ios - getting user location and creating map not in sync -


the below code getting user current location , creating mapbox map. problem mapbox map being created before users location obtain. how may slow or sync process? thank in advance,

  import uikit   import corelocation   import mapboxgl   class aviewcontroller: uiviewcontroller, cllocationmanagerdelegate {    var manager:cllocationmanager!    var userlocation:cllocation = cllocation(latitude: 25.776243, longitude: -80.136509)  override func viewdidload() {     super.viewdidload()      println("inside viewdidload")     self.getuserlocation() }//eom  override func viewdidappear(animated: bool) {     println("inside viewdidappear")    self.createmapboxmap() } override func didreceivememorywarning() {     super.didreceivememorywarning()     // dispose of resources can recreated. }   /*** mapbox functions ************************************************************************/     /*create preliminary map */     func createmapboxmap(){         // set access token         let mapview = mglmapview(frame: view.bounds, accesstoken: "pk.eyj1ijoizgfya2zhzgvyiiwiysi6ilplvdhfr3mifq.ppez732qs8g0wescditakg")          mapview.autoresizingmask = .flexiblewidth | .flexibleheight          // set map's center coordinate         mapview.setcentercoordinate(cllocationcoordinate2d(latitude: self.userlocation.coordinate.latitude, longitude: self.userlocation.coordinate.longitude),             zoomlevel: 13, animated: false)         view.addsubview(mapview)          //showing user location on map - blue dot         mapview.showsuserlocation = true     }//eom   /*** location functions ************************************************************************/     /*getting user current location*/     func getuserlocation(){         self.manager = cllocationmanager()         self.manager.delegate = self         self.manager.desiredaccuracy = kcllocationaccuracybest         self.manager.requestwheninuseauthorization()         self.manager.startupdatinglocation()     }//eom      /*location manager 'didupdatelocations' function */     func locationmanager(manager: cllocationmanager!, didupdatelocations locations: [anyobject]!) {         self.manager.stopupdatinglocation() //stop getting user location         println(locations)          self.userlocation = locations[0] as! cllocation      }//eom      /* errors occurred */     func locationmanager(manager: cllocationmanager!, didfailwitherror error: nserror) {         println("error:" + error.localizeddescription)     }//eom

}//eoc

location manager running asynchronously (expected behavior), means returns , finishes creating map create map box method called. however, doesn't mean map has gotten location yet. i'm thinking best way implement move self.createmapboxmap() inside didupdatelocations , try that. experience, want creation of view happen in callback asynchronous method this. might want have type of loading view though, because user confused @ first.


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