如何在 Flutter 中均匀地更改滑块的轨道高度？

只需将 trackHeight 更新为 1。这将使它变得更好。

Padding(
            padding: const EdgeInsets.symmetric(horizontal: 12),
            child: SliderTheme(
              data: SliderTheme.of(context).copyWith(
                inactiveTrackColor: Color(0xff8d8e98),
                activeTrackColor: Colors.white,
                thumbColor: Color(0xffeb1555),
                overlayColor: Color(0x29eb1555),
                thumbShape: RoundSliderThumbShape(enabledThumbRadius: 15),
                overlayShape: RoundSliderOverlayShape(overlayRadius: 30),
                trackHeight: 1,                                             
              ),
              child: Slider(
                value: 183,
                min: 10,
                max: 270,
                onChanged: (double value) {},
              ),
            ),
          ),

这有点晚了，但是，由于我刚刚向自己解决了这个问题，我认为它可能对其他人有用：

您应该在 SliderTheme 数据中包含以下内容：

trackShape: RectangularSliderTrackShape(),

就是这样，您将获得相同高度的活动和非活动轨道！

你可以用

trackShape : RoundedRectSliderTrackShape()

..但是您必须查看小部件内部并修改

double additionalActiveTrackHeight = 2,

自

double additionalActiveTrackHeight = 0,

请注意，当你更新 Flutter 时，你的修改应该消失了，所以你必须再做一次。

如果必须使用圆角边缘，则只需创建一个并覆盖 to 0 的值。RoundedRectSliderTrackShape()CustomTrackShape()additionalActiveTrackHeight

class CustomTrackShape extends RoundedRectSliderTrackShape {
 
  @override
  void paint(PaintingContext context, Offset offset,
      {required RenderBox parentBox,
      required SliderThemeData sliderTheme,
      required Animation<double> enableAnimation,
      required TextDirection textDirection,
      required Offset thumbCenter,
      bool isDiscrete = false,
      bool isEnabled = false,
      double additionalActiveTrackHeight = 2}) {

    super.paint(context, offset,
        parentBox: parentBox,
        sliderTheme: sliderTheme,
        enableAnimation: enableAnimation,
        textDirection: textDirection,
        thumbCenter: thumbCenter,
        isDiscrete: isDiscrete,
        isEnabled: isEnabled,
        additionalActiveTrackHeight: 0);
  }

}