NSAttributedString not working for UILabel after using HTML code

Question

I have UILabel and I am assigning html text as below.

m014.text = [NSString stringWithFormat:@"<html><head><style type='text/css'>body {background-color: transparent;border: 0px;margin: 0px;padding: 0px;font-family: '%@'; font-size: %fpx;;ccolor:;}</style></head><body dir='%@'>%@<style type='text/css'> iframe { width: 100%% !important; } img {width: 100%% !important; height: auto;} table {width: 100%%;}</style></body></html>", localize(@"myFontName"), @16, localize(@"myDir"), m014.text];

m014.attributedText = [[NSAttributedString alloc] initWithData: [m014.text dataUsingEncoding:NSUTF32StringEncoding] options: @{ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType } documentAttributes: nil error: nil];

In iOS 10 & below I can see normal text (plain text) however in iOS 11 & above I see html text in the app. I see html code as it is...

Any idea why this is happening?

Majorly, I feel problem is in below line.

[m014.text dataUsingEncoding:NSUTF32StringEncoding]

But I remember, I used NSUTF32StringEncoding because I was seeing encoded characters.

1. Why not use `initWithHTML:documentAttributes:` and 2. Try using `NSUTF8StringEncoding` — rmaddy, May 06 '18 at 06:47

score 0 · Answer 1 · answered May 06 '18 at 08:20

0

Did you try NSUTF8StringEncoding when converting a HTML string to NSAttributtedString?

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

answered May 06 '18 at 08:20

Rizwan Ahmed

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yes and I had issues, so went ahead with NSUTF32StringEncoding – Fahim Parkar May 06 '18 at 08:25
What issues did you have? – Rizwan Ahmed May 06 '18 at 08:36
I tried with this NSString and it worked. [NSString stringWithFormat:@"%@", _labelView.text]; Can you explain what issue you had? – Rizwan Ahmed May 06 '18 at 08:39
did you try with arabic texT? & iOS 11? – Fahim Parkar May 06 '18 at 08:56
I tried with English. I will try with arabic and let you know. – Rizwan Ahmed May 06 '18 at 08:58

score 0 · Answer 2 · answered May 06 '18 at 08:43

0

I'm using similar code in my app, but use NSUTF16StringEncoding, following the hints in some other answers, like this: NSAttributedString initWithHTML incorrect character encoding?.

answered May 06 '18 at 08:43

Gereon

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Fahim Parkar · Accepted Answer · 2018-05-06T18:07:08.397

0

Thanks to @rmaddy for an answer in comment.

Update code I used is as below.

m014.attributedText = [[NSMutableAttributedString alloc] initWithHTML:
    [m014.text dataUsingEncoding:NSUTF8StringEncoding] 
    options: @{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType, 
    NSCharacterEncodingDocumentAttribute: @(NSUTF8StringEncoding)} 
    documentAttributes:nil];

edited May 06 '18 at 18:07

answered May 06 '18 at 17:37

Fahim Parkar

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NSAttributedString not working for UILabel after using HTML code

3 Answers3