Develop Reference

Tapping one notifiaction, removing all notifications

I am working on project where we are showing notifications for each photo album updates. But on tap of one notification, it is removing all notifications from the notification bar.
I tried the following code:
private void handleNotification(NotificationModel notificationModel) {
// display the notification in the notification bar
int i=0;
if(!TextUtils.isEmpty(notificationModel.getAlbum_id()))
i=Integer.parseInt(notificationModel.getAlbum_id());
NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
//icon appears in device notification bar and right hand corner of notification
builder.setSmallIcon(R.mipmap.ic_launcher);
Intent intent=new Intent(this,MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
intent.putExtra(MainActivity.BUNDLE_ALBUM_ID_KEY, notificationModel.getAlbum_id());
intent.putExtra(MainActivity.BUNDLE_ALBUM_NAME_KEY, notificationModel.getAlbum_title());
/*intent = new Intent(this, NotificationActivity.class);*/
PendingIntent pendingIntent = PendingIntent.getActivity(getApplicationContext(),i,intent,PendingIntent.FLAG_UPDATE_CURRENT);
// Set the intent that will fire when the user taps the notification.
builder.setContentIntent(pendingIntent);
/*builder.setAutoCancel(true);*/
// Large icon appears on the left of the notification
builder.setLargeIcon(BitmapFactory.decodeResource(getApplicationContext().getResources(), R.mipmap.ic_launcher));
// Content title, which appears in large type at the top of the notification
builder.setContentTitle(notificationModel.getTitle());
builder.setContentText(notificationModel.getMessage());
builder.setAutoCancel(true);
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
Notification notification=builder.build();
notification.defaults = Notification.DEFAULT_SOUND
| Notification.DEFAULT_VIBRATE;
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notificationManager.notify(i,notification);
}
What am I doing wrong?

Please check value of "i" that is working as notification id remain same each time that might be problem ...
Here
int i=0;
if(!TextUtils.isEmpty(notificationModel.getAlbum_id()))
i=Integer.parseInt(notificationModel.getAlbum_id());
Please check value of "i", I think its always same in your case that you are using with below code
PendingIntent pendingIntent = PendingIntent.getActivity(getApplicationContext(),**i**,intent,PendingIntent.FLAG_UPDATE_CURRENT);
And
notificationManager.notify(i,notification);

Android: Manage multiple push notification in device of an app

I am developing an application in which i implemented Push notification functionality.
My code of onMessage - GCMIntentService.java is:
#Override
protected void onMessage(Context context, Intent data) {
String message = data.getExtras().getString("message");
displayMessage(context, message);
generateNotification(context, message);
}
And code of generateNotification -
private static void generateNotification(Context context, String message) {
int icon = R.drawable.ic_launcher;
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, message, when);
String title = context.getString(R.string.app_name);
Intent notificationIntent = new Intent(context, GCMMessageView.class);
notificationIntent.putExtra("message", message);
// set intent so it does not start a new activity
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent = PendingIntent.getActivity(context, 0,notificationIntent, 0);
notification.setLatestEventInfo(context, title, message, intent);
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(0, notification);
}
This code is working fine. I am getting push message and notification.
=>But when i send more then one message the notification gets over write. And i am able to see only last notification in status bar.
The need of application is that - if i send more then one notification then all should be display in status bar.
So please guide me what should i do for that in my code.

Try to put different notification id (i.e. nid) in intent and notify instead of 0 for each new notification this will prevent over writing your notification
PendingIntent intent = PendingIntent.getActivity(context, nid,notificationIntent, 0);
and
notificationManager.notify(nid, notification);
Hope this will help you

Get random numbers:
Random random = new Random();
int m = random.nextInt(9999 - 1000) + 1000;
Instead of:
notificationManager.notify(0, notification);
use:
notificationManager.notify(m, notification);

You need to update your Notification ID when you fire a Notification. in
notificationManager.notify(ID, notification);
How?
To set up a notification so it can be different, issue it with a notification ID by calling NotificationManager.notify(ID, notification). To change this notification once you've issued it, create a NotificationCompat.Builder object, build a Notification object from it, and issue the Notification with the Different ID you are not used previously.
If the previous notification is still visible, the system updates it from the contents of the Notification object. If the previous notification has been dismissed, a new notification is created instead.
For more information go to official docs

hello you need to pass unique notification id in notify method.
Below is the code for pass unique notification id:
//"CommonUtilities.getValudeFromOreference" is the method created by me to get value from savedPreferences.
String notificationId = CommonUtilities.getValueFromPreference(context, Global.NOTIFICATION_ID, "0");
int notificationIdinInt = Integer.parseInt(notificationId);
notificationManager.notify(notificationIdinInt, notification);
// will increment notification id for uniqueness
notificationIdinInt = notificationIdinInt + 1;
CommonUtilities.saveValueToPreference(context, Global.NOTIFICATION_ID, notificationIdinInt + "");
//Above "CommonUtilities.saveValueToPreference" is the method created by me to save new value in savePreferences.
Let me know if you need more detail information or any query. :)

notificationManager.notify(Different_id_everytime, notification);

