button action from OneSignal notification?

In AppDelegate.m

[OneSignal initWithLaunchOptions:launchOptions appId:@"put app ID here." handleNotificationReceived:^(OSNotification *notification) { NSLog(@"Received Notification - %@", notification.payload.notificationID); } handleNotificationAction:^(OSNotificationOpenedResult *result) {

    // This block gets called when the user reacts to a notification received
    OSNotificationPayload* payload = result.notification.payload;

    NSString* messageTitle = @"OneSignal Example";
    NSString* fullMessage = [payload.body copy];

    if (payload.additionalData) {

        if(payload.title)
            messageTitle = payload.title;

        if (result.action.actionID)
            fullMessage = [fullMessage stringByAppendingString:[NSString stringWithFormat:@"nPressed ButtonId:%@", result.action.actionID]];
    }
} settings:@{kOSSettingsKeyInFocusDisplayOption : @(OSNotificationDisplayTypeNotification), kOSSettingsKeyAutoPrompt : @YES}];

[OneSignal IdsAvailable:^(NSString *userId, NSString *pushToken) {
    if(pushToken) {
        NSLog(@"Received push token - %@", pushToken);
        NSLog(@"User ID - %@", userId);
    }
   }];