UITextField键盘隐藏

import UIKit
class ViewController: UIViewController,UITextFieldDelegate {
   
   override func viewDidLoad() {
       super.viewDidLoad()
       
       self.view.backgroundColor=UIColor.green
       let textField = UITextField(frame: CGRect(x: 10, y: 160, width: 200, height: 30))
       //设置边框样式为圆角矩形
       textField.borderStyle = UITextBorderStyle.roundedRect
       textField.returnKeyType = UIReturnKeyType.done
       textField.delegate=self
       self.view.addSubview(textField)
   }
   func textFieldShouldReturn(_ textField: UITextField) -> Bool {
       //收起键盘
       textField.resignFirstResponder()
       //打印出文本框中的值
       print(textField.text)
       return true;
   }

}

s
UITextField

通知
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