list<T> static method

List<Widget> list<T>({ required BuildContext context, required T valueBuilder(BuildContext context), required Map<T, List<Widget> Function(BuildContext context)> caseBuilders, List<Widget> fallbackBuilder(BuildContext context)?, })

A function which returns a List<Widget>

• valueBuilder is a function which returns a value.
• caseBuilders is a Map of value to List<Widget> builders, when one of the keys matches the value returns by valueBuilder, the corresponding List<Widget> builder will be used.
• fallbackBuilder is a function which returns a List<Widget>, it is used when none of the keys in caseBuilders matches the value returns by valueBuilder. If fallbackBuilder is not provided, an empty list will be returned.

Implementation

static List<Widget> list<T>({
  required BuildContext context,
  required T Function(BuildContext context) valueBuilder,
  required Map<T, List<Widget> Function(BuildContext context)> caseBuilders,
  List<Widget> Function(BuildContext context)? fallbackBuilder,
}) {
  final T value = valueBuilder(context);
  if (caseBuilders[value] != null) {
    return caseBuilders[value]!(context);
  } else {
    return fallbackBuilder?.call(context) ?? [];
  }
}