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/* * Copyright (C) 2008 The Android Open Source Project */*from www . j a v a2s. c o m*/ * 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.deskclock; import android.app.Service; import android.content.Context; import android.content.Intent; import android.content.res.AssetFileDescriptor; import android.content.res.Resources; import android.media.AudioManager; import android.media.MediaPlayer; import android.media.MediaPlayer.OnErrorListener; import android.media.RingtoneManager; import android.net.Uri; import android.os.Handler; import android.os.IBinder; import android.os.Message; import android.os.Vibrator; import android.preference.PreferenceManager; import android.telephony.PhoneStateListener; import android.telephony.TelephonyManager; /** * Manages alarms and vibe. Runs as a service so that it can continue to play * if another activity overrides the AlarmAlert dialog. */ public class AlarmKlaxon extends Service { // Default of 10 minutes until alarm is silenced. private static final String DEFAULT_ALARM_TIMEOUT = "10"; private static final long[] sVibratePattern = new long[] { 500, 500 }; private boolean mPlaying = false; private Vibrator mVibrator; private MediaPlayer mMediaPlayer; private Alarm mCurrentAlarm; private long mStartTime; private TelephonyManager mTelephonyManager; private int mInitialCallState; // Internal messages private static final int KILLER = 1000; private Handler mHandler = new Handler() { @Override public void handleMessage(Message msg) { switch (msg.what) { case KILLER: if (Log.LOGV) { Log.v("*********** Alarm killer triggered ***********"); } sendKillBroadcast((Alarm) msg.obj); stopSelf(); break; } } }; private PhoneStateListener mPhoneStateListener = new PhoneStateListener() { @Override public void onCallStateChanged(int state, String ignored) { // The user might already be in a call when the alarm fires. When // we register onCallStateChanged, we get the initial in-call state // which kills the alarm. Check against the initial call state so // we don't kill the alarm during a call. if (state != TelephonyManager.CALL_STATE_IDLE && state != mInitialCallState) { sendKillBroadcast(mCurrentAlarm); stopSelf(); } } }; @Override public void onCreate() { mVibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE); // Listen for incoming calls to kill the alarm. mTelephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE); mTelephonyManager.listen( mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE); AlarmAlertWakeLock.acquireCpuWakeLock(this); } @Override public void onDestroy() { stop(); Intent alarmDone = new Intent(Alarms.ALARM_DONE_ACTION); sendBroadcast(alarmDone); // Stop listening for incoming calls. mTelephonyManager.listen(mPhoneStateListener, 0); AlarmAlertWakeLock.releaseCpuLock(); } @Override public IBinder onBind(Intent intent) { return null; } @Override public int onStartCommand(Intent intent, int flags, int startId) { // No intent, tell the system not to restart us. if (intent == null) { stopSelf(); return START_NOT_STICKY; } final Alarm alarm = intent.getParcelableExtra( Alarms.ALARM_INTENT_EXTRA); if (alarm == null) { Log.v("AlarmKlaxon failed to parse the alarm from the intent"); stopSelf(); return START_NOT_STICKY; } if (mCurrentAlarm != null) { sendKillBroadcast(mCurrentAlarm); } play(alarm); mCurrentAlarm = alarm; // Record the initial call state here so that the new alarm has the // newest state. mInitialCallState = mTelephonyManager.getCallState(); return START_STICKY; } private void sendKillBroadcast(Alarm alarm) { long millis = System.currentTimeMillis() - mStartTime; int minutes = (int) Math.round(millis / 60000.0); Intent alarmKilled = new Intent(Alarms.ALARM_KILLED); alarmKilled.putExtra(Alarms.ALARM_INTENT_EXTRA, alarm); alarmKilled.putExtra(Alarms.ALARM_KILLED_TIMEOUT, minutes); sendBroadcast(alarmKilled); } // Volume