ios - 搜索栏不一致错误(Swift)？

Question

我正在尝试在我的表格 View 上方的 View 中连接一个搜索栏:

//Outlet for the table search bar/controller
@IBOutlet var searchBar: UISearchBar!
var searchController =  UISearchController(searchResultsController: nil)
var searchBar_optional = false

//Function for when the search button is triggered
@IBAction func searchButtonPressed(sender: UIBarButtonItem) {

    if(searchBar_optional == false){
         tableView.contentInset = UIEdgeInsets(top: barView.bounds.size.height-30, left: 0.0, bottom: 0.0, right: 0.0)
        searchBar_optional = true
    }
    else if (searchBar_optional){
         tableView.contentInset = UIEdgeInsets(top: barView.bounds.size.height-78, left: 0.0, bottom: 0.0, right: 0.0)
        searchBar_optional = false
    }

}

var dataArray = [MainTableViewCell]()

var filteredArray = [MainTableViewCell]()

var shouldShowSearchResults = false


func filterContentForSearchText(searchText: String, scope: String = "All"){
    filteredArray = dataArray.filter{ cell in
        if((cell.fileName.text?.containsString(searchText.lowercaseString)) == true){
            return true
        }
        else if((cell.fileDescription.text?.containsString(searchText.lowercaseString)) == true){
            return true
        }
        else if((cell.fileCategory.text?.containsString(searchText.lowercaseString)) == true){
            return true
        }
        else if((cell.fileType.text?.containsString(searchText.lowercaseString)) == true){
            return true
        }
        else{
            return false
        }

    }
    tableView.reloadData()
}

func updateSearchResultsForSearchController(searchController: UISearchController) {
    filterContentForSearchText(searchBar.text!)
}

func configureSearchController() {
 searchController.searchResultsUpdater = self
 searchController.dimsBackgroundDuringPresentation = false
 definesPresentationContext = true

}

当按下搜索按钮时，它会向下移动 View ，使搜索栏可见。但是，当我按下搜索栏时，会弹出此错误:

*** Assertion failure in -[UISearchResultsTableView 
dequeueReusableCellWithIdentifier:forIndexPath:],
/BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit_Sim/UIKit-
3512.60.7/UITableView.m:6573
2016-08-02 13:13:05.001 References[22478:14561725] *** Terminating app due 
to uncaught exception 'NSInternalInconsistencyException', reason: 'unable to
dequeue a cell with identifier MainTableCell - must register a nib or a 
class for the identifier or connect a prototype cell in a storyboard'

我的单元格的单元格标识符是 MainTableCell，所以这就是它在错误中这样说的原因。知道发生了什么事吗？

Answer 1

您没有使用此标识符注册 tableViewCell。将 MainTableCell 放在 Storyboard 中的单元格 ID 中或您为 tableView 注册单元格类的位置(如果您以编程方式进行)。

更新:

我认为这与从 tableView 中出列单元格有关。 我猜你有标准代码:

cell = tableView.dequeueReusableCellWithIdentifier(cellId, forIndexPath: indexPath)

请尝试将其替换为:

cell = self.tableView.dequeueReusableCellWithIdentifier(cellId, forIndexPath: indexPath)