de.hero.vertretungsplan.CheckForUpdates.java Source code

Introduction

Here is the source code for de.hero.vertretungsplan.CheckForUpdates.java

Source

package de.hero.vertretungsplan;

/* 
Vertretungsplan-App
Copyright (C) 2013  Hendrik Rosendahl
    
This program 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.
    
This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */

/**
 * Diese Klasse wird aufgerufen, wenn in den Optionen die Benachrichtigungen eingeschaltet sind.
 * Dies wird in dem eingestellten Intervall geschehen.
 * Dazu wird HtmlWork erweitert zu HtmlWorkAndNotify, welches die Webseite erneut runterldt und 
 * diese auf Updates berprft.
 * Falls dies der Fall ist wird dem Benutzer eine Benachrichtigung gezeigt.
 */

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.IBinder;
import android.support.v4.app.NotificationCompat;
import android.util.Log;

public class CheckForUpdates extends Service {

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        new HtmlWorkAndNotify(this);
        return Service.START_NOT_STICKY;
    }

    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return null;
    }

    public class HtmlWorkAndNotify extends HtmlWork {

        private Context context;

        public HtmlWorkAndNotify(Context pContext) {
            super(pContext);
            Log.d("HtmlWorkAndNotify", "Constructor");
            context = pContext;
        }

        @Override
        public void onDataChange() {
            super.onDataChange();
            showNotification();
        }

        void showNotification() {
            String ns = Context.NOTIFICATION_SERVICE;
            NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(ns);

            int icon = R.drawable.ic_stat_vertretungsplan;
            long when = System.currentTimeMillis();

            SharedPreferences prefs = context.getSharedPreferences(context.getString(R.string.preferencesName), 0);
            String strAktualisierungsText = prefs.getString(context.getString(R.string.datumVertretungsplan), "");

            CharSequence contentText = context.getString(R.string.planFuerDen)
                    + strAktualisierungsText.substring(0, strAktualisierungsText.indexOf("-") - 1);
            Intent notificationIntent = new Intent(context, MainActivity.class);
            PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);

            Notification notification = new NotificationCompat.Builder(context)
                    .setDefaults(Notification.DEFAULT_ALL).setAutoCancel(true).setContentIntent(contentIntent)
                    .setContentTitle(context.getString(R.string.aktualisierterV_Plan)).setContentText(contentText)
                    .setWhen(when).setSmallIcon(icon).build();

            mNotificationManager.notify(1, notification);
        }
    }
}