当我按下searchbar的时候，如何让键盘消失?-HowtomakekeyboarddismisswhenipressoutofsearchbaronSwift?

38  

try this :

试试这个:

self.mySearchController.searchBar.endEditing(true)

replace mySearchController with your created controller name.. If you did not create it programmatically but instead you just dragged a search bar from library then IBoutlet your searchable to your class and reference it as:

用您创建的控制器名称替换mySearchController。如果你没有以编程方式创建它，而是从库中拖拽一个搜索栏，然后将你的searchable放到你的类中，并将其引用为:

self.mySearchBar.endEditing(true)

11  

Tested and working!

测试和工作!

func searchBarSearchButtonClicked(searchBar: UISearchBar) 
{
    searchActive = false;
    self.mySearchBar.endEditing(true)
}

5  

 func searchBarSearchButtonClicked(searchBar: UISearchBar) {

        searchActive = false;
        searchProject.resignFirstResponder()
    }

This method will be invoked when user click search button on keyboard.So here we can dismiss keyboard.I think this is the right method.

当用户单击键盘上的search按钮时，将调用此方法。这里我们可以解散键盘。我认为这是正确的方法。

2  

Firstly, Apple's UISearchBarDelegate is the correct solution to hide keyboard when users click a search button while UISearchBar's instance is the first responder (learn UIResponder). In short, searchBarSearchButtonClicked(_:) is what you need for this task.

首先，当用户点击搜索按钮时，苹果的UISearchBarDelegate是隐藏键盘的正确解决方案，而UISearchBar的实例是第一响应者(学习UIResponder)。简而言之，searchbarsearchbuttonclick(_:)是这个任务所需要的。

func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
    searchBar.resignFirstResponder() // hides the keyboard.
    doThingsForSearching()
}

If it doesn't work, check, does your controller conform to UISearchBarDelegate and secondly, does UISearchBarDelegate know about your class implementation (if you don't quite understand what am I talking about, you should learn delegation pattern starting to read here):

如果它不起作用，检查，你的控制器是否符合UISearchBarDelegate，其次，UISearchBarDelegate知道你的类实现(如果你不明白我在说什么，你应该学习授权模式开始在这里阅读):

class YourAwesomeViewController: UIViewController, UISearchBarDelegate { // pay attention here

    @IBOutlet weak var yourSearchBar: UISearchBar!

    override func viewDidLoad() {
        super.viewDidLoad()
        self.yourSearchBar.delegate = self // and it's important too
    }
}

Further, if you need to hide the keyboard touching outside of search bar without touching the search button (the user may change his mind to search something), UITapGestureRecognizer is a simple way too to deal with that.

此外，如果你需要在搜索栏外隐藏触摸键盘而不触及搜索按钮(用户可能会改变主意去搜索某个东西)，UITapGestureRecognizer也是一种简单的处理方法。

1. Ctrl-drag a Tap Gesture Recognizer from the Object Library to your View Controller.
2. ctrl -拖动从对象库到视图控制器的Tap手势识别器。

2. Ctrl-drag the recently added Tap Gesture Recognizer from the document outline in the storyboard to your class implementation as IBAction.
3. ctrl -拖动最近添加的Tap手势识别器，从故事板中的文档大纲到类实现中作为IBAction。

3. Finally, write a code:
4. 最后,编写代码:

@IBAction func tapToHideKeyboard(_ sender: UITapGestureRecognizer) { self.yourSearchBar.resignFirstResponder() }

@IBAction func tapToHideKeyboard(_ sender: UITapGestureRecognizer) {self.yourSearchBar.resignFirstResponder()}

Also, don't forget to create @IBOutlet for the search bar to have an access inside your class implementation.

另外，不要忘记为搜索栏创建@IBOutlet，以便在类实现中具有访问权限。

Both variants above work well in my project.

以上两种变体在我的项目中都运行良好。

1  

Swift 4+:

斯威夫特4 +:

You can try, creating a tap gesture and add in the self.view

您可以尝试创建一个tap手势并添加到self.view中

let singleTapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(self.singleTap(sender:)))
singleTapGestureRecognizer.numberOfTapsRequired = 1
singleTapGestureRecognizer.isEnabled = true
singleTapGestureRecognizer.cancelsTouchesInView = false
self.view.addGestureRecognizer(singleTapGestureRecognizer)

and in selector func you call self.searchBar.resignFirstResponder

在selector func中你调用self。searchbar。resignfirstresponder

@objc func singleTap(sender: UITapGestureRecognizer) {
    self.searchBar.resignFirstResponder()
}

0  

we can do this with following methods

我们可以使用以下方法来实现这一点

    func searchBarTextDidBeginEditing(searchBar: UISearchBar) {
        searchBar.showsCancelButton = true;
    }

    func searchBarTextDidEndEditing(searchBar: UISearchBar) {
        searchBar.showsCancelButton = false;
    }

0  

class MaCaveViewController: UIViewController, UISearchBarDelegate {

    @IBOutlet weak var SearchBar: UISearchBar!

    override func viewDidLoad() {
        super.viewDidLoad()
        SearchBar.delegate = self
    }

    // When button "Search" pressed
    func searchBarSearchButtonClicked(_ searchBar: UISearchBar){
        print("end searching --> Close Keyboard")
        self.SearchBar.endEditing(true)
    }
}

This works very well for me.

这对我很有效。