如何在 Java 组合框中居中项目
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How to center items in a Java combobox
提问by AndroidDev
Is there a method for a combobox in Java that will center the items in the combobox? I tried this but it didn't work:
Java中的组合框是否有一种方法可以将组合框中的项目居中？我试过这个，但没有用：
myCombobox.setAlignmentY(CENTER_ALIGNMENT);
Thanks!
谢谢！
回答by aterai
Try this link: How to Use Combo Boxes (The Java? Tutorials > Creating a GUI With JFC/Swing > Using Swing Components)
试试这个链接：如何使用组合框（Java？教程 > 使用 JFC/Swing 创建 GUI > 使用 Swing 组件）
class ComboBoxRenderer extends JLabel
implements ListCellRenderer {
public ComboBoxRenderer() {
setOpaque(true);
setHorizontalAlignment(CENTER);
setVerticalAlignment(CENTER);
}
//. . .
or
或者
((JLabel)comboBox.getRenderer()).setHorizontalAlignment(SwingConstants.CENTER);
回答by mKorbel
You have look at Renderersconcept, described about in the JTable tutorial on Oracles pages, thic concept is similair for JComboBox, JList, JTableand JTree, in the Rendereryou can centering desired text
你必须看看Renderers概念，大约在描述上的神谕页JTable的教程，THIC概念similair为JComboBox，JList，JTable和JTree，在Renderer可以定心所需的文本
