1 /*
2  * Copyright (C) 2013 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.deskclock.alarms;
18 
19 import android.annotation.TargetApi;
20 import android.content.Context;
21 import android.media.AudioAttributes;
22 import android.os.Build;
23 import android.os.Vibrator;
24 
25 import com.android.deskclock.AsyncRingtonePlayer;
26 import com.android.deskclock.LogUtils;
27 import com.android.deskclock.Utils;
28 import com.android.deskclock.data.DataModel;
29 import com.android.deskclock.provider.AlarmInstance;
30 
31 /**
32  * Manages playing alarm ringtones and vibrating the device.
33  */
34 final class AlarmKlaxon {
35 
36     private static final long[] VIBRATE_PATTERN = {500, 500};
37 
38     private static boolean sStarted = false;
39     private static AsyncRingtonePlayer sAsyncRingtonePlayer;
40 
AlarmKlaxon()41     private AlarmKlaxon() {}
42 
stop(Context context)43     public static void stop(Context context) {
44         if (sStarted) {
45             LogUtils.v("AlarmKlaxon.stop()");
46             sStarted = false;
47             getAsyncRingtonePlayer(context).stop();
48             ((Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE)).cancel();
49         }
50     }
51 
start(Context context, AlarmInstance instance)52     public static void start(Context context, AlarmInstance instance) {
53         // Make sure we are stopped before starting
54         stop(context);
55         LogUtils.v("AlarmKlaxon.start()");
56 
57         if (!AlarmInstance.NO_RINGTONE_URI.equals(instance.mRingtone)) {
58             final long crescendoDuration = DataModel.getDataModel().getAlarmCrescendoDuration();
59             getAsyncRingtonePlayer(context).play(instance.mRingtone, crescendoDuration);
60         }
61 
62         if (instance.mVibrate) {
63             final Vibrator vibrator = getVibrator(context);
64             if (Utils.isLOrLater()) {
65                 vibrateLOrLater(vibrator);
66             } else {
67                 vibrator.vibrate(VIBRATE_PATTERN, 0);
68             }
69         }
70 
71         sStarted = true;
72     }
73 
74     @TargetApi(Build.VERSION_CODES.LOLLIPOP)
vibrateLOrLater(Vibrator vibrator)75     private static void vibrateLOrLater(Vibrator vibrator) {
76         vibrator.vibrate(VIBRATE_PATTERN, 0, new AudioAttributes.Builder()
77                 .setUsage(AudioAttributes.USAGE_ALARM)
78                 .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
79                 .build());
80     }
81 
getVibrator(Context context)82     private static Vibrator getVibrator(Context context) {
83         return ((Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE));
84     }
85 
getAsyncRingtonePlayer(Context context)86     private static synchronized AsyncRingtonePlayer getAsyncRingtonePlayer(Context context) {
87         if (sAsyncRingtonePlayer == null) {
88             sAsyncRingtonePlayer = new AsyncRingtonePlayer(context.getApplicationContext());
89         }
90 
91         return sAsyncRingtonePlayer;
92     }
93 }