我能够为我的按钮编写一个UIAlertController,它工作正常,但是当我按下YES或OK按钮时,我不知道如何切换到不同的页面.目前,YES或OK按钮无处可去.
@IBAction func SubmitButton(sender: AnyObject) {
if a > 28.87 {
var alert = UIAlertController(title: "H4 with Guide Pins",message: "Can it be removed?",preferredStyle: UIAlertControllerStyle.Alert)
alert.addAction(UIAlertAction(title: "YES",style: UIAlertActionStyle.Default,handler: nil))
alert.addAction(UIAlertAction(title: "NO",handler: nil))
self.presentViewController(alert,animated: true,completion: nil)
}
else if data2.text == "" {
var alert = UIAlertController(title: "Dimension",message: "Missing Data Input.",preferredStyle: UIAlertControllerStyle.Alert)
alert.addAction(UIAlertAction(title: "OK",completion: nil)
}
else {
var alert = UIAlertController(title: "H4 with Guide Pins",message: "Enter Swallow Dimension.",completion: nil)
self.view.endEditing(true)
}
}
解决方法
您可以在故事板中创建一个segue,控制从场景顶部的黄色视图控制器拖动到新的视图控制器.然后在检查器中为该segue指定一个标识符.您可以从代码中的处理程序中调用它.
alert.addAction(UIAlertAction(title:"OK",style: .Default,handler: { action in self.performSegueWithIdentifier("mySegueIdentifier",sender: self) }