StreamBuilder

streamBuilder(
  stream: streamNumbers(),
  builder: (context, snapshot) {
    return Column(
      children: [
        Text("Stream Builder"),
        Text("ConState : ${snapshot.connectionState}"),
        Text("Data : ${snapshot.data}"),
        Text("Error : ${snapshot.error}"),
        FilledButton.tonal(
            onPressed: () {
              setState(() {});
            },
            child: Text("RESET"))
      ],
    );
  },
),

Stream<int> streamNumbers() async* {
  for (int i = 0; i < 10; i++) {
    await Future.delayed(Duration(seconds: 1));
    yield i;
  }
}
Dart
복사