Develop Reference

Customize Android Notification layout and click of elements

I want to show image from Url in notification panel for that purpose I am trying to make custom UI with following code but its not working
int icon = R.drawable.ic_launcher;
long when = System.currentTimeMillis();
Notification notification = new Notification(icon, "Custom Notification", when);
NotificationManager mNotificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
RemoteViews contentView = new RemoteViews(getPackageName(), R.layout.custom_notification);
contentView.setImageViewResource(R.id.image, R.drawable.ic_launcher);
contentView.setTextViewText(R.id.title, "Custom notification");
contentView.setTextViewText(R.id.text, "This is a custom layout");
notification.contentView = contentView;
Intent notificationIntent = new Intent(this, MainActivity.class);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
notification.contentIntent = contentIntent;
notification.flags |= Notification.FLAG_NO_CLEAR; //Do not clear the notification
notification.defaults |= Notification.DEFAULT_LIGHTS; // LED
notification.defaults |= Notification.DEFAULT_VIBRATE; //Vibration
notification.defaults |= Notification.DEFAULT_SOUND; // Sound
mNotificationManager.notify(1, notification);
and how I can handle the click of each element like image TextView etc. I haven't found any stuff to handle click of each element.

Use remoteView.setOnClickPendingIntent(viewId, pendingIntent) to give click actions to views in your RemoteViews object. This will allow you to do things like start a Service or send a broadcast (to be received by a BroadcastReceiver).

How can I set delete intent to my code?

I've searched many times but I was not able to find what I actually needed,
There is something on stackoverflow like this and this
but I need to implement my code for api level 8 not 11. So how can I implement it in my code?
My code is here:
....
mNotification = new Notification(icon, tickerText, when);
//create the content which is shown in the notification pulldown
mContentTitle = mContext.getString(R.string.noti_comes_t_l); //Full title of the notification in the pull down
CharSequence contentText = "click to see notification"; //Text of the notification in the pull down
//you have to set a PendingIntent on a notification to tell the system what you want it to do when the notification is selected
//I don't want to use this here so I'm just creating a blank one
mContentIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext, notify.class), 0);
//add the additional content and intent to the notification
mNotification.setLatestEventInfo(mContext, mContentTitle, contentText, mContentIntent);
//make this notification appear in the 'Ongoing events' section
mNotification.flags = Notification.DEFAULT_LIGHTS | Notification.FLAG_AUTO_CANCEL ;
//show the notification
mNotificationManager.notify(NOTIFICATION_ID, mNotification);
....
How can I implement this?

I think you need NotificationCompat from the Support library, you can use this code to generate a notification, adapt it as you need
NotificationManager notificationManager = (NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(context)
.setSmallIcon(icon)
.setContentTitle(context.getString(R.string.app_name))
.setContentText(message)
.setDeleteIntent(PendingIntent);
mBuilder.setWhen(when);
Intent notificationIntent = new Intent(context, YOURCLASS.class);
notificationIntent.putExtra("url", url);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent = PendingIntent.getActivity(context, random, notificationIntent, PendingIntent.FLAG_ONE_SHOT);
mBuilder.setContentIntent(intent);
Notification notification = mBuilder.build();
notification.flags |= Notification.FLAG_AUTO_CANCEL;
// Play default notification sound
notification.defaults |= Notification.DEFAULT_SOUND;
// Vibrate if vibrate is enabled
notification.defaults |= Notification.DEFAULT_VIBRATE;
notificationManager.notify(random, notification);

To show many notifications on the status bar

In my program, just one notification shown. I want to show many notifications in the status bar. Here is my code.
NotificationManager nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
long when = System.currentTimeMillis(); // notification time
Notification notification = new Notification(R.drawable.ic_launcher, "reminder", when);
notification.defaults |= Notification.DEFAULT_SOUND;
notification.flags |= notification.FLAG_AUTO_CANCEL;
Intent notificationIntent = new Intent(this, Goo.class);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent , 0);
notification.setLatestEventInfo(getApplicationContext(), "It's about time", "You should open the app now", contentIntent);
nm.notify(NOTIF_ID, notification);

