flutter里BoxDecoration的使用

String imageUrl = "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1596115490916&di=7d92e5d22c811f510d01cbd44e2b2d27&imgtype=0&src=http%3A%2F%2Fpic1.win4000.com%2Fwallpaper%2F8%2F58146d6f79b35.jpg";

ImageProvider netImage = NetworkImage(imageUrl);

return Container(width:200,height: 200,

alignment: Alignment.center,

child: Text("这是一个测试控件",style:TextStyle(color: Colors.white,fontSize: 20,fontWeight:FontWeight.bold)),

decoration:BoxDecoration(

image: DecorationImage(image: netImage),

color:Colors.white,

border: Border(top: BorderSide(color: Colors.cyan,width: 5,style: BorderStyle.solid),

left: BorderSide(color: Colors.lightGreen,width: 5,style: BorderStyle.solid),

right: BorderSide(color: Colors.black12,width: 5,style: BorderStyle.solid),

bottom: BorderSide(color: Colors.white,width: 5,style: BorderStyle.solid)),

boxShadow: [

BoxShadow(

color:Color(0xff0000ff),

offset:Offset(0,50.0),

blurRadius:1,

spreadRadius:50,

),

BoxShadow(

color:Color(0xff004600),

offset:Offset(0,40.0),

blurRadius:1,

spreadRadius:40,

),

BoxShadow(

color:Color(0xffaa00ff),

offset:Offset(0,30.0),

blurRadius:1,

spreadRadius:30,

),

BoxShadow(

color:Color(0xffff0000),

offset:Offset(0,20.0),

blurRadius:1,

spreadRadius:20,

),

]

)

);

 

效果：