title: Android display Toast even the app is closed
body: <p>Say, I have to calculate the sum of two digits and I pass the two values to the server and sever returns the calculated value and the app displays it in a <code>Toast</code>. It works perfectly. But I want to show this <code>Toast</code> even though the app is closed. I am wondering if I could use any other <code>Context</code> to make a global <code>Toast</code>. or what is the best way? Do creating a <code>Notification</code> makes any sense?</p>