Java 单击按钮打开新的JFrame/GUI,
我似乎找不到让代码正常工作的方法。 我正在做一个程序,直到现在一切都正常,我有一些按钮,他们做他们应该做的。 但是现在我添加了一个按钮,当用户单击它时,它应该关闭当前的GUI并打开一个新的GUI。 我还想指出,我为这个新GUI创建了一个新类 我想调用的另一个GUI类是GuiCrafting,在该类中,GUI也都是经过编码的,如果我在Main上调用它,它就会工作 我的问题是我在这里键入什么(我尝试了许多方法,如dispose()等,但我只收到错误消息):Java 单击按钮打开新的JFrame/GUI,,java,swing,jframe,Java,Swing,Jframe,我似乎找不到让代码正常工作的方法。 我正在做一个程序,直到现在一切都正常,我有一些按钮,他们做他们应该做的。 但是现在我添加了一个按钮,当用户单击它时,它应该关闭当前的GUI并打开一个新的GUI。 我还想指出,我为这个新GUI创建了一个新类 我想调用的另一个GUI类是GuiCrafting,在该类中,GUI也都是经过编码的,如果我在Main上调用它,它就会工作 我的问题是我在这里键入什么(我尝试了许多方法,如dispose()等,但我只收到错误消息): 提前谢谢,如果您需要更多信息,请告诉我。多
提前谢谢,如果您需要更多信息,请告诉我。多个
JFrame
s都是不受欢迎的,因为您可以阅读和
也许您想要使用的是一个管理共享相同显示空间的两个或多个组件(通常是JPanel
实例)的
点击“转到卡2”按钮后
TestApp.java:
import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.event.ActionEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
public class TestApp {
final static String CARD1 = "Card1";
final static String CARD2 = "Card2";
public TestApp() {
initComponents();
}
public static void main(String[] args) {
SwingUtilities.invokeLater(TestApp::new);
}
private void initComponents() {
JFrame frame = new JFrame("TestApp");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// create the panel that contains the "cards".
JPanel cards = new JPanel(new CardLayout());
// card 1 components
JButton buttonGotoCard2 = new JButton("Goto Card 2");
buttonGotoCard2.addActionListener((ActionEvent e) -> {
CardLayout cl = (CardLayout) (cards.getLayout());
cl.show(cards, CARD2);
});
// create card 1
JPanel card1 = new JPanel();
card1.add(new JLabel("Card 1"));
card1.add(buttonGotoCard2);
// card 2 components
JButton buttonGotoCard1 = new JButton("Goto Card 1");
buttonGotoCard1.addActionListener((ActionEvent e) -> {
CardLayout cl = (CardLayout) (cards.getLayout());
cl.show(cards, CARD1);
});
// create card 2
JPanel card2 = new JPanel();
card2.add(new JLabel("Card 2"));
card2.add(buttonGotoCard1);
// add cards to cards panel
cards.add(card1, CARD1);
cards.add(card2, CARD2);
frame.getContentPane().add(cards, BorderLayout.CENTER);
frame.pack();
frame.setVisible(true);
}
}
import java.awt.event.ActionEvent;
import java.awt.event.WindowAdapter;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.border.EmptyBorder;
public class TestApp {
public TestApp() {
initComponents();
}
public static void main(String[] args) {
SwingUtilities.invokeLater(TestApp::new);
}
private void initComponents() {
JFrame mainFrame = new JFrame();
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel panel = new JPanel();
panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
panel.setBorder(new EmptyBorder(10, 10, 10, 10));
JLabel label = new JLabel("JFrame 1");
JButton button = new JButton("Open JFrame 2");
button.addActionListener((ActionEvent e) -> {
this.showNewJFrame(new WindowAdapter() {
@Override
public void windowClosing(java.awt.event.WindowEvent e) {
// here we listen for the second JFrame being closed so we can bring back the main JFrame
mainFrame.setVisible(true);
}
});
// hide the main JFrame
mainFrame.setVisible(false);
});
panel.add(label);
panel.add(button);
mainFrame.add(panel);
mainFrame.pack();
mainFrame.setVisible(true);
}
private void showNewJFrame(WindowAdapter windowAdapter) {
JFrame frame2 = new JFrame();
frame2.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); // we dont wnat to exit when this JFrame is closed
JPanel panel2 = new JPanel();
panel2.setLayout(new BoxLayout(panel2, BoxLayout.Y_AXIS));
panel2.setBorder(new EmptyBorder(10, 10, 10, 10));
JLabel label2 = new JLabel("JFrame 2");
panel2.add(label2);
frame2.add(panel2);
frame2.addWindowListener(windowAdapter);
frame2.pack();
frame2.setVisible(true);
}
}
还有一种可能是你想要的
但是
您可以轻松地执行类似操作(如果必须,请从另一个打开JFrame
):
TestApp.java:
import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.event.ActionEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
public class TestApp {
final static String CARD1 = "Card1";
final static String CARD2 = "Card2";
public TestApp() {
initComponents();
}
public static void main(String[] args) {
SwingUtilities.invokeLater(TestApp::new);
}
private void initComponents() {
JFrame frame = new JFrame("TestApp");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// create the panel that contains the "cards".
