Container( width: double.infinity, height: ScreenUtil.getInstance().setHeight(500), decoration: BoxDecoration( color: Colors.white, borderRadius: BorderRadius.circular(8.0), boxShadow: [ BoxShadow( color: Colors.black12, offset: Offset(0.0, 15.0), //阴影xy轴偏移量 blurRadius: 15.0, //阴影模糊程度 spreadRadius: 1.0 //阴影扩散程度 ) ]), )