使用swift将数据从UITabBarView类传递到UIViewController的子类

不知道这是不是更好的方式,我已经通过这种方式传递了数据:

class TabBarController : UITabBarController, UITabBarControllerDelegate{
var unitId : Int = 0;

override func viewDidLoad() {
super.viewDidLoad()
print("TabBarVC Called")
unitId = 10;
print("Unit Id = \(unitId)")

self.delegate = self;

//Pass data to all tab controller
let MovementRepVC: MovementRep = self.viewControllers![0] as! MovementRep
MovementRepVC.id = self.unitId

let secondVC: UIViewController = self.viewControllers![1] as! UIViewController
secondVC.data = self.myData

} }

希望它能帮助你。