在cellForRowAtIndexPath
中,我试图将开关选择和字符串传递给选择器函数,但我无法通过。请帮忙。
let pidName = "someString"
cell.switchSelection.tag = indexPath.row
cell.switchSelection.addTarget(self, action:
#selector(self.switchOperation(_:pid:)), for: .valueChanged)
在这里,我必须通过发件人和pidName
,但失败了
@objc func switchOperation(_ sender: UISwitch, pid: Any){
let store = (sender).isOn
let settingTag = pid
}
答案 0 :(得分:1)
正确的解决方案是将操作移至您的单元格类中:
class MyCell: UITableViewCell {
@IBOutlet weak var switchSelection: UISwitch!
override func awakeFromNib() {
super.awakeFromNib()
switchSelection.addTarget(self, action: #selector(MyCell.action(_:)), for: .valueChanged)
}
func configure(switchAction: @escaping (Bool) -> Void) {
self.switchAction = switchAction
}
@objc func action(_ sender: UISwitch) {
switchAction(sender.isOn)
}
private var switchAction: (Bool) -> Void = { _ in }
}
现在在表视图委托中,您可以执行以下操作:
let pidName = "someString"
cell.configure(switchAction: { [weak self] isOn in
let store = isOn
let settingTag = pid
}
或者您可以这样做:
let pidName = "someString"
cell.configure(switchAction: { [weak self] isOn in
self?.switchOperation(isOn: isOn, pid: pid)
}
@objc func switchOperation(isOn: Bool, pid: Any){
let store = isOn
let settingTag = pid
}
答案 1 :(得分:0)
您不能使用其他参数
cell.switchSelection.addTarget(self, action:
#selector(self.switchOperation(_:)), for: .valueChanged)
仅发送与目标添加到对象的类型相同的一个参数
您需要将某处的开关标签设置为pid
并像这样使用它
@objc func switchOperation(_ sender: UISwitch) {
print(sender.tag)
}