在交互式 table 视图 header 中确定部分索引

Question

我有一个带有交互部分的 UITableView header 通过使用 UIButton 的自定义操作创建。当按下此按钮时，将通过 prepareForSegue 执行到另一个视图控制器。但是，此功能不提供部分选择。是否有使部分索引可用的解决方案？由于部分已经在 viewForHeaderInSection 中可用，能否以某种方式将其传递给 prepareForSegue？

还有一个有类似的主题，但我无法确定章节索引。

提前致谢，杰拉德

func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -> UIView?
{
    let header = UIView()
    let btn = UIButton(type: UIButtonType.Custom) as UIButton
    btn.frame = CGRectMake(0, 0, tableView.frame.size.width, 40)
    btn.addTarget(self, action: "buttonAction:", forControlEvents: .TouchUpInside)
    btn.setTitle(String(section), forState: .Normal)
    btn.setTitleColor(UIColor.blackColor(), forState: .Normal)
    header.addSubview(btn)
    return header
}

func buttonAction(sender:UIButton!)
{
    self.performSegueWithIdentifier("myIdentifier", sender: self)
}

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

    if segue.identifier == "myIdentifier" {
        let detailViewController = segue.destinationViewController as! MyViewController

        if let selectedSection = sender {
            // Here the selected section should be determined....
            // ... so that data can be passed to detailViewController, e.g.
            //    detailViewController.sectionNumber = section
        }
}

Answer 1

这是你可能做的添加变量 var sectionToPass: Int

func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -> UIView?
{
    let header = UIView()
    let btn = UIButton(type: UIButtonType.Custom) as UIButton
    btn.frame = CGRectMake(0, 0, tableView.frame.size.width, 40)
    btn.addTarget(self, action: "buttonAction:", forControlEvents: .TouchUpInside)
    //Add This Part
    btn.tag = section
    //
    btn.setTitle(String(section), forState: .Normal)
    btn.setTitleColor(UIColor.blackColor(), forState: .Normal)
    header.addSubview(btn)
    return header
}

func buttonAction(sender:UIButton!)
{
    //ADD THIS PART
    sectionToPass = sender.tag
    //
    self.performSegueWithIdentifier("myIdentifier", sender: self)

}

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

if segue.identifier == "myIdentifier" {
    let detailViewController = segue.destinationViewController as! MyViewController

    if let selectedSection = sender {
        // Here the selected section should be determined....
        // ... so that data can be passed to detailViewController, e.g.
        //    detailViewController.sectionNumber = section
        //ADD THIS PART
        detailViewController.sectionNumber = sectionToPass
    }
}

在交互式 table 视图 header 中确定部分索引

Determining section index in an interactive table view header

uitableview

sections

segue

swift