suggested by media team for in-call alarms. private static final float IN_CALL_VOLUME = 0.125f; private void play(Alarm alarm) { // stop() checks to see if we are already playing. stop(); if (Log.LOGV) { Log.v("AlarmKlaxon.play() " + alarm.id + " alert " + alarm.alert); } if (!alarm.silent) { Uri alert = alarm.alert; // Fall back on the default alarm if the database does not have an // alarm stored. if (alert == null) { alert = RingtoneManager.getDefaultUri( RingtoneManager.TYPE_ALARM); if (Log.LOGV) { Log.v("Using default alarm: " + alert.toString()); } } // TODO: Reuse mMediaPlayer instead of creating a new one and/or use // RingtoneManager. mMediaPlayer = new MediaPlayer(); mMediaPlayer.setOnErrorListener(new OnErrorListener() { @Override public boolean onError(MediaPlayer mp, int what, int extra) { Log.e("Error occurred while playing audio."); mp.stop(); mp.release(); mMediaPlayer = null; return true; } }); try { // Check if we are in a call. If we are, use the in-call alarm // resource at a low volume to not disrupt the call. if (mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) { Log.v("Using the in-call alarm"); mMediaPlayer.setVolume(IN_CALL_VOLUME, IN_CALL_VOLUME); setDataSourceFromResource(getResources(), mMediaPlayer, R.raw.in_call_alarm); } else { mMediaPlayer.setDataSource(this, alert); } startAlarm(mMediaPlayer); } catch (Exception ex) { Log.v("Using the fallback ringtone"); // The alert may be on the sd card which could be busy right // now. Use the fallback ringtone. try { // Must reset the media player to clear the error state. mMediaPlayer.reset(); setDataSourceFromResource(getResources(), mMediaPlayer, R.raw.fallbackring); startAlarm(mMediaPlayer); } catch (Exception ex2) { // At this point we just don't play anything. Log.e("Failed to play fallback ringtone", ex2); } } } /* Start the vibrator after everything is ok with the media player */ if (alarm.vibrate) { mVibrator.vibrate(sVibratePattern, 0); } else { mVibrator.cancel(); } enableKiller(alarm); mPlaying = true; mStartTime = System.currentTimeMillis(); } // Do the common stuff when starting the alarm. private void startAlarm(MediaPlayer player) throws java.io.IOException, IllegalArgumentException, IllegalStateException { final AudioManager audioManager = (AudioManager)getSystemService(Context.AUDIO_SERVICE); // do not play alarms if stream volume is 0 // (typically because ringer mode is silent). if (audioManager.getStreamVolume(AudioManager.STREAM_ALARM) != 0) { player.setAudioStreamType(AudioManager.STREAM_ALARM); player.setLooping(true); player.prepare(); player.start(); } } private void setDataSourceFromResource(Resources resources, MediaPlayer player, int res) throws java.io.IOException { AssetFileDescriptor afd = resources.openRawResourceFd(res); if (afd != null) { player.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength()); afd.close(); } } /** * Stops alarm audio and disables alarm if it not snoozed and not * repeating */ public void stop() { if (Log.LOGV) Log.v("AlarmKlaxon.stop()"); if (mPlaying) { mPlaying = false; // Stop audio playing if (mMediaPlayer != null) { mMediaPlayer.stop(); mMediaPlayer.release(); mMediaPlayer = null; } // Stop vibrator mVibrator.cancel(); } disableKiller(); } /** * Kills alarm audio after ALARM_TIMEOUT_SECONDS, so the alarm * won't run all day. * * This just cancels the audio, but leaves the notification * popped, so the user will know that the alarm tripped. */ private void enableKiller(Alarm alarm) { final String autoSnooze = PreferenceManager.getDefaultSharedPreferences(this) .getString(SettingsActivity.KEY_AUTO_SILENCE, DEFAULT_ALARM_TIMEOUT); int autoSnoozeMinutes = Integer.parseInt(autoSnooze); if (autoSnoozeMinutes != -1) { mHandler.sendMessageDelayed(mHandler.obtainMessage(KILLER, alarm), 1000 * autoSnoozeMinutes * 60); } } private void disableKiller() { mHandler.removeMessages(KILLER); } }