launchUserNotificationUserInfoKey
A key that indicates your app was launched because a user activated a notification in the Notification Center.
Declaration
class let launchUserNotificationUserInfoKey: StringDiscussion
The launchUserNotificationUserInfoKey key is an NSUserNotification object that is present in the userInfo dictionary of the didFinishLaunchingNotification notification if your app was launched because a user activated a notification in the Notification Center. To access the notification payload in the userInfo dictionary, you can use code like this:
NSUserNotification *userNotification = [[myNotification userInfo]
objectForKey:NSApplicationLaunchUserNotificationKey];
if (userNotification) {
// The app was launched by a user selection from Notification Center.
}