Swift-搜索时禁用refreshControl

Question

在搜索过程中，我想禁用“刷新”机制。因此，我禁用了刷新控件并将其删除。但是，当下拉刷新时，将调用beginRefresh方法，并且像刷新一样，单元格将保持关闭状态2秒钟。

func searchBarShouldBeginEditing(searchBar: UISearchBar) -> Bool {
    resultSearchController.searchBar.selectedScopeButtonIndex = 0
    refreshControl!.enabled = false
    refreshControl?.removeFromSuperview()
    return true
}

Answer 1

如果要在 UITableView 顶部创建或删除刷新控件，请使用这两个函数。

func createRefreshControl() {
    // Create RefreshControl and add to tableView
    self.refreshControl = UIRefreshControl()
    self.refreshControl!.attributedTitle = NSAttributedString(string: " ? Refresh ? ")
    self.refreshControl!.addTarget(self, action: "refresh:", forControlEvents: UIControlEvents.ValueChanged)
}

func deleteRefreshControl() {
    // delete RefreshControl
    self.refreshControl = nil
}

Answer 2

搜索时，请检查refreshControl是否具有superView并从superView中删除从搜索结束后再次添加它，条件将如下所示：

  if self.refreshControl.isDescendant(of: self.tblView) {
      self.refreshControl.removeFromSuperview() 
  }