رفع مشکل عدم نمایش نوتیفیکیشن استفاده از NotificationBuilder lib

	Dim nb As NotificationBuilder
			nb.Initialize
			nb.SmallIcon = "icon"
			nb.Ticker = "ticker test"
			nb.ContentTitle = " title test"
			nb.ContentInfo = "info test"
			nb.Tag = "some tag"
			nb.setActivity(Me)
			nb.AutoCancel=True
			nb.DefaultSound=False
			nb.DefaultVibrate=False
			nb.setProgress(100,0, True)
			nb.OnGoingEvent = False
			Dim P As Phone
			If P.SdkVersion >= 26 Then
				Dim Ctxt As JavaObject
				Ctxt.InitializeContext
				Dim Manager As JavaObject
				Manager.InitializeStatic("android.app.NotificationManager")
				Dim Channel As JavaObject
				Dim ChannelVisibleName As String = "My Channel"
				Channel.InitializeNewInstance("android.app.NotificationChannel", Array("MyChannelId1", ChannelVisibleName, Manager.GetField("IMPORTANCE_DEFAULT")))
				Manager = Ctxt.RunMethod("getSystemService", Array("notification"))
				Manager.RunMethod("createNotificationChannel", Array(Channel))
				Dim Jo As JavaObject = nb
				Jo.RunMethod("setChannelId", Array("MyChannelId1"))
			End If
			nb.Notify(1)