How to open same activity after clicked difference notifications

i spend a lot of time to resolve my problem. i have written a messenger client in android. my application receive income message and raise a notification. in notification bar i display each income message in a notification item. when click to notification item it will open a conversation activity to list all messages from the beginning until now. everything dose perfect but when i click another item in notification bar, nothing happen! (it must reload data for another conversation). This is my code to raise a notification:
private void showNotification(String message, Class activity, Message messageObject) {
//Get the Notification Service
NotificationManager notificationManager = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);
CharSequence text = message;//getText(R.string.service_started);
Notification notification = new Notification(R.drawable.ic_launcher, text, System.currentTimeMillis());
notification.flags |= Notification.FLAG_AUTO_CANCEL;
Intent callbackIntent = new Intent(context, activity);
if(messageObject != null)
{
callbackIntent.putExtra("conversation", MessageManager.getProvider().getConversation(messageObject.getConversationId()));
}
//callbackIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
int myUniqueValue = new Random().nextInt();
PendingIntent contentIntent = PendingIntent.getActivity(context, myUniqueValue, callbackIntent, PendingIntent.FLAG_ONE_SHOT);
notification.setLatestEventInfo(context, messageObject.getFrom(), text, contentIntent);
notificationManager.notify(messageObject.getFrom(), myUniqueValue, notification);
}
This is code block to call showNotification function
showNotification(message.getBody(), ConversationActivity.class, messageObject);

Despite your efforts to supply a unique value, those PendingIntents are all treated as the same by the system, so once you click one, the rest are rendered inert.
You'll need to add something distinguishing to callbackIntent; I suggest inventing a data URI that includes the conversation ID or something else that's guaranteed to be different for each notification (see setData).
Finally, I'd encourage you to try to collapse multiple notifications into one icon—you don't want to spam the user. See the Notifications section in the Android Design guide, under "Stack your notifications".

i changed my code and it work very well
private void showNotification(Context context, CharSequence contentTitle, CharSequence contentText, CharSequence notificationContent, Class activity, Conversation conversation) {
//Get the Notification Service
NotificationManager notificationManager = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(R.drawable.ic_launcher, notificationContent, System.currentTimeMillis());
notification.flags |= Notification.FLAG_AUTO_CANCEL;
Intent callbackIntent = new Intent(context, activity);
if(conversation != null)
{
callbackIntent.putExtra("conversation", conversation);
}
callbackIntent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
int myUniqueValue = new Random().nextInt();
PendingIntent contentIntent = PendingIntent.getActivity(context, myUniqueValue, callbackIntent, PendingIntent.FLAG_ONE_SHOT);
notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
notificationManager.notify(myUniqueValue, notification);
}

Android Show Notification only when Message arrives

In Android, I have implemented Google Cloud Notification, which notifies when any message arrives, but it stays even when message is there, it shows icon in notification bar immediatly after installing application, is there any way to only show the notification when message arrives and hide it once the user clicks on it ??
Here is my code :
private static void generateNotification(Context context, String message) {
int icon = R.drawable.ic_launcher;
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, message, when);
String title = context.getString(R.string.app_name);
//Intent notificationIntent = new Intent(context, MainActivity.class); //Open Activity
// set intent so it does not start a new activity
Intent notificationIntent = new Intent(Intent.ACTION_VIEW);
notificationIntent.setData(Uri.parse("http://www.google.com")); //Open Link
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent =
PendingIntent.getActivity(context, 0, notificationIntent, 0);
notification.setLatestEventInfo(context, title, message, intent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
// Play default notification sound
notification.defaults |= Notification.DEFAULT_SOUND;
//notification.sound = Uri.parse("android.resource://" + context.getPackageName() + "your_sound_file_name.mp3");
// Vibrate if vibrate is enabled
notification.defaults |= Notification.DEFAULT_VIBRATE;
notificationManager.notify(0, notification);
}

Without seeing where you are receiving messages and where you want to generate and cancel Notifications, it is very difficult to discern what you need to do to implement this, but I will give it a shot.
If you load the sample project for an Android Connected App Engine project (via GCM), you will notice that GCM data is received in a GCMBaseIntentService.
This class has a method you can override called onMessage() that will be called whenever you receive a GCM message. If you create the notification in this method, then your application will only generate a notification when a GCM message is received.
As for cancelling notifications- you can do so by calling the NotificationManager's cancel() method, passing the ID of the notification you want to cancel. Presumably you have some sort of Activity that displays messages to the user, and this would be a good place to cancel any outstanding Notifications relating to a specific message.

when to clear notification count of status notification in android

I have a method for creating notification. I want to clear notification number as soon as a user clicks on status notification.
public void createNotification(){
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
Notification notification=null;
notification = new Notification(R.drawable.ic_launcher, "You have a new message", System.currentTimeMillis());
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notification.number = **count**++;
Intent intent = new Intent();
intent.setClass(TabInterfaceActivity.this, TabInterfaceActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent activity = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
notification.contentIntent = activity;
notification.setLatestEventInfo(this, " New Message", message, notification.contentIntent);
}

If by "I want to clear notification number" you mean you want to keep the notification itself still displayed, but you want just to update/remove counter, then you should set your notification PendingIntent to point to your code that would handle this scenario for you, and when it completes it shall redirect to your target TabInterfaceActivity (or you can make it more flexible and pass target in PendingIntent's Bundle).