The chart menu can be modified dynamically via the chart settings. As the chart menu items may change, a new menu is created is time, the chart settings are applied. But the user might need a feedback if the menu was activated or deactivated. Hence, a menu listener shall be set to react on the changes.
The chart menu can be modified dynamically via the chart settings. As the chart menu items may change, a new menu is created is time, the chart settings are applied. But the user might need a feedback if the menu was activated or deactivated. Hence, a menu listener shall be set to react on the changes.