swift - 仅当键盘处于事件状态时，点击背景才能关闭 TextField 键盘

Question

我设置为十进制键盘的文本字段一直存在问题，因为它的十进制键盘没有返回键，所以我必须点击背景才能关闭它。我只想允许它在键盘打开时识别该点击。目前，只要您点击背景，它就会识别它。任何帮助都会很棒，谢谢。

 override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {

    self.view.endEditing(true)
    label.text = "tapped"
}

Answer 1

您可以添加此扩展程序，它对我有用:

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)
    }
}

然后将这个self.hideKeyboardWhenTappedAround()放入viewDidLoad

 override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        view.endEditing(true)
    }