Java tutorial
/* * This file is part of Prepay Credit for Android * * Copyright 2013 Damien O'Reilly * * Prepay Credit for Android is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Prepay Credit for Android is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Prepay Credit for Android. If not, see <http://www.gnu.org/licenses/>. * * Report bugs or new features at: https://github.com/DamienOReilly/PrepayCredit * Contact the author at: damienreilly@gmail.com */ package damo.three.ie.prepay; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.preference.PreferenceManager; import damo.three.ie.prepayusage.BasicUsageItem; import damo.three.ie.prepayusage.UsageItem; import damo.three.ie.util.JSONUtils; import damo.three.ie.util.UsageUtils; import org.json.JSONArray; import org.json.JSONException; import java.util.List; /** * This class is executed when the phone boots up to set internet add-on expiring alarms. As alarms aren't * persisted across reboots on Android. */ public class InternetAddonAlarmManagerReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { SharedPreferences sharedPrefsUsages = context.getSharedPreferences("damo.three.ie.previous_usage", Context.MODE_PRIVATE); SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context); boolean notificationsEnabled = sharedPrefs.getBoolean("notification", true); String usages = sharedPrefsUsages.getString("usage_info", null); // first check if anything was persisted if (usages != null) { try { List<UsageItem> usageItems = JSONUtils.jsonToUsageItems(new JSONArray(usages)); List<BasicUsageItem> basicUsageItems = UsageUtils.getAllBasicItems(usageItems); UsageUtils.registerInternetExpireAlarm(context, basicUsageItems, notificationsEnabled, false); } catch (JSONException e) { e.printStackTrace(); } } } }