给UITableView增加拷贝

func tableView(tableView: UITableView, performAction action: Selector, forRowAtIndexPath indexPath: NSIndexPath, withSender sender: AnyObject?) {
if action == Selector("copy:") {
if indexPath.row < Data.sharedManager.goodArticle.contentlist.count {
UIPasteboard.generalPasteboard().string = Data.sharedManager.goodArticle.contentlist[indexPath.row].url
}
}
}

func tableView(tableView: UITableView, canPerformAction action: Selector, forRowAtIndexPath indexPath: NSIndexPath, withSender sender: AnyObject?) -> Bool {
return action == Selector("copy:")
}

func tableView(tableView: UITableView, shouldShowMenuForRowAtIndexPath indexPath: NSIndexPath) -> Bool {
return true
}