margin method

Padding margin({
  1. double? l,
  2. double? t,
  3. double? r,
  4. double? b,
})

Implementation

Padding margin({double? l, double? t, double? r, double? b}) => Padding(
      padding: EdgeInsets.fromLTRB(l ?? 0, t ?? 0, r ?? 0, b ?? 0),
      child: this,
    );