Question

我在这篇文章中使用了Cristik的回答：Drop-Down List in UITableView in iOS

代码工作正常，但我正在尝试创建逻辑，因此当用户单击一个闭合单元格时，每个其他打开的单元格都会关闭。因此，如果“帐户”单元格处于打开状态，则当用户单击“事件1”时，将打开事件并关闭“帐户1”。

我尝试了以下逻辑：

for (var x = 0; x < displayedRows.count; x++) {

                    let view = displayedRows[x]
                    if (view.isCollapsed == false && x != indexPath.row){
                        let range = x+1...x+view.children.count
                        displayedRows.removeRange(range)
                        let indexPaths = range.map{return NSIndexPath(forRow: $0, inSection: indexPath.section)}

                        tableView.deleteRowsAtIndexPaths(indexPaths, withRowAnimation: .Automatic)
                    }

                }

这是完整的功能：

 override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    tableView.deselectRowAtIndexPath(indexPath, animated: false)
    let viewModel = displayedRows[indexPath.row]
    if viewModel.children.count > 0 {
        let range = indexPath.row+1...indexPath.row+viewModel.children.count
        let indexPaths = range.map{return NSIndexPath(forRow: $0, inSection: indexPath.section)}
        tableView.beginUpdates()
        if viewModel.isCollapsed {
            displayedRows.insertContentsOf(viewModel.children, at: indexPath.row+1)
            tableView.insertRowsAtIndexPaths(indexPaths, withRowAnimation: .Automatic)


            for (var x = 0; x < displayedRows.count; x++) {

                let view = displayedRows[x]
                if (view.isCollapsed == false && x != indexPath.row){
                    let range = x+1...x+view.children.count
                    displayedRows.removeRange(range)
                    let indexPaths = range.map{return NSIndexPath(forRow: $0, inSection: indexPath.section)}

                    tableView.deleteRowsAtIndexPaths(indexPaths, withRowAnimation: .Automatic)
                }

            }

        }

        else {
            displayedRows.removeRange(range)
            tableView.deleteRowsAtIndexPaths(indexPaths, withRowAnimation: .Automatic)
        }

        tableView.endUpdates()
    }
    viewModel.isCollapsed = !viewModel.isCollapsed
    lastIndex = indexPath.row
}

我也尝试过此代码的变体但由于某些原因不断收到以下错误：由于未捕获的异常终止应用程序＆＃39; NSInternalInconsistencyException＆＃39;，原因：＆＃39;尝试插入行6进入第0部分，但更新后第0部分只有6行

我知道这是一个数据源问题，但我似乎无法找到解决方案。任何解决方案/或替代方式来实现这一点将不胜感激！谢谢

关闭所有其他打开的UITableViewCell

0 个答案: