मैं निम्नलिखित कोड है:बटन पर पैनल आकार बदलें क्लिक
package in.res.num.tapb.ui;
import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
class MainClass extends JPanel {
public MainClass() {
Registration registration = new Registration();
ButtonPanel buttonPanel = new ButtonPanel();
buttonPanel.setRegistration(registration);
buttonPanel.setBorder(BorderFactory.createTitledBorder("Button Panel"));
registration.setBorder(BorderFactory.createTitledBorder("Registration Panel"));
setLayout(new BorderLayout());
add(registration, BorderLayout.CENTER);
add(buttonPanel, BorderLayout.SOUTH);
}
private static void createAndShowUI() {
JFrame frame = new JFrame("Registration");
frame.getContentPane().add(new MainClass());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setResizable(false);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public static void main(String[] args) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
createAndShowUI();
}
});
}
@SuppressWarnings("serial")
private class ButtonPanel extends JPanel {
private Registration registration;
public ButtonPanel() {
setLayout(new GridLayout(1, 0, 10, 0));
for (final String keyText : Registration.KEY_TEXTS) {
JButton btn = new JButton(keyText);
btn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (registration != null) {
registration.swapView(keyText);
}
}
});
add(btn);
}
}
public void setRegistration(Registration registration) {
this.registration = registration;
}
}
private static class Registration extends JPanel {
private static final Dimension PREF_SIZE = new Dimension(450, 300);
public static final String USER_AGREEMENT = "User Agreement";
public static final String USER_INFO = "User Information";
public static final String ENROLLMENT = "Enrollment";
public static final String[] KEY_TEXTS = { USER_AGREEMENT, USER_INFO, ENROLLMENT };
private CardLayout cardlayout = new CardLayout();
private JPanel cards = new JPanel(cardlayout);
public Registration() {
cards.add(createUserAgreePanel(), USER_AGREEMENT);
cards.add(createUserInfoPanel(), USER_INFO);
cards.add(createEnrollmentPanel(), ENROLLMENT);
setLayout(new BorderLayout());
add(cards, BorderLayout.CENTER);
}
private JPanel createEnrollmentPanel() {
JPanel enrol = new JPanel();
enrol.setSize(new Dimension(400, 200));
enrol.add(new JLabel("Enrollment"));
return enrol;
}
private JPanel createUserAgreePanel() {
JPanel userAgree = new JPanel();
userAgree.setSize(new Dimension(200, 300));
userAgree.add(new JLabel("User Agreement"));
return userAgree;
}
private JPanel createUserInfoPanel() {
JPanel userInfo = new JPanel();
userInfo.setSize(new Dimension(300, 400));
userInfo.add(new JLabel("User Information"));
return userInfo;
}
public void swapView(String key) {
cardlayout.show(cards, key);
}
}
}
आप देख सकते हैं मैं बटन पर क्लिक आकार बदलना चाहते हैं। क्या यह संभव है? उपर्युक्त कोड काम नहीं कर रहा है, मेरा मतलब है कि आकार बदल नहीं रहा है। मैं फ्लाई पर आकार कैसे बदल सकता हूं?
धन्यवाद और सम्मान करता है। संपादित करें:
जेएलिस्ट की एक पंक्ति का चयन करने के लिए पैनल को स्वैप करें।
getChoicesList().addListSelectionListener(new ListSelectionListener() {
@Override
public void valueChanged(ListSelectionEvent listSelectionEvent) {
getViewPanel().changeView(getChoicesList().getSelectedIndex());
getChoicePanel().changeView(Constants.PanelInfo.valueOf(getEngine().getChoiceList().get(getChoicesList().getSelectedIndex()).getEnumName()).getDimensionForScrollPaneOfChoicePanel());
((MainFrame) getTopLevelAncestor()).pack();
}
});
ViewPanel # changeView(), इस पैनल स्वैप:
public void changeView(int index) {
removeAll();
getPanels().get(index).setPreferredSize(Constants.PanelInfo.valueOf(getEngine().getChoiceList().get(index).getEnumName()).getDimensionForViewPanel());
add(getPanels().get(index));
}
इस मदद कर सकते हैं हो सकता है http://stackoverflow.com/questions/3889498/how-can-i-increase-decrease-size-of-window-on-click-event – Shadow
+1 धन्यवाद ... –
+1 [एसएससीईएस] के लिए +1 (http://sscce.org/)। – trashgod