Answers for "radius circle in container flutter"

flutter container radius

Container(
  child: Text("It's text..."),
  decoration: BoxDecoration(
    borderRadius: BorderRadius.circular(10),  // radius of 10
    color: Colors.green  // green as background color
  )
)

flutter border radius container

Container(
   decoration: BoxDecoration(
   borderRadius: BorderRadius.circular(20.0),
   color: Colors.red,
   ),
   child: 
),