如何实现一个真正的自定义事件处理程序,可以处理JavaFX中的任何EventType？

Question

我打算创建一个EventHandler类,它将处理我的JavaFX类中所有控件的所有类型的事件.

例如,我添加了我的自定义事件处理程序类,以下面的方式处理Action事件,它只是工作正常:

userNameText.addEventHandler(ActionEvent.ACTION, new DataChangeHandler());
cmbBox.addEventHandler(ActionEvent.ACTION, new DataChangeHandler());
btn.addEventHandler(ActionEvent.ACTION, new DataChangeHandler());

这是我的custome事件处理程序类代码:

public class DataChangeHandler implements EventHandler<ActionEvent> {    
    public void handle(ActionEvent event) {
            System.out.println("My Very Own Private Button Handler");
        }               
}

但是当我尝试将其中一个addEventHandler更改为MouseEvent并按以下方式修改主EventHandler类时,它会显示错误"接口事件处理程序不能使用不同的参数多次实现":

userNameText.addEventHandler(ActionEvent.ACTION, new DataChangeHandler());
cmbBox.addEventHandler(MouseEvent.CLICKED, new DataChangeHandler());
btn.addEventHandler(ActionEvent.ACTION, new DataChangeHandler());

public class DataChangeHandler implements EventHandler<ActionEvent>, EventHandler<MouseEvent> {    
    public void handle(ActionEvent event) {
            System.out.println("My Very Own Private Button Handler - ACTIONEVENT");
        }

        @Override
    public void handle(MouseEvent arg0) {
        System.out.println("My Very Own Private Button Handler - MOUSEEVENT");

    }
}

有没有其他方法来实现这一目标？请帮忙.提前致谢.

Answer 1

试试这个

public class DataChangeHandler implements EventHandler<Event>{
    @Override
    public void handle(Event event) {
        System.out.println("My Very Own Private Handler For All Kind Of Events");
    }
}