NotificationUtil.java

/*
 * Copyright (C) 2011 The original author or authors.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package com.zapta.apps.maniana.notifications;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;

import com.zapta.apps.maniana.R;
import com.zapta.apps.maniana.annotations.ApplicationScope;
import com.zapta.apps.maniana.main.MainActivity;
import com.zapta.apps.maniana.util.LogUtil;

/**
 * Notifcation operations.
 * 
 * @author Tal Dayan
 */
@ApplicationScope
public class NotificationUtil {
    /** Arbitrary notification ID, unique within this app. */
    private static final int NOTIFICATION_ID = 1000;

    /**
     * Send pending items notification. Ok to call multiple times (they do not accumulate).
     * pendingItemsCount should be >= 1. Should be called only if notifications are enabled in app
     * settings.
     */
    public static void sendPendingItemsNotification(Context context, int pendingItemsCount,
            boolean enableLed) {
        LogUtil.info("Sending notification (%d items)", pendingItemsCount);

        final NotificationManager notificationManager = (NotificationManager) context
                .getSystemService(Context.NOTIFICATION_SERVICE);

        // TODO: set this to midnight.
        final long when = System.currentTimeMillis();

        final String title = (pendingItemsCount == 1) ? context
                .getString(R.string.notification_title_single_task) : context.getString(
                R.string.notification_title_d_tasks, pendingItemsCount);

        // NOTE: we use title also as the temporary ticker string.
        final Notification notification = new Notification(R.drawable.app_notification_icon, title,
                when);

        if (enableLed) {
            notification.ledARGB = 0xff00ff00;
            notification.ledOnMS = 300;
            notification.ledOffMS = 1000;
            notification.flags |= Notification.FLAG_SHOW_LIGHTS;
        }

        // notification.flags |= Notification.FLAG_ONLY_ALERT_ONCE;
        notification.flags |= Notification.FLAG_AUTO_CANCEL;
        notification.number = pendingItemsCount;

        final String content = context.getString(R.string.notification_content);

        final Intent notificationIntent = new Intent(context, MainActivity.class);
        final PendingIntent pendingItent = PendingIntent.getActivity(context, 0,
                notificationIntent, 0);

        notification.setLatestEventInfo(context, title, content, pendingItent);

        notificationManager.notify(NOTIFICATION_ID, notification);
    }

    /** Clear any pending notification. */
    public static void clearPendingItemsNotification(Context context) {
        final NotificationManager notificationManager = (NotificationManager) context
                .getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.cancel(NOTIFICATION_ID);
    }
}