MigLayout hidemode 不起作用，无法隐藏组件

Question

我使用 MigLayout 已经有一段时间了，从来没有遇到过这个问题。 由于某种原因， hidemode 约束不起作用，我不能让它隐藏一个按钮。

这是一个演示它的代码片段：

import java.awt.Container;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import net.miginfocom.swing.MigLayout;

public class Builder extends JFrame {

    private final MigLayout migLayout = new MigLayout("debug, fillx", "[][]", "");

    public Builder() {
        try {
            createAndShowGUI();
        } catch (Throwable th) {
            th.printStackTrace();
            Builder.this.dispatchEvent(new WindowEvent(Builder.this, WindowEvent.WINDOW_CLOSING));
        }
    }

    private void createAndShowGUI() {
        Container container = getContentPane();
        container.setLayout(migLayout);
        JButton b1 = new JButton("b1");
        JButton b2 = new JButton("b2");
        container.add(b1, "hidemode 1, alignx left");
        container.add(b2, "alignx right");
        pack();
        setResizable(true);
        setTitle("Builder");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
        setVisible(true);
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new Builder();
    }
}

我正在使用 MigLayout 11.0 版

        <dependency>
            <groupId>com.miglayout</groupId>
            <artifactId>miglayout-swing</artifactId>
            <version>11.0</version>
        </dependency>

Answer 1

Hidemode 控制组件在component.setVisible(false);之后如何隐藏； 运行。 component.setVisible(false); 仍然需要隐藏组件。 Hidemode 控制布局中周围的组件随后如何调整。

例如，可以通过调用b1.setVisible(...);

import java.awt.event.WindowEvent;
import java.awt.Container;
import javax.swing.JButton;
import javax.swing.JFrame;
import net.miginfocom.swing.MigLayout;

public class Builder extends JFrame {

    private final MigLayout migLayout = new MigLayout("debug, fillx", "[][]", "");

    public Builder() {
        try {
            createAndShowGUI();
        } catch (Throwable th) {
            th.printStackTrace();
            Builder.this.dispatchEvent(new WindowEvent(Builder.this, WindowEvent.WINDOW_CLOSING));
        }
    }

    private void createAndShowGUI() {
        Container container = getContentPane();
        container.setLayout(migLayout);
        JButton b1 = new JButton("hide me");
        JButton b2 = new JButton("show it");
        container.add(b1, "hidemode 1, alignx left");
        container.add(b2, "alignx right");

        b1.addActionListener(e -> b1.setVisible(false));
        b2.addActionListener(e -> b1.setVisible(true));

        pack();
        setResizable(true);
        setTitle("Builder");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
        setVisible(true);
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new Builder();
    }
}