如何知道 UITableview 的行号 [英] How to know the UITableview row number

问题描述

我有一个 UITableViewCell 和 UISwitch 作为每个单元格的附件视图.当我更改单元格中开关的值时，如何知道开关在哪一行?我需要开关值更改事件中的行号.

I have a UITableViewCell with UISwitch as accessoryview of each cell. When I change the value of the switch in a cell, how can I know in which row the switch is? I need the row number in the switch value changed event.

推荐答案

标签、子类或视图层次结构导航工作量太大！.在您的操作方法中执行此操作:

Tags, subclasses, or view hierarchy navigation are too much work!. Do this in your action method:

CGPoint hitPoint = [sender convertPoint:CGPointZero toView:self.tableView]; 
NSIndexPath *hitIndex = [self.tableView indexPathForRowAtPoint:hitPoint];

适用于任何类型的视图、多节表，无论你可以扔什么——只要你的发件人的原点在单元格的框架内(感谢 rob！)，这通常是这种情况.

Works with any type of view, multi section tables, whatever you can throw at it - as long as the origin of your sender is within the cell's frame (thanks rob!), which will usually be the case.

这里是一个 UITableView Swift 扩展:

And here it is in a UITableView Swift extension:

extension UITableView {
    func indexPath(for view: UIView) -> IndexPath? {
        let location = view.convert(CGPoint.zero, to: self)
        return self.indexPathForRow(at: location)
    }
}

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