Core Text to render HTML content

Question

I was wondering if is there a way to render html content using core text, because the common UIWebView is slow as hell to load up.

I've got very basic needs:
- reading p tags
- reading span tags
- using colors
- using fonts and sizes

that's all.

thanks you so much!
k

score 2 · Accepted Answer · answered Feb 15 '11 at 15:18

2

ok I solved this in a bit tricky way.
I implemented a HTMLParser to extract the characters that I needed to be formatted in a different way. than I proceeded to use the string in Core-Text.

my references were

[HTMLParser] https://github.com/zootreeves/Objective-C-HMTL-Parser
remember that this one has a problem by parsing two tags one after another
(e.g. < p >< span >. . . < /span >< /p >)

[kickstart for CoreText] https://github.com/jonasschnelli/I7CoreTextExample

answered Feb 15 '11 at 15:18

holographix

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As per your instruction its working fine,But here i have a epub file which has bunch of html file, how could i load it in this could you help me – dineshprasanna Mar 19 '13 at 12:31
how did you manage to display images and check the css directory and map the styles ? – Arunavh Krishnan Feb 17 '15 at 07:08

score 1 · Answer 2 · edited Feb 05 '12 at 07:36

1

See this open-source project: https://github.com/Cocoanetics/DTCoreText

It won't help you render an attributed string with Core Text, but it will help you convert HTML to an NSAttributedString.

edited Feb 05 '12 at 07:36

Remy Vanherweghem

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answered Feb 14 '11 at 16:01

Ole Begemann

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score 0 · Answer 3 · edited May 23 '17 at 12:31

This question has already been answered better here:

https://stackoverflow.com/a/18886718/187258

No need to use DTCoreText if you're targeting iOS 7 and up (which you should be doing, by now).

Here's a reprint of the code in the answer (important flag: NSHTMLTextDocumentType):

[[NSAttributedString alloc] initWithData:[htmlString dataUsingEncoding:NSUTF8StringEncoding] 
                                 options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType,
                                           NSCharacterEncodingDocumentAttribute: @(NSUTF8StringEncoding)} 
                      documentAttributes:nil 
                                   error:nil];

Core Text to render HTML content

3 Answers3