public void saveInfo(Context context, String key, List<map<string, string="">> datas) {

    JSONArray mJsonArray = new JSONArray();

    for (int i = ; i < datas.size(); i++) {

        Map<string, string=""> itemMap = datas.get(i);

        Iterator<entry<string, string="">> iterator = itemMap.entrySet().iterator();

        JSONObject object = new JSONObject();

        while (iterator.hasNext()) {

            Entry<string, string=""> entry = iterator.next();

            try {

                object.put(entry.getKey(), entry.getValue());

            } catch (JSONException e) {

            }

        }

        mJsonArray.put(object);

    }

    SharedPreferences sp = context.getSharedPreferences("finals", Context.MODE_PRIVATE);

    Editor editor = sp.edit();

    editor.putString(key, mJsonArray.toString());

    editor.commit();

}

public List<map<string, string="">> getInfo(Context context, String key) {

    List<map<string, string="">> datas = new ArrayList<map<string, string="">>();

    SharedPreferences sp = context.getSharedPreferences("finals", Context.MODE_PRIVATE);

    String result = sp.getString(key, "");

    try {

        JSONArray array = new JSONArray(result);

        for (int i = ; i < array.length(); i++) {

            JSONObject itemObject = array.getJSONObject(i);

            Map<string, string=""> itemMap = new HashMap<string, string="">();

            JSONArray names = itemObject.names();

            if (names != null) {

                for (int j = ; j < names.length(); j++) {

                    String name = names.getString(j);

                    String value = itemObject.getString(name);

                    itemMap.put(name, value);

                }

            }

            datas.add(itemMap);

        }

    } catch (JSONException e) {

    }

    return datas;

}