使用定时器解除UIAlertController



如果未点击OK按钮,则在几秒钟后解除UIAlertController.Style.actionSheet

我试着在显示actionSheet后立即设置一个计时器来调用一个方法来消除它,但它没有关闭它

这是我的代码:

func showActionSheet(){

let alert = UIAlertController(title: "Some Tile", message: "Some Message", preferredStyle: UIAlertController.Style.actionSheet)
alert.addAction(UIAlertAction(title: "OK", style: UIAlertAction.Style.cancel, handler: {
action in
self.closeSheetView()
}))
self.present(alert, animated: true, completion: nil)
timer = Timer.scheduledTimer(timeInterval: 2 , target: self, selector: #selector(self.closeSheetView), userInfo: nil, repeats: false)
}
@objc func closeSheetView(){
self.dismiss(animated: true, completion: nil)
}

仅供参考-似乎调用了closeSheetView方法,但图纸视图没有关闭。

我只是在我的项目中做这件事,没有定时器,我使用延迟,也许它会为你工作。。。!

let alert = UIAlertController(title: "", message: "alert disappears after 5 seconds", preferredStyle: .alert)
self.present(alert, animated: true, completion: nil)
// here it work for 5 sec
let when = DispatchTime.now() + 5
DispatchQueue.main.asyncAfter(deadline: when){
// your code with delay
alert.dismiss(animated: true, completion: nil)
}

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