java - JTextField中如何添加弹出组件

Question

我想像这样将组件作为弹出窗口添加到 JTextField 中。

alt text http://img502.imageshack.us/img502/3688/popupsample.png

我想添加我的组件，例如 JPanel...

Answer 1

您可以使用 JPopupMenu -- 通过您的按钮启动并相对于您的文本字段放置:

final JTextField textField = ...
JButton button = ...
button.addActionListener(new ActionListener() {
    @Override
    public void actionPerformed(ActionEvent e) {
        JPopupMenu popup = new JPopupMenu();
        popup.setLayout(new BorderLayout());
        popup.add(new JPanel()); // your component
        popup.setPopupSize(100, 100);
        popup.show(textField, 0, textField.getHeight());
    }
});