Not able to load style in offline Mapbox Map - ios

Question

I'm working on an iOS app that shows map in offline mode. I'm using Mapbox map v10.7.0 for the same. Style pack and tile region are downloading successfully.
When map loads street data like road name, street name, place name etc. not showing on map and then if i turn on mobile data, map shows perfectly.
I don't know what i did wrong.
Here is sample code i write for downloading tile region and style pack
let dispatchGroup = DispatchGroup()
// 1. Create style package with loadStylePack() call.
let stylePackLoadOptions = StylePackLoadOptions(glyphsRasterizationMode: .ideographsRasterizedLocally,
metadata: ["tag": "my-outdoors-style-pack"],
acceptExpired: true)!
let tileStore = TileStore.default
let accessToken = ResourceOptionsManager.default.resourceOptions.accessToken
tileStore.setOptionForKey(TileStoreOptions.mapboxAccessToken, value: accessToken)
self.tileStore = tileStore
let accessToken = ResourceOptionsManager.default.resourceOptions.accessToken
offlineManager = OfflineManager(resourceOptions: ResourceOptions(accessToken: accessToken, tileStore: tileStore))
dispatchGroup.enter()
_ = offlineManager?.loadStylePack(for: .outdoors, loadOptions: stylePackLoadOptions) { [weak self] progress in
// These closures do not get called from the main thread. In this case
DispatchQueue.main.async {
print(" progress completedResourceCount/ - requiredResourceCount \(progress.completedResourceCount) / \(progress.requiredResourceCount)")
print("StylePack = \(progress)")
}
} completion: { [weak self] result in
// getting result success
DispatchQueue.main.async {
defer {
dispatchGroup.leave()
}
switch result {
case let .success(stylePack):
print("StylePack = \(stylePack)")
case let .failure(error):
print("stylePack download Error = \(error)")
}
}
}
// 2. Create an offline region with tiles for the outdoors style
let outdoorsOptions = TilesetDescriptorOptions(styleURI: .outdoors, zoomRange: UInt8(minZoom)...UInt8(maxZoom))
guard let outdoorsDescriptor = offlineManager?.createTilesetDescriptor(for: outdoorsOptions) else {
print("outdoorsDescriptor -> missing")
return
}
// Load the tile region
let tileRegionLoadOptions = TileRegionLoadOptions(
geometry: .point(Point(coord)),
descriptors: [outdoorsDescriptor],
metadata: userInfo,
acceptExpired: true)!
// Use the the default TileStore to load this region. You can create
// custom TileStores are are unique for a particular file path, i.e.
// there is only ever one TileStore per unique path.
dispatchGroup.enter()
_ = tileStore.loadTileRegion(forId: tileRegionId, loadOptions: tileRegionLoadOptions) { progress in
// These closures do not get called from the main thread. In this case
// we're updating the UI, so it's important to dispatch to the main
// queue.
DispatchQueue.main.async {
// Update the progress bar
print("Download progress : ")
print(Float(progress.completedResourceCount) / Float(progress.requiredResourceCount))
}
} completion: { result in
//getting result success
DispatchQueue.main.async {
defer {
dispatchGroup.leave()
}
switch result {
case let .success(tileRegion):
print("tileRegion = \(tileRegion)")
print(" tileRegion progress completedResourceCount/ - requiredResourceCount \(tileRegion.completedResourceCount) / \(tileRegion.requiredResourceCount)")
case let .failure(error):
print("tileRegion download Error = \(error)")
}
}
}
// Wait for both downloads before moving to the next state
dispatchGroup.notify(queue: .main) {
print("notify download complete")
}
Code for showing mapview:
let mapView = MapView(frame: view.bounds)
mapView.mapboxMap.loadStyleURI(.outdoors)
self.view.addSubview(mapView)
result i'm getting before turning on mobile data:
after turning on mobile data