我知道之前已经问过这个问题。但我的独特之处。我的编程有一个特定的顺序，我在使用文本时遇到了JLabel的问题。我需要将文本保留在JFrame的中心，但也需要在图像上方。我已经尝试了各种选项，但似乎没有任何工作。这是相对编码：
public class SceneOne {
public static void main(String[] args) throws IOException {
// TODO Auto-generated method stub
JFrame SceneOne= new JFrame();
SceneOne.setSize(1400,700);
SceneOne.setTitle("The Car");
SceneOne.setVisible(true);
SceneOne.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
SceneOne.setLocation(500,300);
ImageIcon image = new ImageIcon("/Users/computerscience2/Desktop/dark-forest-night-image.jpg");
JLabel imageLabel = new JLabel("", image, JLabel.CENTER);
JPanel panel = new JPanel(new BorderLayout());
panel.add( imageLabel, BorderLayout.CENTER );
SceneOne.add(panel);
SceneOne.setResizable(true);
imageLabel.setVisible(true);
SceneOne.pack();
Button Leave=new Button("Leave");
Button Stay= new Button("Stay");
Leave.setVisible(true);
Stay.setVisible(true);
JPanel Leavebutton =new JPanel (new GridBagLayout());
Leavebutton.setVisible(true);
JPanel Staybutton=new JPanel (new GridBagLayout());
Staybutton.setVisible(true);
Leavebutton.add(Leave);
Staybutton.add(Stay);
FlowLayout two = new FlowLayout(FlowLayout.LEFT);
FlowLayout three=new FlowLayout(FlowLayout.RIGHT);
Leavebutton.setLayout(two);
Staybutton.setLayout(three);
SceneOne.add(Leavebutton);
SceneOne.add(Staybutton);
JLabel label1 = new JLabel("Test");
SceneOne.add(label1);
label1.setText("<html><font color='white'> It was approximately 11:30 pm. The night sky was black not a single star piercing through the darkness"
+ "except the thick and powerful moonlight." +"<br>" + "You are alone leaving a costume party at a friend's place."
+ "It was rather boring and you decided to leave early."+"A stutter is heard and your"+ "<br>"+ "car begins to shake"
+ "Your headlights and car lights crack. The engine is left dead silent." + "You are left in a total silence"
+ "and baked in merely the moonlight." +"<br>" + "There is a mere second of silence till a harsh chill ripes through the"
+ "car like a bullet through paper. You are left dumbfounded. What do you do?</font><html>");
label1.setHorizontalAlignment(JLabel.CENTER);
label1.setVerticalAlignment(JLabel.BOTTOM);
label1.setVisible(true);
}
}
先谢谢你
答案 0 :(得分：1)
你可以使用JLayeredPane来进行这类游戏。它有像moveToFront（Component），moveToBack（Component）和setPosition这样的方法，可用于重新定位其图层中的组件。
import java.awt.ComponentOrientation;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BoxLayout;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JLayeredPane;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
public class SceneOne extends JPanel
implements ActionListener {
private JLayeredPane layeredPane;
private JLabel imageLabel;
int frameWidth,frameHeight;
Rectangle bounds;
public SceneOne() {
setLayout(new BoxLayout(this, BoxLayout.PAGE_AXIS));
//Set the width of the frame here. It could be changes to the image width.
frameWidth = 1400;
frameHeight = 700;
bounds = new Rectangle(0, 0, frameWidth, frameHeight);
final ImageIcon bgImage = new ImageIcon("/Users/computerscience2/Desktop/dark-forest-night-image.jpg");
imageLabel = new JLabel(bgImage);
if (bgImage != null) {
imageLabel.setBounds(0, 0,
bgImage.getIconWidth(),
bgImage.getIconHeight());
}
//Create and set up the layered pane.
layeredPane = new JLayeredPane();
layeredPane.setPreferredSize(new Dimension(frameWidth, frameHeight));
//The components
JPanel buttonPanel = createButtonPanel();
JLabel textLabel = new JLabel("Test");
textLabel.setText("<html><font color='white'> It was approximately 11:30 pm. The night sky was black not a single star piercing through the darkness"
+ "except the thick and powerful moonlight."
+ "<br>"
+ "You are alone leaving a costume party at a friend's place."
+ "It was rather boring and you decided to leave early."
+ "A stutter is heard and your"
+ "<br>"
+ "car begins to shake"
+ "Your headlights and car lights crack. The engine is left dead silent."
+ "You are left in a total silence"
+ "and baked in merely the moonlight."
+ "<br>"
+ "There is a mere second of silence till a harsh chill ripes through the"
+ "car like a bullet through paper. You are left dumbfounded. What do you do?</font><html>");
textLabel.setHorizontalAlignment(JLabel.CENTER);
textLabel.setVerticalAlignment(JLabel.BOTTOM);
textLabel.setBounds(bounds);
//Adding components in order
layeredPane.add(imageLabel, new Integer(0));
layeredPane.add(buttonPanel, new Integer(1));
layeredPane.add(textLabel, new Integer(2));
add(layeredPane);
}
private JPanel createButtonPanel() {
JPanel panel = new JPanel();
panel.setLayout(new GridBagLayout());
panel.setBounds(bounds);
panel.setOpaque(false);
panel.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
GridBagConstraints c = new GridBagConstraints();
JButton button;
panel.setLayout(new GridBagLayout());
c.fill = GridBagConstraints.NONE;
button = new JButton("Stay");
c.weightx = 0.5;
c.weighty = 1.0;
c.gridx = 0;
c.gridy = 0;
c.anchor = GridBagConstraints.FIRST_LINE_START;
button.addActionListener(this);
panel.add(button, c);
button = new JButton("Leave");
c.weightx = 0.5;
c.gridx = 2;
c.gridy = 0;
c.anchor = GridBagConstraints.FIRST_LINE_END;
button.addActionListener(this);
panel.add(button, c);
return panel;
}
public void actionPerformed(ActionEvent e) {
String cmd = e.getActionCommand();
if ("Stay".equalsIgnoreCase(cmd)) {
JOptionPane.showMessageDialog(this, "Stay here!!!");
} else if ("Leave".equalsIgnoreCase(cmd)) {
JOptionPane.showMessageDialog(this, "Bye bye!!!");
}
}
/**
* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event-dispatching thread.
*/
private static void createAndShowGUI() {
JFrame frame = new JFrame("SceneOne");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JComponent newContentPane = new SceneOne();
frame.setLayout(null);
frame.setContentPane(newContentPane);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
}