问题
I have this problem. I'm receiving a notification from CloudKit using application:didReceiveRemoteNotification in AppDelegate. I'm able to receive the recordId, fetch it, and save it successfully. The problem is, the scene doesn't refresh.
final class UserData: ObservableObject {
@Published var items: [Item] = []
func saveFetchedItem(recordId: CKRecord.ID, reason: CKQueryNotification.Reason) {
fetchAndSaveRemoteDataFromCloudKit(recordId: recordId, reason: reason, userData: self)
}
}
in AppDelegate:
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
let notification: CKNotification = CKNotification(fromRemoteNotificationDictionary: userInfo)!
if notification.notificationType == .query {
let queryNotification = notification as! CKQueryNotification
let recordId = queryNotification.recordID
let reason: CKQueryNotification.Reason = queryNotification.queryNotificationReason
/// reasons:
/// .recordCreated, .recordUpdated, .recordDeleted
UserData().saveFetchedItem(recordId: recordId!, reason: reason)
}
completionHandler(.newData)
}
In fetchAndSaveRemoteDataFromCloudKit, I'm passing the UserData in order to save the item received and it works. The problem is, I show the items on a List and the list doesn't refresh, even when I print the userData.items and the new item is there.
Is there a connection between AppDelegate and SceneDelegate in order to refresh the scene/window?
来源：https://stackoverflow.com/questions/59382727/reload-refresh-a-scene-after-receive-remote-notification-swiftui