save List as SharedPreferences Android

DataList.java

import java.util.List;

public class DataList {
    List<Data> dataList;

    public List<Data> getDataList() {
        return dataList;
    }

    public void setDataList(List<Data> dataList) {
        this.dataList = dataList;
    }


}

gistfile1.txt

compile 'com.google.code.gson:gson:2.7'

MainActivity.java

    List<Data> fetchLog = new ArrayList<Data>();
    DataList dataList = null;


    dataList = new DataList();
    Gson gson = new Gson();

//     SAVE List As SharedPreferences
    Data data = new Data("ali",20);
    fetchLog.add(data);
    dataList.setDataList(fetchLog);
    Gson gson = new Gson();
    String json = gson.toJson(dataList);
    
    utils.setPref("logs", json);// function to set SharedPreferences


    // read List from SharedPreferences
        String json = utils.getPref("logs");// function to read SharedPreferences
        if (! json.equals("")) {
            dataList = gson.fromJson(json, DataList.class);
            fetchLog = dataList.getDataList();
        }