Question

我的视图中有可滚动的内容。我想添加拉动以刷新它。我尝试添加，但未触发操作。

我尝试了多种方式并也进行了重新搜索，但均无济于事。我将iOS 10作为最低部署目标。

Try1：

let refreshControl = UIRefreshControl()
self.scl_view.alwaysBounceVertical = true
refreshControl.addTarget(self, action: #selector(pullToRefresh(_:)), for: .valueChanged)
scl_view.addSubview(refreshControl)

Try2：

let refreshControl = UIRefreshControl()
self.scl_view.alwaysBounceVertical = true
refreshControl.addTarget(self, action: #selector(pullToRefresh(_:)), for: .valueChanged)
scl_view.refreshControl = refreshControl

// MARK：-刷新控件

@objc func pullToRefresh(_ refreshControl: UIRefreshControl) {
    // Update your conntent here
    self.setupData()
    //refreshControl.endRefreshing()
}

Answer 1

选择您的tablviewcontroller 转到检查器查找刷新选择已启用转到文档大纲并选择刷新控件控制拖动或右键单击（按住）拖动到您的控制器文件并在其上调用函数以刷新数据

在表视图上不可用

Answer 2

var refreshControl = UIRefreshControl()

override func viewDidLoad() {
    super.viewDidLoad()

    collectionView.delegate = self
    collectionView.dataSource = self

    // Add Refresh Control to collection View
    if #available(iOS 10.0, *) {
        collectionView.refreshControl = refreshControl
    } else {
        collectionView.addSubview(refreshControl)
    }

    refreshControl.tintColor = UIColor(red:0.25, green:0.72, blue:0.85, alpha:1.0)
    // Configure Refresh Control
    refreshControl.addTarget(self, action: #selector(fetchData(_:)), for: .valueChanged)
}


@objc private func fetchData(_ sender: Any) {

    DispatchQueue.main.async {
        //Fuction which you want to call
        self.refreshControl.endRefreshing()

    }
}

滚动视图中的刷新控件无法快速运行

2 个答案: