Save an arraylist of Strings to shared preferences

Question

What is the best way to save an ArrayList of strings to SharedPreferences in API level 8? The only way i can think of now is to save all of the str

Answer 1

If you can guarantee your Strings in ArrayList don't contain comma, you can simply use

List list = new ArrayList();
...
editor.putString(PREF_KEY_STRINGS, TextUtils.join(",", list));

and to read the list

String serialized = prefs.getString(PREF_KEY_STRINGS, null);
List list = Arrays.asList(TextUtils.split(serialized, ","));

You are limited by the memory of the device. It's good practice to use background thread to read/write shared preferences.