FAccordionController constructor

FAccordionController({ int min = 0, int? max, })

Creates a FAccordionController.

The min and max values define the minimum and maximum number of expanded sections allowed.

Defaults to no minimum and maximum.

Contract:

• Throws AssertionError if min < 0.
• Throws AssertionError if max < min.

Implementation

FAccordionController({
  int min = 0,
  int? max,
})  : _min = min,
      _max = max,
      controllers = {},
      _expanded = {},
      assert(min >= 0, 'The min value must be greater than or equal to 0.'),
      assert(max == null || 0 <= max, 'The max value must be greater than or equal to 0.'),
      assert(max == null || min <= max, 'The max value must be greater than or equal to the min value.');