override func viewDidLoad() { super.viewDidLoad() //Looks for single or multiple taps. let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self,action: "dismissKeyboard") //Uncomment the line below if you want the tap not not interfere and cancel other interactions. //tap.cancelstouchesInView = false view.addGestureRecognizer(tap) } //Calls this function when the tap is recognized. func dismissKeyboard() { //Causes the view (or one of its embedded text fields) to resign the first responder status. view.endEditing(true) }
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编辑:如果要在多个UIViewControllers中使用此功能,这里是另一种方法来执行此任务:
// Put this piece of code anywhere you like extension UIViewController { func hideKeyboardWhenTappedAround() { let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self,action: #selector(UIViewController.dismissKeyboard)) view.addGestureRecognizer(tap) } func dismissKeyboard() { view.endEditing(true) } }
现在在每个UIViewController,所有你要做的是调用此函数:
override func viewDidLoad() { super.viewDidLoad() self.hideKeyboardWhenTappedAround() }
这个函数作为一个标准函数包含在我的仓库,其中包含了很多有用的Swift扩展,像这样,检查:https://github.com/goktugyil/EZSwiftExtensions
原文地址:https://www.jb51.cc/swift/321786.html
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