How to access parameters in Push Notification - ios

Question

I am using mvvmCross 5.3 and Xamarin 6.3 and need help to access data passed by notification.
When I get a notification, I'm getting a standard JSON that is sent by Apple. I also receive one more parameter that I'll use to point to some screen in my application.
In my AppDelegate, I have the following code:
public override bool FinishedLaunching(UIApplication application, NSDictionary options)
{
Window = new UIWindow(UIScreen.MainScreen.Bounds);
var setup = new Setup(this, Window);
setup.Initialize();
var startup = Mvx.Resolve<IMvxAppStart>();
startup.Start();
Window.MakeKeyAndVisible();
//Push Notifications
if (UIDevice.CurrentDevice.CheckSystemVersion(9, 0))
{
var pushSettings = UIUserNotificationSettings.GetSettingsForTypes(
UIUserNotificationType.Alert | UIUserNotificationType.Badge | UIUserNotificationType.Sound,
new NSSet());
UIApplication.SharedApplication.RegisterUserNotificationSettings(pushSettings);
UIApplication.SharedApplication.RegisterForRemoteNotifications();
}
else
{
UIRemoteNotificationType notificationTypes = UIRemoteNotificationType.Alert | UIRemoteNotificationType.Badge | UIRemoteNotificationType.Sound;
UIApplication.SharedApplication.RegisterForRemoteNotificationTypes(notificationTypes);
}
return ApplicationDelegate.SharedInstance.FinishedLaunching(application, options);
}
In the parameter options, I know that I get the information I need. I do not know how to access this information in my code.
2017-10-26 11:39:28.680 App.IOs[6733:2676232]
{
UIApplicationLaunchOptionsRemoteNotificationKey =
{
aps =
{
alert =
{
body = "Message";
title = "Title";
};
};
idOrder = 254;
};
}

Answer 1

You can create a method like this and call it in the iOS methods that receive the notifications in AppDelegate:
private void HandleReceivedNotification(NSDictionary userInfo = null)
{
if (userInfo != null)
{
var apsDictionary = userInfo["aps"] as NSDictionary;
var alertDictionary = apsDictionary["alert"] as NSDictionary;
var body = alertDictionary["body"].ToString();
var idOrder = userInfo["idOrder "].ToString();
}
}
But don't forget to include a try/catch and check if any variable is null.