Nie wiem, dlaczego ten błąd nadchodzi. Korzystam z GroupLayout, ponieważ chcę, aby robił dla mnie odstępy i będzie dodawał więcej paneli do ramki w przyszłości. Poniżej znajduje się ślad stosu.GroupLayout może być używany tylko z jednym kontem na raz.
Exception in thread "main" java.lang.IllegalArgumentException: GroupLayout can only be used with one Container at a time
at javax.swing.GroupLayout.checkParent(Unknown Source)
at javax.swing.GroupLayout.invalidateLayout(Unknown Source)
at java.awt.Container.invalidate(Unknown Source)
at java.awt.Component.addNotify(Unknown Source)
at java.awt.Container.addNotify(Unknown Source)
at javax.swing.JComponent.addNotify(Unknown Source)
at java.awt.Container.addNotify(Unknown Source)
at javax.swing.JComponent.addNotify(Unknown Source)
at java.awt.Container.addNotify(Unknown Source)
at javax.swing.JComponent.addNotify(Unknown Source)
at javax.swing.JRootPane.addNotify(Unknown Source)
at java.awt.Container.addNotify(Unknown Source)
at java.awt.Window.addNotify(Unknown Source)
at java.awt.Frame.addNotify(Unknown Source)
at java.awt.Window.pack(Unknown Source)
at client.AlternateGUI.drawGui(AlternateGUI.java:54)
at client.AlternateGUI.main(AlternateGUI.java:24)
Oto kod:
package client;
import java.awt.Component;*
public class AlternateGUI {
private JList people;
private DefaultListModel dlm;
private JLabel l1, l2, l3;
private JFrame alternateGUIFrame;
private final static ImageIcon unavailableIcon = new ImageIcon("offline.png");
public static void main(String[] args)
{
AlternateGUI ls = new AlternateGUI();
ls.drawGui();
}
public AlternateGUI(){
dlm = new DefaultListModel();
people = new JList(dlm);
alternateGUIFrame = new JFrame();
JScrollPane peopleScroller = new JScrollPane(people, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
people.setCellRenderer(new CellRenderer());
GroupLayout alternateGUILayout = new GroupLayout(alternateGUIFrame);
alternateGUIFrame.setLayout(alternateGUILayout);
alternateGUILayout.setAutoCreateGaps(true);
alternateGUILayout.setAutoCreateContainerGaps(true);
alternateGUILayout.setHorizontalGroup(alternateGUILayout.createSequentialGroup()
.addComponent(peopleScroller));
alternateGUILayout.setVerticalGroup(alternateGUILayout.createSequentialGroup()
.addComponent(peopleScroller));
}
public void drawGui() {
l1 = new JLabel("Hi", unavailableIcon , JLabel.LEFT);
l2 = new JLabel("Hello", unavailableIcon , JLabel.LEFT);
l3 = new JLabel("Bye", unavailableIcon , JLabel.LEFT);
dlm.addElement(l1);
dlm.addElement(l2);
dlm.addElement(l3);
alternateGUIFrame.pack();
alternateGUIFrame.setVisible(true);
}
class CellRenderer implements ListCellRenderer
{
public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus)
{
Component com = (Component)value;
return com;
}
}
}
Dzięki! Zazwyczaj mam JPanele i dodam je do ramki, ale dziś postanowiłem dodać wszystko bezpośrednio do ramki. Pójdę sprawdzić to i zobaczę, czy to działa! --edit-- Udało się! :) – Nonconformist
@ Coolguy123: Nie ma za co. –
Splendid. Dzięki za udostępnienie człowieka! – Lawrence