Flutter常用控件-Container

body:new Center(

child: Container(

child:new Text('Hello ICY'),

alignment: Alignment.topLeft,//Container下的子控件的对齐方式

width:500,

height:300,

//            color: Colors.lightBlue,//背景色不可和渐变色同时存在，冲突

            margin:const EdgeInsets.all(10.0),

padding:const EdgeInsets.fromLTRB(10,100,0,0),

decoration: BoxDecoration(

gradient: LinearGradient(colors: [

Colors.lightBlue,

Colors.greenAccent,

Colors.purple

                ], begin: FractionalOffset(0,0), end: FractionalOffset(0,1)),//渐变色 起始位置

border: Border.all(color: Colors.red, width:2)),//边框

)

),