JButton调整所有屏幕 | JButton调整所有屏幕

本文介绍了JButton调整所有屏幕的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述

我有以下代码
  c  li> 
  仅在 
  import java.awt.BorderLayout; 
 import java.awt.EventQueue; 
 import java.awt.GridLayout; 
 import javax.swing.BorderFactory; 
 import javax.swing.JButton; 
 import javax.swing.JFrame; 
 import javax.swing.JPanel; 
 
 / ** 
 * @see http://stackoverflow.com/a/37366846/230513 
 * / 
 public class Test {
 
 private static final int PAD = 50; 
 
 private void display（）{
 JFrame f = new JFrame（Test）; 
 f.setDefaultCloseOperation（JFrame.EXIT_ON_CLOSE）; 
 JPanel p = new JPanel（new GridLayout（0，1，PAD，PAD））; 
 p.setBorder（BorderFactory.createEmptyBorder（PAD，PAD，PAD，PAD））; 
 p.add（new JButton（Test Button 1））; 
 p.add（new JButton（Test Button 2））; 
 f.add（p，BorderLayout.CENTER）; 
 f.pack（）; 
 f.setLocationRelativeTo（null）; 
 f.setVisible（true）; 
} 
 
 public static void main（String [] args）{
 EventQueue.invokeLater（new Test（）:: display）; 
} 
} 
  
 
I have the following code
    JFrame frame = new JFrame("Organizer");
    frame.setBounds(100, 100, 700, 700);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);


    JButton testbutton = new JButton("testbutton");
    testbutton.setBounds(0, 0, 55, 55);

    JButton testbutton2 = new JButton("tdestbutton2");
    testbutton2.setBounds(55, 0, 44, 44);

    frame.add(testbutton2);
    frame.add(testbutton);
and the result sometimes is correct and sometimes is this
what im doing wrong?
 解决方案 
Don't use setBounds(); do use a layout manager.
Invoke setVisible() after adding components to the enclosing container.
Construct and manipulate Swing GUI objects only on the event dispatch thread.
The example below adds a panel having an empty border and a GridLayout that is padded to match. For such an application, also consider JToolBar for the buttons and CardLayout for the working screens.
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.GridLayout;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

/**
 * @see http://stackoverflow.com/a/37366846/230513
 */
public class Test {

    private static final int PAD = 50;

    private void display() {
        JFrame f = new JFrame("Test");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JPanel p = new JPanel(new GridLayout(0, 1, PAD, PAD));
        p.setBorder(BorderFactory.createEmptyBorder(PAD, PAD, PAD, PAD));
        p.add(new JButton("Test Button 1"));
        p.add(new JButton("Test Button 2"));
        f.add(p, BorderLayout.CENTER);
        f.pack();
        f.setLocationRelativeTo(null);
        f.setVisible(true);
    }

    public static void main(String[] args) {
        EventQueue.invokeLater(new Test()::display);
    }
}
                        
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