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/*
* Copyright (C) 2007 The Android Open Source Project
*
* 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 android.app;
import android.content.Context;
import android.os.RemoteException;
import android.os.Handler;
import android.os.IBinder;
import android.os.ServiceManager;
import android.util.Log;
/**
* Class to notify the user of events that happen. This is how you tell
* the user that something has happened in the background. {@more}
*
* Notifications can take different forms:
* <ul>
* <li>A persistent icon that goes in the status bar and is accessible
* through the launcher, (when the user selects it, a designated Intent
* can be launched),</li>
* <li>Turning on or flashing LEDs on the device, or</li>
* <li>Alerting the user by flashing the backlight, playing a sound,
* or vibrating.</li>
* </ul>
*
* <p>
* Each of the notify methods takes an int id parameter. This id identifies
* this notification from your app to the system, so that id should be unique
* within your app. If you call one of the notify methods with an id that is
* currently active and a new set of notification parameters, it will be
* updated. For example, if you pass a new status bar icon, the old icon in
* the status bar will be replaced with the new one. This is also the same
* id you pass to the {@link #cancel} method to clear this notification.
*
* <p>
* You do not instantiate this class directly; instead, retrieve it through
* {@link android.content.Context#getSystemService}.
*
* @see android.app.Notification
* @see android.content.Context#getSystemService
*/
public class NotificationManager
{
private static String TAG = "NotificationManager";
private static boolean DEBUG = false;
private static boolean localLOGV = DEBUG || android.util.Config.LOGV;
private static INotificationManager sService;
static private INotificationManager getService()
{
if (sService != null) {
return sService;
}
IBinder b = ServiceManager.getService("notification");
sService = INotificationManager.Stub.asInterface(b);
return sService;
}
/*package*/ NotificationManager(Context context, Handler handler)
{
mContext = context;
}
/**
* Persistent notification on the status bar,
*
* @param id An identifier for this notification unique within your
* application.
* @param notification A {@link Notification} object describing how to
* notify the user, other than the view you're providing. If you
* pass null, there will be no persistent notification and no
* flashing, vibration, etc.
*/
public void notify(int id, Notification notification)
{
int[] idOut = new int[1];
INotificationManager service = getService();
String pkg = mContext.getPackageName();
if (localLOGV) Log.v(TAG, pkg + ": notify(" + id + ", " + notification + ")");
try {
service.enqueueNotification(pkg, id, notification, idOut);
if (id != idOut[0]) {
Log.w(TAG, "notify: id corrupted: sent " + id + ", got back " + idOut[0]);
}
} catch (RemoteException e) {
}
}
/**
* Cancel a previously shown notification. If it's transient, the view
* will be hidden. If it's persistent, it will be removed from the status
* bar.
*/
public void cancel(int id)
{
INotificationManager service = getService();
String pkg = mContext.getPackageName();
if (localLOGV) Log.v(TAG, pkg + ": cancel(" + id + ")");
try {
service.cancelNotification(pkg, id);
} catch (RemoteException e) {
}
}
/**
* Cancel all previously shown notifications. See {@link #cancel} for the
* detailed behavior.
*/
public void cancelAll()
{
INotificationManager service = getService();
String pkg = mContext.getPackageName();
if (localLOGV) Log.v(TAG, pkg + ": cancelAll()");
try {
service.cancelAllNotifications(pkg);
} catch (RemoteException e) {
}
}
private Context mContext;
}
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