java - JDialog空闲时超时

Question

如何设置 JDialog 空闲时的超时(例如 90 秒)？

一旦 JDialog 90 秒内没有进行任何操作、移动、选择，它就会退出。

该线程超时但没有空闲条件 - Can I set a timer on a Java Swing JDialog box to close after a number of milliseconds

谢谢!

Answer 1

好吧，最大的问题是从用户那里获取足够的交互信息。您可以尝试使用 AWTEventListener，这是一种监视 AWTEvent 通过 EventQueue 的方法，并且在大多数情况下应该为您提供足够的信息有关可能的交互的信息。

由于并非所有事件都会通过 EventQueue，因此有时这可能并不总是有效，在这种情况下，您需要将额外的监听器附加到给您带来麻烦的组件并重置手动定时器...

import java.awt.AWTEvent;
import java.awt.Component;
import java.awt.Dialog;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Frame;
import java.awt.GraphicsConfiguration;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Toolkit;
import java.awt.Window;
import java.awt.event.AWTEventListener;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.Timer;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;

public class Test {

    public static void main(String[] args) {
        new Test();
    }

    public Test() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
                    ex.printStackTrace();
                }

                IdleDialog dialog = new IdleDialog(5, (Window) null, "Testing");
                dialog.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
                dialog.add(new TestPane());
                dialog.pack();
                dialog.setLocationRelativeTo(null);
                dialog.setVisible(true);
            }
        });
    }

    public class TestPane extends JPanel {

        public TestPane() {
            setLayout(new GridBagLayout());
            GridBagConstraints gbc = new GridBagConstraints();
            gbc.gridwidth = GridBagConstraints.REMAINDER;
            add(new JLabel("This is a bad idea"), gbc);
            add(new JButton("Don't tell me"), gbc);
        }

        @Override
        public Dimension getPreferredSize() {
            return new Dimension(200, 200);
        }

    }

    public class IdleDialog extends JDialog {

        private long timeOut = 90 * 1000;
        private long startTime;
        private Timer timer;
        private String originalTitle;

        public IdleDialog(long timeOut) {
            init(timeOut);
        }

        public IdleDialog(long timeOut, Frame owner) {
            super(owner);
            init(timeOut);
        }

        public IdleDialog(long timeOut, Frame owner, boolean modal) {
            super(owner, modal);
            init(timeOut);
        }

        public IdleDialog(long timeOut, Frame owner, String title) {
            super(owner, title);
            init(timeOut);
        }

        public IdleDialog(long timeOut, Frame owner, String title, boolean modal) {
            super(owner, title, modal);
            init(timeOut);
        }

        public IdleDialog(long timeOut, Frame owner, String title, boolean modal, GraphicsConfiguration gc) {
            super(owner, title, modal, gc);
            init(timeOut);
        }

        public IdleDialog(long timeOut, Dialog owner) {
            super(owner);
            init(timeOut);
        }

        public IdleDialog(long timeOut, Dialog owner, boolean modal) {
            super(owner, modal);
            init(timeOut);
        }

        public IdleDialog(long timeOut, Dialog owner, String title) {
            super(owner, title);
            init(timeOut);
        }

        public IdleDialog(long timeOut, Dialog owner, String title, boolean modal) {
            super(owner, title, modal);
            init(timeOut);
        }

        public IdleDialog(long timeOut, Dialog owner, String title, boolean modal, GraphicsConfiguration gc) {
            super(owner, title, modal, gc);
            init(timeOut);
        }

        public IdleDialog(long timeOut, Window owner) {
            super(owner);
            init(timeOut);
        }

        public IdleDialog(long timeOut, Window owner, ModalityType modalityType) {
            super(owner, modalityType);
            init(timeOut);
        }

        public IdleDialog(long timeOut, Window owner, String title) {
            super(owner, title);
            init(timeOut);
        }

        public IdleDialog(long timeOut, Window owner, String title, ModalityType modalityType) {
            super(owner, title, modalityType);
            init(timeOut);
        }

        public IdleDialog(long timeOut, Window owner, String title, ModalityType modalityType, GraphicsConfiguration gc) {
            super(owner, title, modalityType, gc);
            init(timeOut);
        }

        protected void init(double timeOutValue) {

            this.timeOut = Math.round(timeOutValue * 1000);

            timer = new Timer(1000, new ActionListener() {
                @Override
                public void actionPerformed(ActionEvent e) {
                    long runningTime = System.currentTimeMillis() - startTime;
                    System.out.println(runningTime + "/" + timeOut);
                    if (runningTime >= timeOut) {
                        timer.stop();
                        dispose();
                    } else {
                        String title = originalTitle + " [" + (((timeOut - runningTime) / 1000) + 1) + "]";
                        setTitle(title);
                    }
                }
            });

            originalTitle = getTitle();
            String title = originalTitle + " [" + ((timeOut / 1000)) + "]";
            setTitle(title);
            addPropertyChangeListener("title", new PropertyChangeListener() {
                @Override
                public void propertyChange(PropertyChangeEvent evt) {
                    if (!timer.isRunning()) {
                        originalTitle = (String) evt.getNewValue();
                    }
                }
            });

            addWindowListener(new WindowAdapter() {
                @Override
                public void windowOpened(WindowEvent e) {
                        timer.start();
                }

                @Override
                public void windowClosed(WindowEvent e) {
                    timer.stop();
                }

            });

            Toolkit.getDefaultToolkit().addAWTEventListener(new AWTEventListener() {
                @Override
                public void eventDispatched(AWTEvent event) {
                    Object source = event.getSource();
                    if (source instanceof Component) {
                        Window win = null;
                        if (!(source instanceof Window)) {
                            win = SwingUtilities.getWindowAncestor((Component) source);
                        } else {
                            win = (Window) source;
                        }
                        if (IdleDialog.this.equals(win)) {
                            if (win.isVisible() && timer.isRunning()) {
                                resetTimeout();
                            }
                        }
                    }
                }
            }, AWTEvent.ACTION_EVENT_MASK
                            | AWTEvent.ADJUSTMENT_EVENT_MASK
                            | AWTEvent.COMPONENT_EVENT_MASK
                            | AWTEvent.CONTAINER_EVENT_MASK
                            | AWTEvent.FOCUS_EVENT_MASK
                            | AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK
                            | AWTEvent.HIERARCHY_EVENT_MASK
                            | AWTEvent.INPUT_METHOD_EVENT_MASK
                            | AWTEvent.INVOCATION_EVENT_MASK
                            | AWTEvent.ITEM_EVENT_MASK
                            | AWTEvent.KEY_EVENT_MASK
                            | AWTEvent.MOUSE_EVENT_MASK
                            | AWTEvent.MOUSE_MOTION_EVENT_MASK
                            | AWTEvent.MOUSE_WHEEL_EVENT_MASK
                            | //                            AWTEvent.PAINT_EVENT_MASK |
                            AWTEvent.TEXT_EVENT_MASK
                            | AWTEvent.WINDOW_EVENT_MASK
                            | AWTEvent.WINDOW_FOCUS_EVENT_MASK
                            | AWTEvent.WINDOW_STATE_EVENT_MASK
            );
        }

        public void resetTimeout() {
            timer.restart();
            startTime = System.currentTimeMillis();
            String title = originalTitle + " [" + ((timeOut / 1000)) + "]";
            setTitle(title);
        }

    }

}