jSplitPane 具体场景使用

Mwangsheng

于 2017-08-30 14:11:51 发布

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分类专栏： swing 文章标签： swing JSplitPane

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本文介绍如何使用Java Swing中的JSplitPane组件来实现动态切换左右面板的功能。通过监听左侧按钮点击事件，移除并更换右侧面板内容，达到响应式布局的效果。

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使用了一个JSplitPane，左边是导航面板，有按钮，右边是空的面板，击左边的导航按钮，右边就显示响应的面板窗口。

效果实现的具体方法是：（1）点击左侧按监听事件启动

				     （2）监听方法调用写好的改变面板显示的方法

				     （3）简单方法实例如下：

					public void first(){
						 	  JPanel first = new JPanel();
							first.setBackground(Color.black);
							jsp.remove(1);
							repaint();
							jsp.setRightComponent(first);
							validate();
					}

说明：首先要删除掉JSplitPane面板中右侧的面板，调用repaint（）方法后，再将要展示的面板添加到JSplitPane的右侧，再调用validate（）方法。import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JSplitPane;
/**
 * @author wangsheng
 */
public class JSplitPaneTest extends JFrame{
	public JRadioButton button1;
	public JRadioButton button2;
	public JRadioButton button3;
	public ButtonGroup group;
	public JSplitPane jsp;
	public JPanel rightPanel;
	public JSplitPaneTest() {
	    initUI();
	    initAction();
	}
	public JPanel leftPanel(){
		JPanel leftPanel = new JPanel();
		button1 = new JRadioButton("修改",true);
		button1.setBounds(1, 0, 50, 20);
		button2 = new JRadioButton("添加");
		button2.setBounds(1, 30, 50, 20);
		button3 = new JRadioButton("删除");
		button3.setBounds(1, 60, 50, 20);
		group = new ButtonGroup();
		group.add(button1);
		group.add(button2);
		group.add(button3);
		leftPanel.add(button1);
		leftPanel.add(button2);
		leftPanel.add(button3);
		return leftPanel;
	}
	
	public void first(){
		JPanel first = new JPanel();
		first.setBackground(Color.black);
		jsp.remove(1);
		repaint();
		jsp.setRightComponent(first);
		validate();
	}
	public void second(){
		JPanel second = new JPanel();
		second.setBackground(Color.blue);
		jsp.remove(1);
		repaint();
		jsp.setRightComponent(second);
		validate();
		
	}
	public void third(){
		JPanel third = new JPanel();
		third.setBackground(Color.green);
		jsp.remove(1);
		repaint();
		jsp.setRightComponent(third);
		validate();
		
	}
	public void  initUI(){
		rightPanel = new JPanel();
		rightPanel.setBackground(Color.black);
		jsp = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,leftPanel(),rightPanel);
		this.add(jsp);
		this.setTitle("拆分窗口");
		this.setBounds(300, 200, 800, 500);
		this.setDefaultCloseOperation(EXIT_ON_CLOSE);
		this.setVisible(true);
	}
	public void initAction(){
		button1.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				first();
			}
		});
		button2.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				second();
			}
		});
		button3.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				third();
			}
		});
	}
	public static void main(String[] args) {
		  new JSplitPaneTest();
	
	}
}