我知道这个问题之前已经得到了回答,但这对我不起作用。我按照这里的说明进行操作:How to change JProgressBar color?
import javax.swing.*;
import java.awt.*;
public class ProgressBarTest extends JFrame {
public static void main(String args[]) {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
UIManager.put("ProgressBar.background", Color.orange);
UIManager.put("ProgressBar.foreground", Color.black);
UIManager.put("ProgressBar.selectionBackground", Color.red);
UIManager.put("ProgressBar.selectionForeground", Color.green);
JProgressBar progressBar = new JProgressBar(0,100);
progressBar.setValue(50);
f.add(progressBar, BorderLayout.PAGE_END);
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
}
}
我得到的只是旧颜色。
我正在使用Mac OS X 10.7.3和Java 1.6。我尝试了CrossPlatformLookAndFeel
,它适用于新颜色。但是我希望在默认外观中使用它。我怎么能这样做?
答案 0 :(得分:4)
覆盖Look&感觉默认,在event dispatch thread上构建GUI之前进行更改,如下所示。
在com.apple.laf.AquaLookAndFeel
上,进度条的UI委托是com.apple.laf.AquaProgressBarUI
的实例。正如您所发现的,它忽略了许多默认值,而不是原生组件。如果需要新颖的配色方案,请考虑提供您自己的UI代理,如here所示。
AquaProgressBarUI
:
CustomProgressUI:
ProgressBar UI默认值:
ProgressBar.background: com.apple.laf.AquaNativeResources$CColorPaintUIResource[r=238,g=238,b=238] ProgressBar.border: javax.swing.plaf.BorderUIResource@47f08ed8 ProgressBar.cellLength: 1 ProgressBar.cellSpacing: 0 ProgressBar.cycleTime: 3000 ProgressBar.font: sun.swing.SwingLazyValue@6446d228 ProgressBar.foreground: javax.swing.plaf.ColorUIResource[r=0,g=0,b=0] ProgressBar.horizontalSize: javax.swing.plaf.DimensionUIResource[width=146,height=12] ProgressBar.repaintInterval: 20 ProgressBar.selectionBackground: javax.swing.plaf.ColorUIResource[r=255,g=255,b=255] ProgressBar.selectionForeground: javax.swing.plaf.ColorUIResource[r=0,g=0,b=0] ProgressBar.verticalSize: javax.swing.plaf.DimensionUIResource[width=12,height=146] ProgressBarUI: com.apple.laf.AquaProgressBarUI
SSCCE:
import java.awt.*;
import javax.swing.*;
public class ProgressBarTest extends JFrame {
public static void main(String args[]) {
UIManager.put("ProgressBar.repaintInterval", 100);
UIManager.put("ProgressBar.border",
BorderFactory.createLineBorder(Color.blue, 2));
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
JFrame f = new JFrame();
f.setLayout(new GridLayout(0, 1, 5 , 5));
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.add(createBar());
f.add(createBar());
f.add(createBar());
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
}
private JProgressBar createBar() {
JProgressBar progressBar = new JProgressBar(0, 100);
progressBar.setValue(50);
return progressBar;
}
});
}
}