UITableView-在不同部分中选择多个和单个 [英] UITableView - Multiple and Single selection in different sections

问题描述

我有一个带有两个不同部分的 UITableView .是否可以在一个部分中进行多项选择，而在另一部分中进行一项选择呢?如果我使用:

I have a UITableView with 2 different sections. Is it posible to have multiple selection in one section and single selection in the other? If I use:

self.tableView.allowsMultipleSelection = YES;

它会影响整个表.

推荐答案

我将展示我自己的解决方案，该解决方案与您发布的解决方案几乎相同.我认为这要好一些，因为我手动管理选定的行，因此以后可以使用 tableView.indexPathsForSelectedRows 属性.

I'll expose my own solution, that is pretty much the same one as the one you posted. I think it's a tad better though, since I manually manage the selected rows so I can use the tableView.indexPathsForSelectedRows property later on.

它是用Swift 2编写的.

It's written in Swift 2.

我首先声明一个NSIndexPath，它将存储先前选择的项目

I first declare a NSIndexPath that will store the previously selected item

var indexPathOfPreviouslySelectedRow: NSIndexPath?

然后我使用这些tableView委托函数(我的单选部分为0，我的多选部分为1)

I then use these tableView delegate functions (my single selection section is 0, my multiple selection is 1)

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    switch indexPath.section {
    case 0:
        if let previousIndexPath = indexPathOfSelectedRowPaidBy {
            tableView.deselectRowAtIndexPath(previousIndexPath, animated: false)
            tableView.cellForRowAtIndexPath(previousIndexPath)?.accessoryType = UITableViewCellAccessoryType.None
        }
        indexPathOfSelectedRowPaidBy = indexPath
        tableView.cellForRowAtIndexPath(indexPath)?.accessoryType = UITableViewCellAccessoryType.Checkmark

    case 1:
        tableView.cellForRowAtIndexPath(indexPath)?.accessoryType = UITableViewCellAccessoryType.Checkmark

    default:
        break
    }


}

func tableView(tableView: UITableView, didDeselectRowAtIndexPath indexPath: NSIndexPath) {
    switch indexPath.section {
    case 0:
        if let previousIndexPath = indexPathOfSelectedRowPaidBy {
            tableView.deselectRowAtIndexPath(previousIndexPath, animated: false)
            tableView.cellForRowAtIndexPath(previousIndexPath)?.accessoryType = UITableViewCellAccessoryType.None
        }
        indexPathOfSelectedRowPaidBy = nil

    case 1:
        tableView.cellForRowAtIndexPath(indexPath)?.accessoryType = UITableViewCellAccessoryType.None

    default:
        break
    }

}

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