iOS TextField收取键盘的方法

今天闲下来，没有其他的事情，整理了一下几种TextField收取键盘的方法，其实也非常的简单

1.通过注册第一响应者，myTextField?.resignFirstResponder()，代码如下：

class ViewController: UIViewController {var myTextField:UITextField?override func viewDidLoad() {super.viewDidLoad()myTextField=UITextField(frame: CGRect(x: 100, y: 200, width: 100, height: 50))myTextField?.placeholder="Context"//弹出键盘myTextField?.becomeFirstResponder();self.view.addSubview(myTextField!)}//点击屏幕的时候，就会相应改事件override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {//收回键盘myTextField?.resignFirstResponder()}

2.取消当前页面的编辑状态

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {//收回键盘self.view.endEditing(false)}

3.设置返回按键

class ViewController: UIViewController,UITextFieldDelegate, UITextViewDelegate{var myTextField:UITextField?override func viewDidLoad() {super.viewDidLoad()myTextField=UITextField(frame: CGRect(x: 100, y: 200, width: 100, height: 50))myTextField?.placeholder="Context"//弹出键盘myTextField?.becomeFirstResponder();myTextField?.delegate=selfmyTextField?.returnKeyType=UIReturnKeyType.doneself.view.addSubview(myTextField!)}//点击Do的时候，就会相应改事件func textFieldShouldReturn(_ textField: UITextField) -> Bool {myTextField?.resignFirstResponder()return true}

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