Android Best Way To Save Very Tiny Data On Device

in my application launching activity i need to check three things every time app is started App Version is User Login is User Account Created I am using Firebase for database

Solution 1:

This is the way I would do it using SharedPreferences.

First create a separate class( I use it to save other informations like url, constants etc.) In that create a SharedPreferences.

publicclassproject_constants {
privatestaticStringPREF_NAME = "project_pref";

privatestaticSharedPreferencesgetPrefs(Context context) {
    return context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
}

publicstaticbooleangetUserLogin(Context context) {
    returngetPrefs(context).getBoolean("login", false);
}

publicstaticvoidsetUserLogin(Context context, boolean input) {
    SharedPreferences.Editor editor = getPrefs(context).edit();
    editor.putBoolean("login", input);
    editor.apply();
}

Now when the user log's in, you should use project_constants.setuserLogin(getApplicationContext,True);.

Now when you want to check whether the user has logged in or not, you can use project_constants.getuserLogin(getApplicationContext); , if that's true, the user is logged in, else no.

Solution 2:

For the first time you should save your data in SharedPreference when data is ready from firebase with:

SharedPreferencespref= getApplicationContext().getSharedPreferences("MyPref", MODE_PRIVATE);
editor = pref.edit();
editor.putBoolean("userLoginCheck", false);
editor.commit();

Then you can get preference value for next times with:

booleanisLoogenIn= pref.getBoolean("userLoginCheck", true);