在iOS 7.1的Swift中取消存档.sks文件 [英] Unarchiving .sks file in Swift for iOS 7.1

问题描述

我有一个可以使用以下扩展名从iOS 8中的.sks文件很好地加载的应用程序:

I have an app which loads nicely from an .sks file in iOS 8 using the following extension:

class func unarchiveFromFile(file : NSString) -> SKNode?
{
    if let path = NSBundle.mainBundle().pathForResource(file as String, ofType: "sks")
    {
        var sceneData = NSData(contentsOfFile: path, options: .DataReadingMappedIfSafe, error: nil)!
        var archiver = NSKeyedUnarchiver(forReadingWithData: sceneData)

        archiver.setClass(self.classForKeyedUnarchiver(), forClassName: "SKScene")
        let scene = archiver.decodeObjectForKey(NSKeyedArchiveRootObjectKey) as! GameScene
        archiver.finishDecoding()
        return scene
    }
    else
    {
        return nil
    }
}

但是，当我将其与运行iOS 7.1的设备一起使用时，我在AppDelegate上获得了EXC_BAD_ACCESS代码EXC_I386_GPFLT，并在日志中获得了此代码:

However, when I use this with devices running iOS 7.1, I get a EXC_BAD_ACCESS code EXC_I386_GPFLT on the AppDelegate and this in the log:

SKTexture:加载图像资源:"MissingResource.png"时出错

SKTexture: Error loading image resource: "MissingResource.png"

我认为问题可能在于sks文件未正确加载.谁能告诉我如何从sks文件加载场景?

I believe the issue may be the sks file being improperly loaded. Could anyone tell me how I can load my scene from the sks file?

感谢您的帮助，

推荐答案

有趣的是，我设法通过检查iOS 8之前的版本是否正在运行来解决此问题.如果是这样，我将加载游戏场景，然后将其复制.这可以通过某种方式解决该问题:

Interestingly I managed to solve this issue by checking whether pre-iOS 8 was running. If so, I would load the game scene and then copy it. This solves the issue somehow:

        let tempScene = GameScene.unarchiveFromFile(gameSceneFile) as? GameScene
        scene = tempScene!.copy() as! GameScene

这篇关于在iOS 7.1的Swift中取消存档.sks文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！