Flutter 颤振滑块直到其轨迹边缘才填充

当前代码：

SliderTheme(
  data: SliderThemeData(
    trackHeight: 50,
    activeTrackColor: Colors.white,
    inactiveTrackColor: Colors.white54,
    thumbShape: RoundSliderThumbShape(
      enabledThumbRadius: 0, 
      disabledThumbRadius: 0
    ),
    thumbColor: Colors.white,
  ),
  child: Slider(
    min: 0.0,
    max: (duration!=null)
      ? duration.inMilliseconds.toDouble()
      : 0.0,
    divisions: (duration != null && !(duration.inMilliseconds==0))
      ? duration.inMilliseconds 
      : 1,// division cannot be zero, and null
    value: (this.mounted && position!=null )
      ? position.inMilliseconds.toDouble()
      : 0.0,
    onChanged: (index){
      audioPlayer.seek(Duration(
        milliseconds: index.toInt()
      )).then((x){});
    }
  ),
),

输出：

SliderTheme(
  data: SliderThemeData(
    trackHeight: 50,
    activeTrackColor: Colors.white,
    inactiveTrackColor: Colors.white54,
    thumbShape: RoundSliderThumbShape(
      enabledThumbRadius: 0, 
      disabledThumbRadius: 0
    ),
    thumbColor: Colors.white,
  ),
  child: Slider(
    min: 0.0,
    max: (duration!=null)
      ? duration.inMilliseconds.toDouble()
      : 0.0,
    divisions: (duration != null && !(duration.inMilliseconds==0))
      ? duration.inMilliseconds 
      : 1,// division cannot be zero, and null
    value: (this.mounted && position!=null )
      ? position.inMilliseconds.toDouble()
      : 0.0,
    onChanged: (index){
      audioPlayer.seek(Duration(
        milliseconds: index.toInt()
      )).then((x){});
    }
  ),
),

值=最小值

值=最大值

问题

SliderTheme(
  data: SliderThemeData(
    trackHeight: 50,
    activeTrackColor: Colors.white,
    inactiveTrackColor: Colors.white54,
    thumbShape: RoundSliderThumbShape(
      enabledThumbRadius: 0, 
      disabledThumbRadius: 0
    ),
    thumbColor: Colors.white,
  ),
  child: Slider(
    min: 0.0,
    max: (duration!=null)
      ? duration.inMilliseconds.toDouble()
      : 0.0,
    divisions: (duration != null && !(duration.inMilliseconds==0))
      ? duration.inMilliseconds 
      : 1,// division cannot be zero, and null
    value: (this.mounted && position!=null )
      ? position.inMilliseconds.toDouble()
      : 0.0,
    onChanged: (index){
      audioPlayer.seek(Duration(
        milliseconds: index.toInt()
      )).then((x){});
    }
  ),
),

• 最小值时，轨迹前有一个白色层
• 在“最大值”下，滑块不会一直填充到边

所需输出

• 最小值处无白色层，填充值直到边缘

---

恐怕，使用默认的颤振滑块不可能做到这一点。也许像这样的第三方滑杆可以做到这一点。我在玩弄所有的选项，得出了与上面用户相同的结论。使用

滑块

小部件似乎不可能做到这一点。