ios - UITableView 删除行。 swift 2

Question

我有一个 TableView ，它是基于数组以编程方式创建的。我在按钮项上启用了编辑按钮，我希望能够从数组中删除行上的值，结果从 TableView 中删除了该值。

我有以下代码:

class TableViewController: UITableViewController {


var data = ["Apple", "Apricot", "Banana", "Blueberry", "Cantaloupe", "Cherry",
    "Clementine", "Coconut", "Cranberry", "Fig", "Grape", "Grapefruit",
    "Kiwi fruit", "Lemon", "Lime", "Lychee", "Mandarine", "Mango",
    "Melon", "Nectarine", "Olive", "Orange", "Papaya", "Peach",
    "Pear", "Pineapple", "Raspberry", "Strawberry"]


override func viewDidLoad() {
    super.viewDidLoad()
    self.navigationItem.rightBarButtonItem = self.editButtonItem()
}

override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
    // #warning Incomplete implementation, return the number of sections
    return 3
}

override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    // #warning Incomplete implementation, return the number of rows
    return data.count
}


override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCellWithIdentifier("test", forIndexPath: indexPath)

    cell.textLabel?.text = data[indexPath.row]
    return cell
}



// Override to support conditional editing of the table view.
override func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool {
    // Return false if you do not want the specified item to be editable.
    return true
}



// Override to support editing the table view.
override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
    if editingStyle == .Delete {


        data.removeAtIndex(indexPath.row)

        tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade)
    } else if editingStyle == .Insert {
        // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
    }    
}
}

当我运行它，并单击一行上的删除按钮时，出现以下错误:

malloc: error for object 0x7ffc69f4d580: incorrect checksum for freed object - object was probably modified after being freed. set a breakpoint in malloc_error_break to debug

任何帮助将不胜感激:)

Answer 1

这是因为您在 numberOfSectionsInTableView 函数中返回了 3...

尝试只返回 1:

override func numberOfSectionsInTableView(tableView: UITableView) -> Int {

    return 1 // here
}