Remember Users in android

Question

I am developing an Android App. It has a login page.. what is the best way to save users' details so they do not have to fill in their credentials every time they use the app.. according to Link ? we can use account manager or oath2. I am still not sure of which methods i can use.. I simply want the user to enter a username and a password once.. I came across other methods but I am looking for the best method to be used.

Answer 1

You can use this function to save username and password

 public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        SharedPreferences shared = getSharedPreferences("shared", MODE_PRIVATE);
        if(shared.contains("username") && shared.contains("password")){
            startingActivity();
        } else {
            saveInformation(userId,pass);
        }
    }


public void saveInformation(String username,String password) {
        SharedPreferences shared = getSharedPreferences("shared", MODE_PRIVATE);
        SharedPreferences.Editor editor = shared.edit();
        editor.putString("username", username);
        editor.putString("password", password);
        editor.commit();
    }