NSString *htmlString = [NSString stringWithFormat:@"<html> <head><style type=\"text/css\">body { font-family: Mehr Nastaliq Web; font-size: 22pt; white-space: pre-wrap; text-align: right; lang: ar; direction: RTL; -webkit-user-select: none; }</style> </head><body leftmargin=\"20\" topmargin=\"0\" rightmargin=\"20\" > %@ </body></html>",str];
NSAttributedString *attributedString = [[NSAttributedString alloc] initWithData: [htmlString dataUsingEncoding:NSUnicodeStringEncoding] options: @{ NSDocumentTypeDocumentAttribute:NSHTMLTextDocumentType } documentAttributes: nil error: nil];
self.txtView.attributedText=attributedString;
最佳答案
您能否在下面尝试一下，请尝试一下，让我知道它是否有效。
NSAttributedString * attributedString = [[NSAttributedString alloc] initWithData:[htmlString dataUsingEncoding:NSUTF8StringEncoding]
options:@{NSDocumentTypeDocumentAttribute:NSHTMLTextDocumentType}
documentAttributes:nil
error:nil];
如果不确定正确的编码，则应使用NSUTF8StringEncoding
更新
NSString *htmlString = @"<html><head><style type=\"text/css\">body { font-family: Mehr Nastaliq Web; font-size: 22pt; white-space: pre-wrap; text-align: right; lang: en; direction: RTL; -webkit-user-select: none; meta charset=\"UTF-8\" }</style> </head><body leftmargin=\"20\" topmargin=\"0\" rightmargin=\"20\"> مُدّعا عَنقا ہے اپنے عالَمِ تقریر کا میری تقریر کا مفہوم چونکہ عنقا یعنی معدوم ہے اور معدوم </body></html>";
NSAttributedString *attributedString = [[NSAttributedString alloc] initWithData: [htmlString dataUsingEncoding:NSUnicodeStringEncoding] options: @{ NSDocumentTypeDocumentAttribute:NSHTMLTextDocumentType } documentAttributes: nil error: nil];
_txtView.attributedText = attributedString;
它可以与 NSUnicodeStringEncoding 完美配合。
关于ios - 'NSRangeException'，原因:'***-[NSBigMutableString characterAtIndex:]:索引1258超出范围；弦长1176'，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/50363326/