我是
swift和XCode的新手所以请原谅我可能非常混乱的代码!
运行我的代码时,我收到以下警告:
警告:尝试出示已经出现的内容
运行我的代码时,我收到以下警告:
警告:尝试出示已经出现的内容
我已经检查了论坛并发现了一个关于该问题的帖子….我应用了建议的帮助,如:
if presentedViewController !== nil { self.presentViewController(alertController,animated: true,completion: nil) } else{ self.dismissViewControllerAnimated(false,completion: nil) self.presentViewController(alertController,completion: nil) }
但是,它仍然给了我同样的警告….所以我想我一定做错了.如果有人可以帮助我,那将是很棒的:)如果有任何关于我如何“清理”我的代码的建议,我感激不尽:)
import UIKit class ViewController: UIViewController { @IBOutlet var Label: UILabel! @IBOutlet var ukFlag: UITextView! @IBOutlet var movie: UITextView! @IBOutlet var piano: UITextView! @IBOutlet var book: UITextView! @IBOutlet var dance: UITextView! @IBOutlet var paint: UITextView! @IBOutlet var row: UITextView! @IBOutlet var envelope: UITextView! @IBOutlet var dragon: UITextView! @IBOutlet var instagram: UITextView! func londonPuzzle(sender: UIPanGestureRecognizer) { let translation = sender.translationInView(self.view) sender.view!.center = CGPoint(x: sender.view!.center.x + translation.x,y: sender.view!.center.y + translation.y) sender.setTranslation(CGPointZero,inView: self.view) self.ifCollided() } func misleadOne(sender: UIPanGestureRecognizer) { let translation = sender.translationInView(self.view) sender.view!.center = CGPoint(x: sender.view!.center.x + translation.x,inView: self.view) self.ifCollided() } func bestival(sender: UIPanGestureRecognizer) { let translation = sender.translationInView(self.view) sender.view!.center = CGPoint(x: sender.view!.center.x + translation.x,inView: self.view) self.ifCollided() } func rosieProject(sender: UIPanGestureRecognizer) { let translation = sender.translationInView(self.view) sender.view!.center = CGPoint(x: sender.view!.center.x + translation.x,inView: self.view) self.ifCollided() } func misleadTwo(sender: UIPanGestureRecognizer) { let translation = sender.translationInView(self.view) sender.view!.center = CGPoint(x: sender.view!.center.x + translation.x,inView: self.view) self.ifCollided() } func misleadThree(sender: UIPanGestureRecognizer) { let translation = sender.translationInView(self.view) sender.view!.center = CGPoint(x: sender.view!.center.x + translation.x,inView: self.view) self.ifCollided() } func misleadFour(sender: UIPanGestureRecognizer) { let translation = sender.translationInView(self.view) sender.view!.center = CGPoint(x: sender.view!.center.x + translation.x,inView: self.view) self.ifCollided() } func voucher(sender: UIPanGestureRecognizer) { let translation = sender.translationInView(self.view) sender.view!.center = CGPoint(x: sender.view!.center.x + translation.x,inView: self.view) self.ifCollided() } func welsh(sender: UIPanGestureRecognizer) { let translation = sender.translationInView(self.view) sender.view!.center = CGPoint(x: sender.view!.center.x + translation.x,inView: self.view) self.ifCollided() } func hulk(sender: UIPanGestureRecognizer) { let translation = sender.translationInView(self.view) sender.view!.center = CGPoint(x: sender.view!.center.x + translation.x,inView: self.view) self.ifCollided() } func ShowAlertWrong(){ let alertController = UIAlertController(title: "Sorry",message: " Guess again!",preferredStyle: .Alert) let okAction = UIAlertAction( title: "Ok",style: UIAlertActionStyle.Default) { UIAlertAction in self.ukFlag.center = CGPointMake(150,225) self.movie.center = CGPointMake(150,225) self.piano.center = CGPointMake(150,225) self.dance.center = CGPointMake(150,225) self.paint.center = CGPointMake(150,225) self.row.center = CGPointMake(150,225) self.envelope.center = CGPointMake(150,225) self.dragon.center = CGPointMake(150,225) self.instagram.center = CGPointMake(150,225) } let resetAction = UIAlertAction( title: "Reset",style: UIAlertActionStyle.Default) { UIALertAction in self.ukFlag.center = CGPointMake(150,225) } alertController.addAction(okAction) alertController.addAction(resetAction) self.presentViewController(alertController,completion: nil) } func ShowAlertWin(){ let alertController = UIAlertController(title: "Congrats 原文链接:https://www.f2er.com/iOS/331216.html