Java tutorial
//package com.java2s; //License from project: Apache License import android.content.Context; import android.content.SharedPreferences; import android.preference.PreferenceManager; public class Main { private static final String LASTSYNC_PARAM = "lastSync"; public static void updateLastSync(Context context) { long lastSync = getLastSync(context); long now = System.currentTimeMillis(); if (lastSync < now) { SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); SharedPreferences.Editor editor = prefs.edit(); editor.putLong(LASTSYNC_PARAM, now); editor.commit(); } } public static long getLastSync(Context context) { SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); return prefs.getLong(LASTSYNC_PARAM, 0); } }