在开始使用这些答案之前，请查看Material Card小部件。它还允许你直接通过应用主题定义全局样式:

将小部件包装到容器中，并给它一个盒子阴影列表

如果你在小部件周围包上一张卡片，然后用抬高道具玩一点，也许就足够了。

我使用这个技巧使我的ListTile在列表中看起来更好。

对于你的代码，它可以是这样的:

return Card(
   elevation: 3, // PLAY WITH THIS VALUE 
   child: Row(
      crossAxisAlignment: CrossAxisAlignment.center,
      children: <Widget>[
         // ... MORE OF YOUR CODE 
      ],
   ),
);

The given answers do the trick for outer shadow i.e. around the widget. I wanted a shadow on the widget which is inside the boundaries and according to the github issue there is no inset attribute in ShadowBox yet. My workaround was to add a layer of widget with a gradient using the stack widget so that it looks like the widget itself has the shadows. You must use the mediaQuery for dimensions otherwise the layout will be messed up on different devices. Here's a sample of code for better understanding:

Stack(
            children: <Widget>[
              Container(
                decoration: BoxDecoration(
                  image: DecorationImage(
                    fit: BoxFit.cover,
                    image: AssetImage("assets/sampleFaces/makeup.jpeg"),
                    // fit: BoxFit.cover,
                  ),
                ),
                height: 350.0,
              ),
              Container(
                decoration: BoxDecoration(
                  gradient: LinearGradient(
                    begin: FractionalOffset.topCenter,
                    end: FractionalOffset.bottomCenter,
                    colors: [
                      Colors.black.withOpacity(0.0),
                      Colors.black54,
                    ],
                    stops: [0.95, 5.0],
                  ),
                ),
              )
            ],
          ),

Container可以带一个BoxDecoration(脱离你最初发布的代码)，它带一个boxShadow:

decoration: BoxDecoration(
    borderRadius: BorderRadius.circular(10),
    boxShadow: [
        BoxShadow(
            color: Colors.grey.withOpacity(0.5),
            spreadRadius: 5,
            blurRadius: 7,
            offset: Offset(0, 3), // changes position of shadow
        ),
    ],
),

截图:

Using BoxShadow (more customizations): Container( width: 100, height: 100, decoration: BoxDecoration( color: Colors.teal, borderRadius: BorderRadius.circular(20), boxShadow: [ BoxShadow( color: Colors.red, blurRadius: 4, offset: Offset(4, 8), // Shadow position ), ], ), ) Using PhysicalModel: PhysicalModel( color: Colors.teal, elevation: 8, shadowColor: Colors.red, borderRadius: BorderRadius.circular(20), child: SizedBox.square(dimension: 100), ) Using Card: Card( elevation: 8, shadowColor: Colors.red, child: Container( width: 100, height: 100, color: Colors.teal, ), ) Using Material: Material( elevation: 8, color: Colors.teal, shadowColor: Colors.red, borderRadius: BorderRadius.circular(20), child: SizedBox.square(dimension: 100), )