Android shared preferences not saving

Question

I\'ve created an Android live wallpaper and i\'m trying to let a user choose an image from their phone and apply it as a background image, but when I launch the activity tha

Answer 1

From the documentation:

Create a new Editor for these preferences, through which you can make modifications to the data in the preferences and atomically commit those changes back to the SharedPreferences object.

Since that's a new Editor instance, your code should be more like this:

preferences = getApplicationContext().getSharedPreferences(PREFERENCES_NAME, 0);
SharedPreferences.Editor editor = preferences.edit();
editor.putString(SETTINGS_BACKGROUND_IMAGE, "okok");
editor.apply();