Get push notification while App in foreground iOS

Question

I am using push notification service in my app  When app is in background I am able to see notification on notification screen screen shown when we swipe down from top of iOS device   But if application is in foreground the delegate method   -  void application  UIApplication  application didReceiveRemoteNotification  NSDictionary  userInfo   is getting called but notification is not displayed in notification screen    I want to show notification on notification screen independent of whether app is in background or foreground  I am tired by searching for a solution  Any help is greatly appreciated

User · Answer

According to apple documentation  Yes you can display notification while app is running

User · Answer

For Swift 5      1  Confirm the delegate to the AppDelegate with UNUserNotificationCenterDelegate      2  UNUserNotificationCenter current   delegate   self in didFinishLaunch      3  Implement the below the method in AppDelegate    func userNotificationCenter   center  UNUserNotificationCenter                                  willPresent notification  UNNotification                                  withCompletionHandler completionHandler   escaping  UNNotificationPresentationOptions  - gt  Void         print  Push notification received in foreground         completionHandler   alert   sound   badge       That s it

User · Answer

If your application is in foreground state  it means you are currently using the same app  So there is no need to show notification on the top generally   But still if you want to show notification in that case you have to create your custom Alert View or Custom View like Toast or something else to show to the user that you have got a notification   You can also show a badge on the top if you have such kind of feature in your app

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Xcode 10 Swift 4 2  To show Push Notification when your app is in the foreground -   Step 1   add delegate UNUserNotificationCenterDelegate in AppDelegate class   class AppDelegate  UIResponder  UIApplicationDelegate  UNUserNotificationCenterDelegate     Step 2   Set the UNUserNotificationCenter delegate  let notificationCenter   UNUserNotificationCenter current   notificationCenter delegate   self   Step 3   This step will allow your app to show Push Notification even when your app is in foreground  func userNotificationCenter   center  UNUserNotificationCenter                                  willPresent notification  UNNotification                                  withCompletionHandler completionHandler   escaping  UNNotificationPresentationOptions  - gt  Void            completionHandler   alert   sound            Step 4   This step is optional  Check if your app is in the foreground and if it is in foreground then show Local PushNotification   func application   application  UIApplication didReceiveRemoteNotification userInfo   AnyHashable  Any  fetchCompletionHandler completionHandler  escaping  UIBackgroundFetchResult  - gt  Void             let state   UIApplicationState   application applicationState         if  state     inactive    state     background                   go to screen relevant to Notification content             print  background             else                  App is in UIApplicationStateActive  running in foreground              print  foreground               showLocalNotification                     Local Notification function -   fileprivate func showLocalNotification                creating the notification content         let content   UNMutableNotificationContent              adding title  subtitle  body and badge         content title    App Update            content subtitle    local notification          content body    New version of app update is available             content badge   1         content sound   UNNotificationSound default              getting the notification trigger           it will be called after 5 seconds         let trigger   UNTimeIntervalNotificationTrigger timeInterval  1  repeats  false             getting the notification request         let request   UNNotificationRequest identifier   SimplifiedIOSNotification   content  content  trigger  trigger             adding the notification to notification center         notificationCenter add request  withCompletionHandler  nil

User · Answer

If the application is running in the foreground  iOS won t show a notification banner alert  That s by design  You have to write some code to deal with the situation of your app receiving a notification while it is in the foreground  You should show the notification in the most appropriate way  for example  adding a badge number to a UITabBar icon  simulating a Notification Center banner  etc

User · Answer

Objective C  For iOS 10 we need integrate willPresentNotification method for show notification banner in foreground  If app in foreground mode active  -  void userNotificationCenter  UNUserNotificationCenter   center willPresentNotification  UNNotification   notification withCompletionHandler  void     UNNotificationPresentationOptions options  completionHandler       NSLog    quot Here handle push notification in foreground quot            For notification Banner - when app in foreground          completionHandler UNNotificationPresentationOptionAlert               Print Notification info     NSLog   quot Userinfo    quot  notification request content userInfo

