Android - Notifications - 1

Creating a simple notification

 NotificationCompat.Builder mBuilder =  
          new NotificationCompat.Builder(this)  
          .setSmallIcon(R.drawable.ic_launcher)  
          .setContentTitle("DJ-Android notification")  
          .setContentText("Hello World!");  
      // Creates an explicit intent for an Activity in your app  
      Intent resultIntent = new Intent(this, test.class);  
      // The stack builder object will contain an artificial back stack for the  
      // started Activity.  
      // This ensures that navigating backward from the Activity leads out of  
      // your application to the Home screen.  
      TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);  
      // Adds the back stack for the Intent (but not the Intent itself)  
      stackBuilder.addParentStack(test.class);  
      // Adds the Intent that starts the Activity to the top of the stack  
      stackBuilder.addNextIntent(resultIntent);  
      PendingIntent resultPendingIntent =  
          stackBuilder.getPendingIntent(  
            0,  
            PendingIntent.FLAG_UPDATE_CURRENT  
          );  
      mBuilder.setContentIntent(resultPendingIntent);  
      NotificationManager mNotificationManager =  
        (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);  
      // mId allows you to update the notification later on.  
      mNotificationManager.notify(100, mBuilder.build());  

Custom Notification Layouts with Button click

For custom notification you have to create layout like below

 <?xml version="1.0" encoding="UTF-8"?>  
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
   android:layout_width="fill_parent"  
   android:layout_height="fill_parent"  
   android:gravity="center"  
   android:orientation="horizontal" >  
   <TextView  
     android:id="@+id/textView1"  
     android:layout_width="wrap_content"  
     android:layout_height="wrap_content"  
     android:gravity="center"  
     android:text="DJ notification"  
     android:textAppearance="?android:attr/textAppearanceMedium" />  
   <Button  
     android:id="@+id/button1"  
     android:layout_width="wrap_content"  
     android:layout_height="wrap_content"  
     android:text="Close Me" />  
 </LinearLayout>  

Notification code:

 RemoteViews remoteViews = new RemoteViews(getPackageName(),  
                     R.layout.widget);  
           NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(  
                     this).setSmallIcon(R.drawable.ic_launcher).setContent(  
                     remoteViews);  
           // Creates an explicit intent for an Activity in your app  
           Intent resultIntent = new Intent(this, test.class);  
           // The stack builder object will contain an artificial back stack for  
           // the  
           // started Activity.  
           // This ensures that navigating backward from the Activity leads out of  
           // your application to the Home screen.  
           TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);  
           // Adds the back stack for the Intent (but not the Intent itself)  
           stackBuilder.addParentStack(test.class);  
           // Adds the Intent that starts the Activity to the top of the stack  
           stackBuilder.addNextIntent(resultIntent);  
           PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0,  
                     PendingIntent.FLAG_UPDATE_CURRENT);  
           remoteViews.setOnClickPendingIntent(R.id.button1, resultPendingIntent);  
           NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);  
           // mId allows you to update the notification later on.  
           mNotificationManager.notify(100, mBuilder.build());  

Displaying Progress in a Notification

 mNotifyManager = (NotificationManager) getApplicationContext()  
                     .getSystemService(Context.NOTIFICATION_SERVICE);  
           mBuilder = new NotificationCompat.Builder(this);  
           mBuilder.setContentTitle("Picture Download")  
                     .setContentText("Download in progress")  
                     .setSmallIcon(R.drawable.ic_launcher);  
           // Start a lengthy operation in a background thread  
           new Thread(new Runnable() {  
                @Override  
                public void run() {  
                     int incr;  
                     // Do the "lengthy" operation 20 times  
                     for (incr = 0; incr <= 100; incr += 5) {  
                          // Sets the progress indicator to a max value, the  
                          // current completion percentage, and "determinate"  
                          // state  
                          mBuilder.setProgress(100, incr, false);  
                          // Displays the progress bar for the first time.  
                          mNotifyManager.notify(0, mBuilder.build());  
                          // Sleeps the thread, simulating an operation  
                          // that takes time  
                          try {  
                               // Sleep for 5 seconds  
                               Thread.sleep(5 * 1000);  
                          } catch (InterruptedException e) {  
                               Log.e("error-->", "sleep failure");  
                          }  
                     }  
                     // When the loop is finished, updates the notification  
                     mBuilder.setContentText("Download complete")  
                     // Removes the progress bar  
                               .setProgress(0, 0, false);  
                     mNotifyManager.notify(ID, mBuilder.build());  
                }  
           }  
           // Starts the thread by calling the run() method in its Runnable  
           ).start();