Thursday, February 25, 2010

How to Disable UIWebView Selection

You could do this by running a short javaScript line at webViewDidFinishLoad, but I find this more elegant: define UIWebView properties in CSS.
NSString *myHtml = [NSString stringWithFormat:
   @"<html><head>"
   "<style type=\"text/css\">"
   // Disable Open/Copy/Cancel alert with long link selection
   "* {"
   "-webkit-touch-callout: none;"
   // Disable selection/Copy of UIWebView
   "-webkit-user-select: none;"
   "}"
   ",</style>"
   "</head><body>%@</body></html>", message.body];
[myWebView loadHTMLString:myHtml baseURL:nil];
As a bonus I left there also how to disable link selection popup.
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11 comments:

  1. KalleAugust 23, 2010 at 5:55 PM

    Thanks! Was trying to find a way to do exactly this, and it works perfectly. :)

    ReplyDelete
  2. AnonymousJanuary 12, 2011 at 11:25 AM

    Need Help !! , how do i enable copy on the UIwebview ,As I am not getting the copy option by holding the tap with a PDF Opened in the UIWebview, any kinda help would be highly appreciated , thanks

    ReplyDelete
  3. jouni miettunenJanuary 13, 2011 at 6:07 AM

    Coincident, but one of the apps I'm doing now shows PDF files inside UIWebView. It doesn't offer text selection either, didn't have to disable it.

    Guess "PDF inside UIWebView" does not support copy & paste. If you want to have full control over PDF content, check SDK manual for "PDF". There are lots of lower level routines to do a lot of things. Might get complicated, though. Good luck!

    ReplyDelete
  4. Aruna LakmalApril 12, 2011 at 10:58 AM

    Thank you very much for this post. It worked for me.

    ReplyDelete
  5. ̶T̶̶รน̶̶n̶̶g̶September 20, 2011 at 11:50 AM

    Thanks, you saved my day.

    ReplyDelete
  6. NileshOctober 3, 2011 at 8:21 AM

    After adding it i am not able to scroll through the page it is calling - (void)webViewDidFinishLoad:(UIWebView *)webView again and again

    ReplyDelete
  7. jouni miettunenOctober 4, 2011 at 6:16 AM

    Don't think CSS could make your app to call webViewDidFinishLoad in a loop... However I've seen that with complex webpages containing lots of e.g. images. All are loaded separately and each will call webViewDidFinishLoading. Your task is to keep track of when "original" document load is completed. Btw tip: test your code with simple text-only webpage to make sure it works. Start simple, go complex after that.

    ReplyDelete
  8. YogiOctober 19, 2011 at 3:57 PM

    It is working till iOS 4.2 but not on 4.3
    Any way to do it in 4.3?

    ReplyDelete
  9. AartiFebruary 7, 2012 at 1:50 PM

    I am using the same in my app, but I am not getting what is massage.body, If anybody has an idea please let me know

    ReplyDelete
  10. jouni miettunenFebruary 8, 2012 at 8:17 AM

    message.body is a local variable containing whatever text I want to display on that dynamically created web page. You can replace it with e.g. @"Sample text".

    ReplyDelete