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[SSDK-667] Add offline demo view controller (#219)
### Description Fixes SSDK-667 - Add dedicated fifth tab to MapboxSearch.xcodeproj > Demo application for trying out offline search - Remove support for `--offline` launch argument in Demo application ### Checklist - [x] Update `CHANGELOG`
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,145 @@ | ||
| import CoreLocation | ||
| import MapboxSearch | ||
| import MapboxSearchUI | ||
| import MapKit | ||
| import UIKit | ||
|
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| /// Demonstrate how to use Offline Search in the Demo app | ||
| class OfflineDemoViewController: UIViewController { | ||
| private var mapView = MKMapView() | ||
| private var messageLabel = UILabel() | ||
| private lazy var searchController = MapboxSearchController() | ||
|
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| override func viewDidLoad() { | ||
| super.viewDidLoad() | ||
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| setUpLayout() | ||
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| searchController.delegate = self | ||
| let panelController = MapboxPanelController(rootViewController: searchController) | ||
| addChild(panelController) | ||
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| enableOfflineSearch() | ||
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| // Enabling jp/ja search options for testing Japanese Address Search. | ||
| // Setting Japanese into the list of preferred languages is a way to activate it. | ||
| if Locale.preferredLanguages.contains(where: { $0.contains("ja") }) { | ||
| searchController.searchOptions = SearchOptions(countries: ["jp"], languages: ["ja"]) | ||
| } | ||
| } | ||
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| func enableOfflineSearch() { | ||
| let engine = searchController.searchEngine | ||
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| engine.setOfflineMode(.enabled) { | ||
| let descriptor = SearchOfflineManager.createDefaultTilesetDescriptor() | ||
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| let dcLocation = NSValue(mkCoordinate: CLLocationCoordinate2D( | ||
| latitude: 38.89992081005698, | ||
| longitude: -77.03399849939174 | ||
| )) | ||
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| guard let options = MapboxCommon.TileRegionLoadOptions.build( | ||
| geometry: Geometry(point: dcLocation), | ||
| descriptors: [descriptor], | ||
| acceptExpired: true | ||
| ) else { | ||
| assertionFailure() | ||
| return | ||
| } | ||
|
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| _ = engine.offlineManager.tileStore.loadTileRegion(id: "dc", options: options, progress: nil) { result in | ||
| switch result { | ||
| case .success(let region): | ||
| assert(region.id == "dc") | ||
| case .failure(let error): | ||
| print(error.localizedDescription) | ||
| assertionFailure() | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| let locationManager = CLLocationManager() | ||
|
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| override func viewDidAppear(_ animated: Bool) { | ||
| super.viewDidAppear(animated) | ||
|
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| locationManager.requestWhenInUseAuthorization() | ||
| } | ||
|
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| private func setUpLayout() { | ||
| // Set up the Map and programmatic layout | ||
| for subview in [messageLabel, mapView] { | ||
| view.addSubview(subview) | ||
| subview.translatesAutoresizingMaskIntoConstraints = false | ||
| } | ||
|
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| NSLayoutConstraint.activate([ | ||
| messageLabel.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor), | ||
| messageLabel.leadingAnchor.constraint(equalTo: view.leadingAnchor), | ||
| messageLabel.trailingAnchor.constraint(equalTo: view.trailingAnchor), | ||
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| mapView.topAnchor.constraint(equalTo: messageLabel.bottomAnchor), | ||
| mapView.leadingAnchor.constraint(equalTo: view.leadingAnchor), | ||
| mapView.trailingAnchor.constraint(equalTo: view.trailingAnchor), | ||
| mapView.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor), | ||
| ]) | ||
|
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| // Set up the help message in the navigation bar | ||
| let message = | ||
| "Offline search is available as a premium feature.\nContact Mapbox sales team for more information." | ||
|
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| messageLabel.textAlignment = .center | ||
| messageLabel.numberOfLines = 0 | ||
| messageLabel.text = message | ||
| } | ||
|
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| func showAnnotation(_ annotations: [MKAnnotation], isPOI: Bool) { | ||
| mapView.removeAnnotations(mapView.annotations) | ||
|
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| guard !annotations.isEmpty else { return } | ||
| mapView.addAnnotations(annotations) | ||
|
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| if annotations.count == 1, let annotation = annotations.first { | ||
| let delta = isPOI ? 0.005 : 0.5 | ||
| let span = MKCoordinateSpan(latitudeDelta: delta, longitudeDelta: delta) | ||
| let region = MKCoordinateRegion(center: annotation.coordinate, span: span) | ||
| mapView.setRegion(region, animated: true) | ||
| } else { | ||
| mapView.showAnnotations(annotations, animated: true) | ||
| } | ||
| } | ||
| } | ||
|
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| extension OfflineDemoViewController: SearchControllerDelegate { | ||
| func categorySearchResultsReceived(category: SearchCategory, results: [SearchResult]) { | ||
| let annotations = results.map { searchResult -> MKPointAnnotation in | ||
| let annotation = MKPointAnnotation() | ||
| annotation.coordinate = searchResult.coordinate | ||
| annotation.title = searchResult.name | ||
| annotation.subtitle = searchResult.address?.formattedAddress(style: .medium) | ||
| return annotation | ||
| } | ||
|
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| showAnnotation(annotations, isPOI: false) | ||
| } | ||
|
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| func searchResultSelected(_ searchResult: SearchResult) { | ||
| let annotation = MKPointAnnotation() | ||
| annotation.coordinate = searchResult.coordinate | ||
| annotation.title = searchResult.name | ||
| annotation.subtitle = searchResult.address?.formattedAddress(style: .medium) | ||
|
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| showAnnotation([annotation], isPOI: searchResult.type == .POI) | ||
| } | ||
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| func userFavoriteSelected(_ userFavorite: FavoriteRecord) { | ||
| let annotation = MKPointAnnotation() | ||
| annotation.coordinate = userFavorite.coordinate | ||
| annotation.title = userFavorite.name | ||
| annotation.subtitle = userFavorite.address?.formattedAddress(style: .medium) | ||
|
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| showAnnotation([annotation], isPOI: true) | ||
| } | ||
| } |