How to Implement iOS8 Interactive Notification

1. First you need to create the notification Action.
2. Second you need to create the notification category and set its actions.You can set for two contexts. UIUserNotificationActionContextDefault or UIUserNotificationActionContextMinimal
3. Third you need to create the notification setting and assign the above categories
4. Fourth step would be to create local notification and assign it the identifier of the category.

UIMutableUserNotificationAction *notificationAction1 = [[UIMutableUserNotificationAction alloc] init];
notificationAction1.identifier = @"Accept";
notificationAction1.title = @"Accept";
notificationAction1.activationMode = UIUserNotificationActivationModeBackground;
notificationAction1.destructive = NO;
notificationAction1.authenticationRequired = NO;

UIMutableUserNotificationAction *notificationAction2 = [[UIMutableUserNotificationAction alloc] init];
notificationAction2.identifier = @"Reject";
notificationAction2.title = @"Reject";
notificationAction2.activationMode = UIUserNotificationActivationModeBackground;
notificationAction2.destructive = YES;
notificationAction2.authenticationRequired = YES;

UIMutableUserNotificationAction *notificationAction3 = [[UIMutableUserNotificationAction alloc] init];
notificationAction3.identifier = @"Reply";
notificationAction3.title = @"Reply";
notificationAction3.activationMode = UIUserNotificationActivationModeForeground;
notificationAction3.destructive = NO;
notificationAction3.authenticationRequired = YES;

UIMutableUserNotificationCategory *notificationCategory = [[UIMutableUserNotificationCategory alloc] init];
notificationCategory.identifier = @"Email";
[notificationCategory setActions:@[notificationAction1,notificationAction2,notificationAction3] forContext:UIUserNotificationActionContextDefault];
[notificationCategory setActions:@[notificationAction1,notificationAction2] forContext:UIUserNotificationActionContextMinimal];

NSSet *categories = [NSSet setWithObjects:notificationCategory, nil];

UIUserNotificationType notificationType = UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert;
UIUserNotificationSettings *notificationSettings = [UIUserNotificationSettings settingsForTypes:notificationType categories:categories];

[[UIApplication sharedApplication] registerUserNotificationSettings:notificationSettings];

UILocalNotification* localNotification = [[UILocalNotification alloc] init];
localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:10];
localNotification.alertBody = @"Testing";
localNotification.category = @"Email"; //  Same as category identifier
[[UIApplication sharedApplication] scheduleLocalNotification:localNotification];