Вместо
Padding(
padding: const EdgeInsets.only(left: 15.0, top: 30.0),
child: SpriiFollowerCountLabel(countFollowers),
)
используйте
Container(
alignment: Alignment.center,
padding: const EdgeInsets.only(top: 30.0),
child: SpriiFollowerCountLabel(countFollowers),
)
, но я бы рекомендовал использовать
Container(
width: profileImageSize,
height: profileImageSize,
decoration: new BoxDecoration(
shape: BoxShape.circle,
image: new DecorationImage(
fit: BoxFit.fill,
image: new NetworkImage("$profileImageUrl"),
),
),
child: Stack(
children: <Widget>[
Container(
alignment: Alignment.bottomCenter,
child: SpriiFollowerCountLabel(countFollowers),
)
],
),
),