Swift:如何从 UITableViewCell、Action sheet 进行 segue

Question

如何从 UITableViewCell 进行转接？我有一个操作表和一个“修改配置文件”选项，我想通过传递一个 User 类型的对象来连接到另一个 viewController。这是我的代码:

    let actionsheet = UIAlertController(title: nil, message: nil, preferredStyle: UIAlertControllerStyle.actionSheet)

    actionsheet.addAction(UIAlertAction(title: "Programmer un RDV", style: UIAlertActionStyle.default, handler: { (action) -> Void in
        self.gotoCalendar()//Ouvrir la calendar
    }))
    actionsheet.addAction(UIAlertAction(title: "Liste des RDV", style: UIAlertActionStyle.default, handler: { (action) -> Void in
    }))
    actionsheet.addAction(UIAlertAction(title: "Factures", style: UIAlertActionStyle.default, handler: { (action) -> Void in
    }))
    actionsheet.addAction(UIAlertAction(title: "Envoyer un Whatsapp", style: UIAlertActionStyle.default, handler: { (action) -> Void in
    }))
    actionsheet.addAction(UIAlertAction(title: "Envoyer un SMS", style: UIAlertActionStyle.default, handler: { (action) -> Void in
    }))
    actionsheet.addAction(UIAlertAction(title: "Modifier", style: UIAlertActionStyle.default, handler: { (action) -> Void in
        //Ir i want to do segue to an other viewController, and pass data object
    }))
    actionsheet.addAction(UIAlertAction(title: "Supprimer", style: UIAlertActionStyle.default, handler: { (action) -> Void in
        self.deleteUser(); //Suppression du customer
    }))

    let cancelAction = UIAlertAction(title: "Cancel", style: .cancel)
    cancelAction.setValue(UIColor.red, forKey: "titleTextColor")

    actionsheet.addAction(cancelAction)
    myVC?.present(actionsheet, animated: true, completion: nil)

Answer 1

您可以在 profileViewController 中声明变量，例如 profileDate，然后在选择操作表选项后将数据分配给变量。

actionsheet.addAction(UIAlertAction(title: "Modifier", style: UIAlertActionStyle.default, handler: { (action) -> Void in
    // push new view controller in stack 
    let storyboard = UIStoryboard(name: "Main", bundle: nil)
    let vc = storyboard.instantiateViewControllerWithIdentifier("profileViewController") as profileViewController
    vc.profileDate = profileDate
    self.navigationController?.pushViewController(vc, animated: true)

}))

或者

actionsheet.addAction(UIAlertAction(title: "Modifier", style: UIAlertActionStyle.default, handler: { (action) -> Void in
    // Move to next view controller without stack
    let vc = self.storyboard?.instantiateViewController(withIdentifier: "profileViewController") as! ProfileViewController
    vc.profileDate = profileDate
    self.present(vc, animated: true, completion: nil)
}))

或者使用 performSegue

actionsheet.addAction(UIAlertAction(title: "Modifier", style: UIAlertActionStyle.default, handler: { (action) -> Void in
        self.performSegue(withIdentifier: "profileSegue", sender: self)

}))

下一步:

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if segue.identifier == "profileSegue" {
        if let destinationVC = segue.destinationViewController as? ProfileViewController {
                destinationVC.profileDate  = "Example"
        }
    }
}