嗨,我上面有一个JTabbedPane。我想在“选择标签”选项卡后面删除或更改背景颜色。我已经搜索了很长时间,但找不到任何信息
答案 0 :(得分:0)
标签后面是......外部容器。在外部容器上使用setBackground(Color)方法。 见下面的代码。
import javax.swing.*;
import java.awt.*;
public class TabbedPaneTabColor extends JPanel {
public TabbedPaneTabColor() {
initializeUI();
}
private void initializeUI() {
this.setLayout(new BorderLayout());
this.setPreferredSize(new Dimension(400, 200));
JTabbedPane pane = new JTabbedPane();
setBackground(Color.BLACK);// This line sets the JPANEL(container) color to black
pane.addTab("A Tab", new JPanel());
pane.addTab("B Tab", new JPanel());
pane.addTab("C Tab", new JPanel());
pane.addTab("D Tab", new JPanel());
pane.setForeground(Color.BLACK);
pane.setBackgroundAt(0, Color.RED);
pane.setBackgroundAt(1, Color.GREEN);
pane.setBackgroundAt(2, Color.YELLOW);
pane.setBackgroundAt(3, Color.ORANGE);
this.add(pane, BorderLayout.CENTER);
}
public static void showFrame() {
JPanel panel = new TabbedPaneTabColor();
panel.setOpaque(true);
JFrame frame = new JFrame("JTabbedPane Demo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setContentPane(panel);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
TabbedPaneTabColor.showFrame();
}
});
}
}