FCM 通知问题 - swift3.

Question

我已经在我的项目中成功添加了Firebase和通知。使用此通知即将到来，我可以通过点击该通知来访问它们。但问题是，如果我的应用程序已关闭，我会收到通知，现在没有点击它，我清除了它。现在我的数据库中没有插入任何数据。如何将所有通知保留在队列中，以便在下次打开应用程序时直接访问。提前谢谢。

class AppDelegate: UIResponder, UIApplicationDelegate , CLLocationManagerDelegate , FIRMessagingDelegate , UNUserNotificationCenterDelegate {
var window: UIWindow?
var locationManager = CLLocationManager()
var utill = FencingUtil()
var wrap = WrapperApi()
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
if launchOptions != nil{
let userInfo = launchOptions?[UIApplicationLaunchOptionsKey.remoteNotification]
if userInfo != nil {
self.handleUserInfo(userinfo: userInfo as! [AnyHashable : Any])
// Perform action here
}
}
self.locationManager.delegate = self
self.locationManager.requestWhenInUseAuthorization()
self.locationManager.distanceFilter = 50.0; // Will notify the LocationManager every 100 meters
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
GMSServices.provideAPIKey("AIzaSyDNoFY_sbP9j-ObZx06B_rmjcCVrCM_ZP0")
GMSPlacesClient.provideAPIKey("AIzaSyDNoFY_sbP9j-ObZx06B_rmjcCVrCM_ZP0")
FIRApp.configure()
// var db: SQLiteDatabase
let dataStore = SQLiteDataStore.sharedInstance
do {
try dataStore.createTables()
}
catch _{}
if #available(iOS 10.0, *) {
let center = UNUserNotificationCenter.current()
center.delegate = self
center.requestAuthorization(options: [.badge, .sound, .alert], completionHandler: {(grant, error)  in
if error == nil {
if grant {
application.registerForRemoteNotifications()
} else {
//User didn't grant permission
}
} else {
print("error: ",error)
}
})
// For iOS 10 display notification (sent via APNS)
} else {
let settings: UIUserNotificationSettings =
UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
application.registerUserNotificationSettings(settings)
}
application.registerForRemoteNotifications()
return true
}
@available(iOS 10.0, *)
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
print("Handle push from foreground")
// custom code to handle push while app is in the foreground
//print("(notification.request.content.userInfo)")
self.handleUserInfo(userinfo: notification.request.content.userInfo)
}
@available(iOS 10.0, *)
func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
print("Handle push from background or closed")
// if you set a member variable in didReceiveRemoteNotification, you will know if this is from closed or background
self.handleUserInfo(userinfo: response.notification.request.content.userInfo)
}
func applicationReceivedRemoteMessage(_ remoteMessage: FIRMessagingRemoteMessage)
{
print("%@", remoteMessage.appData)
}
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any])
{ self.application(application, didReceiveRemoteNotification: userInfo) { (UIBackgroundFetchResult) in }
print ("dasdasd")
}
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any],
fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
self.handleUserInfo(userinfo: userInfo)
}
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
FIRInstanceID.instanceID().setAPNSToken(deviceToken, type: FIRInstanceIDAPNSTokenType.sandbox)
FIRInstanceID.instanceID().setAPNSToken(deviceToken, type: FIRInstanceIDAPNSTokenType.prod)

}
func tokenRefreshNotificaiton(_ notification: Foundation.Notification) {
guard let refreshedToken = FIRInstanceID.instanceID().token()
else {
return
}
//refreshedToken = FIRInstanceID.instanceID().token()!
print("InstanceID token: (refreshedToken)")
utill.tokenDefault.setValue(refreshedToken, forKey: "tokenId")
// Connect to FCM since connection may have failed when attempted before having a token.
connectToFcm()
}
// [START connect_to_fcm]
func connectToFcm() {
FIRMessaging.messaging().connect { (error) in
if (error != nil) {
print("Unable to connect with FCM. (String(describing: error))")
} else {
//print("Connected to FCM.")
}
}
}}

Answer 1

如果你正在启动你的应用程序，那么你可以在didFinishLaunchingWithOptions方法中获取通知对象，试试这个。 未清除来自通知中心的通知。

if (launchOptions != nil) {
if let remoteNotification = launchOptions?
[UIApplicationLaunchOptionsKey.remoteNotification]  {
let objNotification = remoteNotification as! [AnyHashable : 
Any]
}
}