通过方法混淆，我成功地使用更新的Firebase云消息传递，在我的应用委托中的didReceiveRemoteNotification方法中接收有效负载，当我的应用程序处于前台时。然而，尽管API响应消息已成功发送（见下文），但我在后台运行应用程序时没有接收到任何类型的有效负载并且didReceiveRemoteNotification未被调用。
以下是我向FCM API发送触发推送通知的请求：https://fcm.googleapis.com/fcm/send
{
"to": "{valid-registration-token}",
"priority":"high", //others suggested setting priority to high would fix, but did not
"notification":{
"body":"Body3",
"title":"test"
}
}
{
"multicast_id": 6616533575211076304,
"success": 1,
"failure": 0,
"canonical_ids": 0,
"results": [
{
"message_id": "0:1468906545447775%a4aa0efda4aa0efd"
}
]
}
这是我的appDelegate代码
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
Fabric.with([Crashlytics.self])
FIRApp.configure()
NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(self.tokenRefreshNotification),
name: kFIRInstanceIDTokenRefreshNotification, object: nil)
return true
}
func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject], fetchCompletionHandler completionHandler: (UIBackgroundFetchResult) -> Void) {
// Let FCM know about the message for analytics etc.
FIRMessaging.messaging().appDidReceiveMessage(userInfo)
// Print full message.
print("%@", userInfo)
// handle your message
// let localNotification = UILocalNotification()
// localNotification.fireDate = NSDate()
// let notification = userInfo["notification"]!
// localNotification.alertBody = notification["body"] as? String
// localNotification.alertTitle = notification["title"] as? String
// localNotification.timeZone = NSTimeZone()
// application.scheduleLocalNotification(localNotification)
}
func tokenRefreshNotification(notification: NSNotification) {
let refreshedToken = FIRInstanceID.instanceID().token()!
print("InstanceID token: \(refreshedToken)")
LoginVC.registerForPushNotifications()
connectToFcm()
}
//foreground messages
func applicationDidBecomeActive(application: UIApplication) {
connectToFcm()
}
// [START disconnect_from_fcm]
func applicationDidEnterBackground(application: UIApplication) {
FIRMessaging.messaging().disconnect()
print("Disconnected from FCM.")
}
func connectToFcm() {
FIRMessaging.messaging().connectWithCompletion { (error) in
if (error != nil) {
print("Unable to connect with FCM. \(error)")
} else {
print("Connected to FCM.")
}
}
}
}
我在我的应用程序的后续流程中调用此代码以请求权限
static func registerForPushNotifications() {
let settings: UIUserNotificationSettings =
UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
UIApplication.sharedApplication().registerUserNotificationSettings(settings)
UIApplication.sharedApplication().registerForRemoteNotifications()
}
既然我能在应用程序前台收到通知，我就假设这可以消除我未上传apns证书或注册令牌不正确的所有担忧。如果不是这种情况，请评论并让我重新研究。我可能忽略了一些简单的东西，但是如何在应用程序处于后台时获取通知呢？谢谢。