小编Dem*_*ght的帖子

当这些值发生变化时,我的JSlider上的标签表不会根据滑块的最小值和最大值进行更新.最小/最大值会正确更新,因为getMinimum()和getMaximum()方法返回正确的值.滑块下方的自动标签显示不正确的值.

以下是此问题的独立示例.代码主要由Eclipse窗口构建器/ Swing设计器自动生成.

按滑块两侧的按钮可更改滑块最大值.

import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JPanel;

import java.awt.BorderLayout;

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

import javax.swing.JButton;
import javax.swing.JSlider;
import javax.swing.JLabel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

public class SliderTrouble implements ActionListener
{

    private JFrame frame;
    private JSlider slider;
    private JLabel lblMin;
    private JLabel lblMax;
    private JLabel lblCurrent;
    private int sliderMax = 100;
    private int sliderMajorSpacing = sliderMax / 4;

    /**
     * Launch the application.
     */
    public static void main(String[] args)
    {
        EventQueue.invokeLater(new Runnable()
        {
            public void run()
            {
                try
                { …