persistent model

gistfile1.txt

package com.kuapay.library.helperClass;

import android.content.Context;
import android.content.SharedPreferences;

public class DefaultTipHelper
{
    //region Constant Variables
    private static final String TIP_SETTING = "tip_setting";
    private static final String DEFAULT_TIP = "0";
    private final String email;
    //endregion

    //region Variables
    private final SharedPreferences tipSettingsSharedPreferences;
    private final SharedPreferences.Editor editor;
    //endregion

    //region Constructors
    public DefaultTipHelper(Context context, String email)
    {
        tipSettingsSharedPreferences = context.getSharedPreferences(TIP_SETTING, 0);
        editor = tipSettingsSharedPreferences.edit();
        this.email = email;
    }
    //endregion

    //region Getters
    public String getTip()
    {
        String tip = tipSettingsSharedPreferences.getString(email,null);
        if (tip == null)
        {
                editor.putString(email, DEFAULT_TIP).commit();
                return DEFAULT_TIP;
        }

        return tip;
    }
    //endregion

    //region Setters
    public void setTip(String tip)
    {
        editor.putString(email, tip).commit();
    }
    //endregion
}