逛奔的蜗牛

在JSlider中,

Knob是小滑块

Track是slider中间小滑块滑动的轨迹:JSlider.setPaintTrack(false)

用到的方向常量:都是SwingConstants的,虽然可以用如JSlider.VERTICAL,但也能用

SwingConstants.VERTICAL, RIGHT, HORIZONTAL, LEFT, CENTER.

Tick mark是slider中的刻度数字:JSlider.setPaintTicks(true)与

JSlider.setMajorTickSpacing(int)和setMinorTickSpacing(int)一起用

显示滑动标尺上的数字:JSlider.setPaintLabels(true)

 

    // Create horizontal slider
    JSlider slider = new JSlider();
    
    // Register a change listener
    slider.addChangeListener(new ChangeListener() {
        // This method is called whenever the slider's value is changed
        public void stateChanged(ChangeEvent evt) {
            JSlider slider = (JSlider)evt.getSource();
    
            if (!slider.getValueIsAdjusting()) {
                // Get new value
                int value = slider.getValue();
            }
        }
    });