java - GridLayout 面板上的面板

Question

是否可以在具有 GridLayout 图像的面板上显示面板(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，并且 gridOfImages 将通过 nearlyOpaquePanel 显示，但我的结果是我只得到 nearlyOpaquePanel 显示，但我无法通过它看到 gridOfImages。

Answer 1

参见How to Decorate Components with the JLayer Class