GridBagLayout不移动组件（无论输入了什么值）？

Question

编辑：增加导入和主方法

编辑2：原来我认为x和y值是像素，这是它不能工作的原因

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;
public class HomeScreenUI {
    
      public void addobjects(Component componente, Container yourcontainer, GridBagLayout layout, GridBagConstraints gbc, int gridx, int gridy, int gridwidth, int gridheight){

            gbc.gridx = gridx;
            gbc.gridy = gridy;

            gbc.gridwidth = gridwidth;
            gbc.gridheight = gridheight;

            layout.setConstraints(componente, gbc);
            yourcontainer.add(componente);
        }
    HomeScreenUI(){
        //frame
        
        JFrame frame = new JFrame("Opisa");

        //panels, one before button click and one after
        JPanel panel = new JPanel();
        JPanel panelAfterButtonClick = new JPanel();
        GridBagLayout ourlayout;
        
        ourlayout = new GridBagLayout();
        panel.setLayout(ourlayout);
        panelAfterButtonClick.setLayout(ourlayout);
        
        GridBagConstraints gbc = new GridBagConstraints();

        //jlabel that isnt displaying + dimensions
        JLabel label = new JLabel("Opisa");
        label.setFont(new Font("Helvetica", Font.PLAIN, 70));
        //second jlabel that isn't displaying
        JLabel label2 = new JLabel("Home");
        label2.setFont(new Font("Helvetica", Font.PLAIN, 70));
        
        //adding the labels to the panels
        panel.add(label);
        panelAfterButtonClick.add(label2);
        
        //button that is displaying both before and after
        JButton button = new JButton("Click Me..");
        JButton buttonAfterClick = new JButton("Clicked Me..");
        
        //adding the buttons to the jpanel
        this.addobjects(label, panel, ourlayout, gbc, 0,0, 3, 1);
        this.addobjects(button, panel, ourlayout, gbc, 700, 100, 2, 0);

        this.addobjects(label2, panelAfterButtonClick, ourlayout, gbc, 200, 200, 1, 1);
        this.addobjects(buttonAfterClick, panelAfterButtonClick, ourlayout, gbc, 700, 10, 2, 0);
        
        //function that changes the panel after the button is clicked
        button.addActionListener(new ActionListener() {

              public void actionPerformed(ActionEvent event) {
                  frame.setContentPane(panelAfterButtonClick);
                  frame.invalidate();
                  frame.validate();
              }

            });
        //adding the panel to the frame and setting the size
        frame.add(panel);
        frame.setSize(720,1280);
        frame.setVisible(true);
    }
}
public static void main (String args[]) {
        HomeScreenUI hs = new HomeScreenUI();
}

Answer 1

看来您使用的GridBagLayout与设计时完全不同。注意，您有一个GridBagLayout实例，但希望将其用于两个面板。每个面板都需要有自己的LayoutManager实例。

然后看看你有多少GridBagConstraints。要添加的每个组件都需要它自己的实例来正确管理。

然后，您会向GridBagConstraints传递一些奇怪的值。我建议您花点时间，看看如何使用GridBagLayout。