Question

我有一个UITableView我尝试添加一个UIRefreshControl，但它从未显示我试过几件事

例如：

    refreshControl = UIRefreshControl()
    refreshControl.attributedTitle = NSAttributedString(string: "")
    refreshControl.addTarget(self, action:    #selector(EvenementsViewController.refresh(_:)), forControlEvents:    UIControlEvents.ValueChanged)
    uitableViewAlert!.addSubview(refreshControl) // not required when using UITableViewController
    uitableViewAlert!.alwaysBounceVertical = true

但无法看到UIRefreshControl

任何帮助将不胜感激

-------------------编辑--------------------

我终于找到了解决方案

在xib文件中，uitableview在scrollview部分我检查弹跳和垂直弹跳现在它的工作原理。谢谢你的帮助

Answer 1

对于Objective-C：

您可以在tableView内设置ViewController的刷新控制器：

    UIRefreshControl *refreshControl = [[UIRefreshControl alloc]init];
    [uitableViewAlert addSubview:refreshControl];
    [refreshControl addTarget:self action:@selector(refreshTable:) forControlEvents:UIControlEventValueChanged];

//Action : 

-(IBAction)refreshTable:(id)sender
{
   //do the refresh task
}

或

更好地实例化UITableViewController，然后将UIRefreshControl和UITableView设置为，即：

UITableViewController *tableViewController = [[UITableViewController alloc] init]; tableViewController.tableView = uitableViewAlert; refreshControl = [[UIRefreshControl alloc] init]; [refreshControl addTarget:self action:@selector(refreshTable:) forControlEvents:UIControlEventValueChanged]; [tableViewController setRefreshControl:refreshControl];

Answer 2

希望可以帮到你

 var refreshControl = UIRefreshControl()
 refreshControl.addTarget(self, action: #selector(ViewController.refreshData),
        forControlEvents: UIControlEvents.ValueChanged)
 refreshControl.attributedTitle = NSAttributedString(string: "下拉刷新数据")
 self.tableView?.addSubview(refreshControl)

Answer 3

对于Refresh视图，我们只需在代码中执行此操作： -

 let refreshControl = UIRefreshControl()

//MARK:- Life Cycle
override func viewDidLoad() {
    super.viewDidLoad()
 refreshControl.addTarget(self, action: #selector(NotificationVC.getlistPromotion), forControlEvents: UIControlEvents.ValueChanged)
 refreshControl.tintColor = UIColor.purpleColor()
 refreshControl.attributedTitle = NSAttributedString(string: "Refresh...")
 tableView.addSubview(refreshControl)
}

internal func getlistPromotion(){
//Do something here for Refresh table data
}

//and Finally for stop need to do
 self.refreshControl.endRefreshing()

Answer 4

UIRefreshControl仅使用UITableViewController实例100％正常工作。您可以在此处跟踪类似问题：UIRefreshControl without UITableViewController

UITableView和UIRefreshControl并没有显示出来

4 个答案: