如何在Swift 4中以编程方式向按钮添加IBAction? [英] How do I add a IBAction to a button programmatically in Swift 4?

问题描述

如何以编程方式向按钮添加IBAction?

How do I add a IBAction to a button programmatically?

button.addTarget(self, action: Selector(("buttonAction:")), for: 
.touchUpInside)

func buttonAction(sender: Any) {
    print("test")
}

这给了我一个"线程1:信号SIGABRT "错误.

That gives me an "Thread 1: signal SIGABRT" error.

推荐答案

Swift 4版本:

Swift 4 version:

button.addTarget(self, action: #selector(action(sender:)), for: .touchUpInside)

@objc private func action(sender: Button) {
    print("test")
}

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