I am subscribing popup pages in Content pages with different key names(Eg X,Y...Z). I am using these popup pages to show error ,user messages and etc.

Problem is , i can see that the action of subscriber is called more than a time whenever i send the messages .I assume it is because that the message center is subscribed same messages multiple times even i unsubscribe first.

If i open "MyPage" and send a message ,it hit only once. Then if i close "MyPage" and open it again and send message, it hit twice.Like wise it is increases whenever i open and close MyPage.

I guess it is because of the multiple subscriptions of same messages. How can i prevent this behavior for message center?

Code

Public  MyPage:ContentPage
{
        public MyPage()
    {
        SubcribeAlerts();
    }
}


public SubcribeAlerts()
{
 //unsubscribe first 
        MessagingCenter.Unsubscribe<AltertModel>(this, "X");
        MessagingCenter.Unsubscribe<AlertDialogModel>(this, "Y");   


 //subscribe 
  MessagingCenter.Subscribe<AltertModel>(this, "X", async (args) =>
        {

            if (!string.IsNullOrEmpty(args.MessageText))
            {
                await
                    PopupNavigation.PushAsync(new DisplayAltertPage(args.MessageText,
                        (result) => { args.ViewModelCallBack(result); }));
            }

        });

        MessagingCenter.Subscribe<AlertDialogModel>(this, "Y", async (args) =>
        {

            if (!string.IsNullOrEmpty(args.MessageText))
            {
                await
                    PopupNavigation.PushAsync(new DisplayAlertDialogPage(args.MessageText,
                        (result) => { args.CallBack(result); }));
            }

        });
}