如何在Java Swing中创建带有复选框的列表? [英] How do I make a list with checkboxes in Java Swing?
问题描述
在Java Swing中有一个带有复选框的项目列表的最佳方法是什么?
What would be the best way to have a list of items with a checkbox each in Java Swing?
I.e。带有一些文本和每个复选框的项目的JList?
I.e. a JList with items that have some text and a checkbox each?
推荐答案
创建自定义 ListCellRenderer
并将其指定为 JList
。
Create a custom ListCellRenderer
and asign it to the JList
.
此自定义 ListCellRenderer
必须在 getListCellRendererComponent(...)
方法的实现中返回 JCheckbox
。
This custom ListCellRenderer
must return a JCheckbox
in the implementantion of getListCellRendererComponent(...)
method.
但是这个 JCheckbox
将无法编辑,屏幕上的简单画面由你来选择,当这个 JCheckbox
必须勾选或不勾选,
But this JCheckbox
will not be editable, is a simple paint in the screen is up to you to choose when this JCheckbox
must be 'ticked' or not,
例如,在选择行时显示勾选(参数 isSelected
),但这样一来,如果选择改变,检查状态将不会被保留。最好显示它检查 ListModel
下面的数据,但是由您来实现更改数据检查状态的方法,并通知更改为要重新绘制 JList
。
For example, show it ticked when the row is selected (parameter isSelected
), but this way the check status will no be mantained if the selection changes. Its better to show it checked consulting the data below the ListModel
, but then is up to you to implement the method who changes the check status of the data, and notify the change to the JList
to be repainted.
如果需要,我会稍后发布示例代码
I Will post sample code later if you need it
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