ios - How to check UIWebView URL is file or not -


i have in app uiwebview safari need share web url.

i using code:

- (ibaction)sharelink:(id)sender {     nsurl *newsurl = mywebview.request.url;  // 1. url = http://www.alhikmeh.org/news/archives/43645         // 2. other url = http://www.alhikmeh.org/news/wp-content/uploads/2015/04/24-4-2015-9d.jpg       if ([newsurl isfilereferenceurl]) {         nsdata *data = [nsdata datawithcontentsofurl:newsurl];         uiimage *image = [uiimage imagewithdata:data];          uiactivityviewcontroller *avc = [[uiactivityviewcontroller alloc]                        initwithactivityitems:@[image] applicationactivities:nil];         [avc setrestorationidentifier:@"activity"];         [self.navigationcontroller presentviewcontroller:avc animated:yes completion:nil];         nslog(@"file");      } else {         arsafariactivity *safariactivity = [[arsafariactivity alloc] init];         uiactivityviewcontroller *avc = [[uiactivityviewcontroller alloc]                         initwithactivityitems:@[self.newstitle, newsurl] applicationactivities:@[safariactivity]];         [avc setrestorationidentifier:@"activity"];         [self.navigationcontroller presentviewcontroller:avc animated:yes completion:nil];         nslog(@"not file");     }    } 

i using also: [newsurl isfileurl]

but both not working, can help?