Java tutorial
//package com.java2s; /* * Copyright (C) 2012 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License */ import android.content.Context; import android.content.SharedPreferences; public class Main { private static final String ALERTS_SHARED_PREFS_NAME = "calendar_alerts"; private static final String KEY_FIRED_ALERT_PREFIX = "preference_alert_"; /** * Returns whether the SharedPrefs storage indicates we have fired the alert before. */ static boolean hasAlertFiredInSharedPrefs(Context context, long eventId, long beginTime, long alarmTime) { SharedPreferences prefs = getFiredAlertsTable(context); return prefs.contains(getFiredAlertsKey(eventId, beginTime, alarmTime)); } public static SharedPreferences getFiredAlertsTable(Context context) { return context.getSharedPreferences(ALERTS_SHARED_PREFS_NAME, Context.MODE_PRIVATE); } private static String getFiredAlertsKey(long eventId, long beginTime, long alarmTime) { StringBuilder sb = new StringBuilder(KEY_FIRED_ALERT_PREFIX); sb.append(eventId); sb.append("_"); sb.append(beginTime); sb.append("_"); sb.append(alarmTime); return sb.toString(); } }