如何将图像添加到JTable单元格？

Question

I have a JTable that was created in Netbeans's design mode. In my code, I opted for placing the following line of code on startup:

model = new TableModel();
tbShares.setAutoCreateColumnsFromModel(false);
tbShares.setModel(model);

tbShares is my JTable object.

The JFrame that contains my JTable is shown below:

The first column was set as an Object type (the other two are Strings), so it can show an image. I have this code that I typed up for it to load an image, but it's not working (the list.add part, the rest is to give you an insight on how my code is structured). This is the extension of an AbstractTableModel .

public void addRegister(String status, String name, String clients){
        ImageIcon activeStatus = new ImageIcon(CleanSheets.class.getResource("res/img/active.png"));
        ImageIcon inactiveStatus = new ImageIcon(CleanSheets.class.getResource("res/img/inactive.png"));
        list.add(new Register((status.equals("true") ? activeStatus : inactiveStatus), name, clients));
        this.fireTableDataChanged();
    }

    class Register{
        Object status;
        String name;
        String clients;

        public Register(Object status, String name, String clients) {
            this.status = status;
            this.name = name;
            this.clients = clients;
        }
    }

Supposedly, it grabs the images from the folder I indicated, but then it's just outputting text in that column instead of the actual image. How do I get it to show the correct image? Thank you.

Answer 1

您应该重新实现TableCellRenderer尝试阅读此简短文章

Answer 2

ImageIcon activeStatus = new ImageIcon(CleanSheets.class.getResource("res/img/active.png")); ImageIcon inactiveStatus = new ImageIcon(CleanSheets.class.getResource("res/img/inactive.png"));

• prepare Icon/ImageIcon as local variable, because Renderer recreating these Objects on each of Mouse or Key events , there are a bunch events in crazy period

this.fireTableDataChanged();

• is correct notifier for add / remove whole JTable contens, for TableCell there are fireTableCellXxx()

• in this context is (add only one row to the TableModel ) about fireTableRowsInserted()

How do I get it to show the correct image?

• as I see there you add a new row with, then add Icon / ImageIcon to the TableModel directly, no more conversion, declare required, no issue, JTable has implemented Icon / ImageIcon in the API

• don't use Renderer if Icon / ImageIcon aren't changed form Mouse or Key events