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问题:
I do like below in Swift 2. But It's not working in Swift 3. How Can I provide this? If someone explain this It would be great.
didFinishLaunchingWithOptions
let notificationSettings = UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
UIApplication.sharedApplication().registerUserNotificationSettings(notificationSettings)
application.registerForRemoteNotifications()
and
func application(application: UIApplication, didRegisterUserNotificationSettings notificationSettings: UIUserNotificationSettings) {
if notificationSettings.types != .None {
application.registerForRemoteNotifications()
}
}
func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {
print("Meesage ID \(userInfo["gcm_message_id"]!)")
print(userInfo)
}
I can do simple local notification but, I couldn't remote push notification from Firebase.
I tried
UNUserNotificationCenter.currentNotificationCenter().delegate = self
UNUserNotificationCenter.currentNotificationCenter().requestAuthorizationWithOptions([.Alert, .Badge, .Sound]) { (success, error:NSError?) in
if success {
print("Notification access true!")
application.registerForRemoteNotifications()
}
else {
print(error?.localizedDescription)
}
}
and
func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {
print("Meesage ID \(userInfo["gcm_message_id"]!)")
print(userInfo)
}
still doesn't work.
回答1:
The AppDelegate method names have changed a little and UserNotifications framework has been introduced. You must use this framework for notifications in iOS 10 and above as the other methods are being deprecated.
import UserNotifications
...
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
...
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound]) { (granted, error) in
// Enable or disable features based on authorization.
}
application.registerForRemoteNotifications()
return true
}
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> ()) {
print("Message ID \(userInfo["gcm.message_id"]!)")
print(userInfo)
}
...
}
Registering for Push Notifications in Xcode 8/Swift 3.0?
回答2:
It is very important to remember that there may be different devices that run different versions of the iOS, and they may have different notification capabilities. I understand that the previous answer does point in the right direction.
We need to import FirebaseInstanceID
, if we are to receive instance, or event based notifications. Such notifications are like the ones that pop-up when someone retweets our post, or likes a post, or a message notification.
However, if someone is looking for the complete code that goes into the didFinishLaunchingWithOptions
function in AppDelegate
, here it is:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
FIRApp.configure()
if #available(iOS 10.0, *) {
let authOptions : UNAuthorizationOptions = [.Alert, .Badge, .Sound]
UNUserNotificationCenter.currentNotificationCenter().requestAuthorizationWithOptions(
authOptions, completionHandler: {_,_ in })
} else {
// Fallback on earlier versions
let settings: UIUserNotificationSettings =
UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
application.registerUserNotificationSettings(settings)
application.registerForRemoteNotifications()
}
application.registerForRemoteNotifications()
// Add observer for InstanceID token refresh callback.
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) {
// This is required if you are receiving a notification message while your app is in the background, which is the most common case!!
print("Message ID: \(userInfo["gcm.message_id"]!)")
print("%@", userInfo)
}
func tokenRefreshNotification(notification: NSNotification) {
if let refreshedToken = FIRInstanceID.instanceID().token() {
print("InstanceID token: \(refreshedToken)")
}
connectToFcm()
}
func connectToFcm() {
FIRMessaging.messaging().connectWithCompletion { (error) in
if (error != nil) {
print("Unable to connect with FCM. \(error)")
} else {
print("Connected to FCM.")
}
}
}
func applicationDidBecomeActive(application: UIApplication) {
connectToFcm()
}
func applicationDidEnterBackground(application: UIApplication) {
FIRMessaging.messaging().disconnect()
print("Disconnected from FCM.")
}
回答3:
This is what works for me Xcode 8, Swift 3.
Inside didFinishLaunchingwithOptions func in AppDelegate.swift
if #available(iOS 10.0, *) {
let authOptions : UNAuthorizationOptions = [.alert, .badge, .sound]
UNUserNotificationCenter.current().requestAuthorization(
options: authOptions,
completionHandler: {granted, error in
print(granted)
})
// For iOS 10 display notification (sent via APNS)
UNUserNotificationCenter.current().delegate = self
// For iOS 10 data message (sent via FCM)
FIRMessaging.messaging().remoteMessageDelegate = self
} else {
let settings: UIUserNotificationSettings =
UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
application.registerUserNotificationSettings(settings)
}
application.registerForRemoteNotifications()
FIRApp.configure()
// [START set_messaging_delegate]
FIRMessaging.messaging().remoteMessageDelegate = self
// [END set_messaging_delegate]
And the Delegates required to receive notifications from firebase:
@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
// Print message ID.
print("Message ID: \(userInfo["gcm.message_id"]!)")
// Print full message.
print("%@", userInfo)
let aps = userInfo["aps"] as! [String: Any]
let notificationMessage = aps["alert"] as! String // processed content from notificaton
}
}
extension AppDelegate : FIRMessagingDelegate {
// Receive data message on iOS 10 devices.
func applicationReceivedRemoteMessage(_ remoteMessage: FIRMessagingRemoteMessage) {
print("%@", remoteMessage.appData)
}
}