Notification inbox style

I wanted to create something like an instant messaging application. How do I display multiple messages all in one notification? I can create a notification that appear when user receive a single notification. But when the user receive more than one message how can I update the notification with the previous message? Should I save the messages into a database and display it out if the user did not cancel the notification? Or is there any other way that I can handle this?
Below is my notification code.
NotificationManager notificationManager = (NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, "IMTest- A new event is created" , when);
Intent notificationIntent = new Intent(context, IM_Chat.class);
notificationIntent.putExtra("topicId", topicId);
notificationIntent.putExtra("sender", sender);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent =
PendingIntent.getActivity(context, 1, notificationIntent, Intent.FLAG_ACTIVITY_MULTIPLE_TASK | PendingIntent.FLAG_CANCEL_CURRENT);
notification.setLatestEventInfo(context, topicName, "A new event ["+eventName+"] is added in "+topicName, intent);
notification.flags |= Notification.FLAG_AUTO_CANCEL | Notification.FLAG_SHOW_LIGHTS;
notification.defaults |= Notification.DEFAULT_SOUND;
notification.ledARGB |= 0xff0000ff;
notification.ledOffMS |= 1000;
notification.ledOnMS |= 300;
notificationManager.notify(CommunitiesappConstant.NOTIFICATION_ID, notification);

You can update notification using same id and builder
http://developer.android.com/guide/topics/ui/notifiers/notifications.html#Updating
private NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this);
private mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
//Different Id's will show up as different notifications
private int mNotificationId = 1;
//Some things we only have to set the first time.
private boolean firstTime = true;
private updateNotification(String message, int progress) {
if (firstTime) {
mBuilder.setSmallIcon(R.drawable.icon)
.setContentTitle("My Notification")
.setOnlyAlertOnce(true);
firstTime = false;
}
mBuilder.setContentText(message)
.setProgress(100, progress, true);
mNotificationManager.notify(mNotificationId, mBuilder.build());
}

Notification Sound Stops on Click

I use the following code to add the notification, and in the notification I add two features, one is Sound and other is flashing light.
String ns = Context.NOTIFICATION_SERVICE;
NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);
int icon = R.drawable.icon;
CharSequence tickerText = "Hello";
long when = System.currentTimeMillis();
Notification notification = new Notification(icon, tickerText, when);
RemoteViews contentView = new RemoteViews(getPackageName(), R.layout.cutomnotification);
contentView.setTextViewText(R.id.textView1,"Custom");
notification.contentView = contentView;
Intent notificationIntent = new Intent(v.getContext(), MyClass.class);
PendingIntent contentIntent = PendingIntent.getActivity(v.getContext(), 0, notificationIntent, 0);
notification.contentIntent = contentIntent;
notification.sound=android.provider.Settings.System.DEFAULT_RINGTONE_URI;
notification.ledARGB = 0xff00ff00;
notification.ledOnMS = 300;
notification.ledOffMS = 1000;
notification.flags=Notification.FLAG_INSISTENT|Notification.FLAG_SHOW_LIGHTS|Notification.FLAG_NO_CLEAR;
mNotificationManager.notify(HELLO_ID, notification);
In this I also use the custom layout,
Now I have two questions,
1) The sound plays and it stops when user clicks on notification tab,but I want to continue the sound until user press any button on custom layout.
2) I add a button in custom layout now i can implement onClickListener() on it.

Add this code after notification.contentIntent = contentIntent;
notification.flags |= Notification.FLAG_NO_CLEAR; //Do not clear the notification
notification.defaults |= Notification.DEFAULT_LIGHTS; // LED
notification.defaults |= Notification.DEFAULT_VIBRATE; //Vibration
notification.defaults |= Notification.DEFAULT_SOUND;

You can create the NotificationCompat.Builder object without using setSound(). This will create a notification without any sound.
notification = mBuilder
.setStyle(notiStyle)
.setSmallIcon(notificationIcon)
.setTicker(title)
.setWhen(0)
.setAutoCancel(true)
.setContentTitle(title)
.setContentIntent(resultPendingIntent)
.build();