ios - Swift xcode 错误 : load controller is not allowed and autoresize not equal to views window

Question

我正在尝试创建的内容的屏幕截图:

注意:如果您决定运行该项目，则无需查看下面的代码，因为我在下面发布的所有类都位于 dropbox 压缩项目文件内。

底部的每个方 block 都选择不同的颜色，并且有一个不可见的方 block 选择绿色方 block 右侧的形状类型。用户选择其中一种形状后，用户将能够在屏幕的特定部分进行绘制。

整个项目:https://www.dropbox.com/s/f9pr0wo0j74iw4a/XcodeSwiftProject99999.zip?dl=0

如果您运行该项目，创建一个帐户，然后单击登录，然后单击其中一行，然后单击彩色框之一(红色和绿色方 block )，应用程序将崩溃并收到以下错误消息:

2016-03-11 17:06:43.580 finalProject2[11487:1058358] <UIView: 0x7faba1677710; frame = (0 0; 414 736); autoresize = W+H; gestureRecognizers = <NSArray: 0x7faba1658d90>; layer = <CALayer: 0x7faba16563f0>>'s window is not equal to <finalProject2.RowTableViewController: 0x7faba165a3c0>'s view's window!

File slot 1

File slot 2

File slot 3

File slot 4

File slot 5

File slot 6

File slot 7

File slot 8

File slot 9

File slot 10

File slot 11

File slot 12

2016-03-11 17:06:44.746 finalProject2[11487:1058358] Attempting to load the view of a view controller while it is deallocating is not allowed and may result in undefined behavior (<UIAlertController: 0x7faba16b7d60>)

MainProject场景类:

import UIKit



weak var FirstFileNameTextField: UILabel!

enum ShapeType: String

{

    case Line = "Line"

    case Ellipse = "Ellipse"

    case Rectangle = "Rectangle"

    case FilledEllipse = "Filled Ellipse"

    case FilledRectangle = "Filled Rectangle"

    case Scribble = "Scribble"

}

 let shapes: [ShapeType] = [ .Line, .Ellipse, .Rectangle, .FilledEllipse, .FilledRectangle, .Scribble ]



class MainProjectScene: UIViewController

{

     var row: Row?







    @IBAction func PressedSaveAs(sender: UIButton) //this is the save as function that I would like to know how to change



    {



        //1. Create the alert controller.



        var alert = UIAlertController(title: "Name/rename your file:", message: "Enter a filename to name/rename and save your file", preferredStyle: .Alert)



        //2. Add the text field. You can configure it however you need.



        alert.addTextFieldWithConfigurationHandler({ (textField) -> Void in



            textField.text = "Your file name"

        })



        alert.addAction(UIAlertAction(title: "OK", style: .Default, handler:

            {

                (action) -> Void in

                let textField = alert.textFields![0] as UITextField

                print("Text field: \(textField.text)")

                // rows.cell.textLabel?.text = textField.text

                CurrentFileName = textField.text!

                rows[IndexPath.row].FileName = textField.text!

                rows[IndexPath.row].UserText = self.TextUserScrollEdit.text!



        }))



        // 4. Present the alert.

        self.presentViewController(alert, animated: true, completion: nil)





      //  rows[indexPath.row].FileName = rows.cell.textLabel?.text



       // rows[i] = textField.text



               // if let detailViewController = segue.destinationViewController as? MainProjectScene {



              //  if let cell = sender as? UITableViewCell {



              //  if let indexPath = self.tableView.indexPathForCell(cell) {



               // detailViewController.row = rows[indexPath.row]



    }





    override func viewWillAppear(animated: Bool)

    {



        if let r = row

        {



            row!.FileName = r.FileName



            row!.QuartzImage = r.QuartzImage



            row!.UserText = r.UserText

            rows[IndexPath.row].UserText = self.TextUserScrollEdit.text!        }

    }





    override func  viewDidLoad()

    {

        super.viewDidLoad()

        TextUserScrollEdit.text = rows[IndexPath.row].UserText

        // FacebookButton.addTarget(self, action: "didTapFacebook", forControlEvents: .TouchUpInside)



    }



    @IBOutlet weak var TextUserScrollEdit: UITextView!

