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.camera.app;
18 
19 import android.app.Application;
20 import android.app.NotificationManager;
21 import android.content.Context;
22 import android.os.Debug;
23 
24 import com.android.camera.stats.UsageStatistics;
25 import com.android.camera.stats.profiler.Profile;
26 import com.android.camera.stats.profiler.Profilers;
27 import com.android.camera.util.AndroidContext;
28 import com.android.camera.util.AndroidServices;
29 
30 
31 /**
32  * The Camera application class containing important services and functionality
33  * to be used across modules.
34  */
35 public class CameraApp extends Application {
36     /**
37      * This is for debugging only: If set to true, application will not start
38      * until a debugger is attached.
39      * <p>
40      * Use this if you need to debug code that is executed while the app starts
41      * up and it would be too late to attach a debugger afterwards.
42      */
43     private static final boolean WAIT_FOR_DEBUGGER_ON_START = false;
44 
45     @Override
onCreate()46     public void onCreate() {
47         super.onCreate();
48 
49         if (WAIT_FOR_DEBUGGER_ON_START) {
50             Debug.waitForDebugger();
51         }
52 
53         // Android context must be the first item initialized.
54         Context context = getApplicationContext();
55         AndroidContext.initialize(context);
56 
57         // This will measure and write to the exception handler if
58         // the time between any two calls or the total time from
59         // start to stop is over 10ms.
60         Profile guard = Profilers.instance().guard("CameraApp onCreate()");
61 
62         // It is important that this gets called early in execution before the
63         // app has had the opportunity to touch shared preferences.
64         FirstRunDetector.instance().initializeTimeOfFirstRun(context);
65         guard.mark("initializeTimeOfFirstRun");
66 
67         UsageStatistics.instance().initialize(this);
68         guard.mark("UsageStatistics.initialize");
69 
70         clearNotifications();
71         guard.stop("clearNotifications");
72     }
73 
74     /**
75      * Clears all notifications. This cleans up notifications that we might have
76      * created earlier but remained after a crash.
77      */
clearNotifications()78     private void clearNotifications() {
79         NotificationManager manager = AndroidServices.instance().provideNotificationManager();
80         if (manager != null) {
81             manager.cancelAll();
82         }
83     }
84 }
85