WKWebView加载PDF屏蔽长按功能弹框

// 页面加载完成之后调用
- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation{
    DebugLog(@"WKWebViewFinishNavigation");
    // 禁用长按效果
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        for (UIView *view in webView.subviews) {
            for (UIView * subview in view.subviews) {
                for (UIGestureRecognizer *gesture in subview.gestureRecognizers) {
                    if ([NSStringFromClass([gesture class]) isEqualToString:@"UILongPressGestureRecognizer"]
                        ) {
                        [subview removeGestureRecognizer:gesture];
                    }
                }
//                if ([NSStringFromClass([subview class]) isEqualToString:@"_UISizeTrackingView"]) {
//                    NSLog(@"gestureRecognizers:%@",subview.gestureRecognizers);
//
//                }
            }
        }
    });
}