iOS获取WebView加载的HTML

主要通过JS来实现。

WKWebView

[webView evaluateJavaScript:@"document.getElementsByTagName('html')[0].innerHTML" completionHandler:^(id result, NSError * _Nullable error) {
    NSString *html = result;
    NSLog(@"%@", html);
}];

UIWebView

NSString *html = [self.webView stringByEvaluatingJavaScriptFromString:@"document.getElementsByTagName('html')[0].innerHTML"];