xcode 如何使用 Swift 检查 macOS 应用程序的复选框状态
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How do I check the state of a checkbox for macOS applications using Swift
提问by Jason M
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
任务看起来比较简单，我想要一个 if 语句来确定一个复选框是否被选中或没有明显的复选框但我不知所措
I've tried
我试过了
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 我能想到但它总是错误 EXC_BAD_INSTRUCTION 或使用错误的不能将变量类型转换为其他变量类型
回答by Leo Dabus
Xcode 9 ? Swift 4
Xcode 9？斯威夫特 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来检查它是打开还是关闭，如下所示：
switch sender.state {
case .on:
print("on")
case .off:
print("off")
case .mixed:
print("mixed")
default: break
}
回答by Giacomo Sighinolfi
i did this on my project and it worked well
我在我的项目中做了这个并且效果很好
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.
它使用常量字符串更改文本字段 (casa_ospiti_text) 的值。
