登錄后，情節提要在主控制器上返回nil

Question

我使用的是一個名為Main Storyboard，當我嘗試從登錄屏幕重定向（推送）到主屏幕時，在ViewDidLoad主屏幕上，我得到了self.storyboard為nil因此UI扭曲（視圖，按鈕，標簽是更改其位置）。 我經常遇到此問題，但並非每次都遇到。

誰能幫助我，將不勝感激。

Answer 1

let sb = UIStoryboard(name: "Main", bundle: nil)
let moveController = sb.instantiateViewController(withIdentifier: "StartViewController ") as! StartViewController 
self.navigationController?.pushViewController(moveController, animated: true)

Answer 2

請嘗試以下code

    let storyboard = UIStoryboard(name: "Main", bundle: nil)
    if storyboard != nil{
           let VC = storyboard.instantiateViewController(withIdentifier: "HomeViewController") as! HomeViewController
           self.navigationController?.pushViewController(VC, animated: true)
    }

如果不告訴我，希望您能找到解決方案

Answer 3

嘗試這個

let startViewController = UIStoryboard.init(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "StartViewController") as? StartViewController
self.navigationController?.pushViewController(startViewController!, animated: true)