How to save and get ArrayList in SharedPreference on Android? Article: https://freakycoder.com/android-notes-40-how-to-save-and-get-arraylist-into-sharedpreference-7d1f044bc79a

SharedPreferenceUsage.md

    /**
     *     Save and get ArrayList in SharedPreference
     */

    public void saveArrayList(ArrayList<String> list, String key){
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
        SharedPreferences.Editor editor = prefs.edit();
        Gson gson = new Gson();
        String json = gson.toJson(list);
        editor.putString(key, json);
        editor.apply();     // This line is IMPORTANT !!!
    }

    public ArrayList<String> getArrayList(String key){
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
        Gson gson = new Gson();
        String json = prefs.getString(key, null);
        Type type = new TypeToken<ArrayList<String>>() {}.getType();
        return gson.fromJson(json, type);
    }

super

nice, thanks

Thanks for the share. but how to delete saved list?. editor.remove(key) not worked

Thanks for the share. but how to delete saved list?. editor.remove(key) not worked

try editor.remove(key).apply()

great work there

How to display that saved array in list view??

How to display that saved array in list view??

You need to google it for that :) Not the right place to ask :)

How to work with ArrayList ?

Note that CustomClass has Date, Int and String fields

Hey @oremlawi,
I really could not understand your question. Can you explain it a bit?

Am using it on a fragment page... But the data is not loading back.

Phenomenal !! U saved me

Love to hear that @thanhdat410 :)

I suggest you to write a simple util class to use them a much better way.