Question

为什么我收到此错误？我需要做什么？

*断言失败 - [UITableView _endCellAnimationsWithContext：]，/ BuildRoot / Library / Cache / com.apple.xbs / Sources / UIKit / UIKit-3600.8.1 / UITableView.m：1442 2017-07-06 20：25：30.736267-0400 BlogApp [1482：340583] * 由于未捕获的异常'NSInternalInconsistencyException'而终止应用程序，原因：'尝试删除第0部分中仅包含0行的第0行更新'

崩溃就在这里

// ----- Inserting Cell to followedArray -----
let blogObject: Blog = filteredArray[indexPath.section][indexPath.row]
let indexOfObjectInArray = mainArray.index(of: blogObject)

followedArray.insert(blogObject, at: 0)

// ----- Removing Cell from filteredArray -----
filteredArray.remove(at: [indexPath.section][indexPath.row])
mainArray.remove(at: indexOfObjectInArray!)
let rowToRemove = indexPath.row
self.myTableView.deleteRows(at: [IndexPath(row: rowToRemove, section: 0)], with: .fade)

self.myTableView.endUpdates()

我从未使用数组var filteredArray = [[Blog]]()，所以也许我只是没有正确访问它或正确删除它。

我刚刚发布了关于修复我正在使用的SearchBar问题的帖子，但是当我尝试它时，我遇到了这个崩溃。当我在搜索对象时单击跟随按钮时会发生这种情况。我不太了解，因为我是SearchBar代码的新手。

从filteredArray中删除单元格时出现问题，可能无法正确访问它，因此无法删除它？我已经逐行设置了断点，并且在从filteredArray

中删除单元格时崩溃了

另外，我遇到了SearchBar的一般问题并获得了新代码，所以这可能会有所帮助。

Swift: Have SearchBar search through both sections and not combine them

如有任何其他信息，请告诉我，谢谢。

// Follow Button
@IBAction func followButtonClick(_ sender: UIButton!) {

    // Adding row to tag
    let buttonPosition = (sender as AnyObject).convert(CGPoint.zero, to: self.myTableView)
    if let indexPath = self.myTableView.indexPathForRow(at: buttonPosition) {

        // Change Follow to Following
        (sender as UIButton).setImage(UIImage(named: "follow.png")!, for: .normal)
        cell.followButton.isHidden = true
        cell.followedButton.isHidden = false

        // Checking wether to import from mainArray or filteredArray to followedArray
        if !(searchController.isActive && searchController.searchBar.text != "") {

            self.myTableView.beginUpdates()

            // Save identifier into followedIdentifier array
            self.followedIdentifiers.insert(mainArray[indexPath.row].blogID)

            // ----- Inserting Cell to followedArray -----
            followedArray.insert(mainArray[indexPath.row], at: 0)
            myTableView.insertRows(at: [IndexPath(row: 0, section: 0)], with: .fade)

            // ----- Removing Cell from mainArray -----
            mainArray.remove(at: indexPath.row)
            let rowToRemove = indexPath.row
            self.myTableView.deleteRows(at: [IndexPath(row: rowToRemove, section: 1)], with: .fade)

            self.myTableView.endUpdates()

            // After Updating Table, Save the Archived Data to File Manager
            saveData()
        }
        else { // **** Crash in this section ****

            self.myTableView.beginUpdates()

            // Remove identifier into followedIdentifier array
            self.followedIdentifiers.remove(followedArray[indexPath.row].blogID)

            // ----- Inserting Cell to followedArray -----
            let blogObject: Blog = filteredArray[indexPath.section][indexPath.row]
            let indexOfObjectInArray = mainArray.index(of: blogObject)

            followedArray.insert(blogObject, at: 0)

            //------------------------
            // CRASH SHOULD BE HERE (breakpoints lead me here)
            //------------------------

            // ----- Removing Cell from filteredArray -----
            filteredArray.remove(at: [indexPath.section][indexPath.row])
            mainArray.remove(at: indexOfObjectInArray!)
            let rowToRemove = indexPath.row
            self.myTableView.deleteRows(at: [IndexPath(row: rowToRemove, section: 0)], with: .fade)

            self.myTableView.endUpdates()

