JSplitPaneVerticalSetTopBottom.java Source code

Introduction

Here is the source code for JSplitPaneVerticalSetTopBottom.java

Source

import java.awt.BorderLayout;
import java.awt.event.HierarchyEvent;
import java.awt.event.HierarchyListener;

import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JSplitPane;

public class JSplitPaneVerticalSetTopBottom {
    public static void main(String[] a) {
        JFrame horizontalFrame = new JFrame();
        horizontalFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JComponent topButton = new JButton("Left");
        JComponent bottomButton = new JButton("Right");
        final JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT);

        HierarchyListener hierarchyListener = new HierarchyListener() {
            public void hierarchyChanged(HierarchyEvent e) {
                long flags = e.getChangeFlags();
                System.out.println(e.getSource());
                if ((flags & HierarchyEvent.SHOWING_CHANGED) == HierarchyEvent.SHOWING_CHANGED) {
                    splitPane.setDividerLocation(.75);
                }
            }
        };
        splitPane.addHierarchyListener(hierarchyListener);

        splitPane.setTopComponent(topButton);
        splitPane.setBottomComponent(bottomButton);

        horizontalFrame.add(splitPane, BorderLayout.CENTER);
        horizontalFrame.setSize(150, 150);
        horizontalFrame.setVisible(true);

    }
}