iOS 8 Notification Actions Example

iOS8NotificationActionsExample.m

// Borrowed some stuff from the WWDC 2014 video

// Create the action
UIMutableUserNotificationAction *acceptAction = [[UIMutableUserNotificationAction alloc] init];
acceptAction.identifier = @"ACCEPT_IDENTIFIER";
acceptAction.title = @"Accept";

acceptAction.activationMode = UIUserNotificationActivationModeBackground; // If we need to show UI, use UIUserNotificationActivationModeForeground
acceptAction.destructive = NO; // If YES, shows red button
acceptAction.authenticationRequired = NO; // If YES, requires passcode

// Create a category for the action
UIMutableUserNotificationCategory *inviteCategory = [[UIMutableUserNotificationCategory alloc] init];
inviteCategory.identifier = @"INVITE_CATEGORY"; // We will set this in our notification payload

[inviteCategory setActions:@[ acceptAction, maybeAction, declineAction ] forContext:UIUserNotificationActionContextDefault];
// Default context used when we can have up to 4 actions, if we only have space for 2, we only see the first two
// When we can only have 2, we need to use UIUserNotificationActionContextMinimal to define exactly what we see

// Register categories
NSSet *categories = [NSSet setWithObjects:inviteCategory, alarmCategory];
UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:types categories:categories];

[[UIApplicationSharedApplication] registerUserNotificationSettings:settings];


// Creating the notification
// Remote (payload size now 2kb!)
{
  "aps" : {
    "alert" : "You're invited!",
    "category" : "INVITE_CATEGORY", // Remember we created this identifier earlier
    }
}
// Local
UILocalNotification *notification = ...
notification.category = @"INVITE_CATEGORY";
[[UIApplication sharedApplication] scheduleLocalNotification:notification];


// Handling Actions
// For default action (just a tap)
UIApplicationDelegate application:didFinishLaunchingWithOptions:
                      application:didReceiveRemoteNotification:fetchCompletionHandler:

// For new actions
UIApplicationDelegate 
- (void)handleActionWithIdentifier:forLocalNotification:completionHandler {
  if(identifier ...) {
    [self handleAccpeActionWithNotification:notification];
  }
  
  completionHandler(); // We have to call this to finish
}
  
}