How to handle background fetch failure in iOS 16 using Swift?
I keep running into I'm not sure how to approach I've been working on this all day and I've been researching this but I'm wondering if anyone has experience with This might be a silly question, but I'm relatively new to this, so bear with me. I'm sure I'm missing something obvious here, but I'm relatively new to this, so bear with me... I'm working on an iOS app that implements background fetch to update data when the app is in the background. I've set up the necessary capabilities and included the `UIBackgroundModes` key in the Info.plist. However, I'm working with an scenario where the background fetch sometimes doesn't trigger as expected, and when it does, it's returning a `UIBackgroundFetchResult.failed` despite my fetching logic seeming correct. My implementation looks like this: ```swift import UIKit @main class AppDelegate: UIResponder, UIApplicationDelegate { func application(_ application: UIApplication, performFetchWithCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) { fetchData { newData in if newData { completionHandler(.newData) } else { completionHandler(.failed) } } } func fetchData(completion: @escaping (Bool) -> Void) { // Simulated data fetching logic let success = Bool.random() // Randomly simulating success or failure print("Fetch success: \(success)") completion(success) } } ``` I've also tried adjusting the fetch interval using `UIApplication.shared.setMinimumBackgroundFetchInterval()`, but the behavior remains inconsistent. In the logs, I see entries like `Background fetch failed due to lack of data`, which isn't very helpful. I've ensured that my app has enough background time and network access, and I'm testing on an iPhone 12 running iOS 16. Is there a best practice for implementing background fetch in such scenarios, or any insights on debugging this scenario? Are there specific conditions under which the background fetch might unexpected result, and how can I better handle these situations? I'm working on a API that needs to handle this. This is part of a larger service I'm building. Any ideas what could be causing this? For context: I'm using Swift on macOS. What am I doing wrong? Any ideas how to fix this? For context: I'm using Swift on macOS. Has anyone dealt with something similar? What's the correct way to implement this? I'm on Ubuntu 20.04 using the latest version of Swift. What's the best practice here? My development environment is Windows 10. Any suggestions would be helpful.