ios - How do I set the initial scene in a sprite kit project? -

i have 2 skscenes gamescene , menuscene , default scene appears when open app gamescene want menuscene appear first

i tried change code in gameviewcontroller:

import uikit import spritekit  extension sknode {     class func unarchivefromfile(file : string) -> sknode? {         if let path = nsbundle.mainbundle().pathforresource(file, 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! menuscene             archiver.finishdecoding()             return scene         } else {             return nil         }     } }  class gameviewcontroller: uiviewcontroller {      override func viewdidload() {         super.viewdidload()          if let scene = menuscene.unarchivefromfile("menuscene") as? menuscene {             // configure view.             let skview = self.view as! skview             skview.showsfps = true             skview.showsnodecount = true              /* sprite kit applies additional optimizations improve rendering performance */             skview.ignoressiblingorder = true              /* set scale mode scale fit window */             scene.scalemode = .aspectfill              skview.presentscene(scene)         }     } 

but shows grey screen not scene, there else need make?

is menuscene sks file? not, have swift file scene.

if understand correctly, unarchiver takes sks file , unarchives it, @ "unarchivefromfile" method, see if statement, , else returns nil.

you can this:

if let scene = new menuscene() { 

instead of unarchive. otherwise make sks version of menuscene file.