImage *img=[UIImage imageNamed:@"test.png"];
attachment.image=img;
attachment.bounds=CGRectMake(0, 0, 20, 20);
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = [UIColor grayColor];
[self.view addSubview:self.attTV];
//NSFontAttributeName 字号 UIFont 默认12
//NSParagraphStyleAttributeName 段落样式 NSParagraphStyle
//NSForegroundColorAttributeName 前景色 UIColor
//NSBackgroundColorAttributeName 背景色 UIColor
//NSObliquenessAttributeName 字体倾斜 NSNumber
//NSExpansionAttributeName 字体加粗 NSNumber 比例 0就是不变 1增加一倍
//NSKernAttributeName 字间距 CGFloat
//NSUnderlineStyleAttributeName 下划线 1或0
//NSUnderlineColorAttributeName 下划线颜色
//NSStrikethroughStyleAttributeName 删除线 1或0
//NSStrikethroughColorAttributeName 某种颜色
//NSStrokeColorAttributeName same as ForegroundColor
//NSStrokeWidthAttributeName CGFloat
//NSLigatureAttributeName 连笔字 1或0 没看出效果
//NSShadowAttributeName 阴影 NSShawdow
//NSTextEffectAttributeName 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:
//NSAttachmentAttributeName NSTextAttachment 设置文本附件,常用插入图片
//NSLinkAttributeName 链接 NSURL (preferred) or NSString
//NSBaselineOffsetAttributeName 基准线偏移 NSNumber
//NSWritingDirectionAttributeName 文字方向 @[@(1),@(2)] 分别代表不同的文字出现方向等等,我想你一定用不到它 - -
//NSVerticalGlyphFormAttributeName 水平或者竖直文本 1竖直 0水平 在iOS没卵用,不支持竖版
NSParagraphStyle *paragraph = [[NSParagraphStyle alloc]init];
NSMutableParagraphStyle *muParagraph = [[NSMutableParagraphStyle alloc]init];
muParagraph.lineSpacing = 10; // 行距
muParagraph.paragraphSpacing = 20; // 段距
muParagraph.firstLineHeadIndent = 30; // 首行缩进
NSMutableAttributedString * attrStr = [[NSMutableAttributedString alloc] initWithData:[@"asdasdflhjlfsaiollzislooa" dataUsingEncoding:NSUnicodeStringEncoding] options:@{ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType } documentAttributes:nil error:nil];
NSRange range = NSMakeRange(0, attrStr.length);
// 设置字体大小
[attrStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:30] range:range];
//字间距
[attrStr addAttribute:NSKernAttributeName value:@(2) range:range];
// 字体倾斜
[attrStr addAttribute:NSObliquenessAttributeName value:@(1) range:range];
// 字体加粗
[attrStr addAttribute:NSExpansionAttributeName value:@(0.5) range:range];
// 下划线
[attrStr addAttribute:NSUnderlineStyleAttributeName value:@(1) range:range];
[attrStr addAttribute:NSUnderlineColorAttributeName value:[UIColor blueColor] range:range];
// 删除线
[attrStr addAttribute:NSStrikethroughStyleAttributeName value:@(1) range:range];
[attrStr addAttribute:NSStrikethroughColorAttributeName value:[UIColor greenColor] range:range];
// 连体字
[attrStr addAttribute:NSLigatureAttributeName value:@(1) range:range];
// 设置颜色
[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];
// 设置段落样式
[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];
// 阴影
NSShadow *shadow = [[NSShadow alloc]init];
shadow.shadowOffset = CGSizeMake(2, 2);
shadow.shadowColor = [UIColor orangeColor];
shadow.shadowBlurRadius = 1;
[attrStr addAttribute:NSShadowAttributeName value:shadow range:range];
// 链接
[attrStr addAttribute:NSLinkAttributeName value:[NSURL URLWithString:@"http://www.jianshu.com/p/8f49c9c99b21"] range:range];
// 文字中加图片
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];
// 基准线偏移
[attrStr addAttribute:NSBaselineOffsetAttributeName value:@(50) range:range];
self.attTV.attributedText = attrStr;
}
我的效果图很磕馋