问题描述
是否可以使用ListSelectionListener或MouseAdapter获取有关所选值的信息(例如,如果value是一个String),是否有任何内置方法?
Is there any way to use ListSelectionListener or MouseAdapter to get information about selected value (if value is a String for example), is there any built-in method for that?
我只知道如何获取正确的索引,但不知道content或content.toString()
I only know how to get proper indexes but not the content or content.toString()
我要添加这样的元素:
{
DefaultListModel listModel;
listModel.addElement(name);
}
@编辑
感谢您的帮助.我通过这样做解决了我的问题(对于子孙后代来说,他们将不需要像我一样进行搜索):
@Edit
Thank you for you for help.I solved my problem by doing this (for future generations so they wouldn't need to search as I did):
list.addMouseListener(new MouseAdapter(){
@Override
public void mouseClicked(MouseEvent e) {
System.out.println("Mouse click.");
int index = list.getSelectedIndex();
System.out.println("Index Selected: " + index);
String s = (String) list.getSelectedValue();
System.out.println("Value Selected: " + s.toString());
}
});
推荐答案
使用JList
时,您只需使用 JList#getSelectedValue(),它将返回当前选定的实际对象.
When using a JList
you can simply use JList#getSelectedValue() which will return the actual object that is current selected.
如果从MouseListener
内部执行此操作,最好使用 JList#locationToIndex
,然后使用JList
的索引获取值
If you are doing this from within a MouseListener
, it would be better to use JList#locationToIndex
and then get the value from the JList
using it's index
String value = (String)list.getModel().getElementAt(list.locationToIndex(e.getPoint()));
这篇关于JList-从Click获得价值的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!