Android - Showing Toast in a background thread

        new Handler(Looper.getMainLooper()).post(new Runnable() {
            @Override
            public void run() {
                Toast.makeText(context, "Your text goes here ...", Toast.LENGTH_LONG).show();
            }
        });

java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
if you get such an error, then the solution is above in the gist.