I send APNs notifications to my devices with the CloudKit dashboard. I test with two devices;
Device with Silent Push Working Successfully:
iOS version 16.5.1 (c), Model iPhone Xs
Silent Push Failed Device:
iOS version 15.3.1, Model iPhone Xr
Normal alert notifications work successfully on both devices. But I can't see any log in my project even though silent push is sent successfully on one device.
What I've Checked:
-
content-availableis set to1. -
My app is not in kill state, it is in foreground or pending in the background.
-
When I send simple notifications, I can see logs in my swift project and notifications on physical devices without any problem.
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No, my certificate has not expired and if there was a problem with it, I would not be able to see the normal notifications.
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My phone is not in power saving mode and the “Background App Refresh” option is turned on in the app's settings.
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Both devices in charging state.
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App capabilities: Background Modes is enabled with
Remote Notifications,Background Fetch,Background Processing.
CloudKit Dashboard After Sending Silent Push:
My AppDelegate Class In Swift Project:
import SwiftUI
import UIKit
import UserNotifications
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) { granted, error in
if granted {
DispatchQueue.main.async {
UIApplication.shared.registerForRemoteNotifications()
}
}
}
return true
}
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
let tokenParts = deviceToken.map { data in String(format: "%02.2hhx", data) }
let token = tokenParts.joined()
print("Device Token: \(token)")
}
func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
print("Failed to register: \(error)")
}
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
logInfo("Received Push Notification: \(userInfo)")
if let aps = userInfo["aps"] as? [String: AnyObject], aps["content-available"] as? Int == 1 {
logInfo("This is a silent push notification")
//DO SOME WORK
completionHandler(.newData)
}
completionHandler(.newData)
}
}
