試圖隱藏另一個視圖上的按鈕，具體取決於在快速xcode中選擇的segue

Question

嘗試隱藏另一個視圖上的按鈕，具體取決於所選的segue路徑。因此，例如，如果選擇「AddNewPokemon」segue，則在下一個視圖頁面上顯示UIButton.hidden = true。

if segue.identifier == "AddNewPokemon" { 

    let navigationController = segue.destinationViewController as! UINavigationController 
    let controller = navigationController.topViewController as! PokedexDetailsViewController 

    controller.cancelButtonDelegate = self 
    controller.delegate = self 

我已經嘗試瀏覽過去一小時的stackoverflow，但無濟於事，相當新的迅速。

https://d2vlcm61l7u1fs.cloudfront.net/media%2F4f4%2F4f4e42db-282d-46af-af14-6265be903c99%2FphpxgnWkQ.png

Answer 1

if segue.identifier == "AddNewPokemon" { 
let navigationController = segue.destinationViewController as! UINavigationController 
let controller = navigationController.topViewController as! PokedexDetailsViewController 

//add line set the value created in PokedexDetailsViewController ie hideButton = true 

controller.hideButton = true 

controller.cancelButtonDelegate = self 
controller.delegate = self 

} 

創建PokedexDetailsViewController控制器一個變種hideButton並將其設置在用於準備賽格瑞真和在PokedexDetailsViewController viewDidLoad中檢查（）方法，如果真，那麼隱藏。

希望這可以幫助你。

感謝