Switch Image of a Handler in a e4 rcp

问题

I have an e4 rcp application and I want to extend my application with a toolbar item that should change the icon URL when the user execute it.

Is there any possibility to do this as I can do it in a MPart?

回答1:

Just call the setIconURI method of MToolItem in your handler for the tool item:

@Execute
public void execute(MToolItem mitem)
{
  mitem.setIconURI("platform:/plugin/......");

  ... other code
}

来源：https://stackoverflow.com/questions/46191767/switch-image-of-a-handler-in-a-e4-rcp