- (void)addWKWebView

{

    _webView = [[WKWebView alloc] initWithFrame:CGRectMake(, , SCREEN_WIDTH, 0.1)];

    [_webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:_activityModel.shareLink]]];

    _webView.scrollView.scrollEnabled = NO;

    _webView.UIDelegate = self;

    _webView.navigationDelegate = self;

    [_tableView setTableHeaderView:_webView];

    [SVProgressHUD show];

}

- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation

{

    [webView evaluateJavaScript:@"document.getElementById(\"content\").offsetHeight"

              completionHandler:^(id _Nullable result,NSError * _Nullable error) {

//        获取页面高度，并重置webview的frame

        _webViewHeight = [result doubleValue];

        CGRect frame = webView.frame;

        frame.size.height = _webViewHeight;

        webView.frame = frame;

        [_tableView beginUpdates];

        [_tableView setTableHeaderView:_webView];

        [_tableView endUpdates];

        [self getActivityComments];

    }];

}

- (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(WKNavigation *)navigation{

}

- (void)addTableView

{

    _tableView = [[UITableView alloc] initWithFrame:CGRectMake(,, SCREEN_WIDTH, SCREEN_HEIGHT-- ) style:UITableViewStylePlain];

    [_tableView setBackgroundColor:[UIColor clearColor]];

    [_tableView setDelegate:self];

    [_tableView setDataSource:self];

    _tableView.tableFooterView = [UIView new];

    _tableView.separatorStyle = UITableViewCellSeparatorStyleSingleLine;

    _tableView.separatorColor = SEPARATOR_COLOR_SYSTEM;

    [self.view addSubview:_tableView];

    [self loadLoadMoreFooter:_tableView action:@selector(loadMoreData)];

}