FilterHtml
过滤html中的标签,比如img等
demo例子:过滤H5中的img标签,并获取点击的img地址:
1. 在页面中查找img标签
-(NSArray*)filterImgInHtmlString:(NSString*)htmlContent {
TFHpple *doc = [[TFHpple alloc] initWithHTMLString:htmlContent];
NSArray *images = [doc searchWithXPathQuery:@"//img"];
NSString *imgUrl = nil;
NSMutableArray *imgUrlArray = [NSMutableArray array];
for (int i = 0; i < [images count]; i++)
{
imgUrl = [[images objectAtIndex:i] objectForKey:@"src"];
[imgUrlArray addObject:imgUrl];
}
return imgUrlArray;
}
2.根据点击事件的坐标获取img标签
-(void)webViewTap:(UIGestureRecognizer*)sender
{
CGPoint pt = [sender locationInView:theWebView];
NSLog(@"handleSingleTap!pointx:%f,y:%f",pt.x,pt.y);
NSString *js = [NSString stringWithFormat:@"document.elementFromPoint(%f, %f).tagName", pt.x, pt.y];
NSString * tagName = [theWebView stringByEvaluatingJavaScriptFromString:js];
if ([tagName length] > 0 && [[tagName lowercaseString] isEqualToString:@"img"])
{
NSString *imgURL = [NSString stringWithFormat:@"document.elementFromPoint(%f,%f).src", pt.x, pt.y];
NSString *urlYouTap = [theWebView stringByEvaluatingJavaScriptFromString:imgURL];
NSLog(@"你点击的图片地址是:%@",urlYouTap);
}
}
3.效果
