ios - 无法删除 UITableView 中的行

Question

我有 2 个数组，在删除行时需要从中删除数据，并且两个数组似乎都已删除。但是，当我滑动删除时，出现以下错误:

[2078:568325] *** Assertion failure in -[UITableView
_endCellAnimationsWithContext:], /SourceCache/UIKit/UIKit-3318.16.21/UITableView.m:1582 [2078:568325]
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid update: invalid
number of rows in section 0. The number of rows contained in an
existing section after the update (2) must be equal to the number of
rows contained in that section before the update (2), plus or minus
the number of rows inserted or deleted from that section (0 inserted,
1 deleted) and plus or minus the number of rows moved into or out of
that section (0 moved in, 0 moved out).'

func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool {
    return true
}

func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {

    if editingStyle == UITableViewCellEditingStyle.Delete {
        audioPlayers[indexPath.row].stop()
        audioFiles.removeAtIndex(indexPath.row)
        audioPlayers.removeAtIndex(indexPath.row)
        tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade)
    }

}

deleteRowsAtIndexPaths 似乎出错了。

Answer 1

在从数据模型中删除元素之前，尝试移动删除行的调用。像这样的事情:

func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {

    if editingStyle == UITableViewCellEditingStyle.Delete {
        audioPlayers[indexPath.row].stop()
        tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade)
        audioFiles.removeAtIndex(indexPath.row)
        audioPlayers.removeAtIndex(indexPath.row)
    }

}