Swing中Frame窗口显示dialog窗口再弹出对话框，背景为白色不显示组件解决办法

最新推荐文章于 2023-10-29 23:58:29 发布

rehuojunguan

最新推荐文章于 2023-10-29 23:58:29 发布

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分类专栏： Java 文章标签： swing java

本文链接：https://blog.youkuaiyun.com/rehuojunguan/article/details/73281979

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将Frame上显示Dialog构造函数的Frame 变为JDialog或者Dialog

public BigDialog(JDialog parent){...}

package com.test.gui;
import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
class C extends JDialog{
	public C(Frame parent, boolean modal, String title, String message){
		super(parent, modal);
	    initComponents();
	    //Container container=getContentPane();
	    //container.setBackground(Color.green);
	    this.setModal(modal);
	    //this.getRootPane().setDefaultButton(btnContinue);
	    setAlwaysOnTop(true);	    
	    this.setTitle(title);	    
	}
	 private void initComponents() {
        add(new JLabel("C - initComponents"), BorderLayout.CENTER);
		JPanel panel = new JPanel();
		JButton ok = new JButton("Okay");
		panel.add(ok);
		add(panel, BorderLayout.SOUTH);
		setSize(300, 300);
		setAlwaysOnTop(true);
		java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
        setBounds((screenSize.width-373)/2, (screenSize.height-204)/2, 373, 204);
	 }
	
}
class BigDialog extends JDialog{
	public BigDialog(JDialog parent){
		super(parent, "About Dialog Test", true);
		add(new JLabel("--------BigDialog - 2---------"), BorderLayout.CENTER);
		JPanel panel = new JPanel();
		JButton ok = new JButton("Okay");
		ok.addActionListener(new ActionListener(){
			@Override
			public void actionPerformed(ActionEvent e) {
				//setVisible(false);	
				C obj = new C(null, true, "C", "34");
				obj.setVisible(true);
			}		
		});
		panel.add(ok);
		add(panel, BorderLayout.SOUTH);
		setSize(1300, 800);
		setAlwaysOnTop(true);
	}
}
public class TestDialog extends JDialog{
	public TestDialog(JFrame owner){
		super(owner, "About Dialog Test", true);
		add(new JLabel("-------main dialog - 1----------"), BorderLayout.CENTER);
		JPanel panel = new JPanel();
		JButton ok = new JButton("Okay");
		ok.addActionListener(new ActionListener(){
			@Override
			public void actionPerformed(ActionEvent e) {
				//setVisible(false);	
				BigDialog obj = new BigDialog(null);
				obj.setVisible(true);
			}		
		});
		panel.add(ok);
		add(panel, BorderLayout.SOUTH);
		setSize(500, 300);
	}	
	public static void main(String[] args) {
		TestDialog obj = new TestDialog(null);
		obj.setVisible(true);
	}
}