README.md
1
2 Android BasicNotifications Sample
3 ===================================
4
5 A basic app showing how to display events in the system's notification bar using
6 the NotificationCompat API.
7 NotificationCompat API is used for compatibility with older devices, running Android
8 1.6 (Donut) (API level 4) or newer.
9
10 Introduction
11 ------------
12
13 The [Notification API][1] allows the app developers to display a message outside
14 of your application's normal UI.
15
16 The class [Notification][2] was added in the Android 3.0 (API level 11), but this
17 sample refers to the [NotificationCompat][3] class (part of the [support library][4]),
18 which offers the same functionality for Android 1.6 (API level 4) or newer.
19
20 A Notificaiton can be created using Notification.Builder object.
21 At bare minimum, a Builder object must include the following:
22 - A small icon, set by [setSmallIcon()][5]
23 - A title, set by [setContentTitle()][6]
24 - Detail text, set by [setContentText()][7]
25
26 in the code snippet, it looks like following.
27 ```java
28 NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
29 builder.setSmallIcon(R.drawable.ic_stat_notification);
30 builder.setContentTitle("BasicNotifications Sample");
31 builder.setContentText("Time to learn about notifications!");
32 ```
33
34 To issue the notification, call notify() method in the [NotificationManager][8].
35 The code snippet will immediately display the notification icon in the
36 notification bar.
37
38 ```java
39 NotificationManager notificationManager = (NotificationManager) getSystemService(
40 NOTIFICATION_SERVICE);
41 notificationManager.notify(NOTIFICATION_ID, builder.build());
42 ```
43
44 [1]: http://developer.android.com/guide/topics/ui/notifiers/notifications.html
45 [2]: http://developer.android.com/reference/android/app/Notification.html
46 [3]: http://developer.android.com/reference/android/support/v4/app/NotificationCompat.html
47 [4]: http://developer.android.com/tools/support-library/index.html
48 [5]: http://developer.android.com/reference/android/support/v4/app/NotificationCompat.Builder.html#setSmallIcon(int)
49 [6]: http://developer.android.com/reference/android/support/v4/app/NotificationCompat.Builder.html#setContentTitle(java.lang.CharSequence)
50 [7]: http://developer.android.com/reference/android/support/v4/app/NotificationCompat.Builder.html#setContentText(java.lang.CharSequence)
51 [8]: http://developer.android.com/reference/android/app/NotificationManager.html
52
53 Pre-requisites
54 --------------
55
56 - Android SDK 24
57 - Android Build Tools v24.0.2
58 - Android Support Repository
59
60 Screenshots
61 -------------
62
63 <img src="screenshots/main.png" height="400" alt="Screenshot"/>
64
65 Getting Started
66 ---------------
67
68 This sample uses the Gradle build system. To build this project, use the
69 "gradlew build" command or use "Import Project" in Android Studio.
70
71 Support
72 -------
73
74 - Google+ Community: https://plus.google.com/communities/105153134372062985968
75 - Stack Overflow: http://stackoverflow.com/questions/tagged/android
76
77 If you've found an error in this sample, please file an issue:
78 https://github.com/googlesamples/android-BasicNotifications
79
80 Patches are encouraged, and may be submitted by forking this project and
81 submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
82
83 License
84 -------
85
86 Copyright 2016 The Android Open Source Project, Inc.
87
88 Licensed to the Apache Software Foundation (ASF) under one or more contributor
89 license agreements. See the NOTICE file distributed with this work for
90 additional information regarding copyright ownership. The ASF licenses this
91 file to you under the Apache License, Version 2.0 (the "License"); you may not
92 use this file except in compliance with the License. You may obtain a copy of
93 the License at
94
95 http://www.apache.org/licenses/LICENSE-2.0
96
97 Unless required by applicable law or agreed to in writing, software
98 distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
99 WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
100 License for the specific language governing permissions and limitations under
101 the License.
102