选择列表中的项目，在文本区域中显示文本 [英] Select item in list, show text in text area

问题描述

我正在研究gui的草稿，看看不同的选择。我正在跳使用 JList 根据 item 在 JTextArea 中显示文本被选中。您可以在左侧看到 JList ，在中心看到 JTextArea 。

I am working on a rough draft of a gui, looking at different options. I was hopping to use a JList to show text in a JTextArea based on what item is selected. You can see the JList on the left and the JTextArea in the center.

或者有更好的方法吗？我已经在使用将用于广泛类别的标签。我看到 CardLayout ，但不太喜欢这个样子。任何提示？

Or is there a better way to do this? I am already using tabs that will be used for a broad category. I saw that the CardLayout, but don't quite like the look. Any tips?

推荐答案

好吧，你可以使用ListSelectionListener相应地设置内容..

Well, you can use a ListSelectionListener to set the content accordingly..

 JList list = new JList(someArrayofData);
 list.addListSelectionListener(new ListSelectionListener(){
      public void valueChanged(ListSelectionEvent e){
            int selectedIndex = list.getSelectedIndex();
            //refresh the content based on the index
            setContent(selectedIndex);
      }
});

很难说哪种gui布局最适合你，而不知道应用程序的用途。

Its hard to say which gui layout will work the best for you without knowing what the application is for.

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