    @IBOutlet weak var NewFileButton: UIButton!

    @IBOutlet weak var TwoDQuartzButton: UIButton!

    @IBOutlet weak var YouTubeButton: UIButton!

    @IBOutlet weak var TwitterButton: UIButton!

    @IBOutlet weak var OpenFileButton: UIButton!

    @IBOutlet weak var SnapChatButton: UIButton!

    @IBOutlet weak var FacebookButton: UIButton!

    @IBAction func PressedTwoDQuartzButton(sender: UIButton) {



    }



    @IBAction func PressedSnapchatButton(sender: UIButton){



        UIApplication.sharedApplication().openURL(NSURL(string: "https://www.snapchat.com/")!)



    }



    @IBAction func PressedYouTubeButton(sender: UIButton) {



        UIApplication.sharedApplication().openURL(NSURL(string: "https://www.youtube.com/")!)



    }



    @IBOutlet weak var InstagramButton: UIButton!

    @IBAction func PressedFacebookButton(sender: UIButton) {



        UIApplication.sharedApplication().openURL(NSURL(string: "http://www.facebook.com")!)



    }

    @IBAction func PressedInstagramButton(sender: UIButton) {



        UIApplication.sharedApplication().openURL(NSURL(string: "https://www.instagram.com/")!)



    }



    @IBAction func PressedTwitterButton(sender: UIButton) {



        UIApplication.sharedApplication().openURL(NSURL(string: "https://twitter.com/")!)



    }



    @IBOutlet weak var SaveAsButton: UIButton!













      // @IBOutlet weak var shapeButton: ShapeButton!



    @IBOutlet weak var canvas: CanvasView!



        @IBOutlet var colorButtons: [UIButton]!



    @IBOutlet weak var shapeButton: ShapeButton!



        @IBAction func selectColor(sender: UIButton) {

            UIView.animateWithDuration(0.5, delay: 0.0,

                usingSpringWithDamping: CGFloat(0.25),

                initialSpringVelocity: CGFloat(0.25),

                options: UIViewAnimationOptions.CurveEaseInOut, animations: {

                    for button in self.colorButtons {

                        button.frame.origin.y = self.view.bounds.height - 58

                    }

                    sender.frame.origin.y -= 20

                }, completion: nil)

            canvas.color = sender.backgroundColor!

            shapeButton.color = sender.backgroundColor!

        }



        @IBAction func selectShape(sender: ShapeButton) {

            let title = "Select Shape"

            let alertController = UIAlertController(title: title, message: nil, preferredStyle: .ActionSheet)



            for shape in shapes {

                let action = UIAlertAction(title: shape.rawValue, style: .Default) { action in

                    sender.shape = shape

                    self.canvas.shape = shape

                }

                alertController.addAction(action)

            }

            presentViewController(alertController, animated: true, completion: nil)

        }



}

ShapeButton 类:

import UIKit





class ShapeButton: UIButton {





    let shapes: [ShapeType] = [ .Line, .Ellipse, .Rectangle, .FilledEllipse, .FilledRectangle, .Scribble ]



    var shape: ShapeType = .Line {

        didSet {

            setNeedsDisplay()

        }

    }



    var color: UIColor = UIColor.blueColor() {

        didSet {

            setNeedsDisplay()

        }

    }



    // Only override drawRect: if you perform custom drawing.

