Create a Notification on the Icon of the application

I want to create a red notification circle on the icon of the application when I receive something. Like in BBM, when a message is recei开发者_C百科ved, a red circle appears on the icon of the BBM. I want to do the same.

How to do that? Thanks in advance

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Probably, you are going to implement push notification or will call a method that checks the relevant service. After this implementation, you can use the net.rim.blackberry.api.homescreen class like below;

Bitmap icon = Bitmap.getBitmapResource("newiconwithstar.png");
net.rim.blackberry.api.homescreen.HomeScreen.updateIcon(icon);