获取网页中的图片

-(void)addTapOnWebView

{

    UITapGestureRecognizer* singleTap = [[UITapGestureRecognizeralloc] initWithTarget:selfaction:@selector(handleSingleTap:)];

    [self.webViewaddGestureRecognizer:singleTap];

    singleTap.delegate =self;

    singleTap.cancelsTouchesInView =NO;

}

-(void)handleSingleTap:(UITapGestureRecognizer *)sender

{

    CGPoint pt = [senderlocationInView:self.webView];

    NSString *imgURL = [NSStringstringWithFormat:@"document.elementFromPoint(%f, %f).src", pt.x, pt.y];

    NSString *urlToSave = [self.webViewstringByEvaluatingJavaScriptFromString:imgURL];

    NSLog(@"image url=%@", urlToSave);

    if (urlToSave.length >0) {

        //[selfshowImageURL:urlToSave point:pt];

    }

}