列中的RaisedButton小部件之间出现不需要的空间

添加属性

materialTapTargetSize

MaterialTapTargetSize.shrinkWrap

materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,

如果您检查它的源代码

RawMaterialButton

    Size minSize;        switch (widget.materialTapTargetSize) {          case MaterialTapTargetSize.padded: minSize = const Size(48.0, 48.0); break;          case MaterialTapTargetSize.shrinkWrap: minSize = Size.zero; break;        }        return Semantics(          container: true,          button: true,          enabled: widget.enabled,          child: _InputPadding( minSize: minSize, child: result,          ),        );