问题描述
我在 tableviewcontroller 中有一个 UISwitch
,当开关被切换时,我希望它改变我在视图控制器内创建的数组中的布尔变量的值,该单元格是相关的到.有点像 IOS 上的股票警报应用程序,其中每个单元格都有一个 UISwitch
,切换开关将关闭每个单独的警报.所以对于 UISwitch
和它的选择器代码,这是在 cellForRowAtIndexPath
方法中
I have a UISwitch
in a tableviewcontroller, and when the switch is toggled I want it to change the value of a boolean variable in an array I created inside the view controller, that the cell is related to. Kind of like the Stock Alarm App on IOS, where each cell has a UISwitch
, and toggling the switch will turn off each individual alarm. So with the UISwitch
, with its selector code, this is inside the cellForRowAtIndexPath
method
//switch
let lightSwitch = UISwitch(frame: CGRectZero) as UISwitch
lightSwitch.on = false
lightSwitch.addTarget(self, action: #selector(switchTriggered), forControlEvents: .ValueChanged)
//lightSwitch.addTarget(self, action: "switchTriggered", forControlEvents: .ValueChanged )
cell.accessoryView = lightSwitch
我希望它这样做
func switchTriggered(a: Int) {
changeValueOfArray = array[indexPath.row]
}
我还没有为该部分编写代码,但我的问题是,如何让 switchTriggered 函数看到 indexPath.row
值,而不将其作为参数传递给函数,因为我不能,因为它是一个选择器?
I don't have the code written for that part yet, but my question is, How can i let the switchTriggered function see the indexPath.row
value, without passing it as an argument to the function because I can't because its a selector?
推荐答案
let lightSwitch = UISwitch(frame: CGRectZero) as UISwitch
lightSwitch.on = false
lightSwitch.addTarget(self, action: #selector(switchTriggered), forControlEvents: .ValueChanged)
lightSwitch.tag = indexpath.row
cell.accessoryView = lightSwitch
让我们将布尔值保存在数组中
Let save your boolean value in Array
func switchTriggered(sender: UISwitch) {
sender.on ? array[sender.tag]=1 : array[sender.tag]=0
}
}
这篇关于表视图单元的附件视图中的 UISwitch,通过选择器传递参数以使选择器功能看到 indexpath.row?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!