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/*
* Copyright (C) 2013 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 com.android.cellbroadcastreceiver;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.media.Ringtone;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.IBinder;
import android.os.SystemClock;
import android.preference.PreferenceManager;
import android.telephony.CellBroadcastMessage;
import android.telephony.SubscriptionManager;
import android.util.Log;
import android.media.AudioManager;
import static com.android.cellbroadcastreceiver.CellBroadcastReceiver.DBG;
import com.android.internal.telephony.PhoneConstants;
/**
* Manages alert reminder notification.
*/
public class CellBroadcastAlertReminder extends Service {
private static final String TAG = "CellBroadcastAlertReminder";
/** Action to wake up and play alert reminder sound. */
static final String ACTION_PLAY_ALERT_REMINDER = "ACTION_PLAY_ALERT_REMINDER";
/**
* Pending intent for alert reminder. This is static so that we don't have to start the
* service in order to cancel any pending reminders when user dismisses the alert dialog.
*/
private static PendingIntent sPlayReminderIntent;
/**
* Alert reminder for current ringtone being played.
*/
private static Ringtone sPlayReminderRingtone;
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// No intent or unrecognized action; tell the system not to restart us.
if (intent == null || !ACTION_PLAY_ALERT_REMINDER.equals(intent.getAction())) {
stopSelf();
return START_NOT_STICKY;
}
int subId = intent.getExtras().getInt(PhoneConstants.SUBSCRIPTION_KEY);
if(DBG) Log.d(TAG, "subscription id = " + subId);
log("playing alert reminder");
playAlertReminderSound();
if (queueAlertReminder(this, false, subId)) {
return START_STICKY;
} else {
log("no reminders queued");
stopSelf();
return START_NOT_STICKY;
}
}
/**
* Use the RingtoneManager to play the alert reminder sound.
*/
private void playAlertReminderSound() {
Uri notificationUri = RingtoneManager.getDefaultUri(
RingtoneManager.TYPE_NOTIFICATION);
if (notificationUri == null) {
loge("Can't get URI for alert reminder sound");
return;
}
Ringtone r = RingtoneManager.getRingtone(this, notificationUri);
r.setStreamType(AudioManager.STREAM_NOTIFICATION);
if (r != null) {
log("playing alert reminder sound");
r.play();
} else {
loge("can't get Ringtone for alert reminder sound");
}
}
/**
* Helper method to start the alert reminder service to queue the alert reminder.
* @return true if a pending reminder was set; false if there are no more reminders
*/
static boolean queueAlertReminder(Context context, boolean firstTime, int subId) {
// Stop any alert reminder sound and cancel any previously queued reminders.
cancelAlertReminder();
int interval = SubscriptionManager.getIntegerSubscriptionProperty(subId,
SubscriptionManager.CB_ALERT_REMINDER_INTERVAL, Integer.parseInt(
CellBroadcastSettings.ALERT_REMINDER_INTERVAL), context);
if (interval == 0 || (interval == 1 && !firstTime)) {
return false;
}
if (interval == 1) {
interval = 2; // "1" = one reminder after 2 minutes
}
if (DBG) log("queueAlertReminder() in " + interval + " minutes");
Intent playIntent = new Intent(context, CellBroadcastAlertReminder.class);
playIntent.setAction(ACTION_PLAY_ALERT_REMINDER);
playIntent.putExtra(PhoneConstants.SUBSCRIPTION_KEY, subId);
sPlayReminderIntent = PendingIntent.getService(context, 0, playIntent,
PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
if (alarmManager == null) {
loge("can't get Alarm Service");
return false;
}
// remind user after 2 minutes or 15 minutes
long triggerTime = SystemClock.elapsedRealtime() + (interval * 60000);
// We use setExact instead of set because this is for emergency reminder.
alarmManager.setExact(AlarmManager.ELAPSED_REALTIME_WAKEUP,
triggerTime, sPlayReminderIntent);
return true;
}
/**
* Stops alert reminder and cancels any queued reminders.
*/
static void cancelAlertReminder() {
if (DBG) log("cancelAlertReminder()");
if (sPlayReminderRingtone != null) {
if (DBG) log("stopping play reminder ringtone");
sPlayReminderRingtone.stop();
sPlayReminderRingtone = null;
}
if (sPlayReminderIntent != null) {
if (DBG) log("canceling pending play reminder intent");
sPlayReminderIntent.cancel();
sPlayReminderIntent = null;
}
}
private static void log(String msg) {
Log.d(TAG, msg);
}
private static void loge(String msg) {
Log.e(TAG, msg);
}
}
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