UISwitch setOn(:，animated :)不能作为文档使用 [英] UISwitch setOn(:, animated:) does not work as document

问题描述

在Apple文档中， UISwitch 的函数 setOn(on:Bool，动画:Bool)不发送操作.在iOS 10之前，它可以正常工作，但是在iOS 10中调用它后，它将发送操作.在"ValueChanged"事件中调用它以强制切换回去，因此我两次获得了该事件的操作.是iOS 10中的错误吗?

As Apple's document write, UISwitch's function setOn(on: Bool, animated: Bool) does not send action. It works fine before iOS 10, but it will send action after I call it in iOS 10. I call it in "ValueChanged" event to force switch back, so I got this event action twice. is it a bug in iOS 10?

推荐答案

DispatchQueue.main.async {
    sender.setOn(flag, animated: animated)
}

它在Xcode 8中对我有效.

it works for me in Xcode 8.

但直接在主线程上调用 UISwitch.setOn(_:animated:)无效.

but call UISwitch.setOn(_:animated:) directly on main thread doesn't work.

感谢@codiction:

thanks to @codiction:

UISwitch.setOn(_:animated:)可以在主线程上调用直接，但不能在iOS 10上的UISwitch ValueChanged操作中直接调用.

UISwitch.setOn(_:animated:) can be called direclty on main thread, but can't be called directly in UISwitch ValueChanged action on iOS 10.

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