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我正在使用Firebase和我的IOS应用程序，并试图设置推送通知。如何在应用程序处于后台（ios）时获取FCM通知？
目前我能够接收推送通知，而我的应用程序在前台，但是当我把它放在后台我无法收到任何。
在我的应用功能中，我启用了推送通知以及后台模式部分中的远程通知。
我目前使用的邮差发送以下POST请求：
https://fcm.googleapis.com/fcm/send
Content-Type:application/json
Authorization:key=<my_server_key>
{ "to" : "token_id",
"priority":"high",
"data":{
"title":"mytitle",
"body":"mybody",
"url":"myurl"
},
"notification":{
"title":"mytitle",
"body":"mybody",
"content_available": true
}
}
后，我送我收到的200状态和以下响应请求：
{
"multicast_id": 7920502412622407470,
"success": 1,
"failure": 0,
"canonical_ids": 0,
"results": [
{
"message_id": "0:1469561276461379%345a0fe5f9fd7ecd"
}
]
}
我跟着这两个设置发送接收消息的指南：
https://firebase.google.com/docs/cloud-messaging/ios/client#receive_messages_through_messaging
https://firebase.google.com/docs/cloud-messaging/ios/certs
这里是我的AppDelegate文件：
AppDelegate.swift
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
override init(){
// Configure Firebase
FIRApp.configure()
// Mantain data offline (persists state)
FIRDatabase.database().persistenceEnabled = true
}
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Register for remote notifications
if #available(iOS 8.0, *) {
// [START register_for_notifications]
let settings: UIUserNotificationSettings = UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
application.registerUserNotificationSettings(settings)
application.registerForRemoteNotifications()
// [END register_for_notifications]
} else {
// Fallback
let types: UIRemoteNotificationType = [.Alert, .Badge, .Sound]
application.registerForRemoteNotificationTypes(types)
}
// Add observer for InstanceID token refresh callback.
NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(self.tokenRefreshNotification), name: kFIRInstanceIDTokenRefreshNotification, object: nil)
// Override point for customization after application launch
return FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
}
func application(application: UIApplication, didRegisterUserNotificationSettings notificationSettings: UIUserNotificationSettings) {
if notificationSettings.types != .None {
application.registerForRemoteNotifications()
}
}
func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
let refreshedToken = FIRInstanceID.instanceID().token()!
print("InstanceID token:", refreshedToken)
}
func application(application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: NSError) {
print("Failed to register:", error)
}
func application(application: UIApplication, openURL url: NSURL,
sourceApplication: String?,
annotation: AnyObject) -> Bool {
return FBSDKApplicationDelegate.sharedInstance().application(
application,
openURL: url,
sourceApplication: sourceApplication,
annotation: annotation)
}
func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject],
fetchCompletionHandler completionHandler: (UIBackgroundFetchResult) -> Void) {
FIRMessaging.messaging().appDidReceiveMessage(userInfo)
// Print full message.
print("%@", userInfo)
}
func tokenRefreshNotification(notification: NSNotification) {
let refreshedToken = FIRInstanceID.instanceID().token()!
print("InstanceID token: \(refreshedToken)")
// Connect to FCM since connection may have failed when attempted before having a token.
connectToFcm()
}
func connectToFcm() {
FIRMessaging.messaging().connectWithCompletion { (error) in
if (error != nil) {
print("Unable to connect with FCM. \(error)")
} else {
print("Connected to FCM.")
}
}
}
func applicationWillResignActive(application: UIApplication) {
// Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
// Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}
func applicationDidEnterBackground(application: UIApplication) {
// Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
// If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
FIRMessaging.messaging().disconnect()
print("Disconnected from FCM.")
}
func applicationWillEnterForeground(application: UIApplication) {
// Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
}
func applicationDidBecomeActive(application: UIApplication) {
// Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
FBSDKAppEvents.activateApp()
connectToFcm()
}
func applicationWillTerminate(application: UIApplication) {
// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}
}
