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fix: Support background refresh on iOS (#344)
This change adds background refresh to iOS (with a requested frequency of 15m) to try to ensure the app is up to date on first launch. Ideally this would be combined with work like #359 to ensure we're as lightweight as we can be when performing updates.
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,74 @@ | ||
| // Copyright (c) 2022-2024 Jason Morley | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in all | ||
| // copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| // SOFTWARE. | ||
|
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| import BackgroundTasks | ||
| import SwiftUI | ||
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| #if os(iOS) | ||
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| class AppDelegate: NSObject, UIApplicationDelegate { | ||
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| let applicationModel = ApplicationModel() | ||
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| @MainActor func application(_ application: UIApplication, | ||
| didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool { | ||
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| // Background refresh handler. | ||
| BGTaskScheduler.shared.register(forTaskWithIdentifier: "uk.co.jbmorley.builds.tasks.refresh", using: nil) { task in | ||
| Task { | ||
| await self.applicationModel.refresh() | ||
| task.setTaskCompleted(success: true) | ||
| } | ||
| } | ||
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| NotificationCenter.default.addObserver(forName: UIApplication.didEnterBackgroundNotification, | ||
| object: nil, | ||
| queue: nil) { _ in | ||
| DispatchQueue.main.async { [weak self] in | ||
| self?.scheduleBackgroundRefresh() | ||
| } | ||
| } | ||
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| return true | ||
| } | ||
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| func scheduleBackgroundRefresh() { | ||
| let request = BGAppRefreshTaskRequest(identifier: "uk.co.jbmorley.builds.tasks.refresh") | ||
| request.earliestBeginDate = Date(timeIntervalSinceNow: 15 * 60) | ||
| do { | ||
| print("Scheduling background refresh...") | ||
| try BGTaskScheduler.shared.submit(request) | ||
| print("Success!") | ||
| } catch { | ||
| print("Could not schedule app refresh: \(error)") | ||
| } | ||
| } | ||
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| } | ||
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| #else | ||
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| @MainActor class AppDelegate: NSObject, NSApplicationDelegate { | ||
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| let applicationModel = ApplicationModel() | ||
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| } | ||
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| #endif |