How to get userInfo from Apple Push Notifications - ios

Question

My enterprise app is using Apple Push Notifications, and it works fine under most circumstances. What I would like to do is get the user information from a notification in a method other than the userDidRespondToPush.
If there is a notification waiting, the system puts a badge on the icon on the iPhone's home screen. If a user responds to the notification itself, the app will trigger userRespondsToPush. But if the user doesn't swipe the notification and starts the app normally, by tapping on the app's icon with a badge showing, I'd like to have the app respond as if the user did swipe the notification. That means I would need to get the userInfo in a method other than userDidRespondToPush so the app will know what information to show the user.
Push Notifications is pretty new to me, but I've had some pretty good luck getting it working. I just need this one little feature to work.

Answer 1

If your application supports iOS 10 and above, then you should be able to retrieve pending notifications using the UNUserNotificationCenter class.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
[[UNUserNotificationCenter currentNotificationCenter] getPendingNotificationRequestsWithCompletionHandler:^(NSArray<UNNotificationRequest *> * _Nonnull requests) {
for (UNNotificationRequest *request in requests) {
NSDictionary *userInfo = request.content.userInfo;
NSLog(#"push user info: %#", userInfo);
// Handle the payload here.
}
}];
return YES;
}

Answer 2

I guess you want to know the app launched from RemoteNotifiication Or started normally from app icon.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
NSDictionary *remoteNotif = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];
return YES;
}
if remote Notification exists, means app started from RemoteNotification, otherwise NO.

Answer 3

Here's a short answer to a similar question: how to get the userInfo in other delegate methods, other than didReceiveRemoteNotification. It depends on your delegate method, but basically you have to dig it out:
If you have notification: notification.request.content.userInfo. This is the case for userNotificationCenter(_:willPresent:withCompletionHandler:)
If you have response: response.notification.request.content.userInfo. This is the case for userNotificationCenter:didReceiveNotificationResponse:withCompletionHandler
If you have userInfo: you've already got it.
You should either have notification, response or userInfo passed to you, depending on which delegate method is called.
Once you can get userInfo, you can do any logic you want in these delegate methods based on the dictionary your server sent you.