IOS: handleActionWithIdentifier event not fired on real device - ios

Question

I am using UILocalNitification to send notifications when the app is running in the background, my code is:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
[[UIApplication sharedApplication] cancelAllLocalNotifications];
// ask fo permission to send alert
if ([UIApplication instancesRespondToSelector:#selector(registerUserNotificationSettings:)]) {
[[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeSound|UIUserNotificationTypeBadge categories:nil]];
}
UIMutableUserNotificationAction *acceptAction =
[[UIMutableUserNotificationAction alloc] init];
// Define an ID string to be passed back to your app when you handle the action
acceptAction.identifier = #"ACCEPT_IDENTIFIER";
// Localized string displayed in the action button
acceptAction.title = #"Take Photos";
// If you need to show UI, choose foreground
acceptAction.activationMode = UIUserNotificationActivationModeBackground;
// Destructive actions display in red
acceptAction.destructive = NO;
// Set whether the action requires the user to authenticate
acceptAction.authenticationRequired = NO;
// First create the category
UIMutableUserNotificationCategory *inviteCategory =
[[UIMutableUserNotificationCategory alloc] init];
// Identifier to include in your push payload and local notification
inviteCategory.identifier = #"PHOTO";
// Add the actions to the category and set the action context
[inviteCategory setActions:#[acceptAction]
forContext:UIUserNotificationActionContextDefault];
// Set the actions to present in a minimal context
[inviteCategory setActions:#[acceptAction]
forContext:UIUserNotificationActionContextMinimal];
NSSet *categories = [NSSet setWithObjects:inviteCategory, nil];
UIUserNotificationSettings* notificationSettings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound categories:categories];
[[UIApplication sharedApplication] registerUserNotificationSettings:notificationSettings];
[self.window makeKeyAndVisible];
return YES;
}
and the code use to handle the button event is:
- (void) application:(UIApplication *)application handleActionWithIdentifier:(NSString *)identifier forLocalNotification:(UILocalNotification *)notification withResponseInfo:(NSDictionary *)responseInfo completionHandler:(void (^)())completionHandler{
if ([identifier isEqualToString:#"ACCEPT_IDENTIFIER"]) {
NSLog(#"Here");
}
completionHandler();
}
My problem is when testing on a simulator, the button event can be captured, but when testing on a real device (iPod with iOS version 8.1.2 and iPhone 5S iOS8.1.X), both devices cannot get the button event.
Can anybody help?