Develop Reference

Clearing Notifications

I am making a chat application, I have requirement when the User is logged out of the application, then all the notifications of my application should be removed from the notification bar.
Is it possible??
Thanks

I believe this would do the trick:
http://developer.android.com/reference/android/app/NotificationManager.html#cancelAll()
Or you can cancel them by ID also:
http://developer.android.com/reference/android/app/NotificationManager.html#cancel(int)

Yes, use NotificationManager.cancelAll()
http://developer.android.com/reference/android/app/NotificationManager.html#cancelAll()

Yes,Take a look here:
Remove the notification icon from the status bar
You only need to provide your notification id; to remove only the notifications of your aplication.
When the user logged out or the activity goes to onPause() or onStop() (Depends of your necessity) you use:
public void cancel (String tag, int id)
Cancel a previously shown notification. If it's transient, the view will be hidden. If it's persistent, it will be removed from the status bar.

Switching Android notification from FLAG_ONGOING_EVENT to cancelable

I have an ongoing task and after it finishes, I want the notification to become cancelable.
For that, I create a new notification with notification.flags as zero, but the notification keeps being un-cancelable.

Apparently, FLAG_FOREGROUND_SERVICE prevented the notification from turning into cancelable, even after reseting the flags.
After removing FLAG_FOREGROUND_SERVICE and using only 0 or FLAG_ONGOING_EVENT, the notification could be made cancelable or un-cancelable - respectively.

Please take a look here : Android update notification
In short what you will do is this:
Create your notification first time and assign a notification ID to it.
Once your service is done executing create a new cancelable notification with the same id
fire that notification, it should make the previous notification cancelable .

IconLevel and startForeground

I would like to animate the icon of the app without having to cancel the notification and create a new one (because in this way the icon doesn't stay in the same position of the notification bar but could move to first place if there are other notification running).
I'm able to get this with normal notification, but I would like to get the same behaviour when I use startForeground in my service. This method launches a new notification which can't be removed unless you remove service from foreground using stopForeground.
Is this possible to do? How?

Use the same notification ID for the startForeground method and the Notification object.

Make a notification dessapear from Status Bar

I was able to send a notification to the Android emulator. When I click on it, the activity opens. But the notification alone remains in status bar. Normally, when you get sms/notifications and click on them, you go to the particular activity and when you expand the status bar, you don't see the notifications, on which you have already clicked.
So, my question is - how can I make the notification dissapear after clicking on it? Is there a special function for this? Thanks.

Add Notification.FLAG_AUTO_CANCEL to the notification when you create it.

To clear the status bar notification when the user selects it from the Notifications window, add the "FLAG_AUTO_CANCEL" flag to your Notification object. You can also clear it manually with cancel(int), passing it the notification ID, or clear all your Notifications with cancelAll().
Reference - http://developer.android.com/guide/topics/ui/notifiers/notifications.html

Status bar Notification in android

I want to set a onClickListner for a status bar Notification. How it is possible ? Please help. Now i can load a Activity by using the pending intent. I like to set a onClickListner for the notificatioin.
Regards
Parvathi

It is not possible to set an OnClickListener for a notification. Because of the way notifications are handled/displayed there is no way to guarantee that the process that created the notification will be running at the time the notification is clicked. This means that any code you wrote to provide click handling may not be running.
If you need click listener style behavior you will have to do it using the PendingIntent: set it to start a Service that runs the logic or to use an Intent that is received by a BroadcastReceiver. This will let you perform activity without requiring a UI.