Android Open Source - RSSReader Update Service

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License

The source code is released under:

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Java Source Code

package net.uyghurdev.avaroid.rssreader.service;
//from w ww .  ja v a 2s. c o  m
import java.io.IOException;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Timer;
import java.util.TimerTask;
import javax.xml.parsers.ParserConfigurationException;

import net.uyghurdev.avaroid.rssreader.Configs;
import net.uyghurdev.avaroid.rssreader.R;
import net.uyghurdev.avaroid.rssreader.RSSReaderActivity;
import net.uyghurdev.avaroid.rssreader.data.*;
import net.uyghurdev.avaroid.rssreader.operator.Feed;
import net.uyghurdev.avaroid.rssreader.operator.FeedParser;
import net.uyghurdev.avaroid.rssreader.operator.NetworkOperator;

import org.xml.sax.SAXException;

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.content.pm.PackageManager.NameNotFoundException;
import android.graphics.Typeface;
import android.os.Binder;
import android.os.IBinder;

public class UpdateService extends Service {

  private Timer mainTimer;
  private Timer findWiFi;
  private int HOUR;
  private int MINUTE;
  private int RATIO;
  private long delay;
  private long REPEAT;
  private int times = 0;
  // private final long HOUR = 3600000;
  private final IBinder mBinder = new LocalBinder();

  public class LocalBinder extends Binder {
    UpdateService getService() {
      return UpdateService.this;
    }
  }

  private TimerTask repeatTask = new TimerTask() {

    @Override
    public void run() {
      // TODO Auto-generated method stub
      NetworkOperator net = new NetworkOperator();
      if (net.getNetworkState(UpdateService.this) == 1
          || times >= 24 * 6 / RATIO) {
//        Log.d("Repeat", "Finally I got WiFi Connection!");
        findWiFi.cancel();
        FeedData data = new FeedData(UpdateService.this);
        showUpdatingNotif();
        int before = data.getItemCount();
//        Log.d("Repeat", "Update Started");
        updateFeeds();
        FeedData data2 = new FeedData(UpdateService.this);
        int after = data2.getItemCount();
        showUpdatedNotif(after - before);
      }
//      Log.d("Repeat", "There is no WiFi Connection!");
      times++;
    }

  };

  private TimerTask updateTask = new TimerTask() {
    @Override
    public void run() {
      // Log.i("TimerTask", "Timer task doing work");
  
      NetworkOperator net = new NetworkOperator();
      if (net.getNetworkState(UpdateService.this) == 1) {
        FeedData data = new FeedData(UpdateService.this);
        showUpdatingNotif();
        int before = data.getItemCount();
//        Log.d("Service", "Update Started");
        updateFeeds();
        FeedData data2 = new FeedData(UpdateService.this);
        int after = data2.getItemCount();
        showUpdatedNotif(after - before);
      } else {
//        Log.d("Service", "No WiFi");
        findWiFi = new Timer();
        findWiFi.schedule(repeatTask, 0, 600000);
      }

    }

  };

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

  @Override
  public int onStartCommand(Intent intent, int flags, int startId) {
    // Log.i("LocalService", "Received start id " + startId + ": " +
    // intent);
    // We want this service to continue running until it is explicitly
    // stopped, so return sticky.
    return START_STICKY;
  }

  @Override
  public void onCreate() {
    // code to execute when the service is first created
    getPreferences();
//    Log.d("Service", "Service created");
    Calendar cal = Calendar.getInstance();
    int h = cal.get(Calendar.HOUR_OF_DAY);
    int m = cal.get(Calendar.MINUTE);
    long now = h * 36000000 + m * 60000;
    long set = HOUR * 36000000 + MINUTE * 60000;
    if (set > now) {
      delay = (set - now) % REPEAT;
    } else {
      delay = REPEAT - (now - set) % REPEAT;
    }

    mainTimer = new Timer("UpdateTimer");
    mainTimer.schedule(updateTask, delay, REPEAT);
//    Log.d("Service", "Update triggered");
//    Log.d("Set to", "" + set / 1000);
//    Log.d("Now", "" + now / 1000);
//    Log.d("Delay", "" + delay / 1000);

  }

  private void getPreferences() {
    // TODO Auto-generated method stub
    Context otherAppsContext = null;
    try {
      otherAppsContext = createPackageContext(this.getPackageName(), 0);
    } catch (NameNotFoundException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
    SharedPreferences getPreferences = otherAppsContext
        .getSharedPreferences("RSSReader", Context.MODE_PRIVATE);


    RATIO = getPreferences.getInt("UpdateRatio", 1);
    HOUR = getPreferences.getInt("Hour", 8);
    MINUTE = getPreferences.getInt("Minute", 30);
    if (RATIO == 0) {
      RATIO = 1;
    }
    REPEAT = 36000000 * 24 / RATIO;

  }

  @Override
  public void onDestroy() {
    // code to execute when the service is shutting down
    // Log.i("Service", "Destroyed");
  }

  @Override
  public void onStart(Intent intent, int startid) {
    // code to execute when the service is starting up
    // Log.i("Service", "Started");
  }

  private void updateFeeds() {
    // TODO Auto-generated method stub
    // Log.i("Service", "Updating feeds");
    ArrayList<Feed> feeds = new ArrayList<Feed>();
    FeedData data = new FeedData(this);
    FeedParser prsr = new FeedParser();
    feeds = data.getFeeds();
    for (Feed feed : feeds) {
      try {
        prsr.parseFeed(this, feed.getId(), feed.getUrl());
      } catch (ParserConfigurationException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      } catch (SAXException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
      }

    }
    // Log.i("Service", "Update ended");
  }

  private void showUpdatingNotif() {
    // TODO Auto-generated method stub
    String ns = Context.NOTIFICATION_SERVICE;
    NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);
    int icon = R.drawable.icon;
    CharSequence tickerText = getString(R.string.updating_started);
    long when = System.currentTimeMillis();
    
    Notification notification = new Notification(icon, tickerText, when);
    
    
    Context context = getApplicationContext();
    CharSequence contentTitle = getString(R.string.updating_now);
    // CharSequence contentText = getString(R.string.updating_started);
    Intent notificationIntent = new Intent(this, RSSReaderActivity.class);
    PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
        notificationIntent, 0);

    notification.setLatestEventInfo(context, contentTitle, "",
        contentIntent);
    final int HELLO_ID = 1;

    mNotificationManager.notify(HELLO_ID, notification);
  }

  private void showUpdatedNotif(int i) {
    // TODO Auto-generated method stub
    String ns = Context.NOTIFICATION_SERVICE;
    NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);
    mNotificationManager.cancel(1);
    int icon = R.drawable.icon;
    CharSequence tickerText = getString(R.string.update_finish);
    long when = System.currentTimeMillis();

    Notification notification = new Notification(icon, tickerText, when);
    Context context = getApplicationContext();
    CharSequence contentTitle = "";
    if (i > 0) {
      contentTitle = getString(R.string.new_items).replace("%n", "" + i);
    } else {
      contentTitle = getString(R.string.no_new_item);
    }

    // CharSequence contentText = getString(R.string.updating_started);
    Intent notificationIntent = new Intent(this, RSSReaderActivity.class);
    PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
        notificationIntent, 0);

    notification.setLatestEventInfo(context, contentTitle, "",
        contentIntent);
    final int UPDATED_ID = 2;
    notification.flags |= Notification.FLAG_AUTO_CANCEL;
    mNotificationManager.notify(UPDATED_ID, notification);
  }

}

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