ValueListener<T> constructor

const ValueListener<T>({
  1. Key? key,
  2. required T value,
  3. required OnStateChanged<T> onValueChanged,
  4. EqualityComparer<T>? equalityComparer,
  5. required Widget child,
})

Creates a ValueListener.

The parameters onValueChanged and child must not be null.

Implementation

const ValueListener({
  Key? key,
  required this.value,
  required this.onValueChanged,
  EqualityComparer<T>? equalityComparer,
  required this.child,
})   : equalityComparer = equalityComparer ?? _defaultEqualityComparer,
      super(key: key);