StreamBuilder<T> constructor Null safety

const StreamBuilder<T>(
  1. {Key? key,
  2. T? initialData,
  3. Stream<T>? stream,
  4. required AsyncWidgetBuilder<T> builder}

Creates a new StreamBuilder that builds itself based on the latest snapshot of interaction with the specified stream and whose build strategy is given by builder.

The initialData is used to create the initial snapshot.

The builder must not be null.


const StreamBuilder({
  required this.builder,
}) : assert(builder != null);