Java UIManager只更改一次颜色(Nimbus)
请参阅此错误: 我在JFrame上有两个按钮。从第一个按钮开始,我通过Java UIManager只更改一次颜色(Nimbus),java,swing,colors,nimbus,uimanager,Java,Swing,Colors,Nimbus,Uimanager,请参阅此错误: 我在JFrame上有两个按钮。从第一个按钮开始,我通过 UIManager.put( "Button.background", new ColorUIResource(Color.red) ); SwingUtilities.updateComponentTreeUI( this.getContentPane() ); 在第二个按钮上,我用 UIManager.put( "Button.background", new ColorUIResource(Color.green)
UIManager.put( "Button.background", new ColorUIResource(Color.red) );
SwingUtilities.updateComponentTreeUI( this.getContentPane() );
在第二个按钮上,我用
UIManager.put( "Button.background", new ColorUIResource(Color.green) );
SwingUtilities.updateComponentTreeUI( this.getContentPane() );
在这里,我使用的是ColorUIResource(如错误解决方案所述),但我的问题仍然与引用的错误中所述的相同。i、 e.UIManager在第一次单击任何按钮时更改颜色,但在后续单击时不更改颜色
我错过什么了吗?任何帮助都将不胜感激。- 不可能直接改变这种方式
- 重置当前的Nimbus配色方案(
)可能会导致UIManager.getLookAndFeel().uninitialize();
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Random;
import javax.swing.JFrame;
import javax.swing.LookAndFeel;
import javax.swing.SwingUtilities;
import javax.swing.Timer;
import javax.swing.UIDefaults;
import javax.swing.UIManager;
import javax.swing.UIManager.LookAndFeelInfo;
import javax.swing.UnsupportedLookAndFeelException;
public class NimbusTestButtonsBackground extends JFrame {
private static final long serialVersionUID = 1L;
private javax.swing.JButton button;
public NimbusTestButtonsBackground() {
button = new javax.swing.JButton();
button.setText("Text");
add(button);
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
this.pack();
Timer t = new Timer(1000, new ActionListener() {
private Random r = new Random();
@Override
public void actionPerformed(ActionEvent e) {
Color c = new Color(r.nextInt(256), r.nextInt(256), r.nextInt(256));
try {
LookAndFeel lnf = UIManager.getLookAndFeel().getClass().newInstance();
UIDefaults uiDefaults = lnf.getDefaults();
uiDefaults.put("nimbusBase", c);
UIManager.getLookAndFeel().uninitialize();
UIManager.setLookAndFeel(lnf);
} catch (InstantiationException ex) {
} catch (IllegalAccessException ex) {
} catch (UnsupportedLookAndFeelException ex) {
}
UIDefaults defaults = UIManager.getDefaults();
defaults.put("Button.background", c);
SwingUtilities.updateComponentTreeUI(button);
}
});
t.start();
}
public static void main(String args[]) {
try {
for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (Exception e) {
return;
}
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
new NimbusTestButtonsBackground().setVisible(true);
}
});
}
}