PutExtra值未从使用xamarin表单和android的推送通知传递给mainactivity

Question

 var uiIntent = new Intent(this, typeof(MainActivity));
 uiIntent.PutExtra("param", "54");
 var pendingIntent = PendingIntent.GetActivity(this, 0, uiIntent, 0);

        string parameterValue = this.Intent.GetStringExtra("param");
        if (parameterValue != null)
        {
            LoadApplication(new App(parameterValue));
        }
        else
        {
            LoadApplication(new App(null));
        }

 private void CreateNotification(string title, string desc)
    {
        //Create notification
        var notificationManager = GetSystemService(Context.NotificationService) as NotificationManager;

        Intent startupIntent = new Intent(this, typeof(MainActivity));
        startupIntent.PutExtra("param", "54");
        Android.App.TaskStackBuilder stackBuilder = Android.App.TaskStackBuilder.Create(this);
        stackBuilder.AddParentStack(Java.Lang.Class.FromType(typeof(MainActivity)));
        stackBuilder.AddNextIntent(startupIntent);
        const int pendingIntentId = 0;
        PendingIntent pendingIntent =
                       stackBuilder.GetPendingIntent(pendingIntentId, PendingIntentFlags.OneShot);

      //  var pendingIntent = PendingIntent.GetActivity(this, 0, startupIntent, 0);


        ////Create an intent to show ui
        //var uiIntent = new Intent(this, typeof(MainActivity));
        //uiIntent.PutExtra("param", "54");
        //var pendingIntent = PendingIntent.GetActivity(this, 0, uiIntent, 0);


        //Create the notification using Notification.Builder
        //Use Android Compatibility Apis

        var notification = new NotificationCompat.Builder(this).SetContentTitle(title)
            .SetSmallIcon(Android.Resource.Drawable.SymActionEmail)
            //we use the pending intent, passing our ui intent over which will get called
            //when the notification is tapped.
            .SetContentIntent(pendingIntent)
            .SetContentText(desc)
            .SetSound(RingtoneManager.GetDefaultUri(RingtoneType.Notification))

             //Auto cancel will remove the notification once the user touches it
             .SetAutoCancel(true).
            Build();


        //Show the notification
        if (notificationManager != null)
        {
            notificationManager.Notify(1, notification);
        }
    }

full方法使用不同的方法，但值仍然不会传递给mainActivity。总是有一个空的？

Answer 1

这就是它对我起作用的原因。

最初是RegisterInGcm（）；在parameterValue之上，但将其移动到下面可以使其工作。

//RegisterInGcm(); Wrong

        string parameterValue = this.Intent.GetStringExtra("param");
        if (parameterValue != null)
        {
             LoadApplication(new App(parameterValue));
        }
        else
        {
            LoadApplication(new App(null));
        }

        RegisterInGcm();

疯狂的简单改变，许多测试要做！！