User · Answer

For displaying banner message while app is in foreground  use the following method   iOS 10  Swift 3 4       This method will be called when app received push notifications in foreground func userNotificationCenter   center  UNUserNotificationCenter  willPresent notification  UNNotification  withCompletionHandler completionHandler   escaping  UNNotificationPresentationOptions  - gt  Void         completionHandler   alert   badge   sound       iOS 10  Swift 2 3     available iOS 10 0     func userNotificationCenter center  UNUserNotificationCenter  willPresentNotification notification  UNNotification  withCompletionHandler completionHandler   UNNotificationPresentationOptions  - gt  Void          Handle the notification     completionHandler          UNNotificationPresentationOptions Alert          UNNotificationPresentationOptions Sound          UNNotificationPresentationOptions Badge       You must also register your app delegate as the delegate for the notifications center   import UserNotifications     snip   class AppDelegate   UIResponder  UIApplicationDelegate  UNUserNotificationCenterDelegate     snip      func application   application  UIApplication  didFinishLaunchingWithOptions launchOptions   UIApplication LaunchOptionsKey  Any    - gt  Bool             set the delegate in didFinishLaunchingWithOptions       UNUserNotificationCenter current   delegate   self

User · Answer

You can create your own notification that mimics the banner alert    One way is to create a custom uiview that looks like the banner and can animate and respond to touches  With this in mind you can create even better banners with even more functionality   Or you can look for an api that does it for you and add them as podfiles to your project   Here are a couple that I have used   https   github com terryworona TWMessageBarManager  https   github com toursprung TSMessages

User · Answer

As mentioned above  you should use UserNotification framework to achieve this  But for my purposes I have to show it in app anyway and wanted to have iOS 11 style  so I ve created a small helper view  maybe would be useful for someone   GitHub iOS 11 Push Notification View

User · Answer

For swift 5 to parse PushNotification dictionary      func application   application  UIApplication  didReceiveRemoteNotification data   AnyHashable   Any                 if application applicationState     active                   if let aps1   data  aps   as  NSDictionary                       if let dict   aps1  alert   as  NSDictionary                           if let strTitle   dict  title   as  String   let strBody   dict  body   as  String                               if let topVC   UIApplication getTopViewController                                       Apply your own logic as per requirement                                 print  strTitle     strTitle    strBody      strBody                                                                                                                              To fetch top viewController on which we show topBanner  extension UIApplication        class func getTopViewController base  UIViewController    UIApplication shared keyWindow  rootViewController  - gt  UIViewController             if let nav   base as  UINavigationController               return getTopViewController base  nav visibleViewController             else if let tab   base as  UITabBarController  let selected   tab selectedViewController               return getTopViewController base  selected             else if let presented   base  presentedViewController               return getTopViewController base  presented                    return base

User · Answer

As  Danial Martine said iOS won t show a notification banner alert  That s by design  But if really have to do it then there is one way   I have also achieve this by same   1 Download the parse frame work from Parse FrameWork  2 Import  import  lt Parse Parse h gt   3 Add following code to your didReceiveRemoteNotification Method   -  void application  UIApplication   application didReceiveRemoteNotification  NSDictionary   userInfo        PFPush handlePush userInfo       PFPush will take care how to handle the remote notification   If App is in foreground this shows the alert otherwise it shows the notification at the top

User · Answer

For anyone might be interested  I ended up creating a custom view that looks like the system push banner on the top but adds a close button  small blue X  and an option to tap the message for custom action  It also supports the case of more than one notification arrived before the user had time to read dismiss the old ones  With no limit to how many can pile up     Link to GitHub  AGPushNote The usage is basically on-liner   AGPushNoteView showWithNotificationMessage   quot John Doe sent you a message  quot     And it looks like this on iOS7  iOS6 have an iOS6 look and feel

User · Answer

If the application is running in the foreground  iOS won t show a notification banner alert  That s by design  But we can achieve it by using UILocalNotification as follows   Check whether application is in active state on receiving a remote notification  If in active state fire a UILocalNotification   if  application applicationState    UIApplicationStateActive          UILocalNotification  localNotification     UILocalNotification alloc  init       localNotification userInfo   userInfo      localNotification soundName   UILocalNotificationDefaultSoundName      localNotification alertBody   message      localNotification fireDate    NSDate date         UIApplication sharedApplication  scheduleLocalNotification localNotification        SWIFT    if application applicationState     active       var localNotification   UILocalNotification       localNotification userInfo   userInfo     localNotification soundName   UILocalNotificationDefaultSoundName     localNotification alertBody   message     localNotification fireDate   Date       UIApplication shared scheduleLocalNotification localNotification

