这是一个 question and several answers与闪烁组件有关。
附件:您可以在文章How to Use Buttons中了解更多。特别是,您可以使用setForeground()
更改按钮文本的颜色,但在某些平台上相应的setBackground()
不能很好地阅读。使用Border
是一种选择;下面显示的彩色面板是另一个面板。
package overflow;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;
public class ButtonTest extends JPanel implements ActionListener {
private static final int N = 4;
private static final Random rnd = new Random();
private final Timer timer = new Timer(1000, this);
private final List<ButtonPanel> panels = new ArrayList<ButtonPanel>();
public ButtonTest() {
this.setLayout(new GridLayout(N, N, N, N));
for (int i = 0; i < N * N; i++) {
ButtonPanel bp = new ButtonPanel(i);
panels.add(bp);
this.add(bp);
}
}
@Override
public void actionPerformed(ActionEvent e) {
for (JPanel p : panels) {
p.setBackground(new Color(rnd.nextInt()));
}
}
private static class ButtonPanel extends JPanel {
public ButtonPanel(int i) {
this.setBackground(new Color(rnd.nextInt()));
this.add(new JButton("Button " + String.valueOf(i)));
}
}
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
JFrame f = new JFrame("ButtonTest");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
ButtonTest bt = new ButtonTest();
f.add(bt);
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
bt.timer.start();
}
});
}
}
使用'setOpaque(真)'上的按钮也是有效的,如图[这里](http://stackoverflow.com/a/9852024/230513)。 – trashgod 2012-03-24 14:37:37
我从来没有意识到Swing可以那么漂亮 – 2013-10-30 22:26:29
@TimothyLeung:归功于Java 2D和Aqua/Quartz;另见'Color.getHSBColor()',见[这里](http://stackoverflow.com/a/9875534/230513)。 – trashgod 2013-10-30 23:04:50