Android: Keep username in session until logout

Question

I\'m having hard time trying to figure out how to use SharedPreferences to store the username in the phone and stay in session until logout. I also need to know how at the s

Answer 1

for storing in stored preferences use this

 SharedPreferences.Editor editor = getSharedPreferences("DeviceToken",MODE_PRIVATE).edit();
                        editor.putString("DeviceToken","ABABABABABABABB12345");
editor.apply();

for retrieving the same use

    SharedPreferences prefs = getSharedPreferences("DeviceToken", 
 MODE_PRIVATE);
    String deviceToken = prefs.getString("DeviceToken", null);