如何获得返回键以执行与Swift中的按钮按下相同的操作？ [英] How do I get the return key to perform the same action as a button press in Swift?

问题描述

我想知道如何通过按下软件键盘上的返回键或点击UIButton来允许操作。

I want to know how you allow an action to be made by either pressing the return key on the software keyboard or by tapping a UIButton.

UI按钮是已设置为执行IBAction。

The UI button is already set up to perform an IBAction.

如何让用户按键盘上的返回键执行相同的操作？

How do I also allow users to press the return key on the keyboard to perform the same action?

推荐答案

确保您的类扩展了UITextFieldDelegate协议

Make sure your class extends the UITextFieldDelegate protocol

SomeViewControllerClass : UIViewController, UITextFieldDelegate

您可以执行以下操作：

override func viewDidLoad() {
    super.viewDidLoad()

    self.textField.delegate = self
}

func textFieldShouldReturn(textField: UITextField) -> Bool {

    //textField code

    textField.resignFirstResponder()  //if desired
    performAction()
    return true
}

func performAction() {   
    //action events
}

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