java - 更改 Java Swing 组件焦点指示器的颜色

Question

我有一个带有 JButton、JTextField 和 JTable 的 JPanel，TAB 键按预期遍历这些组件，并在具有焦点的组件（或 JTable 的单元格）周围绘制了一个小黑框。如何更改黑盒焦点指示器的颜色？

Answer 1

The selection appearance is under the control of each component's UI delegate, discussed in How to Set the Look and Feel.

As a concrete example, on certain L&Fs, you can override the default value when your program starts up:

UIManager.put("Button.focus", Color.red);