give border to container in flutter code example

Example 1: flutter container border

Container(
  decoration: BoxDecoration(
    border: Border.all(
      color: Colors.red,  // red as border color
    ),
  ),
  child: Text("Your text...")
)

Example 2: flutter roudnd border container

Container(
   decoration: BoxDecoration(
    
   borderRadius: BorderRadius.all(Radius.circular(20))
 ),
 child: ...
)

Example 3: container border flutter

BoxDecoration myBoxDecoration() {
  return BoxDecoration(
    border: Border.all(),
  );
}