How to use array of another view controller class?

问题

I need to use the order array in another class (AddOrderVievContoller.swift class)

class OrderListViewController: UITableViewController {

    var orders: [Order] = []

error message in AddOrderVievContoller.swift class: use of unresolved indentifier 'orders'

if results != nil {
    orders = results as! [Order]
}

回答1:

Create a global variable:

public var orders = [String]()

place this in-between the modules your importing (import UIKit) and the class definition:

import UIKit

public var orders = [String]()

class OrderListViewController: UITableViewController {


//viewDidLoad, etc. 
}

Then you can access the orders array in different viewControllers as you're currently trying to do.

来源：https://stackoverflow.com/questions/33900240/how-to-use-array-of-another-view-controller-class