Hi folks,
I am downloading some images from Firebase and adding them to main bundle resources, after which I use them. I am having trouble with making my code to wait for the downloads to get complete before it executes the next statement.
I tried completion handlers, async/await but still the same.
Not sure if I am doing it the right way.
Can anyone help what is the correct approach for this scenario.
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
// Create a session configuration
let configuration = ARImageTrackingConfiguration()
Task{
await self.checkForDownloads.refreshResources(forUser: self.username)
}
if let trackedImages = ARReferenceImage.referenceImages(inGroupNamed: "AR Resources", bundle: Bundle.main){
configuration.trackingImages = trackedImages
configuration.maximumNumberOfTrackedImages = 1
print("Images Found: \(trackedImages.count)")
}
sceneView.session.run(configuration)
}
func refreshResources(forUser username: String) async {
//..
}
I am expecting checkForDownloads.refreshResources to finish downloading first, then proceed to next statement.
