Java如何创建带有自定义标签的JSlider？
该JSlider的setLabelTable()方法可以让你定义了一个自定义标签JSlider。标签表是一个Hashtable包含Integer数字作为键和一个JLabel组件作为其值的表。整数键对应于JSlider将自定义标签的刻度。
package org.nhooo.example.swing;
import javax.swing.*;
import java.awt.*;
import java.util.Hashtable;
public class JSliderCustomLabel extends JPanel {
public JSliderCustomLabel() {
initializeUI();
}
private void initializeUI() {
setLayout(new BorderLayout());
setPreferredSize(new Dimension(500, 200));
JSlider slider = new JSlider(JSlider.VERTICAL, 0, 40, 0);
slider.setMinorTickSpacing(1);
slider.setMajorTickSpacing(5);
slider.setPaintTicks(true);
Hashtable<Integer, JLabel> labels = new Hashtable<>();
labels.put(0, new JLabel("Freezing"));
labels.put(15, new JLabel("Cold"));
labels.put(25, new JLabel("Warm"));
labels.put(35, new JLabel("Hot"));
slider.setLabelTable(labels);
slider.setPaintLabels(true);
add(slider, BorderLayout.CENTER);
}
public static void showFrame() {
JPanel panel = new JSliderCustomLabel();
JFrame frame = new JFrame("JSlider Custom Label");
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.setContentPane(panel);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
JSliderCustomLabel.showFrame();
}
});
}
}上面的示例的屏幕截图是：