正如标题所示，现在我可以使用initWithHTML简单地将HTML转换为NSAttributedString：documentAttributes：但是我想在这里做的是相反的。
有没有第三方图书馆来实现呢？
有没有第三方图书馆来实现呢？
@implementation NSAttributedString(HTML)
-(NSString *)htmlForAttributedString{
NSArray * exclude = [NSArray arrayWithObjects:@"doctype",@"html",@"head",@"body",@"xml",nil
];
NSDictionary * htmlAtt = [NSDictionary
dictionaryWithObjectsAndKeys:NSHTMLTextDocumentType,NSDocumentTypeDocumentAttribute,exclude,NSExcludedElementsDocumentAttribute,nil
];
NSError * error;
NSData * htmlData = [self dataFromRange:NSMakeRange(0,[self length])
documentAttributes:htmlAtt error:&error
];
//NSAttributedString * htmlString = [[NSAttributedString alloc]initWithHTML:htmlData documentAttributes:&htmlAtt];
NSString * htmlString = [[NSString alloc] initWithData:htmlData encoding:NSUTF8StringEncoding];
return htmlString;
}
@end
解决方法
使用dataFromRange：documentAttributes：将文档类型属性(NSDocumentTypeDocumentAttribute)设置为HTML(NSHTMLTextDocumentType)：
NSAttributedString *s = ...;
NSDictionary *documentAttributes = @{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType};
NSData *htmlData = [s dataFromRange:NSMakeRange(0,s.length) documentAttributes:documentAttributes error:NULL];
NSString *htmlString = [[NSString alloc] initWithData:htmlData encoding:NSUTF8StringEncoding];