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Swift MCQs

How to get userinfo from NSNotification in swift 3?

func downloadProgress(notification:NSNotification){ if let userInfo = notification.userInfo as NSDictionary { print(userInfo) // [AnyHashable("progressPercentage"): 0.82530790852915281] if let progressValue = userInfo["progressPercentage"] as? Float { if progressValue > 0.01{ } } } }

func downloadProgress(notification:NSNotification){ if let userInfo = notification.userInfo as [String: Any] { print(userInfo) if let progressValue = userInfo["progressPercentage"] as? Float { if progressValue > 0.01{ } } } }

func downloadProgress(notification:NSNotification){ if let userInfo = notification.userid as NSDictionary { print(userInfo) // [AnyHashable("progressPercentage"): 0.82530790852915281] if let progressValue = userInfo["progressPercentage"] as? Float { if progressValue > 0.01{ } } } }

All of the them

Answer

Correct Answer: func downloadProgress(notification:NSNotification){ if let userInfo = notification.userInfo as [String: Any] { print(userInfo) if let progressValue = userInfo["progressPercentage"] as? Float { if progressValue > 0.01{ } } } }

Explanation:

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