NotifyingService.java

samples/ApiDemos/src/com/google/android/samples/app/

Original NotifyingService.java

/* 
 * Copyright (C) 2007 Google Inc.
 *
 * 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.google.android.samples.app;

// Need the following import to get access to the app resources, since this
// class is in a sub-package.
import com.google.android.samples.R;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.os.Parcel;
import android.widget.RemoteViews;

/**
 * This is an example of service that will update its status bar balloon 
 * every 5 seconds for a minute.
 * 
 */
public class NotifyingService extends Service {

    // Use a layout id for a unique identifier
    private static int MOOD_NOTIFICATIONS = R.layout.status_bar_notifications;

    @Override
    protected void onCreate() {
        mNM = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

        // Start up the thread running the service.  Note that we create a
        // separate thread because the service normally runs in the process's
        // main thread, which we don't want to block.
        Thread thr = new Thread(null, mTask, "NotifyingService");
        thr.start();
    }

    @Override
    protected void onDestroy() {
        // Cancel the persistent notification.
        mNM.cancel(MOOD_NOTIFICATIONS);
    }

    private Runnable mTask = new Runnable() {
        public void run() {
            try {
                for (int i = 0; i < 4; ++i) {
                    showNotification(R.drawable.stat_happy,
                            R.string.status_bar_notifications_happy_message);
                    Thread.sleep(5 * 1000);
                    showNotification(R.drawable.stat_neutral,
                            R.string.status_bar_notifications_ok_message);
                    Thread.sleep(5 * 1000);
                    showNotification(R.drawable.stat_sad,
                            R.string.status_bar_notifications_sad_message);
                    Thread.sleep(5 * 1000);
                }
            } catch (Exception ex) {
            }
            // Done with our work...  stop the service!
            NotifyingService.this.stopSelf();
        }
    };

    @Override
    public IBinder onBind(Intent intent) {
        return mBinder;
    }

    private void showNotification(int moodId, int textId) {
        // This is who should be launched if the user selects our notification.
        Intent contentIntent = new Intent(this, NotifyingController.class);

        // This is who should be launched if the user selects the app icon in the notification.
        Intent appIntent = new Intent(this, com.google.android.samples.ApiDemos.class);

        // In this sample, we'll use the same text for the ticker and the expanded notification
        CharSequence text = getText(textId);

        // Note that in this example, we pass null for tickerText.  We update the icon enough that
        // it is distracting to show the ticker text every time it changes.  We strongly suggest
        // that you do this as well.  (Think of of the "New hardware found" or "Network connection
        // changed" messages that always pop up)

        mNM.notify(MOOD_NOTIFICATIONS,              // we use a string id because it is a unique
                                                    // number.  we use it later to cancel the
                                                    // notification
                   new Notification(
                       this,                        // our context
                       moodId,                      // the icon for the status bar
                       null,                        // the text to display in the ticker
                       System.currentTimeMillis(),  // the timestamp for the notification
                       getText(R.string.status_bar_notifications_mood_title),
                                                    // the title for the notification
                       text,                        // the details to display in the notification
                       contentIntent,               // the contentIntent (see above)
                       R.drawable.app_sample_code,  // the app icon
                       getText(R.string.activity_sample_code), // the name of the app
                       appIntent));                 // the appIntent (see above)

    }

    // This is the object that receives interactions from clients.  See
    // RemoteService for a more complete example.
    private final IBinder mBinder = new Binder() {
        @Override
        protected boolean onTransact(int code, Parcel data, Parcel reply, int flags) {
            return super.onTransact(code, data, reply, flags);
        }
    };

    private NotificationManager mNM;
}