Toast not working on Samsung gt-p5110

Question

What should I do to force Samsung gt-p5110 to display a standard Toast message?

Toast.makeText(context,"text",Toast.LENGTH_LONG).show(); 

This line of code works on many tablets and phones. I have a problem only with Samsung which does not display anything.

Answer 1

It is a bug

read this

Toasts are disabled if notifications are disabled for an app (Jelly Bean)

https://code.google.com/p/android/issues/detail?id=35013

it mostly happens with 7' and 10' tablets