Android Open Source - JS-log Notification Service

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License

The source code is released under:

GNU General Public License

Java Source Code

/**
 * Copyright 2011 Zoee Silcock (zoeetrope.com)
 * //w  ww. j  a  v  a2  s .  c  o  m
 * This file is part of JSLog.
 * 
 * JSLog 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.
 * 
 * JSLog 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 JSLog.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.zoeetrope.jslog;

import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

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.os.IBinder;

public class NotificationService extends Service {
  
  static final String ACTION_START = "com.zoeetrope.jslog.START_SERVICE";
  static final String ACTION_STOP = "com.zoeetrope.jslog.STOP_SERVICE";
  
  ScheduledThreadPoolExecutor schedule;
  NotificationManager notificationManager;
  LogExtractor extractor;
  
  public NotificationService() {
    this.extractor = new LogExtractor(this);
    this.schedule = new ScheduledThreadPoolExecutor(5);
    this.schedule.scheduleAtFixedRate(extractor, 0, 1, TimeUnit.SECONDS);
  }
  
  @Override
  public IBinder onBind(Intent intent) {
    return null;
  }
  
  @Override
  public void onCreate() {
    String ns = Context.NOTIFICATION_SERVICE;
    this.notificationManager = (NotificationManager) getSystemService(ns);
  }
  
  @Override
  public int onStartCommand(Intent intent, int flags, int startId) {
    if(intent != null) {
      if (ACTION_STOP.equals(intent.getAction())) {
        extractor.stop();
        stopForeground(true);
      } else if (ACTION_START.equals(intent.getAction())) {
        // Schedule the extractor to run once a second.
        extractor.start();
        
        // Let the user know that the service has started.
        Notification notification = new Notification(R.drawable.icon, 
            getText(R.string.service_started), System.currentTimeMillis());
        
        // Tapping the ongoing notification leads to the settings view.
        PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
                    new Intent(this, Settings.class), 0);
        
        notification.setLatestEventInfo(this, getText(R.string.service_running),
            getText(R.string.service_description), contentIntent);
        
        // Make the service ongoing to avoid getting killed.
        startForeground(-1, notification);
      }
    }
    
    return START_STICKY;
  }
  
  public void displayItem(JSLogItem item) {
    long now = System.currentTimeMillis();
    Context context = getApplicationContext();
    
    // Prepare the details view.
    Intent notificationIntent = new Intent(this, Details.class);
    notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    notificationIntent.setAction("JSLogItem" + now);
    notificationIntent.putExtra("jslog.itemId", item.getId());
    notificationIntent.putExtra("jslog.itemMessage", item.getMessage());
    notificationIntent.putExtra("jslog.itemLocation", item.getLocation());
    notificationIntent.putExtra("jslog.itemIcon", item.getIcon());
    
    PendingIntent contentIntent = PendingIntent.getActivity(this, 0, 
        notificationIntent, PendingIntent.FLAG_CANCEL_CURRENT);
    
    Notification notification = new Notification(item.getIcon(), item.getMessage(), now);
    notification.setLatestEventInfo(context, item.getMessage(), item.getLocation(), contentIntent);
    
    notificationManager.notify(item.getId(), notification);
  }
  
  @Override
  public void onDestroy() {
    stopForeground(true);
  }

}

Java Source Code List

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