            // After Updating Table, Save the Archived Data to File Manager
            saveData()
        }
    }
}

我的其余代码，可能有助于解决问题

var mainArray = [Blog]()
var followedArray = [Blog]()
var filteredArray = [[Blog]]()

// Number of Rows in Section
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

    if !(searchController.isActive && searchController.searchBar.text != "") {

        if section == 0 {
            return followedArray.count
        } else {
            return mainArray.count
        }
    } else {
        return filteredArray[section].count
    }
}

// CellForRowAt indexPath
public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    let CellIdentifier = "Cell"
    var cell = tableView.dequeueReusableCell(withIdentifier: CellIdentifier) as! CustomCell

    if cell != cell {
        cell = CustomCell(style: UITableViewCellStyle.default, reuseIdentifier: CellIdentifier)
    }

    // Configuring the cell
    var blogObject: Blog

    if !(searchController.isActive && searchController.searchBar.text != "") {
        if indexPath.section == 0 {
            blogObject = followedArray[indexPath.row]
            cell.populateCell(blogObject, isFollowed: true, indexPath: indexPath, parentView: self)
        } else {
            blogObject = mainArray[indexPath.row]
            cell.populateCell(blogObject, isFollowed: false, indexPath: indexPath, parentView: self)
        }
    } else {
        blogObject = filteredArray[indexPath.section][indexPath.row]
        cell.populateCell(blogObject, isFollowed: false, indexPath: indexPath, parentView: self)
    }

    return cell
}

取消关注按钮代码

同样的问题应该在这里，因为它与跟随按钮相反。

// Unfollow Button
@IBAction func followedButtonClick(_ sender: UIButton!) {

    // Adding row to tag
    let buttonPosition = (sender as AnyObject).convert(CGPoint.zero, to: self.myTableView)
    if let indexPath = self.myTableView.indexPathForRow(at: buttonPosition) {

        // Change Following to Follow
        (sender as UIButton).setImage(UIImage(named: "followed.png")!, for: .normal)
        cell.followButton.isHidden = false
        cell.followedButton.isHidden = true

        self.myTableView.beginUpdates()

        // Remove identifier into followedIdentifier array
        self.followedIdentifiers.remove(followedArray[indexPath.row].blogID)

        // ----- Inserting Cell to mainArray -----
        mainArray.insert(followedArray[indexPath.row], at: 0)
        myTableView.insertRows(at: [IndexPath(row: 0, section: 1)], with: .fade)

        // ----- Removing Cell from followedArray -----
        followedArray.remove(at: indexPath.row)
        let rowToRemove = indexPath.row
        self.myTableView.deleteRows(at: [IndexPath(row: rowToRemove, section: 0)], with: .fade)

        self.myTableView.endUpdates()

        // After Updating Table, Save the Archived Data to File Manager
        saveData()
    }
}

Answer 1

您必须首先从TableView中删除单元格！

// ----- Removing Cell from filteredArray -----
self.myTableView.deleteRows(at: [indexPath], with: .fade)
filteredArray.remove(at: [indexPath.section][indexPath.row])
mainArray.remove(at: indexOfObjectInArray!)

尝试一下。

Answer 2

您可以尝试使用不同的操作更新 tableview。

喜欢：

- 执行您的阵列更新过程-

- 对于插入过程-

self.myTableView.beginUpdates()
myTableView.insertRows(at: [IndexPath(row: 0, section: 1)], with: .fade)
self.myTableView.endUpdates()

然后

- 执行您的阵列更新过程-

- 对于删除过程-

self.myTableView.beginUpdates()
self.myTableView.deleteRows(at: [IndexPath(row: rowToRemove, section: 0)], with: .fade)
self.myTableView.endUpdates()

希望它会有所帮助，因为我遇到了同样的问题，这个解决方案对我有用！！

Swift：'尝试删除第0部分中的第0行，在更新之前只包含0行'

2 个答案: