我想知道当用户点击并在屏幕上拖动按钮时，我将如何调整窗口大小。我环顾四周，找不到任何答案。
我的窗口代码：
package Dashboard;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.JTextArea;
import javax.swing.SpringLayout;
public class DashboardWindow extends JFrame {
JMenuBar menuBar;
JMenuItem menuItem;
static JMenu menu;
static JPanel Desc = new JPanel();
static JMenu dm = new JMenu("Dashboard");
static JLabel slabel = new JLabel();
static JPanel status = new JPanel();
static JPanel frame = new JPanel();
static JPanel games = new JPanel();
static JPanel apps = new JPanel();
static JMenuItem Exit = new JMenuItem("Exit");
static JMenuBar menubar = new JMenuBar();
static JTextArea descText = new JTextArea();
static JButton run = new JButton("run");
public static JProgressBar pbar;
/**
*
*/
private static final long serialVersionUID = 1L;
public DashboardWindow(String title, int operations) {
super(title);
pbar = new JProgressBar(0, operations);
Color gray = new Color(41, 39, 39);
Color white = new Color(199, 197, 197);
Color ngray = new Color(32, 32, 32);
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
int width = (int) screenSize.getWidth();
int height = (int) screenSize.getHeight();
System.out.println("screen width : " + width + ", screen height : " + height);
SpringLayout springLayout = new SpringLayout();
Desc.setLayout(springLayout);
menubar.setBackground(gray);
menubar.setForeground(gray);
menubar.setBorderPainted(false);
menubar.setBorder(BorderFactory.createEmptyBorder());
pbar.setBackground(gray);
slabel.setText(" : No Tasks Right Now");
slabel.setSize(278, 15);
slabel.setBackground(gray);
slabel.setLocation(0, 253);
slabel.setForeground(white);
dm.setBackground(gray);
dm.setForeground(white);
dm.setBorderPainted(false);
dm.setBorder(BorderFactory.createEmptyBorder());
Exit.setBackground(gray);
Exit.setForeground(white);
Exit.setBorderPainted(false);
Exit.setBorder(BorderFactory.createEmptyBorder());
Exit.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
dm.add(Exit);
menubar.add(dm);
setJMenuBar(menubar);
Dimension prefSize = pbar.getPreferredSize();
prefSize.height = 10;
pbar.setPreferredSize(prefSize);
frame.setBackground(gray);
this.add(frame);
status.setBackground(gray);
status.setBorder(BorderFactory.createDashedBorder(null));
status.setPreferredSize(new Dimension(200, 80));
status.add(pbar);
status.add(slabel, BorderLayout.PAGE_END);
add(status, BorderLayout.PAGE_END);
games.setBackground(white);
games.setBorder(BorderFactory.createEmptyBorder());
games.setPreferredSize(new Dimension((int) (width / 6.5), (int) (height / 9.5)));
run.setBorderPainted(false);
run.setBackground(gray);
run.setFont(new Font("Arial", Font.PLAIN, 18));
run.setForeground(white);
//run.setAlignmentX(Component.CENTER_ALIGNMENT);
run.setVisible(false);
springLayout.putConstraint(SpringLayout.WEST, run, (int) (width / 3), SpringLayout.WEST, this);
springLayout.putConstraint(SpringLayout.NORTH, run, (int) (height / 15), SpringLayout.NORTH, this);
Desc.add(run);
apps.setLayout(new BoxLayout(apps, BoxLayout.Y_AXIS));
apps.setBackground(ngray);
apps.setBorder(BorderFactory.createEtchedBorder());
apps.setPreferredSize(new Dimension(300, 0));
Desc.setBackground(ngray);
Desc.setBorder(BorderFactory.createEtchedBorder());
Desc.setPreferredSize(new Dimension((int) (width / 1.65), 0));
//apps.setAlignmentX(CENTER_ALIGNMENT);
//descText.setAlignmentX(Component.CENTER_ALIGNMENT);
descText.setBackground(ngray);
springLayout.putConstraint(SpringLayout.WEST, descText, (int) (width / 20), SpringLayout.WEST, this);
springLayout.putConstraint(SpringLayout.NORTH, descText, (int) (height / 20), SpringLayout.NORTH, this);
Desc.add(descText);
add(Desc, BorderLayout.LINE_END);
add(apps, BorderLayout.LINE_START);
add(games, BorderLayout.CENTER);
this.setUndecorated(true);
this.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
this.setSize(new Dimension((int) (width / 1.35), (int) (height / 1.3)));
this.setLocationRelativeTo(null);
this.setVisible(true);
Dashboard.initializerTasks();
}
public static void PBarValue(int Value) {
pbar.setValue(Value);
}
public static void ChangeText(String text) {
slabel.setText(text);
}
public static void PWaitTrue() {
pbar.setIndeterminate(true);
}
public static void PWaitFalse() {
pbar.setIndeterminate(false);
}
public static void PSetMax(int max) {
pbar.setMaximum(max);
}
}
感谢任何帮助：D
答案 0 :(得分：0)
以下示例可能会对您有所帮助。
如何使用：
拖动方法：按住按钮并将鼠标移动到屏幕中的某个位置并释放。窗口（jframe）将调整大小。此示例仅处理窗口起始点（x，y）的右侧和底侧。您可以根据需要修改代码，以便在任何方向和方向上进行修改。调整大小。
Clcik方法：点击按钮并将鼠标移动到任何位置，然后重新点击即可发布。这样就有了＃＆39;调整大小
import java.awt.MouseInfo;
import javax.swing.JButton;
import javax.swing.JFrame;
public class WindowResize {
boolean isMoving = false;
JFrame objFrm = new JFrame("Resize Demo");
JButton ctrlButton = new JButton("Press and hold");
public void fnShow() {
objFrm.setSize(500, 500);
objFrm.add(ctrlButton, java.awt.BorderLayout.PAGE_END);
ctrlButton.setLocation(9, 0);
objFrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
objFrm.setVisible(true);
ctrlButton.addMouseListener(new java.awt.event.MouseAdapter() {
@Override
public void mouseReleased(java.awt.event.MouseEvent evt) {
fnSetScreenSize(evt, true);
}
});
ctrlButton.addMouseListener(new java.awt.event.MouseAdapter() {
@Override
public void mouseClicked(java.awt.event.MouseEvent evt) {
isMoving = !isMoving;
if (isMoving) {
ctrlButton.setText("Resizing now");
} else {
ctrlButton.setText("Window size just fine");
}
}
@Override
public void mouseExited(java.awt.event.MouseEvent evt) {
fnSetScreenSize(evt, isMoving);
}
});
ctrlButton.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
@Override
public void mouseMoved(java.awt.event.MouseEvent evt) {
fnSetScreenSize(evt, isMoving);
}
});
objFrm.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
@Override
public void mouseMoved(java.awt.event.MouseEvent evt) {
fnSetScreenSize(evt, isMoving);
}
});
}
private void fnSetScreenSize(java.awt.event.MouseEvent evt, boolean _isMoving) {
if (_isMoving) {
int intWidth = MouseInfo.getPointerInfo().getLocation().x - objFrm.getLocationOnScreen().x + ((ctrlButton.getHeight() / 2) * 2);
int intHeight = MouseInfo.getPointerInfo().getLocation().y - objFrm.getLocationOnScreen().y + ((ctrlButton.getHeight() / 2) * 2);
objFrm.setSize(intWidth, intHeight);
}
}
public static void main(String[] args) {
new WindowResize().fnShow();
}
}