multiple_stream_builder 1.0.0 multiple_stream_builder: ^1.0.0 copied to clipboard
Widgets for avoiding nested StreamBuilder
multiple_stream_builder #
Flutter widgets for avoiding nested StreamBuilder
Usage example #
var stream1 = Stream<int>.periodic(Duration(seconds: 1));
var stream2 = Stream<int>.periodic(Duration(seconds: 2));
var stream3 = Stream<int>.periodic(Duration(seconds: 3));
// Instead of writing out nested stream builders
Widget build(BuildContext context) {
return StreamBuilder<int>(
stream: stream1,
initialData: 0,
builder: (context, snapshot1) {
return StreamBuilder<int>(
stream: stream2,
initialData: 0,
builder: (context, snapshot2) {
return StreamBuilder<int>(
stream: stream3,
initialData: 0,
builder: (context, snapshot3) {
return Text(
'stream1: ${snapshot1.data} - stream2: ${snapshot2.data} - stream3: ${snapshot3.data}',
);
},
);
},
);
},
);
}
// Pass multiple streams into a single StreamBuilder
Widget build(BuildContext context) {
return StreamBuilder3<int, int, int>(
streams: Tuple3(stream1, stream2, stream3),
initialData: Tuple3(0, 0, 0),
builder: (context, snapshots) {
return Text(
'stream1: ${snapshots.item1.data} - stream2: ${snapshots.item2.data} - stream3: ${snapshots.item3.data}',
);
},
);
}