1 <?xml version="1.0" encoding="UTF-8"?> 2 <!-- 3 Copyright 2013 The Android Open Source Project 4 5 Licensed under the Apache License, Version 2.0 (the "License"); 6 you may not use this file except in compliance with the License. 7 You may obtain a copy of the License at 8 9 http://www.apache.org/licenses/LICENSE-2.0 10 11 Unless required by applicable law or agreed to in writing, software 12 distributed under the License is distributed on an "AS IS" BASIS, 13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 See the License for the specific language governing permissions and 15 limitations under the License. 16 --> 17 <sample> 18 <name>MessagingService</name> 19 <group>Notification</group> 20 <package>com.example.android.messagingservice</package> 21 22 <minSdk>21</minSdk> 23 24 <strings> 25 <intro> 26 <![CDATA[ 27 This sample shows a simple service that sends notifications using 28 NotificationCompat. In addition to sending a notification, it also extends 29 the notification with a CarExtender to make it compatible with Android Auto. 30 Each unread conversation from a user is sent as a distinct notification. 31 ]]> 32 </intro> 33 </strings> 34 35 <template src="base-build" /> 36 <template src="base-application" /> 37 <metadata> 38 <status>PUBLISHED</status> 39 <categories>UI, Notification</categories> 40 <technologies>Android</technologies> 41 <languages>Java</languages> 42 <solutions>Mobile</solutions> 43 <level>ADVANCED</level> 44 <icon>screenshots/icon-web.png</icon> 45 <screenshots> 46 <img>screenshots/1-main.png</img> 47 <img>screenshots/2-onemessage.png</img> 48 <img>screenshots/3-threemessages.png</img> 49 </screenshots> 50 <api_refs> 51 <android>android.app.Service</android> 52 <android>android.content.Intent</android> 53 <android>android.support.v4.app.NotificationCompat</android> 54 <android>android.support.v4.app.NotificationCompat.CarExtender</android> 55 </api_refs> 56 <description> 57 <![CDATA[ 58 This sample shows a simple service that sends notifications using 59 NotificationCompat. In addition to sending a notification, it also extends 60 the notification with a CarExtender to make it compatible with Android Auto. 61 Each unread conversation from a user is sent as a distinct notification. 62 ]]></description> 63 <intro> 64 <![CDATA[ 65 #### Checklist while building a messaging app that supports Android Auto: 66 1. Ensure that Message notifications are extended using 67 NotificationCompat.Builder.extend(new CarExtender()...) 68 2. Declare a meta-data tag to your AndroidManifest.xml to specify that your app 69 is automotive enabled. 70 71 example: AndroidManifest.xml 72 73 ``` 74 <meta-data android:name="com.google.android.gms.car.application" 75 android:resource="@xml/automotive_app_desc"/> 76 ``` 77 78 Include the following to indicate that the application wants to show notifications on 79 the Android Auto overview screen. 80 81 example: res/xml/automotive\_app\_desc.xml 82 ``` 83 <automotiveApp> 84 <uses name="notification"/> 85 </automotiveApp> 86 ``` 87 88 #### Flow 89 MessagingFragment is shown to the user. Depending on the button clicked, the MessagingService is 90 sent a message. MessagingService in turn creates notifications which can be viewed either on the 91 device or in the messaging-simulator. 92 93 When a message is read, the associated PendingIntent is triggered and MessageReadReceiver is called 94 with the appropriate conversationId. Similarly, when a reply is received, the MessageReplyReceiver 95 is called with the appropriate conversationId. MessageLogger logs each event and shows them in a 96 TextView in MessagingFragment for correlation. 97 ]]> 98 </intro> 99 </metadata> 100 </sample> 101
