轉換功能與通用型SWIFT 2〜3迅速

-2

我已經開始學習斯威夫特3幾個星期，我有一個項目，我必須轉換從斯威夫特2斯威夫特3.轉換功能與通用型SWIFT 2〜3迅速

我讀過許多文件，但我不知道如何轉換這個功能（我不知道要搜索的關鍵字）。

func pickImageFromCamera<T: UIViewController(_ delegate: T) where T: protocol<UIImagePickerControllerDelegate, UINavigationControllerDelegate>(){ 
    if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.camera){ 
     let myPickerController = UIImagePickerController() 
     myPickerController.delegate = delegate; 
     myPickerController.sourceType = UIImagePickerControllerSourceType.camera 
     delegate.present(myPickerController, animated: true, completion: nil) 
    } 
}

它提供了以下錯誤信息：

expected '>' to complete generic argument list

更新：這是原代碼：

func pickImageFromCamera<T: UIViewController where T: protocol<UIImagePickerControllerDelegate, UINavigationControllerDelegate>>(delegate: T){ 
    if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera){ 
     let myPickerController = UIImagePickerController() 
     myPickerController.delegate = delegate; 
     myPickerController.sourceType = UIImagePickerControllerSourceType.Camera 
     delegate.presentViewController(myPickerController, animated: true, completion: nil) 
    } 
}

有人能幫助我嗎？非常感謝。

來源

2017-04-25 thaotruong58

請用您試圖使用的Swift 3代碼編輯您的問題，並清楚地指出您遇到問題的部分。 – rmaddy

'協議<>'表示法不再使用。 – matt

對不起。我已經更新了這個問題。我認爲代碼已部分轉換，但尚未完全。 – thaotruong58

當我第一次遇到它時，我掙扎於這個自我。

func pickImageFromCamera(){ 
    if UIImagePickerController.isSourceTypeAvailable(.camera){ 
     let myPickerController = UIImagePickerController() 
     myPickerController.delegate = self 
     myPickerController.sourceType = .camera 
     self.present(myPickerController, animated: true, completion: nil) 
    } 
}

來源

2017-04-25 17:20:00 MwcsMac

你可以用'.camera'代替'UIImagePickerControllerSourceType.camera'。 – rmaddy

@maddy Yup，I忘了解決，謝謝指出。 – MwcsMac

你錯過了一個。 – rmaddy

謝謝大家，我找到了解決方案。因爲自動轉換會使這個功能變得如此混亂。

func pickImageFromCamera<T: UIViewController>(delegate: T) where T: UIImagePickerControllerDelegate & UINavigationControllerDelegate { 
    if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.camera){ 
     let myPickerController = UIImagePickerController() 
     myPickerController.delegate = delegate; 
     myPickerController.sourceType = UIImagePickerControllerSourceType.camera 
     delegate.present(myPickerController, animated: true, completion: nil) 
    } 
}

來源

2017-04-26 00:59:29 thaotruong58

轉換功能與通用型SWIFT 2〜3迅速

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