The indicator plugin implementation, currently avaliable for Symbian/Nokia Belle only, written in Symbian C++.
The purpose of this plugin is to provide easy and open-source API that provides Symbian's notification features.

• Implement indicator icons and various images formats support
• Implement icon sending and resizing
• Qt utility methods
• Java JNI methods
• Application launch on indicator tap
• Implement tap handling/callbacking for indicators for native
• Implement tap handling/callbacking for indicators for Java
• Do not open app on tap option
• Javadoc, API docs, building guides
• Automatic package creation and installation with java library
• Reboot phone automatically after package install and uninstall
• Placeholder icon for notifications without icon
• Notification permissions management
• Discreet popup show feature
• System vibration function
• Show indicators on lock screen

You will need Carbide.c++ v2.7, Qt SDK and Belle SDK for QT SDK
Links: Carbide, Qt SDK and Belle SDK or Symbian Development

Note: This guide does not show how to build java-library and java-tester

Open Preferences

Go to SDK Preferences, add new SDK

Specify the path of Belle SDK, fill in the fields as shown here

Then go to Qt, add Qt version and make it default

Open context menu in Project Explorer, select "Import"

Import plugin & sym-library as Symbian OS Bld.inf file

Import qt-library & qt-tester as Qt Project

Select project and its build configuration, then build