iOS UIWebView、WKWebView获取内容高度

UIWebView 获取网页内容高度

-(void)webViewDidFinishLoad:(UIWebView *)webView
{
self.webHeight = [[webView stringByEvaluatingJavaScriptFromString:@"document.body.offsetHeight"]floatValue];

}

self.webHeight = [[webView stringByEvaluatingJavaScriptFromString:@"document.getElementById(\"content\").offsetHeight;"] floatValue];

WKWebView 获取网页内容高度

//页面加载完成之后调用
- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation {
WS(weakSelf);
[webView evaluateJavaScript:@"document.body.offsetHeight;" completionHandler:^(id _Nullable any, NSError * _Nullable error) {

NSString *heightStr = [NSString stringWithFormat:@"%@",any];

weakSelf.webHeight = heightStr.floatValue;

}

[webView evaluateJavaScript:@"document.body.scrollHeight" completionHandler:^(id _Nullable height, NSError * _Nullable error) {
NSLog(@"scrollHeight : %@",height);
}];

CGFloat webH1 = webView.scrollView.contentSize.height;

//当内容开始返回时调用
- (void)webView:(WKWebView *)webView didCommitNavigation:(WKNavigation *)navigation {
self.webHeight = webView.scrollView.contentSize.height;
}