Swift 3.0如何在点击搜索栏外部时关闭搜索栏键盘

Question

正如标题所述，我想在点击搜索栏外部时隐藏键盘。类似的问题建议在touchesBegan中使用self.view.endEditing(true)，但是我没有成功。我不确定是否有其他设置需要注意，或者我是否正确设置了搜索栏。

import UIKit
import MapKit

class AddressVC: UIViewController {

    @IBOutlet weak var searchBar: UISearchBar!
    var searchCompleter = MKLocalSearchCompleter()
    var searchResults = [MKLocalSearchCompletion]()




    @IBOutlet weak var searchResultsTableView: UITableView!

    override func viewDidLoad() {
        super.viewDidLoad()

        searchBar.delegate = self
    // Do any additional setup after loading the view, typically from a nib.

        searchResultsTableView.isHidden = true

        searchCompleter.delegate = self
    }




extension AddressVC: UISearchBarDelegate {

func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {

    searchCompleter.queryFragment = searchText
}

func searchBarShouldEndEditing(_ searchBar: UISearchBar) -> Bool {
    self.searchBar.endEditing(true)
    searchBar.resignFirstResponder()
    return true
}

func searchBarShouldBeginEditing(_ searchBar: UISearchBar) -> Bool {
    searchResultsTableView.isHidden = false
    return true

}

func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
    self.view.endEditing(true)
    self.searchBar.endEditing(true)
    searchBar.resignFirstResponder()
}

func searchBarTextDidEndEditing(_ searchBar: UISearchBar) {
    searchResultsTableView.isHidden = true
    self.searchBar.endEditing(true)
    searchBar.resignFirstResponder()

}

func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
    searchBar.resignFirstResponder()
}


}

- Kevin

---

这个 https://dev59.com/-V0a5IYBdhLWcg3wzbbV#49833833 可能会有所帮助。 - Sazzad Hissain Khan

Answer 1

override func viewDidLoad() {
    super.viewDidLoad()

    let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(AddressVC.dismissKeyboard))

    //Uncomment the line below if you want the tap not not interfere and cancel other interactions.
    //tap.cancelsTouchesInView = false

    view.addGestureRecognizer(tap)

}

func dismissKeyboard() {
    //Causes the view (or one of its embedded text fields) to resign the first responder status.
    view.endEditing(true)
}

- Kevin

---

以上解决方案无法在导航控制器中的搜索栏中使用。我将view.endEditing(true)更改为self.searchBar.endEditing(true)，这样就可以了。 - DoesData