ios - 如何快速刷新 Firebase 推送通知
问题描述
当用户在第一次调用以下方法时将应用程序安装到他的设备中时,我在我的应用程序中使用了 firebase 推送通知。
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
//Firebase Configure
FirebaseApp.configure()
if #available(iOS 10.0, *) {
// For iOS 10 display notification (sent via APNS)
UNUserNotificationCenter.current().delegate = self
let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
UNUserNotificationCenter.current().requestAuthorization(
options: authOptions,
completionHandler: {_, _ in })
} else {
let settings: UIUserNotificationSettings =
UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
application.registerUserNotificationSettings(settings)
}
Messaging.messaging().delegate = self
application.registerForRemoteNotifications()
return true
}
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any]) {
Messaging.messaging().appDidReceiveMessage(userInfo)
// Print message ID.
if let messageID = userInfo[gcmMessageIDKey] {
print("Message ID: \(messageID)")
}
// Print full message.
print(userInfo)
}
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any],
fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
// Print message ID.
if let messageID = userInfo[gcmMessageIDKey] {
print("Message ID: \(messageID)")
}
// Print full message.
print(userInfo)
completionHandler(UIBackgroundFetchResult.newData)
}
func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String) {
print("Firebase registration token: \(fcmToken)")
let dataDict:[String: String] = ["token": fcmToken]
NotificationCenter.default.post(name: Notification.Name("FCMToken"), object: nil, userInfo: dataDict)
// TODO: If necessary send token to application server.
defaultValues.set(fcmToken, forKey: "FCMToken")
defaultValues.synchronize()
}
@available(iOS 10, *)
extension AppDelegate : UNUserNotificationCenterDelegate {
// Receive displayed notifications for iOS 10 devices.
func userNotificationCenter(_ center: UNUserNotificationCenter,
willPresent notification: UNNotification,
withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
let userInfo = notification.request.content.userInfo
// With swizzling disabled you must let Messaging know about the message, for Analytics
// Messaging.messaging().appDidReceiveMessage(userInfo)
// Print message ID.
if let messageID = userInfo[gcmMessageIDKey] {
print("Message ID: \(messageID)")
}
// Print full message.
print(userInfo)
// Change this to your preferred presentation option
completionHandler([.alert])
}
}
// MARK: - Push Notification MessagingDelegate methods.
extension AppDelegate: MessagingDelegate{
func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String) {
print("Firebase registration token: \(fcmToken)")
let dataDict:[String: String] = ["token": fcmToken]
NotificationCenter.default.post(name: Notification.Name("FCMToken"), object: nil, userInfo: dataDict)
// TODO: If necessary send token to application server.
defaultValues.set(fcmToken, forKey: "FCMToken")
defaultValues.synchronize()
//Call Sending device info to api.
}
func messaging(_ messaging: Messaging, didRefreshRegistrationToken fcmToken: String) {
defaultValues.set(fcmToken, forKey: "FCMToken")
defaultValues.synchronize()
//Call Sending device info to api.
Helper.shared.appDelegate.SendingDeviceInfo()
}
func messaging(_ messaging: Messaging, didReceive remoteMessage: MessagingRemoteMessage) {
print("Message data:", remoteMessage.appData)
}
}
当用户按下登录按钮时,我点击了 api。但我的问题是当用户注销并再次登录相同的 api 时再次点击但使用 nil fcm 令牌。在注销时,我清除所有默认数据。我们如何解决这个问题任何人都对我有帮助。
这是我的注销代码
func loggout(){
//logout and reset root controller - Delete all userdefaults data.
SVProgressHUD.dismiss()
//Clear All Default values
let domain = Bundle.main.bundleIdentifier!
defaultValues.removePersistentDomain(forName: domain)
defaultValues.synchronize()
setRootControllerBeforeLogin()
}
我使用此方法将 fcm 令牌发送到服务器我在登录按钮操作中调用此方法。
func SendingDeviceInfo(){
let fcmvalue = defaultValues.string(forKey: "FCMToken") ?? ""
let param:[String:Any] = ["registerID":fcmvalue]
WebService.shared.apiDataPostMethod(url: deviceInfoURL, parameters: param) { (response, error) in
if error == nil
{
print(param)
}else{
// print(error?.localizedDescription)
}
}
}
解决方案
只有在调用 register 进行推送通知时才会调用 firebase 的 didReceiveRegistrationToken 。
您的问题- 当您注销时,您会清除 UserDefaults,因此“FCMToken”的值为零
解决方案- 1. 首先不需要从 UserDefaults 中清除“FCMToken”,因为下次启动应用程序时您将获得相同的令牌(并非总是如此)。Firebase 令牌可以随时更改,但不会很快更改。还有一件事,如果你安装应用程序并第一次运行,它总是会生成新的令牌。
- 当您注销并再次登录时,再次调用注册推送通知(Firebase)。您将再次获得令牌,但更改更多的是您将获得相同的令牌。
编辑 您可以在删除之前从 UserDefaults 获取 token 的值,然后再分配它。
let token = UserDefaults.standard.value(forKey: "FCMToken")
if let appDomain = Bundle.main.bundleIdentifier {
UserDefaults.standard.removePersistentDomain(forName: appDomain)
}
UserDefaults.standard.set(token, forKey: "FCMToken")
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