选择TableViewCell时，目标viewcontroller刷新2次

Question

当我点击tableview单元格时，我想要查看表格视图的详细信息。但首先是虚拟屏幕，之后我的数据正在加载。我不想看虚拟屏幕。我该如何避免虚拟屏幕？

 func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {

    let indexPath = tableView.indexPathForSelectedRow!
    let campaigns = self.campaigns[indexPath.row] as Campaigns

    altResim = campaigns.AltResimUrl
    detailDesc = campaigns.Description
    reward = campaigns.Bonus
    titleofDetail = campaigns.Title
    subtitleofDetail = campaigns.Subtitle

    performSegueWithIdentifier("showDetailSegue", sender: self)
}

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    /*  if segue.identifier == containerSegueName {
     containerViewController = segue.destinationViewController as? ContainerVC
     }
     else*/
    if segue.identifier == "showDetailSegue" {

        let detailVC : ProductDetailVC = segue.destinationViewController as! ProductDetailVC

        detailVC.receivedAltResim = altResim
        detailVC.receivedDetailDesc = detailDesc
        detailVC.recirevedReward = reward
        detailVC.recievedTitleofDetail = titleofDetail
        detailVC.recievedSubtitleofDetail = subtitleofDetail
    }

}

这是我选择单元格并使用segue传输数据的地方。

    relative_urls : false,