shemnon
commented
13 years ago Github is no JIRA. I assumed it would post my comment when I closed it. Instead it looked like I posted it but it actually ate it. Bad UI... Bad UI!
Anyway, the issue is the timing of setting the look and feel. You need to set it prior to creating any JComponent, and certianly not inside the constructor for a JFrame. The super constructor creates some features of JFrame that are ultimately dependent on the look and feel, and changing things mid-flight is not something the code is expecting to happen.
By moving the look and feel configuration to the main method I was able to make things work. Here's what worked for me.
package de.gianfelice.debarim.gui;
import java.awt.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.*;
import org.pushingpixels.substance.api.skin.SubstanceGraphiteLookAndFeel;
public class SampleApp extends JFrame {
public SampleApp() {
super("Sample app");
try {
this.setLayout(new FlowLayout());
this.add(new JButton("button"));
this.add(new JCheckBox("check"));
this.add(new JLabel("label"));
this.setSize(new Dimension(250, 80));
this.setLocationRelativeTo(null);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(new SubstanceGraphiteLookAndFeel());
} catch (UnsupportedLookAndFeelException ex) {
Logger.getLogger(SampleApp.class.getName()).log(Level.SEVERE, null, ex);
}
JFrame.setDefaultLookAndFeelDecorated(true);
SampleApp s = new SampleApp();
s.setVisible(true);
}
});
}
}
disrvptor
MatthiasGi
I've got this sample-code:
But everytime I try to run this code, I get a NullPointerException:
java.lang.NullPointerException at org.pushingpixels.substance.internal.ui.SubstanceButtonUI.__org__pushingpixels__substance__internal__ui__SubstanceButtonUI__installDefaults(SubstanceButtonUI.java:169) at org.pushingpixels.substance.internal.ui.SubstanceButtonUI.installDefaults(SubstanceButtonUI.java) at javax.swing.plaf.basic.BasicButtonUI.installUI(BasicButtonUI.java:71) at org.pushingpixels.substance.internal.ui.SubstanceButtonUI.__org__pushingpixels__substance__internal__ui__SubstanceButtonUI__installUI(SubstanceButtonUI.java) at org.pushingpixels.substance.internal.ui.SubstanceButtonUI.installUI(SubstanceButtonUI.java) at javax.swing.JComponent.setUI(JComponent.java:662) at javax.swing.AbstractButton.setUI(AbstractButton.java:1782) at javax.swing.JButton.updateUI(JButton.java:128) at javax.swing.AbstractButton.init(AbstractButton.java:2149) at javax.swing.JButton.(JButton.java:118)
at javax.swing.JButton.(JButton.java:91)
at de.gianfelice.debarim.gui.SampleApp.(SampleApp.java:21)
at de.gianfelice.debarim.gui.SampleApp$1.run(SampleApp.java:39)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:641)
at java.awt.EventQueue.access$000(EventQueue.java:84)
at java.awt.EventQueue$1.run(EventQueue.java:602)
at java.awt.EventQueue$1.run(EventQueue.java:600)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:611)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Everything is running under NetBeans 7.0 and Windows 7 x64. I'm not using Maven to do this.
Maybe I'm only doing something wrong?
If I could provide any further information, please let me know.
Greetings from Germany, Matthias