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ViewController.swift
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ViewController.swift
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//
// Copyright (c) 2016 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
import UIKit
import Firebase
@objc(ViewController)
class ViewController: UIViewController {
@IBOutlet weak var fcmTokenMessage: UILabel!
@IBOutlet weak var instanceIDTokenMessage: UILabel!
override func viewDidLoad() {
NotificationCenter.default.addObserver(self, selector: #selector(self.displayFCMToken(notification:)),
name: Notification.Name("FCMToken"), object: nil)
}
@IBAction func handleLogTokenTouch(_ sender: UIButton) {
// [START log_fcm_reg_token]
let token = Messaging.messaging().fcmToken
print("FCM token: \(token ?? "")")
// [END log_fcm_reg_token]
self.fcmTokenMessage.text = "Logged FCM token: \(token ?? "")"
// [START log_iid_reg_token]
InstanceID.instanceID().instanceID { (result, error) in
if let error = error {
print("Error fetching remote instance ID: \(error)")
} else if let result = result {
print("Remote instance ID token: \(result.token)")
self.instanceIDTokenMessage.text = "Remote InstanceID token: \(result.token)"
}
}
// [END log_iid_reg_token]
}
@IBAction func handleSubscribeTouch(_ sender: UIButton) {
// [START subscribe_topic]
Messaging.messaging().subscribe(toTopic: "weather") { error in
print("Subscribed to weather topic")
}
// [END subscribe_topic]
}
@objc func displayFCMToken(notification: NSNotification){
guard let userInfo = notification.userInfo else {return}
if let fcmToken = userInfo["token"] as? String {
self.fcmTokenMessage.text = "Received FCM token: \(fcmToken)"
}
}
}