RangeController constructor

RangeController({
  1. @required dynamic start,
  2. @required dynamic end,
})

Creates a new instance of RangeController.

The start represents the currently selected value of the range selector. The left thumb of the range selector was drawn corresponding to this value.

The end represents the currently selected value of the range selector. The right thumb of the range selector was drawn corresponding to this value.

start and end

Implementation

RangeController({@required dynamic start, @required dynamic end})
  : assert(start != null),
    assert(end != null),
    _previousStart = start,
    _previousEnd = end,
    _start = start,
    _end = end;