override func viewDidLoad() {
super.viewDidLoad()
self.tiledLayer = AGSArcGISTiledLayer(URL: NSURL(string: "http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer")!)
let map = AGSMap(basemap: AGSBasemap(baseLayer: self.tiledLayer))
self.mapView.map = map
initiateDownload()
}
private func initiateDownload() {
//initialize the export task
self.exportTask = AGSExportTileCacheTask(URL: self.tiledLayer.URL!)
self.exportTask.exportTileCacheParametersWithAreaOfInterest(?????, minScale: ????, maxScale: ????){ [weak self] (params: AGSExportTileCacheParameters?, error: NSError?) in
if let error = error {
SVProgressHUD.showErrorWithStatus(error.localizedDescription, maskType: .Gradient)
}
else {
self?.exportTilesUsingParameters(params!)
}
}
}
private func exportTilesUsingParameters(params: AGSExportTileCacheParameters) {
//destination path for the tpk, including name
let path = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0]
let destinationPath = "\(path)/myTileCache.tpk"
//get the job
self.job = self.exportTask.exportTileCacheJobWithParameters(params, downloadFileURL: NSURL(string: destinationPath)!)
//run the job
self.job.startWithStatusHandler({ (status: AGSJobStatus) -> Void in
//show job status
SVProgressHUD.showWithStatus(status.statusString(), maskType: .Gradient)
}) { [weak self] (result: AnyObject?, error: NSError?) -> Void in
self?.downloading = false
if let error = error {
SVProgressHUD.showErrorWithStatus(error.localizedFailureReason, maskType: .Gradient)
}
else {
//hide progress view
SVProgressHUD.dismiss()
self?.visualEffectView.hidden = false
}
}
}
