[英]responding to push notification when app is TERMINATED
As I am very new to push notifications I have looked at several tutorials that outline the best way to handle remote push notifications when app is terminated and it seems that I still have an issue in my app. 由于我是推送通知的新手,因此我看了几本教程,概述了终止应用程序时似乎处理远程推送通知的最佳方法,并且看来我的应用程序中仍然存在问题。 I am calling didFinishLaunchingWithOptions when push notification is tapped but for some reason the function is skipped over and does not execute the code to open the proper view controller. 当点击推送通知时,我正在调用didFinishLaunchingWithOptions,但是由于某种原因,该功能被跳过,并且不执行代码以打开适当的视图控制器。
Here is the code in AppDelegate 这是AppDelegate中的代码
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool {
// Override point for customization after application launch.
//UserNotification
let center = UNUserNotificationCenter.current()
center.requestAuthorization(options: [.alert, .sound, .badge]) { (granted, error) in
// Enable or disable features based on authorization.
if granted {
UIApplication.shared.registerForRemoteNotifications()
if GlobalService.sharedInstance().g_userDeviceToken == nil {
// GlobalService.sharedInstance().g_userDeviceToken = ""
}
} else {
print("Don't Allow")
}
if let notification = launchOptions?[UIApplicationLaunchOptionsKey.remoteNotification] as? [String: AnyObject] {
self.getUserChatRooms()
let aps = notification["aps"] as! [String: AnyObject]
let mainNC = self.window?.rootViewController as! UINavigationController
let storyboard = UIStoryboard.init(name: "Main", bundle: nil)
let mainVC = storyboard.instantiateViewController(withIdentifier: String(describing: MainViewController.self)) as! MainViewController
GlobalService.sharedInstance().g_homeVC = mainVC
mainVC.didReceiveChat(aps)
mainNC.pushViewController(mainVC, animated: false)
}
...
//SVProgressHUD
SVProgressHUD.setDefaultStyle(.dark)
//Check UserObj
GlobalService.sharedInstance().g_appDelegate = self
if let userObj = GlobalService.sharedInstance().loadUserObj() {
GlobalService.sharedInstance().g_userMe = userObj
startApplication(animated: false)
...
return true
}
then this is the function that is called in MainVC: 那么这就是在MainVC中调用的函数:
func didReceiveChat (_ notificationDictionary: [String: AnyObject]){
let allChats = GlobalService.sharedInstance().g_aryChatRooms
if let noti_id = notificationDictionary["noti_id"] as? String{
let pushID = Int(noti_id)
if pushID != nil {
for chat in allChats {
if chat.chat_room_id! == pushID! {
chtRoom = chat
NotificationCenter.default.post(name: Notification.Name(rawValue: Constants.Notifications.GET_MSG), object: self)
break
}
}
}
}
}
and then in my viewDidLoad method I add the observer: 然后在我的viewDidLoad方法中添加观察者:
NotificationCenter.default.addObserver(self,selector: #selector(MainViewController.addChatScn(_:_:)), name: NSNotification.Name(rawValue: Constants.Notifications.GET_MSG), object: nil)
finally I call the method to addChatScn: 最后我调用了addChatScn的方法:
@objc func addChatScn(_ chatObj: ChatRoomObj, _ msgName: String) {
let popvc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "ChatContainerViewController") as! ChatContainerViewController
iconContainer.isHidden = true
add_Msg_Btn.isHidden = true
popvc.vcA = self
popvc.m_selectedChatRoom = chatObj
popvc.msgName = msgName
self.addChildViewController(popvc)
popvc.view.center = self.view.center
popvc.view.bounds.size = CGSize(width: 337, height: 503)
self.view.addSubview(popvc.view)
popvc.didMove(toParentViewController: self)
}
In your GlobalService.sharedInstance, Add a boolean value called 'readyToReceivePush'. 在您的GlobalService.sharedInstance中,添加一个名为“ readyToReceivePush”的布尔值。 In your MainVC in your viewDidLoad, set the 'GlobalService.sharedInstance.readyToReceivePush' to true. 在MainVC的viewDidLoad中,将“ GlobalService.sharedInstance.readyToReceivePush”设置为true。 Set it to false if the app goes into the background, and true if it comes back to foreground. 如果应用程序进入后台,则将其设置为false;如果应用程序回到前台,则将其设置为true。
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.
GlobalService.sharedInstance.readyToReceivePush = false
}
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.
GlobalService.sharedInstance.readyToReceivePush = true
}
Once you have that set up, if the user swipes on a notification the 'didReceiveRemoteNotification' will be called. 完成设置后,如果用户在通知上滑动,则将调用“ didReceiveRemoteNotification”。 In that method, if GlobalService.sharedInstance.readyToReceivePush == false, save the userInfo to GlobalService.sharedInstance.savedPushInfo. 在该方法中,如果GlobalService.sharedInstance.readyToReceivePush == false,则将userInfo保存到GlobalService.sharedInstance.savedPushInfo。
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
if GlobalService.sharedInstance.readyToReceivePush == false {
GlobalService.sharedInstance.savedPushInfo = userInfo
} else {
// Handle notification while the user is in the foreground
}
}
Once you've done that, in MainVC check if GlobalService.sharedInstance.savedPushInfo != nil. 完成此操作后,在MainVC中检查GlobalService.sharedInstance.savedPushInfo!= nil。 If it is != nil, call your 'didReceiveChat' function or whatever you do to handle the notification's userInfo data. 如果它是!= nil,则调用您的“ didReceiveChat”函数或执行任何处理通知的userInfo数据的操作。
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