說明

先再先來做新增功能了

內容

指令：

設計一個左側navbtn 新增人員的btn 使用"+"當標題 使用alert 同時輸入email與name

程式：

 // 設置"+"按鈕
    private func setupAddButton() {
        let addButton = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(addButtonTapped))
        navigationItem.leftBarButtonItem = addButton
    }
    
    // "+"按鈕點擊事件
    @objc private func addButtonTapped() {
        showAddPersonAlert()
    }
    
    // 顯示新增人員的警告框
    private func showAddPersonAlert() {
        let alertController = UIAlertController(title: "新增人員", message: "請輸入人員資料", preferredStyle: .alert)
        
        // 添加姓名輸入欄位
        alertController.addTextField { textField in
            textField.placeholder = "姓名"
        }
        
        // 添加電子郵件輸入欄位
        alertController.addTextField { textField in
            textField.placeholder = "電子郵件"
            textField.keyboardType = .emailAddress
        }
        
        // 添加取消按鈕
        let cancelAction = UIAlertAction(title: "取消", style: .cancel)
        
        // 添加確認按鈕
        let confirmAction = UIAlertAction(title: "確認", style: .default) { [weak self] _ in
            guard let nameTextField = alertController.textFields?[0],
                  let emailTextField = alertController.textFields?[1],
                  let name = nameTextField.text, !name.isEmpty else {
                // 如果姓名為空，顯示錯誤訊息
                self?.showErrorAlert(message: "姓名不能為空")
                return
            }
            
            // 獲取電子郵件（可以為空）
            let email = emailTextField.text?.isEmpty == true ? nil : emailTextField.text
            
        }
        
        alertController.addAction(cancelAction)
        alertController.addAction(confirmAction)
        
        present(alertController, animated: true)
    }
    
    // 顯示成功訊息
    private func showSuccessAlert(message: String) {
        let alertController = UIAlertController(title: "成功", message: message, preferredStyle: .alert)
        let okAction = UIAlertAction(title: "確定", style: .default)
        alertController.addAction(okAction)
        present(alertController, animated: true)
    }
    
    // 顯示錯誤訊息
    private func showErrorAlert(message: String) {
        let alertController = UIAlertController(title: "錯誤", message: message, preferredStyle: .alert)
        let okAction = UIAlertAction(title: "確定", style: .default)
        alertController.addAction(okAction)
        present(alertController, animated: true)
    }