键盘完成键操作迅速的iOS无法正常工作 [英] keyboard done key action swift iOS doesn't work

问题描述

我是stackoverflow的新手，我对新的快速代码有疑问. 我已经使用完成"自定义了键盘上的返回按钮，但是当我点击它时，不要掉下任何东西……如何隐藏点击它的键盘? 我添加了一个代码(可在此站点上找到)，以便在您单击某处而不是在键盘中时隐藏键盘，但是我无法通过单击完成"按钮来自定义它……谢谢！！

I'm new in stackoverflow, I have a problem with new swift code. I have custom the return button on keyboard with "Done", but when I tap on it, don't befall anything... How can I hide the keyboard on tap it? I have added a code (found on this site) for hide the keyboard when you tap somewhere ,not in the keyboard, but I can't custom it with tap on "done" button... Thank you before!!

推荐答案

您需要实现在单击完成"按钮时调用的委托方法:

You need to implement delegate method which is called when you hit done button:

func textFieldShouldReturn(_ textField: UITextField) -> Bool {
    textField.resignFirstResponder()
    return true
}

您还需要遵守UITextFieldDelegate协议:

You also need to conform to UITextFieldDelegate protocol:

// I assume you override UIViewController class. If not add UITextFieldDelegate to your class
class MyViewController: UIViewController, UITextFieldDelegate

最后一件事是将您的类设置为文本字段委托:

The last thing is set up your class to be a text field delegate:

textField.delegate = self

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