Android Open Source - PhotoGallery Poll Service

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Back to project page PhotoGallery.

License

The source code is released under:

MIT License

Java Source Code

package com.ambergleam.photogallery;
/*  w  ww .  j  a v  a2s.com*/
import java.util.ArrayList;

import android.app.AlarmManager;
import android.app.IntentService;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.res.Resources;
import android.net.ConnectivityManager;
import android.preference.PreferenceManager;
import android.support.v4.app.NotificationCompat;
import android.util.Log;

public class PollService extends IntentService {

  private static final String TAG = "PollService";

  private static final int POLL_INTERVAL = 1000 * 60 * 5; // 5 minutes

  public PollService() {
    super(TAG);
  }

  @Override
  protected void onHandleIntent(Intent intent) {
    Log.i(TAG, "Received an intent: " + intent);
    ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    @SuppressWarnings("deprecation")
    boolean isNetworkAvailable = cm.getBackgroundDataSetting() && cm.getActiveNetworkInfo() != null;

    if (!isNetworkAvailable) {
      return;
    }

    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
    String query = prefs.getString(FlickrFetchr.PREF_SEARCH_QUERY, null);
    String lastResultId = prefs.getString(FlickrFetchr.PREF_LAST_RESULT_ID, null);

    ArrayList<GalleryItem> items;
    if (query != null) {
      items = new FlickrFetchr().search(query);
    } else {
      items = new FlickrFetchr().fetchItems();
    }

    if (items.size() == 0) {
      return;
    }

    String resultId = items.get(0).getId();

    if (!resultId.equals(lastResultId)) {
      Log.i(TAG, "Got a new result: " + resultId);

      Resources r = getResources();
      PendingIntent pi = PendingIntent.getActivity(this, 0, new Intent(this, PhotoGalleryActivity.class), 0);

      Notification notification = new NotificationCompat.Builder(this).setTicker(r.getString(R.string.new_pictures_title)).setSmallIcon(android.R.drawable.ic_menu_report_image).setContentTitle(r.getString(R.string.new_pictures_title)).setContentText(r.getString(R.string.new_pictures_text)).setContentIntent(pi)
          .setAutoCancel(true).build();

      NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
      notificationManager.notify(0, notification);

    } else {
      Log.i(TAG, "Got an old result: " + resultId);
    }

    prefs.edit().putString(FlickrFetchr.PREF_LAST_RESULT_ID, resultId);

  }

  public static void setServiceAlarm(Context context, boolean isOn) {
    Intent i = new Intent(context, PollService.class);
    PendingIntent pi = PendingIntent.getService(context, 0, i, 0);

    AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);

    if (isOn) {
      alarmManager.setRepeating(AlarmManager.RTC, System.currentTimeMillis(), POLL_INTERVAL, pi);
    } else {
      alarmManager.cancel(pi);
      pi.cancel();
    }

  }

  public static boolean isServiceAlarmOn(Context context) {
    Intent i = new Intent(context, PollService.class);
    PendingIntent pi = PendingIntent.getService(context, 0, i, PendingIntent.FLAG_NO_CREATE);
    return pi != null;
  }

}

Java Source Code List

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