Swift

Two problems solved while building a Rails 8 + Hotwire Native iOS app. Real-time notification badge — instantly update the app icon badge and bell button the moment a notification is created on the server Side menu navigation failure — correctly navigate to URLs that require dynamic parameters like a resource ID 1. Background Notification Badge Without setting the badge field in APNs push notifications, no number appears on the iOS app icon. And even when notifications are read, the badge doesn’t clear. ...

Here are the problems encountered when switching from a single Navigator to the HotwireTabBarController pattern while wrapping a Rails app with Hotwire Native. Bugs that were invisible in the simulator surfaced on TestFlight, and local dev environment settings got tangled – multiple points where time was wasted. 1. HotwireTabBarController Basic Structure Instead of a single Navigator, each tab has its own independent Navigator and WKWebView. // AppTab.swift enum AppTab: String, CaseIterable { case home, ai, request var systemImage: String { switch self { case .home: return "house" case .ai: return "message" case .request: return "checkmark.circle" } } var selectedSystemImage: String { switch self { case .home: return "house.fill" case .ai: return "message.fill" case .request: return "checkmark.circle.fill" } } var url: URL { let base = AppDelegate.baseURL switch self { case .home: return base.appendingPathComponent("dashboard") case .ai: return base.appendingPathComponent("conversations") case .request: return base.appendingPathComponent("service_requests") } } var hotwireTab: HotwireTab { HotwireTab( title: "", image: UIImage(systemName: systemImage)!, selectedImage: UIImage(systemName: selectedSystemImage)!, url: url ) } } // SceneController.swift core part private lazy var tabBarController: HotwireTabBarController = { let controller = HotwireTabBarController(navigatorDelegate: self) controller.load(AppTab.allCases.map(\.hotwireTab)) // Show only tab icons, remove text controller.viewControllers?.forEach { vc in vc.tabBarItem.title = nil vc.tabBarItem.imageInsets = UIEdgeInsets(top: 6, left: 0, bottom: -6, right: 0) (vc as? UINavigationController)?.delegate = self } return controller }() To remove tab titles and keep only icons, both tabBarItem.title = nil and imageInsets adjustment are needed. Setting only title to nil leaves the icon position unchanged, looking awkward. ...