在搜索栏外单击时使键盘消失 - SWIFT

Question

我有一个 UIViewController，我嵌入了一个搜索栏和一个集合视图。当我按下搜索栏时，键盘出现。如果用户决定通过点击屏幕上除搜索栏以外的任何位置来改变主意，我想隐藏此键盘。我尝试了以下但没有成功：

添加点击手势识别器

使用'self.mySearchBar.endEditing(true)'

class CollectionViewFolder: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate ,UICollectionViewDelegateFlowLayout, UISearchBarDelegate{

/*** OUTLETS ***/
@IBOutlet weak var mySearchBar: UISearchBar!


// 1. I have tried adding a Tap Gesture Recognizer
// TAP ON SCREEN LISTENER
@IBAction func tapOnScreen(_ sender: UITapGestureRecognizer) {
   print("tap tap ...")
   self.mySearchBar.resignFirstResponder()
}



// 2.  Added the following to the viewDidLoad:
override func viewDidLoad() {
   super.viewDidLoad()

   self.mySearchBar.endEditing(true)
 }

}

Answer 1

您可以使用此扩展程序。

extension UIViewController {
    func hideKeyboardWhenTappedAround() {
        let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(UIViewController.dismissKeyboard))
        tap.cancelsTouchesInView = false
        view.addGestureRecognizer(tap)
    }

    @objc func dismissKeyboard() {
        view.endEditing(true)
    }
}

用法。在你的 viewController:

override func viewDidLoad() {
    super.viewDidLoad()

    hideKeyboardWhenTappedAround()
}

在搜索栏外单击时使键盘消失 - SWIFT

Make keyboard disappear when clicking outside of Search Bar - SWIFT

ios

searchbar

swift