UIViewController容器未顯示ChildViewController

Question

我嘗試實現一個左側面板，但是無論何時實現，似乎除了容器之外什么都不會顯示。

這是我的代碼如下：

override func viewDidLoad() {
    super.viewDidLoad()
    initCenter(screen: showVC)
}

func initCenter(screen: ShowWhichVC) {
    var presetingController: UIViewController
    showVC = screen

    if dashboardVC == nil {
        dashboardVC = UIStoryboard.dashboardController()
        dashboardVC.delegate = self
    }
    presetingController = dashboardVC
    if let con = centerController {
        con.view.removeFromSuperview()
        con.removeFromParentViewController()
    }
    centerController = presetingController
    view.addSubview(centerController.view)
    self.addChildViewController(centerController)
    centerController.didMove(toParentViewController: self)
}



private extension UIStoryboard {

    class func mainStoryboard() -> UIStoryboard {
        return UIStoryboard(name: "Main", bundle: Bundle.main)
    }

    class func leftPanelController() -> LeftPanelController? {
        return mainStoryboard().instantiateViewController(withIdentifier: "LeftPanelController") as? LeftPanelController
    }

    class func dashboardController() -> DashboardController? {
        return mainStoryboard().instantiateViewController(withIdentifier: "DashboardController") as? DashboardController
    }
}

注意： DashboardController和LeftPanelController UI是用編程方式編寫的，這與它有關嗎？ 謝謝！

更新GMS

2018-06-24 02:05:46.791965+0800 Pegasus[32657:577667] Google Maps SDK for iOS and Google Places API for iOS version: 2.7.30514.0 2018-06-24 02:05:46.808461+0800 Pegasus[32657:577704] TIC Read Status [2:0x0]: 1:57 2018-06-24 02:05:46.808596+0800 Pegasus[32657:577704] TIC Read Status [2:0x0]: 1:57

我認為現在它與GMSMapview有關

Answer 1

我找到了解決方案！ 在對其進行徹底檢查時，我發現將centerController視圖大小設置為0 ，所以我要做的是向其添加一個與屏幕大小綁定的大小。

centerController.view.frame = CGRect(x: 0, y: 0, width: self.view.bounds.width, height: self.view.bounds.height)