User · Answer

In your app delegate use bellow code    import UIKit import UserNotifications  UIApplicationMain class AppDelegate  UIResponder  UIApplicationDelegate  UNUserNotificationCenterDelegate    var currentToken  String   var window  UIWindow   func application   application  UIApplication  didFinishLaunchingWithOptions launchOptions   UIApplicationLaunchOptionsKey  Any    - gt  Bool              Override point for customization after application launch          application registerForRemoteNotifications           let center   UNUserNotificationCenter current           center requestAuthorization options    alert   sound   badge      granted  error  in                 Enable or disable features based on authorization              if granted    true                               print  Allow                   UIApplication shared registerForRemoteNotifications                             else                               print  Don t Allow                                   UNUserNotificationCenter current   delegate   self          return true       func application   application  UIApplication  didRegisterForRemoteNotificationsWithDeviceToken deviceToken  Data           let tokenParts   deviceToken map   data - gt  String in             return String format    02 2hhx   data                    let token   tokenParts joined           currentToken   token    get device token to delegate variable         public class var shared  AppDelegate           return UIApplication shared delegate as  AppDelegate        func userNotificationCenter   center  UNUserNotificationCenter  willPresent notification  UNNotification  withCompletionHandler completionHandler   escaping  UNNotificationPresentationOptions  - gt  Void             completionHandler   alert   badge   sound

User · Answer

Below code will be work for you    -  void application  UIApplication   application didReceiveRemoteNotification  NSDictionary   userInfo        application applicationIconBadgeNumber   0                     self textView text    userInfo description          We can determine whether an application is launched as a result of the user tapping the action        button or whether the notification was delivered to the already-running application by examining        the application state       if  application applicationState    UIApplicationStateActive                               Nothing to do if applicationState is Inactive  the iOS already displayed an alert view                          UIAlertView  alertView     UIAlertView alloc  initWithTitle   Did receive a Remote Notification  message  NSString stringWithFormat   Your App name received this notification while it was running  n      userInfo objectForKey   aps   objectForKey   alert   delegate self cancelButtonTitle   OK  otherButtonTitles nil            alertView show

User · Answer

Best Approach for this is to add UNUserNotificationCenterDelegate in AppDelegate by using extension AppDelegate  UNUserNotificationCenterDelegate That extension tells the app to be able to get notification when in use  And implement this method   func userNotificationCenter   center  UNUserNotificationCenter  willPresent notification  UNNotification  withCompletionHandler completionHandler   escaping  UNNotificationPresentationOptions  - gt  Void            completionHandler  alert          This method will be called on the delegate only if the application is in the Foreground   So The final Implementation   extension AppDelegate  UNUserNotificationCenterDelegate       func userNotificationCenter   center  UNUserNotificationCenter  willPresent notification  UNNotification  withCompletionHandler completionHandler   escaping  UNNotificationPresentationOptions  - gt  Void            completionHandler  alert            And To call this you must set the delegate in AppDelegate in didFinishLaunchingWithOptions add this line  UNUserNotificationCenter current   delegate   self   You can modify   completionHandler  alert     with   completionHandler   alert   badge   sound

User · Answer

Here is the code to receive Push Notification when app in active state  foreground or open    UNUserNotificationCenter documentation   available iOS 10 0     func userNotificationCenter center  UNUserNotificationCenter  willPresentNotification notification  UNNotification  withCompletionHandler completionHandler   UNNotificationPresentationOptions  - gt  Void         completionHandler  UNNotificationPresentationOptions Alert UNNotificationPresentationOptions Sound UNNotificationPresentationOptions Badge       If you need to access userInfo of notification use code  notification request content userInfo

User · Answer

Adding that completionHandler line to delegate method solved same problem for me     Called when a notification is delivered to a foreground app   available iOS 10 0     func userNotificationCenter   center  UNUserNotificationCenter  willPresent notification  UNNotification  withCompletionHandler completionHandler   escaping  UNNotificationPresentationOptions  - gt  Void     completionHandler   alert   badge   sound

[iphone] Get push notification while App in foreground iOS

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