我正在尝试使用FCM token 将简单的推送通知从Firebase通知控制台发送到特定设备。 Firebase通知控制台将通知显示为已发送,但设备未收到该通知。我尝试发送通知,然后等待查看控制台是否从didReceiveRemoteNotification
日志,但是通知花费的时间(小时)太长,无法显示为在Firebase控制台中发送(即使将优先级设置为high
)。
应用程序委托(delegate)
import UIKit
import Firebase
import FirebaseStorage
import FirebaseDatabase
import FirebaseMessaging
import CoreData
import UserNotifications
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate {
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
// Use Firebase library to configure APIs
FirebaseApp.configure()
/////
// For Firebase Cloud Messaging (FCM)
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)
}
application.registerForRemoteNotifications()
// End of [for Firebase Cloud Messaging (FCM)]
/////
return true
}
///////////////////////
// FCM Setup
// Monitor token generation for FCM: Be notified whenever the FCM token is updated
func messaging(_ messaging: Messaging, didRefreshRegistrationToken fcmToken: String) {
print("Firebase registration token: \(fcmToken)")
}
// Monitor token generation for FCM:
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
Messaging.messaging().apnsToken = deviceToken
} // Handle messages received through the FCM APNs interface
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any]) {
print("didReceiveRemoteNotification")
// If you are receiving a notification message while your app is in the background,
// this callback will not be fired till the user taps on the notification launching the application.
// TODO: Handle data of notification
// With swizzling disabled you must let Messaging know about the message, for Analytics
// Messaging.messaging().appDidReceiveMessage(userInfo)
// Print message ID.
// gcm_message_id
if let messageID = userInfo["gcmMessageIDKey"] {
print("Message ID: \(messageID)")
}
^我的猜测是,该问题可能与“gcm_message_id”/“gcmMessageId”/“gcm.message_id”有关,因为在我下面尝试的三种方法中,每种方法都不相同
// Print full message.
print(userInfo)
}
// Handle messages received through the FCM APNs interface
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
print("didReceiveRemoteNotification (withCompletionHandeler)")
// If you are receiving a notification message while your app is in the background,
// this callback will not be fired till the user taps on the notification launching the application.
// TODO: Handle data of notification
// 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)")
}
^我的猜测是,该问题可能与“gcm_message_id”/“gcmMessageId”/“gcm.message_id”有关,因为在我下面尝试的三种方法中,每种方法都不相同
// Print full message.
print(userInfo)
completionHandler(UIBackgroundFetchResult.newData)
}
// End of [FCM Setup]
///////////////////////
}
View Controller
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Retrieve the current registration token for Firebase Cloud Messaging (FCM)
let token = Messaging.messaging().fcmToken
print("FCM token: \(token ?? "")")
}
}
权利和启用推送通知
我已经添加了推送权利
发送通知的方法
我正在从Firebase通知控制台创建通知(如下所示),因此通知本身的结构应该没有问题。
我尝试了以下方法来解决此问题,但是所有方法都产生了相同的结果:
有人知道为什么将通知在Firebase通知控制台中标记为已发送但未显示在设备上吗?
最佳答案
在使用推送通知时,我使用了一些故障排除步骤:
希望这对您有所帮助,对您有所帮助。