SignalBuilder
A signal widget builder.
Reacts to the signal
calling the builder
each time.
The signal
and builder
arguments must not be null.
The child
is optional but is good practice to use if part of the widget
subtree does not depend on the value of the signal
.
// sample counter
final counter = Signal(0);
@override
void dispose() {
counter.dispose();
}
@override
Widget build(BuildContext context) {
return SignalBuilder(
signal: counter,
builder: (context, value, child) {
return Text('$value');
},
);
}
If you need to nest multiple SignalBuilder
s you may also check:
DualSignalBuilder
to react to 2 signals at onceTripleSignalBuilder
to react to 3 signals at once.