Container(
width: 28,
height: 28,
decoration: BoxDecoration(
color: Colors.green.withOpacity(0.25), // border color
shape: BoxShape.circle,
),
child: Padding(
padding: EdgeInsets.all(2), // border width
child: Container( // or ClipRRect if you need to clip the content
decoration: BoxDecoration(
shape: BoxShape.circle,
color: Colors.blue, // inner circle color
),
child: Container(), // inner content
),
),
),
Container(
height: 200,
width: 200,
decoration: BoxDecoration(
shape: BoxShape.circle,
border: Border.all(width: 1, color: Colors.red)
),
),
Container(
height:80,
width:80,
decoration:BoxDecoration(
color:Colors.red,
borderRadius:BorderRadius.circular(50),
border:Border.all(
color:Colors.white,
width:8
),
),
child:
Center(child:
Text("4",
style:TextStyle(
color:Colors.white,
fontWeight:FontWeight.bold,
fontSize:20
)))
带边框的容器