如何使用UIPageViewController swift 3在不同的Viewcontroller中加载不同的Rest Api数据

Question

我已将Rest Api加载到不同的页面上，我已使用UIPageViewController进行了上下页面编辑，其中一个菜单页面具有“类别和子类别”，因此当我单击“类别”或“子类别”时我想这样做每当我尝试从Rest Api加载数据但无法加载其他数据时，都会从Rest Api加载不同的数据。我想加载不同的数据，在select方法中的click事件上没有问题，我的问题是数据无法更改为screenType，我在UiPageviewcontroller类中声明了Enum。

这是UIpageviewcontroller类（Swift 3）上的Enum代码：

enum ScreenType: String
{
    case home
    case appsAndSoftware 

}
var screenType: ScreenType = .home

这是Rest Api的代码，用于显示不同的数据在Tableview上使用Restkit，TutorialViewController是我的UIPageviewController类

 func GetJsonData()
{
    let objectManager = RKObjectManager(baseURL: URL(string: "/wp-json/wp/"))!

    let first =  self.storyboard?.instantiateViewController(withIdentifier: "TutorialViewController") as! TutorialViewController


    var id = "1419"


    if first.screenType == .appsAndSoftware
    {
        id = "1412"
    }
    else if first.screenType == .appsAndSoftware2
    {
        id = "1489"
    }
       let path = "v2/posts/\(id)"

    objectManager.addResponseDescriptor(RestKitHelper.getJsonData(path: path))
    objectManager.getObjectsAtPath(path, parameters: nil, success: { operation, mappingResult in

        let results: [News] = mappingResult?.array() as! [News]

        if results.count > 0{
            for receivedData in results{
                self.data.append(receivedData)
            }
        }
        DispatchQueue.main.async(execute: {
            self.sectb.reloadData()
        })

    }, failure: { operation, error in
        print("Fail")
    })


}

这是我的菜单选择方法

switch sections[section].items[row - 1]
        {
        case "Apps & Software":

            let destination = self.storyboard?.instantiateViewController(withIdentifier: "TutorialViewController") as! TutorialViewController

                destination.screenType == .appsAndSoftware


            self.navigationController?.pushViewController(destination, animated: true)

            print("Apps And Software")

            let newFrontController = UINavigationController.init(rootViewController: destination)

            revealviewcontroller.pushFrontViewController(newFrontController, animated: true)





            break

            default:

            break
        }