触发 UITapGesture 时从单元格的子视图中获取单元格的引用

Posted 2023-02-27

【中文标题】触发 UITapGesture 时从单元格的子视图中获取单元格的引用

【英文标题】：Getting the reference of a cell from inside a childview of the cell when a UITapGesture is triggered

【发布时间】：2015-08-11 03:54:45

【问题描述】：

当从特定单元格的子视图中触发 UITapGesture 时，我试图从该单元格中检索数据。我当前的代码以一种我无法判断它是如何计算出来的方式为每个单元返回错误的单元格。有时它会因同一个单元格而改变。

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) 
    if (segue.identifier == "followerSeg" || segue.identifier == "followingSeg") 
        let vc = segue.destinationViewController as! FollowersFollowingVC
        let x = sender as! UITapGestureRecognizer
        let view = x.view!
        let cellone = view.superview as UIView?
        let cell = cellone?.superview as! PersonCell
        vc.userName = cell.person.profileName
        vc.userId = cell.person.id
        vc.segStatus = segue.identifier == "followerSeg" ? 0 : 1
    

【参考方案1】：

您可能想尝试使用 UITableView 的indexPathForRowAtPoint 方法。我使用 objc/ios 已经 5 年多了，但这是我第一次接触 Swift。请原谅任何语法错误。

假设你有一个名为tableView的属性，代码如下：

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) 
    if (segue.identifier == "followerSeg" || segue.identifier == "followingSeg") 
        let vc = segue.destinationViewController as! FollowersFollowingVC
        let x = sender as! UITapGestureRecognizer
        let location = x.locationInView(self.tableView) as CGPoint
        let indexPath = self.tableView.indexPathForRowAtPoint(location) as NSIndexPath?
        let cell = self.tableView.cellForRowAtIndexPath(indexPath!) as! PersonCell
        vc.userName = cell.person.profileName
        vc.userId = cell.person.id
        vc.segStatus = segue.identifier == "followerSeg" ? 0 : 1
    

【讨论】：

语法没问题。会投票，但我没有所需的声誉。谢谢。