GridLayout 面板上的面板

Question

是否可以在具有GridLayout 个图像的面板上显示一个面板（例如几乎透明的面板 A）？

JPanel mainPanel = new JPanel(new BorderLayout());

JPanel gridOfImages = new JPanel(new GridLayout(3,3));//Panel with a grid of images
JPanel nearlyOpaquePanel = new JPanel(); //A panel that is almost transparent.

// assuming that all already have the required properties like size and colour.

mainPanel.add(gridOfImages,Borderlayout.CENTER);
mainPanel.add(nearlyOpaquePanel,BorderLayout.CENTER);

我对这个想法的想法是面板将堆叠在一起，gridOfImages 将通过nearlyOpaquePanel 显示，但我的结果是我只有nearlyOpaquePanel 显示，我看不到gridOfImages通过它。

Answer 1

见How to Decorate Components with the JLayer Class