How can load an html page on iPhone webView without tag

Question

I load a html page in web view in this way:

NSString *description = [NSString stringWithContentsOfURL:[NSURL URLWithString:@"http://www.mypage.html"] encoding:NSUTF8StringEncoding error:nil];
[self.webView loadHTMLString:pRova baseURL:nil];

I need to remove:

<img src="http://www.mypage/image" align="left" style="padding: 0px 10px 0px 0px; width: 301px; height: 280px;" alt="diaspora-uys" />

from NSString *description, to display the UIwebView without image and with only text. How can i do this?

Sorry, i mean, i want load this page: http://www.abstract.it/news/diaspora-lopen-source-che-cambiera-la-rete/getText in uiwebview without display image — Claudio, Nov 17 '10 at 12:41

score 3 · Answer 1 · edited Oct 27 '11 at 08:52

I solved in this way:

- (NSString *)flattenHTML:(NSString *)html {
    NSScanner *theScanner;
    NSString *gt =nil;

    theScanner = [NSScanner scannerWithString:html];

    while ([theScanner isAtEnd] == NO) {
        // find start of tag
        [theScanner scanUpToString:@"<img" intoString:NULL] ; 

        // find end of tag
        [theScanner scanUpToString:@">" intoString:&gt] ;
    }

    html = [html stringByReplacingOccurrencesOfString:[ NSString stringWithFormat:@"%@>", gt] withString:@""];
    return html;
}

score 0 · Answer 2 · answered Jul 24 '12 at 09:08

I have modified the code and it's working perfectly. It will only remove src value. Remaining values and image tag are not modified

- (NSString *)flattenHTML:(NSString *)html {
    NSScanner *theScanner;
    NSString *gt = nil;
    NSString *temp = nil;
    theScanner = [NSScanner scannerWithString:html];

    while ([theScanner isAtEnd] == NO) {
        // find start of tag
        [theScanner scanUpToString:@"<img" intoString:&temp]; 

        //find the src tag
        [theScanner scanUpToString:@"src" intoString:&temp]; 

        [theScanner scanUpToString:@"=" intoString:&temp];

        [theScanner scanUpToString:@" " intoString:&gt];
        if (!gt) {
            [theScanner scanUpToString:@">" intoString:&gt];    
        }

        if (gt) {
            html = [html stringByReplacingOccurrencesOfString:[NSString stringWithFormat:@"%@",gt] withString:@"=\"\""];    
        }
    }

    return html;
}

Francois · Accepted Answer · 2010-11-17T12:52:59.337

0

1/ load the HTML content in a string

+(id)stringWithContentsOfURL:(NSURL *)url encoding:(NSStringEncoding)enc error:(NSError **)

2/ remove the <img /> tag in the string

3/ use loadHTMLString on you webView

Have a look at NSString reference

Instead of finding the <img /> tag in the HTML string, you can also perform a replace of <img by <img style='display:none;' to hide the image. But it will be still loaded...

edited Nov 17 '10 at 12:52

answered Nov 17 '10 at 12:47

Francois

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You mean something like that: NSString *descrizione = [NSString stringWithContentsOfURL:[NSURL URLWithString:@"html page"] encoding:NSUTF8StringEncoding error:nil]; NSString *example = [example stringByReplacingOccurrencesOfString:[NSString stringWithFormat:@""] withString:@""]; [self.webView loadHTMLString:descrizione baseURL:nil]; – Claudio Nov 17 '10 at 13:27
It looks good to me except the replace of ``. With your code, you will end with a broken HTML code. By `` I was meaning the full ``. That's this complete tag that you need to skip. – Francois Nov 17 '10 at 17:49

score 0 · Answer 4 · edited May 23 '17 at 12:00

0

check that to apply filter on url scheme : Need to filter certain UIWebView requests and load them in different UIWebViews

edited May 23 '17 at 12:00

Community

1
1

answered Nov 17 '10 at 13:27

Christophe Debove

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How can load an html page on iPhone webView without tag

4 Answers4