silverInsetsSymmetric method
Add horizontal or vertical margins to Sliver widgets.
Implementation
Widget silverInsetsSymmetric(
{double vertical = 0.0, double horizontal = 0.0}) {
final String className = toStringShort();
final isSliverWidget = className.startsWith('Sliver');
assert(isSliverWidget, 'Please use widgets of type Sliver...');
return SliverPadding(
padding: EdgeInsets.symmetric(
vertical: vertical,
horizontal: horizontal,
),
sliver: this,
);
}