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목록check empty (1)
도래울
Loop through subview to check for empty UITextField - Swift
for view in self.view.subviews as! [UIView] { if let textField = view as? UITextField { if textField.text == "" { // show error return } } }See "Downcasting" in the Swift book.Update for Swift 2: As of Swift 2/Xcode 7 this can be simplified.Due to the Objective-C "lightweight generics", self.view.subviews is already declared as [UIView] in Swift, therefore the cast is not necessary anymore.Enume..
개발/iOS
2016. 7. 13. 09:16