1*d353a188SXin Li 2*d353a188SXin LiAndroid BasicNotifications Sample 3*d353a188SXin Li=================================== 4*d353a188SXin Li 5*d353a188SXin LiA basic app showing how to display events in the system's notification bar using 6*d353a188SXin Lithe NotificationCompat API. 7*d353a188SXin LiNotificationCompat API is used for compatibility with older devices, running Android 8*d353a188SXin Li1.6 (Donut) (API level 4) or newer. 9*d353a188SXin Li 10*d353a188SXin LiIntroduction 11*d353a188SXin Li------------ 12*d353a188SXin Li 13*d353a188SXin LiThe [Notification API][1] allows the app developers to display a message outside 14*d353a188SXin Liof your application's normal UI. 15*d353a188SXin Li 16*d353a188SXin LiThe class [Notification][2] was added in the Android 3.0 (API level 11), but this 17*d353a188SXin Lisample refers to the [NotificationCompat][3] class (part of the [support library][4]), 18*d353a188SXin Li which offers the same functionality for Android 1.6 (API level 4) or newer. 19*d353a188SXin Li 20*d353a188SXin LiA Notificaiton can be created using Notification.Builder object. 21*d353a188SXin LiAt bare minimum, a Builder object must include the following: 22*d353a188SXin Li- A small icon, set by [setSmallIcon()][5] 23*d353a188SXin Li- A title, set by [setContentTitle()][6] 24*d353a188SXin Li- Detail text, set by [setContentText()][7] 25*d353a188SXin Li 26*d353a188SXin Liin the code snippet, it looks like following. 27*d353a188SXin Li```java 28*d353a188SXin LiNotificationCompat.Builder builder = new NotificationCompat.Builder(this); 29*d353a188SXin Libuilder.setSmallIcon(R.drawable.ic_stat_notification); 30*d353a188SXin Libuilder.setContentTitle("BasicNotifications Sample"); 31*d353a188SXin Libuilder.setContentText("Time to learn about notifications!"); 32*d353a188SXin Li``` 33*d353a188SXin Li 34*d353a188SXin LiTo issue the notification, call notify() method in the [NotificationManager][8]. 35*d353a188SXin LiThe code snippet will immediately display the notification icon in the 36*d353a188SXin Linotification bar. 37*d353a188SXin Li 38*d353a188SXin Li```java 39*d353a188SXin LiNotificationManager notificationManager = (NotificationManager) getSystemService( 40*d353a188SXin Li NOTIFICATION_SERVICE); 41*d353a188SXin LinotificationManager.notify(NOTIFICATION_ID, builder.build()); 42*d353a188SXin Li``` 43*d353a188SXin Li 44*d353a188SXin Li[1]: http://developer.android.com/guide/topics/ui/notifiers/notifications.html 45*d353a188SXin Li[2]: http://developer.android.com/reference/android/app/Notification.html 46*d353a188SXin Li[3]: http://developer.android.com/reference/android/support/v4/app/NotificationCompat.html 47*d353a188SXin Li[4]: http://developer.android.com/tools/support-library/index.html 48*d353a188SXin Li[5]: http://developer.android.com/reference/android/support/v4/app/NotificationCompat.Builder.html#setSmallIcon(int) 49*d353a188SXin Li[6]: http://developer.android.com/reference/android/support/v4/app/NotificationCompat.Builder.html#setContentTitle(java.lang.CharSequence) 50*d353a188SXin Li[7]: http://developer.android.com/reference/android/support/v4/app/NotificationCompat.Builder.html#setContentText(java.lang.CharSequence) 51*d353a188SXin Li[8]: http://developer.android.com/reference/android/app/NotificationManager.html 52*d353a188SXin Li 53*d353a188SXin LiPre-requisites 54*d353a188SXin Li-------------- 55*d353a188SXin Li 56*d353a188SXin Li- Android SDK 27 57*d353a188SXin Li- Android Build Tools v27.0.2 58*d353a188SXin Li- Android Support Repository 59*d353a188SXin Li 60*d353a188SXin LiScreenshots 61*d353a188SXin Li------------- 62*d353a188SXin Li 63*d353a188SXin Li<img src="screenshots/main.png" height="400" alt="Screenshot"/> 64*d353a188SXin Li 65*d353a188SXin LiGetting Started 66*d353a188SXin Li--------------- 67*d353a188SXin Li 68*d353a188SXin LiThis sample uses the Gradle build system. To build this project, use the 69*d353a188SXin Li"gradlew build" command or use "Import Project" in Android Studio. 70*d353a188SXin Li 71*d353a188SXin LiSupport 72*d353a188SXin Li------- 73*d353a188SXin Li 74*d353a188SXin Li- Google+ Community: https://plus.google.com/communities/105153134372062985968 75*d353a188SXin Li- Stack Overflow: http://stackoverflow.com/questions/tagged/android 76*d353a188SXin Li 77*d353a188SXin LiIf you've found an error in this sample, please file an issue: 78*d353a188SXin Lihttps://github.com/googlesamples/android-BasicNotifications 79*d353a188SXin Li 80*d353a188SXin LiPatches are encouraged, and may be submitted by forking this project and 81*d353a188SXin Lisubmitting a pull request through GitHub. Please see CONTRIBUTING.md for more details. 82*d353a188SXin Li 83*d353a188SXin LiLicense 84*d353a188SXin Li------- 85*d353a188SXin Li 86*d353a188SXin LiCopyright 2017 The Android Open Source Project, Inc. 87*d353a188SXin Li 88*d353a188SXin LiLicensed to the Apache Software Foundation (ASF) under one or more contributor 89*d353a188SXin Lilicense agreements. See the NOTICE file distributed with this work for 90*d353a188SXin Liadditional information regarding copyright ownership. The ASF licenses this 91*d353a188SXin Lifile to you under the Apache License, Version 2.0 (the "License"); you may not 92*d353a188SXin Liuse this file except in compliance with the License. You may obtain a copy of 93*d353a188SXin Lithe License at 94*d353a188SXin Li 95*d353a188SXin Lihttp://www.apache.org/licenses/LICENSE-2.0 96*d353a188SXin Li 97*d353a188SXin LiUnless required by applicable law or agreed to in writing, software 98*d353a188SXin Lidistributed under the License is distributed on an "AS IS" BASIS, WITHOUT 99*d353a188SXin LiWARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 100*d353a188SXin LiLicense for the specific language governing permissions and limitations under 101*d353a188SXin Lithe License. 102