ios - 为什么当从 Alamofire 响应触发代码时 KYDrawerController 不显示？

Question

我使用 KYDrawerController 在成功登录时在主屏幕上显示侧面菜单。

我使用 Alamofire 请求用户身份验证，当响应成功时，然后打开带抽屉的主屏幕。

问题是主屏幕没有显示或登录屏幕保持静止，但是当从 Alamofire 响应外部调用代码时，它工作得很好。这是我的代码

Alamofire.request(URL_LOGIN_PHONE, method: .post, parameters: parameters).responseJSON {  response in

        switch response.result {
        case .success(let value):
            let jsonResponse = JSON(value)

            // Check if status = success
            if jsonResponse["status"] == "success" {

        // Init Drawer
        let appDelegate = UIApplication.shared.delegate as! AppDelegate

        let storyBoard = UIStoryboard.init(name: "Main", bundle: Bundle.main)

        let navVC = storyBoard.instantiateViewController(withIdentifier: "NavVC")  // is the main controller for the drawer.
        let drawerVC = storyBoard.instantiateViewController(withIdentifier: "DrawerVC")  // is the drawer, and the drawer needs a main controller

        appDelegate.drawerController.mainViewController = navVC
        appDelegate.drawerController.drawerViewController = drawerVC

        appDelegate.window?.rootViewController = appDelegate.drawerController
        appDelegate.window?.makeKeyAndVisible()

            } else {

            }

        case .failure( _):
        }

    }

Answer 1

您必须将代码放入异步闭包 block 中，如下所示

DispatchQueue.main.async {
 // Init Drawer
    let appDelegate = UIApplication.shared.delegate as! AppDelegate

    let storyBoard = UIStoryboard.init(name: "Main", bundle: Bundle.main)

    let navVC = storyBoard.instantiateViewController(withIdentifier: "NavVC")  // is the main controller for the drawer.
    let drawerVC = storyBoard.instantiateViewController(withIdentifier: "DrawerVC")  // is the drawer, and the drawer needs a main controller

    appDelegate.drawerController.mainViewController = navVC
    appDelegate.drawerController.drawerViewController = drawerVC

    appDelegate.window?.rootViewController = appDelegate.drawerController
    appDelegate.window?.makeKeyAndVisible()
}