摇摆窗口间歇性空白

Question

Swing GUI 间歇性空白，这里是一张图片，显示我循环执行代码以显示 GUI 5 次，最后一次是空白的我正在使用 InvokeLater 执行 GUI，我试过没有它，结果还是一样。这是足够的代码来启动和运行 GUI    public class Main_UI extends JFrame {    public Main_UI() {        JPanel gui = new JPanel(new BorderLayout());        setUndecorated(true);        setLocationRelativeTo(null);        setVisible(true);        setSize(329, 256);        setResizable(false);        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);        ThemeUtils.setTopBar(gui, this);    }}这是代码 ThemeUtils.setTopBar    public static void setTopBar(JPanel jPanel, JFrame frame) {    JPanel topPanel = new JPanel(new FlowLayout(FlowLayout.RIGHT));    JButton exitButton = new JButton("X");    JButton minimizeButton = new JButton("-");    topPanel.add(minimizeButton);    topPanel.add(exitButton);    jPanel.add(BorderLayout.NORTH, topPanel);    new DragFeatures(topPanel, frame).setupDragFeatures();}最后是DragFeatures课程代码public class DragFeatures {    private Point compCoords;    private JPanel panel;    private JFrame frame;    public DragFeatures(JPanel panel, JFrame frame) {        this.panel = panel;        this.frame = frame;    }    public void setupDragFeatures() {        compCoords = null;        panel.addMouseListener(new MouseAdapter() {            public void mouseReleased(MouseEvent e) {                compCoords = null;            }            public void mousePressed(MouseEvent e) {                compCoords = e.getPoint();            }        });        panel.addMouseMotionListener(new MouseMotionListener() {            public void mouseMoved(MouseEvent e) {            }            public void mouseDragged(MouseEvent e) {                Point currCoords = e.getLocationOnScreen();                frame.setLocation(currCoords.x - compCoords.x, currCoords.y - compCoords.y);            }        });    }}这应该足以重现错误。

Answer 1

好吧，看起来没有人想回答这个问题，所以我会继续让你们知道是什么解决了这个问题。我setVisible在添加所有视图的最后打电话，感谢@Madprogrammer