1 package com.example.android.basicnotifications;
2 
3 import android.app.Activity;
4 import android.app.NotificationManager;
5 import android.app.PendingIntent;
6 import android.content.Intent;
7 import android.graphics.BitmapFactory;
8 import android.net.Uri;
9 import android.os.Bundle;
10 import android.support.v4.app.NotificationCompat;
11 import android.view.View;
12 
13 /**
14  * The entry point to the BasicNotification sample.
15  */
16 public class MainActivity extends Activity {
17     /**
18      * A numeric value that identifies the notification that we'll be sending.
19      * This value needs to be unique within this app, but it doesn't need to be
20      * unique system-wide.
21      */
22     public static final int NOTIFICATION_ID = 1;
23 
onCreate(Bundle savedInstanceState)24     public void onCreate(Bundle savedInstanceState) {
25         super.onCreate(savedInstanceState);
26         setContentView(R.layout.sample_layout);
27 
28     }
29 
30     /**
31      * Send a sample notification using the NotificationCompat API.
32      */
sendNotification(View view)33     public void sendNotification(View view) {
34 
35         // BEGIN_INCLUDE(build_action)
36         /** Create an intent that will be fired when the user clicks the notification.
37          * The intent needs to be packaged into a {@link android.app.PendingIntent} so that the
38          * notification service can fire it on our behalf.
39          */
40         Intent intent = new Intent(Intent.ACTION_VIEW,
41                 Uri.parse("http://developer.android.com/reference/android/app/Notification.html"));
42         PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
43         // END_INCLUDE(build_action)
44 
45         // BEGIN_INCLUDE (build_notification)
46         /**
47          * Use NotificationCompat.Builder to set up our notification.
48          */
49         NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
50 
51         /** Set the icon that will appear in the notification bar. This icon also appears
52          * in the lower right hand corner of the notification itself.
53          *
54          * Important note: although you can use any drawable as the small icon, Android
55          * design guidelines state that the icon should be simple and monochrome. Full-color
56          * bitmaps or busy images don't render well on smaller screens and can end up
57          * confusing the user.
58          */
59         builder.setSmallIcon(R.drawable.ic_stat_notification);
60 
61         // Set the intent that will fire when the user taps the notification.
62         builder.setContentIntent(pendingIntent);
63 
64         // Set the notification to auto-cancel. This means that the notification will disappear
65         // after the user taps it, rather than remaining until it's explicitly dismissed.
66         builder.setAutoCancel(true);
67 
68         /**
69          *Build the notification's appearance.
70          * Set the large icon, which appears on the left of the notification. In this
71          * sample we'll set the large icon to be the same as our app icon. The app icon is a
72          * reasonable default if you don't have anything more compelling to use as an icon.
73          */
74         builder.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher));
75 
76         /**
77          * Set the text of the notification. This sample sets the three most commononly used
78          * text areas:
79          * 1. The content title, which appears in large type at the top of the notification
80          * 2. The content text, which appears in smaller text below the title
81          * 3. The subtext, which appears under the text on newer devices. Devices running
82          *    versions of Android prior to 4.2 will ignore this field, so don't use it for
83          *    anything vital!
84          */
85         builder.setContentTitle("BasicNotifications Sample");
86         builder.setContentText("Time to learn about notifications!");
87         builder.setSubText("Tap to view documentation about notifications.");
88 
89         // END_INCLUDE (build_notification)
90 
91         // BEGIN_INCLUDE(send_notification)
92         /**
93          * Send the notification. This will immediately display the notification icon in the
94          * notification bar.
95          */
96         NotificationManager notificationManager = (NotificationManager) getSystemService(
97                 NOTIFICATION_SERVICE);
98         notificationManager.notify(NOTIFICATION_ID, builder.build());
99         // END_INCLUDE(send_notification)
100     }
101 }
102