list<T> method
- {@required BuildContext context,
- @required T valueBuilder(
- BuildContext context
- @required Map<
T, List< caseBuilders,Widget> Function(BuildContext context)> - @required List<
Widget> fallbackBuilder(- BuildContext context
A function which returns a List<Widget>
valueBuilder
is a function which returns a value.caseBuilders
is aMap
of value toList<Widget>
builders, when one of the keys matches the value returns byvalueBuilder
, the correspondingList<Widget>
builder will be used.fallbackBuilder
is a function which returns aList<Widget>
, it is used when none of the keys incaseBuilders
matches the value returns byvalueBuilder
.
Implementation
static List<Widget> list<T>({
@required BuildContext context,
@required T Function(BuildContext context) valueBuilder,
@required Map<T, List<Widget> Function(BuildContext context)> caseBuilders,
@required List<Widget> Function(BuildContext context) fallbackBuilder,
}) {
final T value = valueBuilder(context);
if (caseBuilders[value] != null) {
return caseBuilders[value](context);
} else {
return fallbackBuilder(context);
}
}