搜索时停用 UIRefreshControl

Question

我在 TableView 上实现了一个 UIRefreshControl，另外，我添加了一个带有 searchBar 的 searchController。

搜索和下拉刷新工作得很好，我唯一遇到的问题是如何在 searchController 处于活动状态时停用 "pull to refresh" 功能。

我尝试实施 this 解决方案，但不知何故这对我不起作用。

Answer 1

让你的 viewcontroller 符合 UISearchBarDelegate

class ViewController: UIViewController, UISearchBarDelegate

并实现它的两个方法

func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
    self.removeRefreshControl()        
}

func searchBarTextDidEndEditing(_ searchBar: UISearchBar) {
    self.initRefreshControl()
}

在每个方法中调用函数来设置和删除 UIRefreshControl

func initRefreshControl() {
    self.refreshControl = UIRefreshControl()
    self.refreshControl?.addTarget(self, action: #selector(ViewController.refreshData), for: .valueChanged)

    self.tableView.refreshControl = self.refreshControl
}

func removeRefreshControl() {
    self.refreshControl = nil
}

完整代码为：

class ViewController: UIViewController, UISearchBarDelegate {

    @IBOutlet weak var tableView: UITableView!

    @IBOutlet weak var searchBar: UISearchBar!

    var refreshControl: UIRefreshControl?

    override func viewDidLoad() {
        super.viewDidLoad()
        self.initRefreshControl()
    }

    func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
        self.removeRefreshControl()
    }

    func searchBarTextDidEndEditing(_ searchBar: UISearchBar) {
        self.initRefreshControl()
    }

    func initRefreshControl() {
        self.refreshControl = UIRefreshControl()
        self.refreshControl?.addTarget(self, action: #selector(ViewController.refreshData), for: .valueChanged)

        self.tableView.refreshControl = self.refreshControl
    }

    func removeRefreshControl() {
        self.refreshControl = nil
    }

    @objc func refreshData() {
        ....
        ....
        self.refreshControl?.endRefreshing()
    }
}

这应该有效。

搜索时停用 UIRefreshControl

Deactivate UIRefreshControl while searching

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uisearchcontroller