JPanel cards = new JPanel(new CardLayout());
// card 1 components
JButton buttonGotoCard2 = new JButton("Goto Card 2");
buttonGotoCard2.addActionListener((ActionEvent e) -> {
CardLayout cl = (CardLayout) (cards.getLayout());
cl.show(cards, CARD2);
});
// create card 1
JPanel card1 = new JPanel();
card1.add(new JLabel("Card 1"));
card1.add(buttonGotoCard2);
// card 2 components
JButton buttonGotoCard1 = new JButton("Goto Card 1");
buttonGotoCard1.addActionListener((ActionEvent e) -> {
CardLayout cl = (CardLayout) (cards.getLayout());
cl.show(cards, CARD1);
});
// create card 2
JPanel card2 = new JPanel();
card2.add(new JLabel("Card 2"));
card2.add(buttonGotoCard1);
// add cards to cards panel
cards.add(card1, CARD1);
cards.add(card2, CARD2);
frame.getContentPane().add(cards, BorderLayout.CENTER);
frame.pack();
frame.setVisible(true);
}
}
import java.awt.event.ActionEvent;
import java.awt.event.WindowAdapter;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.border.EmptyBorder;
public class TestApp {
public TestApp() {
initComponents();
}
public static void main(String[] args) {
SwingUtilities.invokeLater(TestApp::new);
}
private void initComponents() {
JFrame mainFrame = new JFrame();
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel panel = new JPanel();
panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
panel.setBorder(new EmptyBorder(10, 10, 10, 10));
JLabel label = new JLabel("JFrame 1");
JButton button = new JButton("Open JFrame 2");
button.addActionListener((ActionEvent e) -> {
this.showNewJFrame(new WindowAdapter() {
@Override
public void windowClosing(java.awt.event.WindowEvent e) {
// here we listen for the second JFrame being closed so we can bring back the main JFrame
mainFrame.setVisible(true);
}
});
// hide the main JFrame
mainFrame.setVisible(false);
});
panel.add(label);
panel.add(button);
mainFrame.add(panel);
mainFrame.pack();
mainFrame.setVisible(true);
}
private void showNewJFrame(WindowAdapter windowAdapter) {
JFrame frame2 = new JFrame();
frame2.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); // we dont wnat to exit when this JFrame is closed
JPanel panel2 = new JPanel();
panel2.setLayout(new BoxLayout(panel2, BoxLayout.Y_AXIS));
panel2.setBorder(new EmptyBorder(10, 10, 10, 10));
JLabel label2 = new JLabel("JFrame 2");
panel2.add(label2);
frame2.add(panel2);
frame2.addWindowListener(windowAdapter);
frame2.pack();
frame2.setVisible(true);
}
}
这将产生:
单击“打开JFrame 2”时:
当JFrame 2关闭时,它会通过WindowAdapter#windowClosing
返回主JFrame