如何使用Swift检查macOS应用程序的复选框的状态

The task seemed relatively simple, I wanted an if statement to determine if a check box is checked or not apparently check boxes but am at a loss

任务似乎相对简单,我想要一个if语句来确定复选框是否被选中或者显然没有复选框但是我不知所措

I've tried

if checkbox.state == everythign i can think of but it always errors either EXC_BAD_INSTRUCTION or using wrong cant convert variable type to other variable type

如果checkbox.state == everythign我可以想到但它总是错误EXC_BAD_INSTRUCTION或使用错误的cant转换变量类型到其他变量类型

2 个解决方案

#1

Xcode 9 • Swift 4

Xcode 9•Swift 4

You can switch the checkbox state property to check if it is on or off as follow:

您可以切换复选框状态属性以检查它是否打开或关闭,如下所示:

switch sender.state {
case .on:
    print("on")
case .off:
    print("off")
case .mixed:
    print("mixed")
default: break
}

#2

i did this on my project and it worked well

我在我的项目上做到了这一点并且效果很好

if sender.state == .on{
            casa_ospiti_text.stringValue = "CASA"
        }
        else{
            casa_ospiti_text.stringValue = "OSPITI"
        }

where it changes the value of a textfield (casa_ospiti_text) with constants strings.

它用常量字符串改变textfield(casa_ospiti_text)的值。

#1