    // An empty implementation adversely affects performance during animation.

    override func drawRect(rect: CGRect) {

        // Drawing code

        let context = UIGraphicsGetCurrentContext()

        CGContextSetStrokeColorWithColor(context, color.CGColor)

        CGContextSetFillColorWithColor(context, color.CGColor)

        CGContextSetLineWidth(context, 2)



        let x1: CGFloat = 5

        let y1: CGFloat = 5

        let x2: CGFloat = frame.width - 5

        let y2: CGFloat = frame.height - 5

        let rect = CGRect(x: x1, y: y1 + 5, width: frame.width - 10, height: frame.height - 20)

        switch shape {

        case .Line:

            CGContextMoveToPoint(context, x1, y1)

            CGContextAddLineToPoint(context, x2, y2)

            CGContextStrokePath(context)

        case .Ellipse:

            CGContextStrokeEllipseInRect(context, rect)

        case .Rectangle:

            CGContextStrokeRect(context, rect)

        case .FilledEllipse:

            CGContextFillEllipseInRect(context, rect)

        case .FilledRectangle:

            CGContextFillRect(context, rect)

        case .Scribble:

            CGContextMoveToPoint(context, x1, y1)

            CGContextAddCurveToPoint(context,

                x1 + 80, y1 - 10,           // the 1st control point

                x2 - 80, y2 + 10,           // the 2nd control point

                x2, y2)           // the end point

            CGContextStrokePath(context)

        }

    }





}

Canvas View 类:

import UIKit



/*

    This program is for Xcode 6.3 and Swift 1.2

*/





class CanvasView: UIView {





    var shape: ShapeType = .Line

    var color: UIColor = UIColor.blueColor()

    var first :CGPoint = CGPointZero

    var last  :CGPoint = CGPointZero

    var points: [CGPoint] = []



    // Only override drawRect: if you perform custom drawing.

    // An empty implementation adversely affects performance during animation.

    override func drawRect(rect: CGRect) {

        // Drawing code

        let context = UIGraphicsGetCurrentContext()

        CGContextSetStrokeColorWithColor(context, color.CGColor)

        CGContextSetFillColorWithColor(context, color.CGColor)



        let rect = CGRect(x: first.x, y: first.y, width: last.x - first.x, height: last.y - first.y)

        switch shape {

        case .Line:

            CGContextMoveToPoint(context, first.x, first.y)

            CGContextAddLineToPoint(context, last.x, last.y)

            CGContextStrokePath(context)

        case .Ellipse:

            CGContextStrokeEllipseInRect(context, rect)

        case .Rectangle:

            CGContextStrokeRect(context, rect)

        case .FilledEllipse:

            CGContextFillEllipseInRect(context, rect)

        case .FilledRectangle:

            CGContextFillRect(context, rect)

        case .Scribble:

            CGContextMoveToPoint(context, first.x, first.y)

            for p in points {

                CGContextAddLineToPoint(context, p.x, p.y)

            }

            CGContextStrokePath(context)

        }

    }



    override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {

        if let touch = touches.first {

            first = touch.locationInView(self)

            last = first

            points.removeAll(keepCapacity: true)

            if shape == .Scribble {

                points.append(first)

            }

            setNeedsDisplay()

        }

    }



    override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {

        if let touch = touches.first {

            last = touch.locationInView(self)

            if shape == .Scribble {

                points.append(last)

            }

            setNeedsDisplay()

        }

    }



    override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {

        if let touch = touches.first {

            last = touch.locationInView(self)

            if shape == .Scribble {

                points.append(last)

            }

            setNeedsDisplay()

        }

    }



    override func touchesCancelled(touches: Set<UITouch>?, withEvent event: UIEvent?) {

    }




}

Answer 1

在 Storyboard中，转到 MainProjectScene 并右键单击 CanvasView。

您将有两个 CanvasView 的引用导出。

删除两个引用 socket 。现在再次选择 CanvasView 并转到身份检查器并确保 View 的类是 CanvasView

保留主 Storyboard和 MainProjectScene 并将您的 CanvasView 链接到 Storyboard中的 View ，如下所示

这解决了问题。

我只是向您介绍一下您刚刚遇到的问题的一些见解。您可能首先在代码中创建了一个 View 导出并链接它，然后将其删除。那么您必须再次创建它并链接它。执行此操作后，您的 View 上将有 2 个引用点。您需要删除刚刚删除的那个，否则代码将崩溃。