Java Swing-在JPanel上动态显示多个图像

Question

I have searched many places to add and display images dynamically on JPanel but couldn't get proper help. Basically I have JPanel on which I have to display many images vertically but it should be dynamic.

for(int i=0;i<macthedImages.length;i++) {
    JLabel jLabel = new JLabel(new ImageIcon(macthedImages[i]));
    searchResultPanel.add(jLabel);
}

macthedImages is an array of bufferedImages searchResultPanel is JPanel

Answer 1

1) you have to set proper LayoutManager ,

2) for lots of Images in the JLabel would be GridLayout best options, in case that you want to see all images on one JPanel

3) use CardLayout , if you want to see each Image separatelly

4) maybe there no needed re-create

JLabel jLabel = new JLabel(new ImageIcon(macthedImages[i]));

only to set

jLabel[i].setIcon(macthedImages[i]);

5) maybe put JPanel to the JSCrollPane

6) if you add/remove JCOmponents on Runtime you have to call

revalidate();
repaint()// sometimes required

Answer 2

If you want to show all images at same time then use GridLayout but you have to consider rows and columns of grid layout.

GridLayout gl = new gridLayout(2,macthedImages.length/2);

Or if you want to show one image at a time then use CardLayout. Like this:

CardLayout cl = new CardLayout();
for(int i=0;i<macthedImages.length;i++){
        JLabel jLabel = new JLabel(new ImageIcon(macthedImages[i]));
        cl.add(jLabel, "jLabel"+i);
    }

In second option you can show any image by firing event. It provides many methods