landscapeLayout property Null safety

  1. @override
List<List<CalculatorButton?>> landscapeLayout
override

Implementation

@override
List<List<CalculatorButton?>> get landscapeLayout => [
      [sqrt, eX, tenX, yX, reciprocal, chs, n7, n8, n9, div],
      [sst, gto, sin, cos, tan, eex, n4, n5, n6, mult],
      [rs, gsb, rdown, xy, bsp, null, n1, n2, n3, minus],
      [onOff, fShift, gShift, sto, rcl, null, n0, dot, sum, plus]
    ];