我以前的工作委托和协议的是,由于转换到夫特3不再被调用。委托功能没有被调用
protocol TaskCellDelegate {
func doneHit(_ cell : TaskCell)
}
class TaskCell : UITableViewCell {
var delegate : TaskCellDelegate?
@IBOutlet weak var label: UILabel!
@IBOutlet weak var detailLabel: UILabel!
@IBOutlet weak var _checkBox: M13Checkbox!
override func awakeFromNib() {
super.awakeFromNib()
let tap = UITapGestureRecognizer(target: self, action: #selector(TaskCell.buttonClicked(_:)))
tap.numberOfTapsRequired = 1
_checkBox.addGestureRecognizer(tap)
_checkBox.isUserInteractionEnabled = true
_checkBox.markType = .checkmark
_checkBox.boxType = .circle
_checkBox.stateChangeAnimation = .expand(.fill)
}
func buttonClicked(_ sender:UITapGestureRecognizer) {
delegate?.doneHit(self)
}
}
正如你可以看到,当_checkBox被窃听应该调用函数doneHit在我的班级(不加,因为它似乎没有必要的,但我可以),但我设置一个断点,它永远不会被调用。我已经设置了我的委托并符合我班的协议,但没有任何事情发生。 doneHit函数应该更新我的后端,但它没有被调用。如果您需要更多信息,我可以提供。
编辑1:
class TasksTVC: UITableViewController, TaskCellDelegate {
func doneHit(_ cell:TaskCell) {
if let indexPath = self.tableView.indexPath(for: cell) {
task = tasksInSectionArray[indexPath.section][indexPath.row]
if task.done == false {
cell._checkBox.setCheckState(.checked, animated: true)
task.done = true
task.completedBy = user
cell.detailLabel.text = "Completed By: \(task.completedBy)"
cell.label.textColor = UIColor.gray
print("cell checked")
}
else {
cell._checkBox.setCheckState(.unchecked, animated: true)
task.done = false
task.completedBy = ""
cell.detailLabel.text = ""
cell.label.textColor = UIColor.black
print("cell unchecked")
}
fb.updateTaskDoneBool(ref, taskID: task.id, taskDone: task.done)
fb.updateTaskCompletedBy(ref, taskID: task.id, taskCompletedBy: task.completedBy)
}
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "TaskCell", for: indexPath) as! TaskCell
cell.selectionStyle = .none
task = tasksInSectionArray[indexPath.section][indexPath.row]
cell.label.text = task.title
if task.done == true {
cell._checkBox.setCheckState(.checked, animated: true)
cell.detailLabel.text = "Completed By: \(task.completedBy)"
cell.label.textColor = UIColor.gray
}
else {
cell._checkBox.setCheckState(.unchecked, animated: true)
cell.detailLabel.text = ""
cell.label.textColor = UIColor.black
}
doneHit(cell)
cell.delegate = self
return cell
}}
'buttonClicked'被称为?显示你的'cellForRowAtindexPath'方法。 –